Multispectral light-sensitive device and method of making said device

FIELD: physics, optics.

SUBSTANCE: invention relates to a multispectral light-sensitive device and a method of making the said device. The multispectral light-sensitive device has at least one opaque base layer, each base layer having at least two sides provided with groups of light-sensitive pixels, each group of light-sensitive pixels being used to detect light of any spectrum emitted from the front side. Alternatively, the multispectral light-sensitive device has at least one transparent base layer, each base layer having at least two sides provided with groups of light-sensitive pixels, each group of light-sensitive pixels being used to detect light of a spectrum of interest, emitted from the front side from the front or rear side.

EFFECT: invention can be used to simultaneously detect different types of two directions or to detect the type of one direction using the same detector for detection in two directions, thereby increasing efficiency of the detector.

16 cl, 32 dwg

The technical field

The invention relates to a multi-spectral light-sensitive device and method of its manufacture. In particular, the present disclosure relates to a panchromatic photosensitive device, which can simultaneously perceive many of the spectra (e.g., visible and infrared light), and the method of its manufacturing. Here, panchromatic spectrum (or color) contains the whole range of interest. For normal light-sensitive devices (for example, visible light), the panchromatic range contains the entire spectrum of visible light, which contains red, green, blue and white light. For photosensitive devices used for the combination of infrared and visible light, panchromatic spectrum contains spectra of visible and infrared light. The present disclosure relates to multi-spectral photosensitive device, containing for the perception of monochrome and color images.

The level of technology

Traditional technology for development and production of light-sensitive chip (or device) color image involves the use of either single-layer photosensitive pixel, or a three-layer photosensitive pixel. For light-sensitive chip that uses odnokon the second photosensitive pixel, for color images, it must be covered with filter in accordance with a specific pattern such as a Bayer pattern or a mesh pattern. For a photosensitive chip, using a three-layer pixel of perception, there is no need to use a color filter. These traditional technologies for development and production of light-sensitive chip (or device) color image still need to be improved.

In traditional single-layer photosensitive chip color image, two different types of templates are mainly used for obtaining a color signal. In Fig. 1 shows a pattern of the color filter of the first kind, namely the template CYMG (also referred to as a composite pattern of the color filter), which consists of blue, yellow, crimson and green. In Fig. 2 and Fig. 3(a), 3(b) shows several templates filter primary colors (RGB)that is arranged according to the Bayer pattern or a honeycomb pattern, respectively. Both of these template consist of red, green, and blue.

In the color light-sensitive chip, made from a template CYMG, the matrix of photosensitive pixels contains a large number of macropixels. Each macropixel consists of four pixels, each of which is covered by a color filter (C, Y, M, G, respectively. However, in the industry the particular device display template is used the three primary colors (i.e. RGB), and not the template CYMG, and therefore should be the color conversion matrix for color C, Y, M or G in the matrix to RGB conversion template CYMG in the template RGB. In addition, since each pixel point sees only one color (cyan, yellow, Magenta or green), for the perception of the colors RGB of each pixel requires interpolation for the interpolation of missing colors from the neighboring pixel points. In the color light-sensitive chip template Bayer (U.S. patent No. 3971065), the matrix of photosensitive pixels contains a large number of macropixels, each of which contains four pixel covered only RGB colors. The Bayer pattern is additionally requires that each macropixel two elements on one of the diagonals must perceive green color or a color that matches the brightness of the image, while the other two perceived colors are red and blue, or colors associated with the other two different spectrums of visible light. Similarly, because each pixel point sees only one color (red, green or blue), the necessary interpolation for the interpolation of missing colors from the neighboring pixel points to get the other two missing colors at each point. The Bayer pattern has four different orderings, each of which represents concrete is s placed RGB. In a cellular pattern shown in Fig. 3, macropixel contains only three pixels, covered with RGB colors and placed in the form of hexagonal cells. In a cellular pattern, the pixels receiving the RGB colors are uniformly and symmetrically; and the exchange of positions of two pixels stores the mesh template.

As described above, when implementing a color filter formed according to the composite pattern colors (CYMG), the Bayer pattern or a honeycomb pattern, there are three General problems: first, the reduction in sensitivity due to the presence of a film of a color filter (compared with a monochrome photosensitive chip); secondly, the reduction of the effective spatial definition (or resolution) due to color interpolation, which, in turn, leads to the third problem, the color alaising. Usually the color alaising permitted using low-pass filters. However, low-pass filters will reduce the clarity of the image, which exacerbates the second problem.

To prevent deterioration of sensitivity caused by the color filter, and to increase the overall sensitivity in U.S. patent No. 6137100 revealed the alignment characteristics of the perception of light-sensitive pixels RGB, using the characteristics of the photodiodes, which have different sensitivity for different t is billing purposes. In particular, the photodiode is more sensitive to green, to a lesser extent to the red and less blue light. Therefore, areas that are sensitive to blue light, is given the greatest amount of sensitive red - smaller size, and sensitive to green - the smallest size. Increase the color sensitivity of this method, however, is limited. In addition, this method gives special preference template color RGB.

Colored photosensitive device, in General, perceive the continuous spectrum corresponding to RGB color. There are also light sensitive device monochrome images, which are sensitive to everything seems spectrum, or infrared spectrum, or both. The sensitivity of such a monochrome photosensitive device, in the General case, 10 times more than conventional colored photosensitive device template Bayer (under the same physical conditions of production), but this device may not cause a color.

In the patent application entitled “Multi-spectrum photosensitive device and manufacturing method thereof” (PCT/CN2007/071262), previously filed by the author of the present invention provides a photosensitive chip, which uses a two-layer light-sensitive pixels. According to this new method, the range of the upper layer and the lower layer rassle is in the orthogonal or additional form, as shown in Fig. 4 and Fig. 5, so that in any position of the pixel of the light-sensitive pixels on the top layer and bottom layer, respectively, to perceive orthogonal or more range (or visible spectrum or the spectrum of visible and infrared light), thereby maximizing the use of energy of the incident light. This method can be implemented with or without using color filters and also to take advantage of the relationship of spatial resolutions, color reduction and sensitivity. However, this new method does not allow to optimize the design of the physical structure of the upper layer and lower layer.

Traditional technology for development and production of light-sensitive chip (or device) color image has a different characteristic, that is, usually, the perception on the front side or rear side of the chip (for example, in U.S. patents№ 4388532, № 4679068, № 5244817, № 6169369, № 6429036 and no 7265397). U.S. patent No. 5134274 and No. 6191404 worth mentioning in relation to the provision of bilateral photosensitive chip (and systems)that can simultaneously perceive on the front and back. The term “front side” means the side facing the light source on a layer basis chip, respectively, the term “perception from the front side” means the acceptance of light-sensitive pixels on the front side; while the term “rear side” means the side facing the light source onto a layer of the basics of the chip, respectively, the term “perception on the rear side” means the perception of light-sensitive pixels on the rear side. Perception on the rear side requires that the layer basis chip was quite thin and sealed so that the light could penetrate through the layer of the basics and be perceived photosensitive pixels. This two-sided photosensitive chip capable of receiving light simultaneously from the front side and the rear side, i.e. has the characteristic of signal integration of the two different light sources. However, such bilateral photosensitive chip contains only one layer of light-sensitive pixels located on a particular side of the layer basics of chip. Therefore, when the user needs to obtain the perception of color (or multispectral) signal or to accept two different types (or content) on a photosensitive chip, such a single-layer photosensitive chip, capable of perceiving on the two sides is experiencing difficulty. In addition, the single-layer photosensitive chip, capable of perceiving on the two sides requires light signals from two directions, front side and back side, which has a corresponding relationship is on geometrical space, that is, it can be used only for a single species.

Therefore, this prior art photosensitive chip may still have flaws. As for the single-layer photosensitive chip, a bottleneck occurs in the aspect sensitivity, and its efficient use of space and energy not higher than that of the multilayer. As for the multilayer (two-layer or three-layer) of the photosensitive chip, the process is more complex and difficult. Another feature that is missing in the prior art photosensitive chip, is that they cannot perceive light, corresponding to different species, from two directions, front side and back side.

Thus, you still need to improve the prior art to provide a device of perception and the manufacturing method that can combine the advantages of the device of the perception of a monochrome image and perception of the color image and can perceive light from two different directions simultaneously or asynchronously to improve performance chip perception and enhanced functionality of a single chip.

The invention

Technical problem

To overcome the limitations and difficulties faced by the above Uro is the tier equipment, the purpose of this disclosure is the provision of a multi-spectral light-sensitive device and method of its manufacture, which allows you to simultaneously obtain views from different directions.

Technical solution

To facilitate description of the present disclosure and explanation of differences from the prior art it gives definitions the following terms: two-layer device, perception, bilateral device perception and media perception in two directions. Two-layer device of perception means that its light-sensitive pixels are physically divided into two layers (as a two-layer device of perception described in the patent application entitled “Multi-spectrum photosensitive device and manufacturing method thereof” (PCT/CN2007/071262), previously filed by the author of the present invention), each of which has pixels of perception for the perception of a particular spectrum. Bilateral device perception is a photosensitive device having two surfaces perception, and each surface is able to receive at least one direction. The unit of perception in two directions - this unit of perception, able to perceive from two directions (which, in General, form an angle of 180 degrees), i.e. the front side and the rear side of perception can vos is take the light.

The photosensitive device can have one, two or all three of these features: two layers, two sides and two directions. The present disclosure generally refers to double-sided double-layer device of perception (as shown in Fig. 6(a)-(c)), the perception in two directions (for example, described in U.S. patent No. 5134274 and No. 6191404), bilateral device of perception in two directions (as shown in Fig. 6(a)-(c) and Fig. 16) and the bilateral two-layer device of perception in two directions (as shown in Fig. 9(a)-(c)).

The technical solution under the present disclosure provides the following.

Multi-spectral photosensitive device, containing at least one opaque layer; each layer of the framework contains at least two sides, at least two of the sides provided with groups of photosensitive pixels, each group of photosensitive pixels is used for the perception of light spectrum of interest emitted from the frontal direction side, which is a group of photosensitive pixels.

In multi-spectral photosensitive device, there is one layer bases, equipped with two sides of perception, which, respectively, contain svetosavlje the nye pixels, distributed identically or differently, for the perception of different spectra.

Range of interest contains one or more of the spectra of blue, green, red, blue, yellow, white, infrared, red plus infrared, yellow plus infrared and white plus infrared light.

In multi-spectral photosensitive device, the set of lenses mounted, respectively, opposite each side on a layer basis.

A method of manufacturing the above-mentioned multi-spectral photosensitive device, comprising stages on which:

provide at least one opaque layer basis, and each layer of the framework contains at least two parties;

at least two of the sides of the layer of the framework provided by the groups of photosensitive pixels, each group of photosensitive pixels is used for the perception of light spectrum of interest emitted from the frontal direction side, which is a group of photosensitive pixels.

Another type of multi-spectral photosensitive device, containing at least one transparent layer; each layer of the framework contains at least two sides, at least two of the sides provided with groups of photosensitive pixels, each of the groups of the light-sensitive pixels is used for the perception of light spectrum, of interest emitted from the front direction or the back direction side, which is a group of photosensitive pixels.

In multi-spectral photosensitive device, there is one layer bases, equipped with two sides of perception, each of which, respectively, has a light-sensitive pixels that are distributed identically or differently, for the perception of different spectra.

Range of interest contains one or more of the spectra of blue, green, red, blue, yellow, white, infrared, red plus infrared, yellow plus infrared and white plus infrared light.

Upon irradiation with one direction range, the perceived light-sensitive pixels arranged on the back side layer basis, orthogonal spectrum, the perceived light-sensitive pixels arranged in the same positions on the front side.

In addition, when the irradiation with the one direction range, the perceived light-sensitive pixels arranged on the rear side, additional to the spectrum of perceived light-sensitive pixels arranged in the same position on the front side.

Multispectral device perception further comprises a picker line is to be placed, configured for the case when all or part of the pixels on the selected side perceive shielded pixels in the corresponding positions on the side, symmetrical to the selected side.

Picker direction can be synchronous mnogonitochnoy system, each of its gates is located opposite each side of the layer base, and two shutter mounted in front of the two sides opposite each other, are located, respectively, in the open state and the closed state at the same time.

Picker direction can also be shielding film and the shielding film covers part of the pixels on each side of a layer basis in accordance with a pre-established template-direction pixel, and two pixels in the same positions on the front side and rear side, at most, only one of which is covered with a shielding film.

Template-direction pixel selected from a diagonal pattern, the horizontal pattern of every three columns, horizontal template of every two columns, vertical template of every three rows, vertical pattern every two lines and pattern separation region.

In multi-spectral photosensitive device, the pixels on the front side and the rear with the Auron symmetric direction.

In multi-spectral photosensitive device, the set of lenses mounted, respectively, opposite each side of the layer of the framework.

A method of manufacturing the above-mentioned multispectral device, perception, contains the stages on which:

provide at least one transparent layer; each layer of the framework contains at least two parties;

at least two of the sides of the layer of the framework provided by the groups of photosensitive pixels, each group of photosensitive pixels is used for the perception of light spectrum of interest emitted from the rear direction or the frontal direction of the side on which there are groups of photosensitive pixels.

Advantages of the invention

First of all, the production process can be simplified by providing a layer basis, contains at least two sides, which are light-sensitive pixels. Multilayer devices of perception, corresponding to the prior art (including those disclosed in the patent application entitled “A Multi-Spectrum Photosensitive Device and Manufacturing Method Thereof”, filed earlier by the author of the invention), are a type of three-dimensional manufacturing process, which provides layer-by-layer processing of the chip and, finally, forming all processed layers together, resulting in h is th the manufacturing process is relatively complicated, making it difficult to increase productivity. At the same time, the present disclosure performs processing on each side of a layer basis, making the production process approaches to technology-planar process, for example, if the layer framework has two sides, after processing the front side, it is only necessary to turn the layer basis and can be processed directly on the back side, which allows for significant simplification of the production process. Secondly, the observation of different species from different directions is implemented using the same device by installing pixels perception on different sides of the layer basis. For example, choose layer of the substrate with the two sides in the manner of example, when the layer of the framework is opaque, as the front side and the back side layer framework can perceive light on each side, respectively, to obtain species in the forward directions, respectively. When the layer of the framework is transparent, as the front side and the back side layer framework can also perceive light, respectively, to obtain species, respectively, by means of a shutter or template-direction pixel. Compared with the prior art to obtain views from different directions of approach that meets the level of technology is key, involves the application of multiple sets of chips perception and processing schemes; whereas the approach according to the present disclosure involves the perception of species from different directions on different sides of the layer of the framework, thus, in addition to multiple groups of lights, perceived from different directions, only processing circuit, which includes a diagram of the photoelectric conversion processing an electrical signal output circuit and the transmission line, which saves space and money.

As for the transparent layer basis, the pixels of perception provided in the same position as on the front side and the rear side. The same position as on the front side and the rear side in this case means that the irradiation light source corresponding positions on the two sides are exposed to the same beam. Considering the example of a layer structure with two sides, if a point light source vertically irradiates the front side layer basis, the irradiation position on the front side layer of the framework is point A, and the position of the irradiation on the rear side layer basics irradiated through the layer of the framework is to point B, then point A and point B are in the same position in two opposite directions. Thus, the su is basically the problem is the source of the front light will be irradiated point A and point B and the source of the back light will be irradiated point B and point A, which causes interference between species from two directions. To resolve this bidirectional interference, simple processing involves the presence of light-sensitive pixels on one side of the two opposite sides and the absence of light-sensitive pixels in the same position on the other side. However, there are various advantages of providing pixels of perception in the same position on two opposite sides, for example, the energy of the incident light all segments of the spectrum is to a large extent be used to obtain higher efficiency of light to achieve higher sensitivity and dynamic range while reducing electrical noise signal produced by the conversion of light energy into heat energy. To this end, according to the present disclosure, due to the application of funds select the direction that the source of the frontal lighting can't reach point B and point A, when the power of the front light irradiates point A and point B, or source front-lighting can not reach point A and point B (i.e. the selection pattern directions by dividing the time), Kordestani front light irradiates the point B and the point A; or use template-direction pixel, i.e. when the set point A and point B as a front group perception for the perception of the source of the frontal lighting, task C (located on the back side) and point D (located on the front side) as the back of the group perception for the perception of the source of the frontal lighting, so that only one of the two pixels located in the same positions opposite sides, front and back, covered with a shielding film that defines the positions of the pixels are covered with a shielding film on opposite sides to provide maximum use of the energy of incident light and at the same time the implementation of obtaining kinds of different directions without interference.

It must be emphasized that a double-sided double-layer photosensitive device with a transparent layer basis, disclosed in the present disclosure, not only provides great convenience and advantage to bi-directional perception, but also significantly increases the sensitivity of the device, perception, and gamma of the color to be perceived in the same direction. Thus the present invention provides a simple way of integrating the implementation of the perception of color and infrared light on the device perception at low cost.

For specialists in the art of the above-mentioned and other objectives and advantages of the present invention will be apparent from the following detailed descriptions and illustrations of preferred embodiments with reference to the following drawings.

Description of the drawings

Fig. 1 is a diagram showing the pattern of the color filter CYMG.

Fig. 2 is a diagram illustrating a Bayer pattern color filter RGB and its variants.

Fig. 3(a) and 3(b) is a diagram showing the cellular template color filter RGB, respectively.

Fig. 4(a) is a diagram illustrating the relation between the spectra of red, green, blue, yellow, blue, white and infrared light; Fig. 4(b) is a diagram illustrating the relationship between the penetration depth and the wavelength of light (opaque) object, in which line layers are used to simplify implementations of the various devices of perception.

Fig. 5(a) and 5(b) show examples of some orthogonal pairs and fill in the additional colors in which the colors of the two layers up and down in the left part of Fig. 5(a) and 5(b) are complementary to the colors of the two layers up and down in the right part of Fig. 5(a) and 5(b) are orthogonal.

Fig. 6(a)-6(c) illustrate the preferred implementation of the bilateral two-layer device color perception with a Bayer pattern according to the present disclosure, in which the layer of the framework is opaque and the front side is fully symmetrical rear side. It should be noted that, since the unit of perception, shown in Fig. 6(a), 6(b) and 6(c), at the same time has the characteristics of the two layers, and two sides, it is called bilateral two-layer device color perception.

Fig. 7(a)-7(c) illustrate the preferred implementation of the bilateral two-layer device of the perception of color with an opaque layer basis according to the present disclosure and its variants, using generalized Bayer pattern, in which the layer of the framework is opaque and the front side is fully symmetrical rear side. The preferred implementation may provide the device CYMG color perception.

Fig. 8(a)-8(d) illustrate the preferred implementation of the bilateral two-layer device of color perception, the front side of which is made in VI is e mesh pattern according to the present disclosure, and its variants, in which the layer of the framework is transparent and the back side is made in the form of a Bayer pattern (Fig. 8(b)), or a honeycomb pattern (Fig. 8(c)), or homogeneous pattern (Fig. 8(d)), or other templates. Figures explain that the two-sided two-layer device of the perception of color with an opaque layer basics of front side and back side if necessary may not bear any of the template and are not required to be identical.

Fig. 9(a)-9(c) illustrate the preferred implementation of the bilateral two-layer device color perception with a transparent layer basis according to the present disclosure, in which the layer of the framework is transparent and on the front side of the template is used Bayer blue, green, and blue colors, while the back uses the template of the red or infrared colors. In the illustrated example, the pixels reflecting red and red plus infrared light, respectively, are located on the diagonal.

Fig. 10(a)-10(c) illustrate another preferred variant implementation of the bilateral two-layer device color perception with a transparent layer basis according to the present disclosure, in which the layer of the framework is transparent and the front side is used for the perception of blue light, while you are the other side is used for the perception of yellow, green, red or infrared light.

Fig. 11(a)-11(c) illustrate another preferred variant implementation of the bilateral two-layer device color perception with a transparent layer basis according to the present disclosure, in which the layer of the framework is transparent and on the front side is used a honeycomb pattern blue, green, and blue, while the back uses the cellular pattern of red or infra-red flowers. The pixels on the front side are fully consistent geometric positions of the pixels on the back, allowing light emitted from the front side, may extend through the layer of Foundation to the back. In the illustrated example, 2/3 of the pixels on the backside sees the color red, and 1/3 of the pixels perceives red or red plus infrared light.

Fig. 12(a)-12(c) illustrate another preferred variant implementation of the bilateral two-layer device color perception with a transparent layer basis according to the present disclosure, in which the layer of the framework is transparent and on the front side is used a honeycomb pattern of blue light, while the back uses the cellular pattern of red, green and yellow light. The pixels on the front side fully comply with the on the geometric positions of the pixels on the backside, allowing light emitted from the front side, may extend through the layer of Foundation to the back.

Fig. 13(a)-13(c) illustrate the preferred implementation of the bilateral two-layer device color perception with a transparent layer basis according to the present disclosure, in which the layer of the framework is transparent and on the front side of the used uniform pattern of blue light, while the back uses a generic template Bayer red plus infrared, green and yellow light. The pixels on the front side are fully consistent geometric positions of the pixels on the back, allowing light emitted from the front side, may extend through the layer of Foundation to the back.

Fig. 14(a)-14(c) illustrate the preferred implementation of the bilateral two-layer device color perception with a transparent layer basis according to the present disclosure, in which the layer of the framework is transparent and on the front side is used homogeneous blank template colors, green, blue and white (or white plus infrared) light, while the back uses a generic template Bayer red plus infrared, blank and white (or white plus infrared) light. The pixels on the front side is fully consistent geometric positions of the pixels on the backside, allowing light emitted from the front side, may extend through the layer of Foundation to the back.

Fig. 15(a)-15(c) illustrate another preferred variant implementation of the bilateral two-layer device color perception with a transparent layer basis according to the present disclosure, in which the layer of the framework is transparent and on the front side is used homogeneous blank template color green, blue, red (or yellow) and white (or white plus infrared) light, while the back uses a generic template Bayer blue, blank and white (or white plus infrared) light. The pixels on the front side are fully consistent geometric positions of the pixels on the back, allowing the light from the front side may extend through the layer of Foundation to the back.

Fig. 16 is a diagram illustrating the system of perception in two directions with two-sided two-layer device of perception with a transparent layer basis. In the system of bilateral double-layer device of perception is in the center, thanks to a transparent layer basics pixels perception on the front side can simultaneously receive light from the front side and the light from the back side. To separate the species of the front side from the back of a hundred the ons system uses a system of synchronized mechanical seals, in which the shutter is opened, while the other gate is closed. When the mechanical shutter on the front side is in the closed state, the shutter on the back is in the open state, and Vice versa.

Fig. 17 is a diagram illustrating the system of perception in two directions with two-sided two-layer device, perception, receiving the tool direction. In the system of bilateral double-layer device of perception is in the center, thanks to the transparent layer of the base unit of perception can be double-sided double-layer device of perception in two directions with an opaque layer of Foundation or double-sided double-layer device of perception in two directions with template-direction pixel. In the system, since the unit of perception is a function of direction, the unit of perception can take light as the front side and the back side without mechanical shutter and you can get a view of the front side on the pixels front side and a view of the back side on the pixels backside.

Fig. 18 shows bilateral two-layer device perceived template-direction pixel, uncoated opaque film. Fig. 18(a) illustrates that irradiation from the front side of the pixels on frontal the Oh side of the device perceptions will perceive blue, green and blue light, while the pixels on the back side will perceive red light. Fig. 18(b) illustrates that irradiation rear light pixels on the backside of the device perception perceive yellow, green, and blue light, whereas the pixels on the pixel backside perceive blue light. It should be noted that the pixels on the front side are grouped, each group consists of eight pixels, instead of four pixels, and form a repetitive configuration. Thus, the first 4 pixels and the last 4 pixels in the group form a vertical mirror symmetry. The purpose of this placement is to prepare the diagonal placement of an opaque film, as shown in Fig. 19.

Fig. 19(a) and 19(b) illustrate the device of perception in two directions, which is formed by drawing the diagonal of an opaque film on a bilateral two-layer device of perception, as shown in Fig. 18. In the left part of Fig. 19(a) shows an opaque film deposited on the surface of the pixels on the rear diagonal lines on the front side. Then, the irradiation of the front light, the pixels on a diagonal line on the front side perceive blue, green, and blue light, whereas the pixels on a diagonal line on the back side perceive red light; outside dependent on the STI, the front is the side or the back side, due to the opaque film on the back diagonal (front side) of the pixels on the rear diagonal cannot perceive light from the front side. In the right part of Fig. 19(b) shows an opaque film on the surface of the pixels on the front diagonal on the back. Then, the irradiation of the rear light, the pixels on the rear of the diagonal on the back side perceive blue light, while the pixels on the back diagonally on the front side perceive red, green and yellow light; regardless, this front side or back side, due to the opaque film on the front diagonal (front side) of the pixels on the front diagonal cannot perceive light from the back side. Therefore, the pixels on the front side of the bilateral double-layer devices of perception in two directions will get views of the front side, while the pixels on the backside will get the species back side, making the kinds of front side and back side are obtained separately.

Fig. 20(a) and 20(b) show a preferred variant implementation of bilateral double-layer devices of perception with a horizontal line shielding cladding film. The left side of Fig. 20(a) illustrates the screen is the dominant film on the front side and the irradiation from the front side, moreover, the outer surface pixels perception on the front side is covered with a shielding film every two lines and the pixels of perception without shielding film located under the generalized Bayer pattern, color sensing spectra of blue, green, and blue light, respectively. The right side of Fig. 20(a) illustrates pixels of perception on the back side of the irradiation from the front side, and the pixels on the back, which cannot be irradiated due to the presence of a film deposited on a corresponding position on the front side, can't perceive (but able to perceive light from the back side). Because the pixels on the front side is not covered with film, the pixels of perception in the corresponding positions on the front side may perceive red light from the front side. The right side of Fig. 20(b) illustrates a shielding film on the rear side, and the irradiation from the back side, and the outer surface of the pixels of perception on the back side is covered with a shielding film every three lines (interspersed with shielding film on the front side) and the pixels of perception without shielding film perceive the spectrum of blue light. The left part of Fig. 20(b) illustrates pixels of perception on the front side of the irradiation from the back side, etc is what pixels perception on the front side, which cannot be irradiated due to the presence of the shielding film deposited in an appropriate position on the rear side, can't perceive (but able to perceive light from the front side). Because the pixels on the front side is not covered with film, pixels perception on the front side without shielding film can perceive red, green and yellow light from the front side. Pixels not covered by the film, can be placed in various patterns and drawings here show only one of the preferred templates.

Fig. 21(a) and (b) similar to Fig. 20(a) and (b), but the pattern of the film deposited every two lines, and not every three lines, respectively, the placement of pixels not covered by the films, is also regulated. Pixels without films can be placed in various patterns and drawings here show only one of the preferred templates.

Fig. 22(a) and (b) similar to Fig. 20(a) and (b), but the pattern of the films covered every three lines, and not every three columns, respectively, placing pixels not covered by the film, is also regulated. Pixels without films can be placed in various patterns and drawings here show only one of the preferred templates.

Fig. 23(a) and (b) similar to Fig. 20(a) and (b), but the pattern of the films covered every two lines, and not every three hundred the GCA, accordingly, the placement of pixels not covered by the film, is also regulated. Pixels without films can be placed in various patterns and drawings here show only one of the preferred templates.

Fig. 24(a) and (b) illustrate a preferred mode of the shielding film, especially used for monochrome chip perception in two directions with template-direction pixel, perceiving white (or white plus infrared) light. This mode allows you to achieve higher spatial resolution. Monochrome chip perception in two directions can also use the horizontal or vertical cover, as shown in Fig. 21-24. Figures should not be considered in the order of the limitations of the method using template-direction pixel disclosed in the present disclosure.

Fig. 25 shows bilateral two-layer multispectral device perceived template-direction pixel, uncoated opaque film. As shown in Fig. 25(a), the irradiation from the front side of the pixels on the front side of the device perception perceive blank color, green, blue and white plus infrared light, whereas the pixels backside perceive blank color, red and white plus infrared light. As shown the Fig. 25(b), the irradiation from the back side pixels front side perceive blank color, green, red and white plus infrared light, whereas the pixels backside perceive blue, blank and white plus infrared light. It should be noted that the pixels on the front side are grouped, each group consists of eight pixels, instead of the four pixels, which form a repeating configuration. That is, the first 4 pixels and the last 4 pixels in the group form a vertical mirror symmetry. The purpose of this placement is to prepare the diagonal placement of an opaque film, as shown in Fig. 26.

Fig. 26(a) and (b) show the unit of perception in two directions, which is formed by drawing the diagonal of an opaque film on a bilateral two-layer multispectral device of perception, as shown in Fig. 18. The left part of Fig. 26(a) shows an opaque film deposited on the surface of the pixels on the back diagonally on the front side. Then, blank, blue, green and white plus infrared light perceived by the pixels on the front diagonal front side, while the red, blank and white plus infrared light perceived by the pixels on the front diagonal on the back; regardless, this front side or the back of the party, due to the opaque film on the back diagonal (front side) of the pixels on the rear diagonal cannot perceive light from the front side. The right side of Fig. 26(b) shows an opaque film deposited on the surface of the pixels on the back diagonally on the front side. Then, blank, blue, green and white plus infrared light perceived by the pixels on the front diagonal front side, while the red, blank and white plus infrared light are seen on the front diagonal on the back; regardless, this front side or back side, due to the opaque film on the back diagonal (front side) of the pixels on the front diagonal cannot perceive light from the front side. Therefore, the front side of the bilateral double-layer devices of perception will get a view of the front side while the back side will get a view of the back side, to obtain the types of front side and back side separately.

Fig. 27(a) and 27(b) is similar to Fig. 26(a) and (b), but the pattern of the film deposited every two lines, and not every three lines, respectively, the placement of pixels not covered by the films, is also regulated. Pixels without films can be placed in various patterns and drawings here pokazyvayuthih one of your favorite templates.

Fig. 28(a) and 28(b) is similar to Fig. 26(a) and (b), but the pattern of the films covered every three lines, and not every three columns, respectively, placing pixels not covered by the film, is also regulated. Pixels without films can be placed in various patterns and drawings here show only one of the preferred templates.

Fig. 29(a) and 29(b) is similar to Fig. 26(a) and (b), but the pattern of the films covered every two lines, and not every three columns, respectively, placing pixels not covered by the film, is also regulated. Pixels without films can be placed in various patterns, and the drawing here shows only one preferred templates.

Fig. 30(a) and 30(b) illustrate a preferred mode of the films used for monochrome chip perception in two directions with template-direction pixel, perceiving white and white plus infrared light separately. This mode allows you to achieve higher spatial resolution. Fig. 30(a) and (b) differ from Fig. 24(a) and (b) the fact that the chips perception in Fig. 30 can detect visible light and infrared light separately. Monochrome duplex double-layer chip multispectral perception can also use the horizontal or vertical cover, as shown in Fig. 27-29. Figures should not be rassm the diverse ways in order limiting method using template-direction pixel, disclosed in the present disclosure.

Fig. 31 illustrates a monochrome device, perception super-sensitivity that uses the template-direction pixel, diagonal pattern, which can be used for the perception of visible light and infrared light. By applying film in a diagonal pattern shown in Fig. 31, the infrared light can be perceived separately in multispectral monochrome chip perception in two directions with high sensitivity, as shown in Fig. 24.

Fig. 32 illustrates a bilateral device, perception, where the template is applied direction by dividing the area for the perception from two directions. In this implementation, by using the shielding film of the pixel region on the front side can perceive only light from the front side, and a pixel area of the back side can perceive only light from the back side.

Detailed description

Disclosed here multi-spectral photosensitive device, method of manufacture and the perceptual system include a layer basis, one or more of the parties which have groups of light-sensitive pixels on each side that allows you to simultaneously perceive the views from different directions. As the world is but form a layer of the framework is not limited to, for example, it may be rectangular, disc-shaped, hexagonal, etc. If the layer framework is opaque, there are more choices of its form. If the layer of the framework is transparent, it is preferable that it had the form of thin double sided rectangle or hexagon to facilitate finding the location of the respective pixels on opposite sides.

The following is an example according to the present disclosure. In the example, the layer framework is a flat body (i.e. a cuboid very small thickness); light path of the light-sensitive device is a path bilateral perception, i.e. the perception from the front side layer of the substrate and the perception from the back side layer basis. A simple method of manufacturing a photosensitive chip with multi-spectral light-sensitive pixels, perceiving at the same time the two sides, the present disclosure provides for both sides of the layer base, a front side and a back side, the groups of photosensitive pixels for the perception of light with the corresponding direction (the outer surface), and the group of photosensitive pixels contains at least one pixel. As shown in Fig. 6, the layer framework is opaque, thus the om, light from two sides never interferes. Bilateral chip perception, implemented in such a manner equivalent single chip perception when viewed from the front direction and rear direction of the layer basis. We call this kind of chip perception compound bilateral chip perception. Fig. 7 illustrates a diagram of bilateral double-layer chip perception, implemented using template CYMG. The photosensitive chip is equivalent to the Union of two single-layer chips perception. However, each single-layer chip perception has its own processing circuitry; and when implementing the system, each photosensitive chip needs its own wiring to connect to the signal processing unit of the system. As for the photosensitive chip according to the present disclosure, the physical essence is actually a device that has only one set of corresponding circuits in, for example, the circuit of the photoelectric conversion, and one wiring kit outside. This is not only more economically feasible than the Union of two single-layer chips perception, but it is more expedient from the point of view of saving space, which allows you to better adapt to the trends of miniaturization and functional diversification of modern digital products. Frontalin the I side and the back side of the compound bilateral chip perception may use different configurations of colors and pixels, that is, the pixels of the perception of the front side and back side have the same or different distribution and, therefore, perceive the same or different spectra. In Fig. 8 shows that when the front side uses the cellular pattern of RGB colors (Fig. 8(a)), the back side can use the Bayer pattern RGB colors (Fig. 8(b)), or cellular pattern of RGB colors (Fig. 8(c)), or template CYMG. Here is a simple example, which should not be considered in the order limits disclosure.

In Fig. 17 shows a diagram of the system of perception in two directions based on a composite of bilateral chip perception. The system is physically integrated, simple and can open a new application. But for composite bilateral chip perception of light from the front side may not irradiate the back side, and Vice versa. It is not possible to sufficiently take advantage of the double-layer chip perception.

Technical solution transparent bilateral chip perception, which is a little more complicated, but much better is the following.

First of all, the layer of the framework is transparent or nearly transparent (for example, ultra-thin silicon layer of N-type or P-type) and is used as a line layer double-layer chip perception, perceiving specific spectra. Layer basics is divided into frontalin the th side and back side, moreover, the front side is provided with a photosensitive pixels reflecting the first color group, while the back side is provided with a photosensitive pixels reflecting a second group of colors.

The spectra include a combination of the spectrum of blue, green, red and infrared light. The first group of colors viewable on the front side, selected from no more than four colors, which contain a blank color, blue, green, blue, white and white plus infrared light.

Line color layer is provided for the separation of light-sensitive pixels to the color perceived on the front side, above the line layer and the color perceived at the back, was below the line layer by irradiation from the front side (which will be described in detail hereinafter with reference to Fig. 4(b)). As shown in Fig. 4(b), line color layer is the line of separation of the colors between blue and green line (the first layer), or between the green and red line of the second layer), or between the red and infrared light (line third layer), or the boundary line of the maximum wavelength of interest, with infrared light (line fourth layer).

In addition, the wavelength of the color perceived on the backside, more than the wavelength of the color perceived in testwuide position on the front side, and the pixels on the back have the appropriate ratio, the position of the pixel on the front side, but the templates used may vary. The spectrum of each color that is perceived on the back of the full orthogonal spectra colors perceived in the corresponding positions on the front side in the color space of visible light (or visible light plus infrared light). The definition of the term “two colors orthogonal” means that two colors do not have overlapping spectral ranges (theoretically).

In addition, the spectrum of each color that is perceived on the back, additional full range of colors viewable in the corresponding positions on the front side in the spectral space of visible light (or visible light plus infrared light). The definition of two additional color in a certain range (for example, visible light or visible light plus infrared light)” means that the spectra of the two orthogonal colors are added with the formation of a full spectral space of interest (i.e. visible light or visible light plus infrared light).

In addition, when the irradiation from the front side of the second group of colors viewable on the back, includes at most four colors, wybran the x of the empty color green, red, yellow, white, infrared, red plus infrared, yellow plus infrared and white plus infrared light.

The pixels reflecting the colors are arranged in a uniform pattern (in which all pixels have the same color), horizontal template (the template, where the pixels on the same horizontal line have the same color), vertical pattern (in which the pixels on the same vertical line have the same color), a diagonal pattern (in which the diagonal pixels have the same color), generic Bayer pattern (in which the pixels on the same diagonal have the same color, while the pixels on the other diagonal are different colors), YUV422 pattern, the horizontal pattern YUV422, mesh pattern template or even explode (in which four pixels are arranged with uniform interleaving with the same spacing). Some part of these templates will be explained in detail below, and the other part can be found in the literature or an earlier patent application of the author of the present invention, entitled “Multi-spectrum Photosensitive Device and the Manufacturing Method Thereof” (PCT/CN2007/071262).

The front side may also include a first group of photosensitive pixels reflecting the intensity of visible light (white), and the back side is on may also include a second group of photosensitive pixels, perceiving light-sensitive infrared and visible light (white + red). This method is typically used in a monochrome devices of perception.

There are many ways to manufacture the above-mentioned transparent bilateral photosensitive devices, two of which are, respectively, shown in Fig. 9 and 10. In Fig. 11 and 12 provides examples of using a porous template.

Pixels front side and the back side of the chip perception can have a symmetry direction. Here, the chip perception is called symmetric chip perception in two directions. Symmetric chip perception in two directions can perceive light from the front side and back side, and, in addition, in relation to a fixed direction of radiation of the same color can be obtained by flipping the chip. In respect of the symmetric chip perception, front side and back side can be swapped. That is, when the flip chip of the above-mentioned characteristics of the front side and the back side remain unchanged. The symmetric nature is a sufficient condition for chip perception in two directions. In relation to the design of the chip perception, which receives light from only one direction, the front side should be facing the light source;otherwise, the chip will not be able to work normally. This kind of chip perception in one direction can surpass in its characteristics chip perception in two directions, with symmetric character, when the light is perceived with one hand. However, the chip perception in two directions can observe two kinds of directions.

Fig. 11 and 12 show another example of a symmetric color chip perception, which uses a mesh pattern. Fig. 14 and 15 show an example of a symmetric multispectral chip perception, the perceiver white and infrared light.

One feature of the symmetric chip perception, which uses line layer orthogonal colors, is that when you change the direction of the source of light green color remains red and blue are swapped, yellow and blue are swapped and blank color and white (or white plus infrared) are interchanged. The principle is the following: in General, the ability of the absorption spectrum for a pixel of perception correlates with its thickness. As shown in the example blue, green and red light, the wavelength of the three colors, respectively, equal to λ1, λ2, λ3,and λ1<λ2<λ3. When light is emitted from the front side, if the thickness of the pixel of perception in a specific position on the front side of the chip is sufficient so that the pixel can absorb light with wavelength is λ1 HN, the pixel shows blue; if the thickness of the corresponding pixel of perception in the same position on the back side of the chip is sufficient so that the pixel can absorb light with a wavelength of λ2 and λ3, then the corresponding pixel displays green + red = yellow. On the contrary, when the light radiated from the rear side of the pixel of perception at the rear side in this case absorbs the light emitted at the wavelengths λ2 and λ3, and, thus, shows blue + green = cyan, whereas the pixel perception on the front side absorbs light with a wavelength of λ3, thus showing red. That is, the spectra of the perceived pixel on either side of the symmetric chip perception, different irradiation from the front side and the back side, thereby obtaining a different color.

When symmetric chip perception in two directions is used for the perception of light from two different directions in different species, it is obvious that the light from different directions cannot be perceived simultaneously by one and the same pixel, otherwise the image will be messy. There are at least two ways to apply transparent bilateral chip perception for the perception of light with areas of different types.

The first preferred implementation of the chip perception in two directions, perceiving the light is from two directions different types, uses the template selection lines by time division. In this embodiment, synchronized mechanical valves are installed respectively behind the lens located on the front side and the rear side. Through the use of template selection lines by time division, that is, when the shutter on the front side or the rear side is opened and at the same time, the other gate on the back side or the front side is closed, symmetric chip perception in two directions can receive the light from the front side only during the time interval (for example, odd time interval) and to receive the light from the back side during another time interval (for example, an even time interval). System imaging in two directions, using the template selection lines by time division, shown in Fig. 16.

A second preferred implementation of the chip perception in two directions, receiving light from two directions different types, uses template-direction pixel. In this embodiment, the pixel array is divided into a front group perception to perception of light from the front side (for example, the group includes pixels that are on the front Ortega is Ali, or the pixels on the odd rows or columns) and the back of perception for the perception of light from the back side (for example, the group includes pixels located on the rear orthogonal, or the pixels on the even rows or columns). Through the use of template-direction pixel, i.e. the screening group back perception with the perception on the front side and the shielding of the front group perception with the perception on the back of the pixels of different groups can perceive light from different directions. When using template-direction pixel spatial resolution can be reduced, and the pattern formed by colored pixels may require adjustment to the pixel group of the frontal perception and group back perception implemented the reconstruction of the colors, respectively. However, this method does not need any mechanical valves, which are necessary according to the method, based on the choice of directions by time-sharing, which is more suitable for use in limited space. Fig. 17 shows a block diagram of a system forming an image in two directions, where the chip perception in two directions takes the template-direction pixel. Below are described several preferred embodiments n is how many chips perception in two directions using several methods with template-direction pixel.

The third preferred implementation of the chip perception in two directions, receiving light from two directions different types, uses simple way, i.e. the direction through the separation region, as shown in Fig. 32.

Revealed here multispectral perception can be used for the perception of four contiguous spectral bands containing the range of red light, the spectrum of the green light, the spectrum of the blue light range and infrared light. Here, the infrared light also will refer to the main colour. In many applications, infrared light can be neglected. In addition, the photosensitive device is valid for the perception of spectral range compound color, for example yellow (corresponding to red and green), blue (corresponding to green and blue) and white (corresponding to red, green, and blue).

Fig. 4 illustrates the relationship between the spectra and colors of interest, where Fig. 4(a) illustrates the wavelength of different colors, and Fig. 4(b) illustrates the depth of the fall of light with different wavelengths. In Fig. 4(b) shows four lines of the color layer: line of the first layer is the boundary between blue and green, the line of the second layer is the boundary between the green and red line the third layer is the boundary between the red and infrared and line the fourth layer is the boundary of the maximum wavelength of infrared light, of interest. Pixels perception on each layer may not be of the same height or not to appear on the same depth. However, as shown in Fig. 4(b), if there are only the colors on the line of a certain layer on the front side and there are only color under the line of a certain layer on the back side, the pixels of the perception of the front side and the back side can be at the same depth. The advantage of the implementation of the color pixels perception on each side at the same depth is in the simplicity of manufacture of the device of perception. As shown in Fig. 4(a), the wavelength of red light on the back more than the wavelength of blue or blue lights on the sides above the rear side, and the wavelength of the yellow light of longer wavelength blue light, whereas the pixels of perception, the perceiver white light located on the rear side must be empty or transparent. In General the green spectrum pixels of perception, the perceiver yellow and perceiving the blue color may not be in the same position (on different sides).

Blank color (transparent or completely empty color) is implemented on the front side (or the side, referred to as the front side). Panchromatic range (white or white plus infrared) is implemented on the back of the article the side (or side, called back). Therefore, the blank color is always above the line layer and full color is always under the line layer.

To simplify the description of the present disclosure, here we have introduced two terms: additional color and orthogonal color. To this end, we will also call an empty color (transparent or completely empty color) main color that complements full color. Full color in the present disclosure means white for spectra of visible light and white plus infrared composite spectra of infrared and visible light.

In the spectral space of interest (for example, the spectra of visible light or a combination of the spectra of visible and infrared light), if the two colors do not have overlapping spectral ranges, they are referred to as orthogonal colors, e.g. red, green and blue colors are orthogonal to each other. In addition, orthogonal blue yellow and blue orthogonal red. Similarly, infrared orthogonal to all visible light. Thus, infrared orthogonal to each of the colors of visible light, including primary colors, secondary colors and white color (brightness intensity).

In the spectral space of interest (for example, in the visible spectrum, or a combination of the spectra of visible and infrared the Council), if two orthogonal spectra colors are added with the formation of a full spectral space of interest, two orthogonal colors are called complementary colors. For example, for the spectrum of visible light, the blue color is more red and blue color more yellow. Similarly, for the combined spectra of infrared and visible light, infrared light more white light and red plus infrared light and blue light are mutually complementary with blue etc.

In Fig. 5 shows some examples of pairs of orthogonal or complementary colors in the space of visible light or in the composite spectral space of visible and infrared light, where Fig. 5(a) shows examples of pairs of complementary and orthogonal colors in the spectral space of visible light, and Fig. 5(b) shows an example of orthogonal pairs of colors in the spectral space infrared and visible light. These pairs of orthogonal or complementary colors are used in two-layer device of perception.

After determining the line layer of the color perceived by the pixels of perception on the front side, must be over a certain line layer, whereas the color perceived by the pixels of perception on the back side must be orthogonal and, according to which the principle of maximization of energy, additional colors in the corresponding positions on the front side. All the colors perceived by the pixel perception on the backside, are not required to be under the line layer. However, if all the colors perceived by the pixels of perception on the back, are under the line layer to produce devices will be much easier. In General, each layer should not contain more than four different colors to obtain a higher spatial resolution.

Different pixels of perception on one side are in accordance with very good templates to achieve higher spatial resolution. These templates include, but without limitation, the generalized Bayer pattern (as shown in Fig. 9(b)), YUV442 template (configuration YUYV) and cellular pattern (as shown in Fig. 3(a) and Fig. 3(b)).

The present disclosure generally considered the unit of perception, in which the pixels are arranged in a grid or mesh templates. The pixels in the rectangular pattern may be grouped into chetyrehpolnye macropixel, each of which consists of four pixels in the group, or be grouped in vosmiprotsentny macropixel, each of which consists of eight pixels, whereas pixels in a cellular pattern may decompose on trihexane macro is iseli, each of them consists of three pixels in the group. Macropixel is a minimum group of pixels that can simply be duplicated to form a complete pixel matrix, and, in General, consists of neighboring pixels. For rectangular patterns, macropixel may also contain more than eight pixels. As for the two-layer device of perception, the cost of macropixel, with more than eight pixels, is much higher, but it provides some advantages.

Chetyrehpolnye macropixel in one layer may contain one, two, three or four different colors. If chetyrehpolnye macropixel contains only one color, there is only one template for ordering the pixels, i.e. uniform pattern. If chetyrehpolnye macropixel contains two different colors, there are three types of templates ordering, i.e. a diagonal pattern (in which the diagonal pixels have the same color), vertical pattern (in which the pixels on the same vertical line have the same color) and the horizontal pattern (in which the pixels on the same horizontal line have the same color). If chetyrehpolnye macropixel contains three different colors, there are many variations of patterns, sequencing, all of which can be classified as generalized p is the row Bayer (in which two of the same color are aligned diagonally), order YUV422 (in which two of the same color vertically aligned), horizontal order YUV422 (in which two of the same color are aligned horizontally). If chetyrehpolnye macropixel contains four different colors, all templates are ordering for the pixels in it are unified, because templates are always symmetric. In a preferred embodiment of the present disclosure for vosmiballnogo of macropixel four pixel on the backside implemented by duplicating the four pixels located on the front side in accordance with mirror symmetry.

Tragically macropixel in one layer may contain one, two or three different colors, which generally gives thirteen options. By itself, the mesh pattern may have two alignment that promotes or vertical resolution (e.g., Fig. 3(a)), or horizontal resolution (e.g., Fig. 3(b)). All templates trihexane of macropixel should be considered as a porous template, regardless of how many colors contains macropixel.

In Fig. 6(a), (b), (c), respectively, presents the preferred implementation of the bilateral two-layer device of the perception of colors in the Bayer pattern, where the front side contains the pixels reflecting red, green and blue color in the Bayer pattern, and Tul the second side is identical to the front side in color and pattern. Layer basics, located in the middle, is opaque, and therefore the pixels of the perception of the front side can perceive light only from the front side, whereas the pixels of perception backside can perceive light only from the back side.

Fig. 7(a), (b), (c), respectively, illustrate the preferred implementation of the bilateral two-layer device of the perception of colors in a uniform pattern, CYMG, where the front side contains the pixels reflecting blue, yellow, peach and green in a homogeneous pattern, while the back side is identical to the front side in color and pattern. Layer basics, located in the middle, is opaque, and therefore the pixels of the perception of the front side can perceive light only from the front side, whereas the pixels of perception backside can perceive light only from the back side.

The advantage of implementing the opaque layer of the framework is its simplicity and feasibility, which is equivalent to the Union of two normal chips perception with the Bayer pattern.

Fig. 8(a), (b), (c) and (d) are used to explain bilateral two-layer device of perception with an opaque layer framework, in which the front side and the back side is fully able to use different the colors and modes of accommodation. For example, in Fig. 8(a) illustrates a front with mesh pattern RGB, but his back is able to use either the template RGB Bayer array shown in Fig. 8(b), or cellular pattern RGB shown in Fig. 8(c), or uniform pattern CYMG, as shown in Fig. 8(d). Of course, the possible number of patterns and match colors.

Bilateral two-layer device of perception with an opaque layer framework can be used in the system of perception in two directions. In Fig. 17 shows the preferred implementation of the system of perception in two directions, using colored chips perception with an opaque layer of the framework, as shown in Fig. 6-8. Due to the opaque layer of the fundamentals of both sides of the chip perception can simultaneously receive light from the front side and back side. The front side of the chip perception gets the types of the front side while the back side of the chip perception gets the types of the back side. This mode of direction (with an opaque layer of the base) is called the direction by isolation.

Further, according to Fig. 8, consider an example of a method of manufacturing a bilateral two-layer multispectral device of the perception of color with an opaque layer of the substrate and the corresponding system of perception in two directions according to Nast is Adamu disclosure.

Provides an opaque layer framework, which on the front side layer basics multispectral device color perception is created in accordance with the first group of the color pattern (e.g., Bayer pattern, mesh pattern, template, CYMG, etc.); selected colors and patterns are determined by the application without restriction.

The back side layer of the framework provided by the pixels of perception, the perceiver second group of colors, and multispectral device color perception is created in accordance with the second group of color pattern (e.g., Bayer pattern, mesh pattern, template, CYMG, etc.); selected colors and patterns are determined by the application without restrictions, which can be completely different from the front side.

The set of lenses mounted, respectively, on both sides of multispectral device color perception; in which the bolt is installed in the device, primarily intended for exposure control.

In the preferred embodiment shown in Fig. 9, the layer of the framework is transparent, and the front side is equipped with pixels reflecting blue, green, and blue colors, respectively. Since the energy spectrum of the blue light is relatively wider, the number of pixels reflecting blue color, will be relatively more to the to the diagonal, it is shown in Fig. 9(b). The back side contains the pixels of perception for the perception of red or red plus infrared spectrum.

Line color layer is provided (see Fig. 4(b)) for separation of pixels of perception, allowing the color perceived on the front side, are above the line layer and the color perceived at the rear side, are under the line layer. Line color layer is the line of separation of the colors between blue and green line (the first layer), or between green and red line of the second layer), or between the red and infrared color (line third layer), or the boundary line of the maximum wavelength of interest, with infrared light (line fourth layer). Line color layer, shown in Fig. 9(a), is the boundary between red and green.

In addition, the pixels reflecting color on the front side, are arranged in a uniform pattern, the horizontal pattern, a vertical pattern, a diagonal pattern, a generic template Bayer, YUV422 pattern, the horizontal pattern YUV422, the mesh pattern template or even explode. The wavelength of each color that is perceived on the front side, the more the wavelength of the color perceived in the corresponding position of the back side. Fig. 9(b) illustrates a generalized Bayer pattern.

Cu is IU, each color is perceived on the back of the orthogonal color, seen in the corresponding position on the front side in the color space of visible light or visible and infrared light. Additionally and preferably, each color is perceived on the back, additional color, seen in the corresponding position on the front side in the color space of visible light or visible and infrared light.

In the preferred embodiment shown in Fig. 10, the layer of the framework is transparent, and its front side is provided with pixels reflecting blue, while the back contains the pixels of perception for the perception of green, red and yellow. Yellow, with a relatively wide energy range, can be perceived relatively large number of pixels, such as a diagonal, as shown in Fig. 10(a). Line color layer in Fig. 10(a) is the boundary between blue and green. It should be noted that in this figure the front side shown in the lower part to indicate that the front side and the back side is completely determined by the choice of direction (light).

In addition, the pixels reflecting color on the back side, are arranged in a uniform pattern, the horizontal pattern, a vertical is a word template, diagonal pattern, generalized Bayer pattern, template, YUV422, horizontal YUV422 pattern, mesh pattern template or even explode. The wavelength of each color that is perceived on the backside, more than the wavelength of the color perceived in the corresponding position of the front side. Fig. 10 illustrates a generalized Bayer pattern.

In addition, each color is perceived on the back of the orthogonal color, seen in the corresponding position on the front side in the color space of visible light or visible and infrared light. Additionally and preferably, each color is perceived on the back, additional color, seen in the corresponding position of the front side in the color space of visible light or visible and infrared light.

The difference between Fig. 10 and Fig. 9, basically, is to select the line layer. This difference leads to symmetry in the direction between the unit of perception, shown in Fig. 10, and the unit of perception, shown in Fig. 9. Fig. 9 and 10 illustrate an example of the above-mentioned symmetric chip perception in two directions. If the light comes from the front side in Fig. 9, Fig. 9 illustrates an example of light received on the front side of the chip perception, whereas Fig. 10 illustriou the t example light, perceived on the back of the chip perception. On the contrary, if the light comes from the front side in Fig. 10, Fig. 10 illustrates an example of light received on the front side of the chip perception, whereas Fig. 9 illustrates an example of light received on the backside of the chip perception. That is, Fig. 9 and 10 illustrate the colour obtained in the same chip perception from the front side and the back side.

Another type of bilateral double-layer multispectral device color perception, as shown in Fig. 13(a), (b), (c) and (d), can simultaneously detect visible light and infrared light. In the figure, the pixels reflecting infrared light, are always positioned on the rear side (the rear side of the chip), and they can be installed separately or combined with the pixels reflecting a different color (e.g. white plus infrared or red plus infrared). Front side (the front side of the chip) contains the pixels reflecting blue light, and the pixels in each position backside perceive color, orthogonal blue, for example green, yellow and red plus infrared. The preferred embodiment is an example of a combining device color perception with an infrared device perception. For more in the high spatial resolution in the color space of red plus infrared light pixels, perceiving red plus infrared light, located on the diagonal of the back side. The color perceived by the pixels on the front side orthogonal to colors perceived by the pixels in the corresponding positions on the rear side in the spectrum of visible plus infrared light.

Another type of bilateral double-layer multispectral device perception of colors shown in Fig. 14(a) and (b). Fig. 14 illustrates a more complex preferred option implementation. In this embodiment, while the white contains the spectral range above the line layer, the color white can be implemented on the back, because the color is empty color or transparent, as mentioned earlier. In this implementation, color, white color and infrared light are perceived simultaneously. Fig. 14(a) illustrates a colored layer, Fig. 14(b) illustrates that the front side contains the pixels reflecting blank color (transparent), green, blue (or blue) and white (or white plus infrared) on the front side, and Fig. 14(c) illustrates the pixels reflecting blank color, red (red plus infrared) and white (or white plus infrared) on the back. The color perceived by the pixels on the front side orthogonal to colors perceived by the pixels with the actual operation position on the rear side in the spectrum of visible plus infrared light.

Fig. 15 illustrates the options when the chip perception, shown in Fig. 14, is used for perception on the back.

Fig. 9 and 10 actually illustrate color, perceived symmetric chip perception in two directions irradiated from the front side and back side. The preferred implementation shown in Fig. 11 and 12, is identical to that shown in Fig. 9 and 10, using only the cellular pattern RGB and education symmetric chip perception in two directions. Chip perception, shown in Fig. 14 and 15, has a bi-directional symmetry in the spectrum of visible light and infrared light. A common characteristic of these symmetric chips perception in two directions is a transparent layer basis without template-direction pixel. This kind of chip perception can be used to receive light only from one direction or two directions.

When the chip perception in two directions with a transparent layer basis, which has no template-direction pixel, is used for the perception from two directions and the light from two directions will be simultaneously perceived pixels perception on the front side and the rear side, thus, forms the front side and the back side will be blended. The preferred implementation of the method is the isolation of species of the front side and the back side involves the use of simultaneous dual paddles, as shown in Fig. 16. The shutter on the front side and the bolt on the backside are always in a state when one is closed and the other open, so that during any time interval chip perception can only get the light on the front side or the back side, instead of receiving them at the same time. This method is referred to as a direction by time-sharing, i.e. we can get views from different directions on the same chip perception in two directions during different time intervals by fast switching of synchronous double gates.

Further, according to Fig. 13, consider the example of a preferred method of manufacturing a bilateral two-layer multispectral device color perception with a transparent layer of the substrate and the corresponding system of perception in two directions.

Provides a transparent layer framework, in which the color perceived by the pixels on the front side layer basis, contain not more than four kinds of colors (the first color group) from a blank color, blue, green, blue and white, and multispectral device color perception is created in accordance with the selected color pattern (for example, a Bayer pattern or generalized Bayer pattern, mesh pattern, template, CYMG, YUV422 pattern and so on)./p>

Line color layer is provided (as shown in Fig. 4(b)) for separation of pixels of perception, so the colors except for the blank color perceived on the front side, are above the line layer, whereas the color perceived at the rear side, are under the line layer and the wavelength of each color under the line layer is larger than the wavelength of color above the line layer.

Pixels perception for the perception of the second group of colors provided on the back layer basis, and the pixels of perception on the front side are overlapping, the corresponding value on the position of the pixel on the front side; the range of each color that is perceived on the back of the orthogonal or complementary colors perceived in the corresponding positions on the front side in the spectral space of visible light or visible plus infrared light. In addition, the color perceived by the pixels of perception on the backside contain, at most, four kinds of colors selected from a blank color, green, red, yellow, white, infrared, red plus infrared, yellow plus infrared and white plus infrared.

If the unit of perception is used for the perception of light from two directions, the mode selection direction by time-sharing, as shown in f is, 16, it is preferable to use for the isolation of species from the front side and back side. The unit of perception can be confidently used for the perception of light from one direction.

Another way to implement ISO provides the selection mode of the pixel. The following describes some preferred embodiments.

Fig. 18 illustrates the templates used in symmetric bilateral double-layer chip perception with chip perception in two directions, using the selection mode of the pixel. Fig. 18(a) illustrates the chip perception of the irradiated light on the front side, and Fig. 18(b) illustrates the chip perception of the irradiated light on the back. If the pixels on the rear diagonal front side escaped shielding film, as shown in Fig. 19(a), and the pixels on the front diagonal backside escaped shielding film, as shown in Fig. 19(b), we can get the chip perception in two directions with the direction of the pixel. In the chip of perception, shown in Fig. 19, the pixels on the front diagonals of the front side and the back side perceive all the light from the front side, while the pixels on the back of the diagonals of the front side and the back side perceive all the light from the back side than dostigaet the direction of the pixel.

Mode-direction pixel is implemented by screening different pixels front side and the back side of the shielding films. Templates shielding film may be different. In addition to the diagonal pattern shown in Fig. 19, there is also a horizontal line pattern as shown in Fig. 20, the horizontal pattern every two lines as shown in Fig. 21, two vertical pattern, as shown in Fig. 22, the vertical pattern every two rows, as shown in Fig. 23. These templates, and a template-direction pixel implemented in other preferred options for implementation later, are only examples of the essence of the present disclosure, not covering all cases and limitations of the present disclosure. When using a diagonal pattern to obtain uniformly distributed pixels pixels can be duplicated with the help of a group of eight pixels, and not groups of three or four pixels, as in other patterns.

When the chip perception in two directions with template-direction pixel is used for the perception of white and infrared light, the pattern is more complex. Since multispectral perception is an important application of the present disclosure, the preferred options for the implementation of the population will be described below.

Fig. 24 illustrates a chip perception in two directions with template-direction pixel for the perception of white light and infrared. This chip perception is not used for the perception of any color except white or white plus infrared. This kind of chip perception can be used in the system of perception in two directions that require ultra-high sensitivity.

Fig. 25 illustrates the templates used in symmetric bilateral double-layer chip perception, where multispectral chip perception in two directions uses the mode-direction pixel. Chip perception is used for the perception of the colors red, green, blue, blank color and white. Fig. 25(a) illustrates the arrangement of pixels front side and back side, when the chip perception by the light front side. Fig. 25(b) illustrates the perception of the front side and back side, when the chip perception is irradiated rear lighting. If the pixels on the back diagonally on the front side escaped shielding film, as shown in Fig. 26(a), and the pixels on the front diagonal on the back side, as shown in Fig. 26(b), you can get the chip perception in two directions with template-direction pixel. In the chip of perception, shown in Fig. 26, the pixels on the pen is the diagonals of the front side and the back side perceive all the light from the front side, while the pixels on the back of the diagonals of the front side and the back side perceive all the light from the back side, which is the direction of the pixel.

Similarly, in respect of multispectral chip perception in two directions with template-direction pixel, perceiving white and infrared light, in addition to the diagonal pattern shown in Fig. 26, there is a horizontal line pattern shown in Fig. 27, the horizontal pattern every two lines as shown in Fig. 28, two-line vertical pattern, as shown in Fig. 29, the vertical pattern every two rows, as shown in Fig. 30.

If you want to perceive infrared light using a mono chip multispectral perception in two directions with high sensitivity, as shown in Fig. 24, it is possible to apply a diagonal pattern and distribution of the pixels, as shown in Fig. 31. In the group of pixels, which consists of eight pixels on the front side, the pixels on the rear diagonal escaped shielding films, and the pixels on the front diagonal contain the pixel perceiving white plus infrared light, two pixels, perceiving the empty color, and the pixel perceiving white (or infrared) light. In the group of pixels, which consists of eight pixels is lei on the back, pixel on the front diagonal escaped shielding film and the pixel on the rear diagonal contain the pixel perceiving white plus infrared light, two pixels, perceiving the empty color, and the pixel perceiving white (or infrared) light.

Further, according to Fig. 30, consider the example of the method of manufacturing a bilateral two-layer multispectral device color perception with a transparent layer of the substrate and template-direction pixel, and the corresponding system of perception in two directions according to the present disclosure.

Provides a transparent layer framework, in which the color perceived by the pixels on the front side layer basis, contain not more than four kinds of colors (the first color group)selected from a blank color, blue, green, blue and white, and multispectral device color perception is created in accordance with the selected color pattern (for example, a Bayer pattern or generalized Bayer pattern, mesh pattern, template, CYMG, YUV422 pattern and so on).

Line color layer is provided (as shown in Fig. 4(b)) for separation of pixels of perception, so the colors except for the blank color perceived on the front side, are above the line layer, whereas the color perceived at the rear side, are on the line layer and the wavelength of each color under the line layer more than the wavelength of color above the line layer.

Pixels perception for the perception of the second group of colors provided on the back layer basis, and the pixels of perception on the front side are overlapping, the corresponding value on the position of the pixel on the front side; the range of each color that is perceived on the back of the orthogonal or complementary colors perceived in the corresponding positions on the front side in the spectral space of visible light or visible plus infrared light. In addition, the color perceived by the pixels of perception on the backside contain, at most, four kinds of colors selected from a blank color, green, red, yellow, white, infrared, red plus infrared, yellow plus infrared and white plus infrared.

In accordance with certain preferred pattern, for example a diagonal pattern, the horizontal pattern every three lines, horizontal pattern every two lines, the vertical pattern every three lines, vertical pattern every two rows, as shown in Fig. 26-30, some of the pixels on the surface of the front side is covered or filled shielding film, and the other pixels on the back is also covered or filled shielding film, the light and the pixel on the front side without shielding film (on both sides of the front side and back side) can perceive light only on the front side and the pixels on the backside without shielding film (on both sides of the front side and back side) can perceive only the rear light.

The unit of perception is mainly used for perception in two directions. Template-direction pixel allows you to apply simple packing system, as shown in Fig. 17. The shutter is a consumable item.

Specialists in the art it is obvious that the methods of manufacture of the device of the perception of color in full spectrum (in both directions or in one direction), shown in the other figures, identical or similar to those described above, which are not described here.

Specialists in this field of technology is also apparent that by changing the color and placement of pixels on the front side (the front side of the chip) and the rear side (the rear side of the chip), it is possible to provide multiple implementations, different from the above-described preferred option implementation.

According to the present disclosure, the device of the perception of colors can be produced by using the shielding film or without it. However, since the shielding film can absorb light energy and part of the absorbed light energy, in General, is converted to thermal noise, the device of the present disclosure, it is preferable to create without shielding film for maximum convert the output light into electronic signals.

Providing pixels perception on two or more sides of the layer basics multispectral devices of perception, the present disclosure provides not only optimizing for the implementation of bilateral two-layer structure from the point of view of the physical structure, but also the simultaneous perception of different types of two directions, allowing the same device can have different types in different directions, which saves cost and space to be economic. In relation to the opaque layer basics, types of two opposite directions are treated on the same chip perception with the pattern direction by isolation. In respect of the transparent layer basics, delicately arranging and configuring the pixels on the front side and the rear side, on the basis of guaranteeing the complete reconstruction of colors you can leverage the energy of the incident light, or to maximize spatial resolution, or to obtain an increased range of colors at a lower cost. These kinds of two opposite directions are perceived simultaneously on the same chip perception in the mode of direction by dividing the time or mode-direction pixel; when the measure of direction is not used, for example, in the aerospace industry is slavnosti, industrial and combined shooting and so, while easy to implement a combination of two types.

Thanks to the application of the above modes of perception, for example, two parties, two directions, two layers, and so on, according to the present disclosure, the unit of perception in one direction can be used in the system of perception in two directions, which greatly reduces the system cost, reduces the size and reduces the complexity of the system; in addition, it allows you to take on the same system use multiple spectra or multiple directions (or multispectral signals from two directions). For example, modern Luggage capsular type used for the study of disorders of a patient equipped with a camera lens mounted on one end. To get the image in a certain position digestive disorders need to photograph many times, causing great pain to the patient, and also leads to large economic costs. Thus, it is necessary to extend the photographic range of the photographing, making them at once. If the other end of the camera capsule is equipped with a camera, due to modern technical measures need to install two sets of systems in an extremely small space and make it difficult to implement is Italy. However, due to the present disclosure only need to add the lens to the other end, and its chip perception still uses one slice, the requirement for space is small, and the economic cost is lower than the cost of two sets of systems. In addition, if the layer framework is hexagonal, he even can simultaneously perceive the six kinds of directions, i.e. up and down, left and right, forward and backward, greatly increasing the possibility of obtaining the desired image at a time. In addition, according to the present disclosure, the two directions forward and backward can be tracked on one camera, and for many 3G cell phone with two cameras, oriented forward and backward, two cameras, you can replace the camera in two directions, and switching types of forward and backward can be achieved using an electronic switch or a mechanical switch. As for the tracking system of some high-class hotels, if you want to track the types of both ends of the corridor, through the application of the present disclosure, only one set of the tracking system can carry out the necessary monitoring and there is no need for two sets of tracking systems for proper monitoring of two directions. Or example, individual combat equipment in sovremennoye, in the General case, it is necessary to provide a tracking system night vision helmet. When you want to see in two directions forward and backward, requires two sets of tracking systems that are unsuitable for individual combat equipment, which should be easy. Using the present disclosure requires only two lenses, and its perception system consists of only one set, which saves on the economic value and the total weight of individual combat equipment.

Although the present disclosure is described on the example of the preferred embodiments, this disclosure does not limit the disclosure. Experts in the field of devices for the perception of images (for example, semiconductor chips perception image), guided by the disclosure, will be able to offer numerous modifications and extensions of the present invention, without departing from the essence and idea of the invention.

1. Multi-spectral photosensitive device, containing at least one opaque layer basis, and each layer of the framework contains at least two sides, at least two of the sides provided with groups of photosensitive pixels, each group of photosensitive pixels is used for the perception of light spectrum of interest emitted what about the front direction side, displays a group of photosensitive pixels.

2. Multi-spectral photosensitive device according to claim 1, in which there is one layer bases, equipped with two sides of perception, the two sides of perception, respectively, contain light-sensitive pixels that are used for the perception of different spectra, and the photosensitive pixels are the same or different distribution.

3. Multi-spectral photosensitive device according to claim 1, in which the set of lenses mounted, respectively, opposite each side of the layer of the framework.

4. Multi-spectral photosensitive device according to claims 1 to 3, in which the range of interest contains one or more of the spectra of blue, green, red, blue, yellow, white, infrared, red plus infrared, yellow plus infrared and white plus infrared spectrum.

5. A method of manufacturing a multi-spectral photosensitive device, comprising stages, which
provide at least one opaque layer basis, and each layer of the framework contains at least two sides, and
at least two of the sides provided with groups of photosensitive pixels, each group of photosensitive pixels is used for the perception of light spectrum, predstavlyaemogoakterom, emitted from the frontal direction side, which is a group of photosensitive pixels.

6. Multi-spectral photosensitive device, containing at least one transparent layer basis, and each layer of the framework contains at least two sides, at least two of the sides provided with groups of photosensitive pixels, each group of photosensitive pixels is used for the perception of light spectrum of interest emitted from the front direction or the back direction side, which is a group of photosensitive pixels.

7. Multi-spectral photosensitive device according to claim 6, in which there is one layer bases, equipped with two sides of perception, the two sides of perception, respectively, contain light-sensitive pixels that are used for the perception of different spectra, and the photosensitive pixels are the same or different distribution.

8. Multi-spectral photosensitive device according to claim 6, in which the range of interest contains one or more of the spectra of blue, green, red, blue, yellow, white, infrared, red plus infrared, yellow plus infrared and white plus infrared spectrum.

9. Multispectral the Noah photosensitive device according to claim 6, in which the pixels on the front side and the back side is symmetric in the direction of.

10. Multi-spectral photosensitive device according to claim 6, in which the irradiation with the one direction range, the perceived light-sensitive pixels on the back of the orthogonal spectrum, perceived photosensitive pixels in the same positions on the front side.

11. Multi-spectral photosensitive device according to claim 10, in which the irradiation with the one direction range, the perceived light-sensitive pixels on the back, additional spectrum perceived photosensitive pixels in the same positions on the front side.

12. Multi-spectral photosensitive device according to claim 11, further containing a means of direction, and the tool direction is intended for the case when all or part of the pixels on the selected side perceive shielded pixels in the corresponding position on the side, symmetrical to the selected side.

13. Multi-spectral photosensitive device according to item 12, in which the picker is synchronous mnogonitochnoy system, each shutter which is located opposite each side of the layer base, and two gates in the group two opposite sides, the opposite of what you each other, at the same time are, respectively, in the open state and the closed state.

14. Multi-spectral photosensitive device according to item 12, in which the picker is shielding film covering a part of pixels on each side of a layer basis in accordance with a pre-established template-direction pixel, and at most one of the two pixels in the same positions on the front side and the back side is covered with a shielding film.

15. Multi-spectral photosensitive device 14, in which the selection pattern of the pixel selected from the diagonal pattern, the horizontal pattern of every three columns, horizontal template of every two columns, vertical template of every three rows, the vertical pattern of every two rows and pattern separation region.

16. A method of manufacturing a multi-spectral photosensitive device, comprising stages, which
provide at least one transparent layer basis, and each layer of the framework contains at least two sides, and
at least two of the sides provided with groups of photosensitive pixels, each perceiving the photosensitive group is used for the perception of light spectrum of interest emitted from fron the real direction or the rear direction side, where there are groups of photosensitive pixels.