Matrix optical head for frequency-address light beam routing

FIELD: physics.

SUBSTANCE: mirrors/filters are placed in space so as to create a collinear matrix group of rectangular beams through successive reflections and/or transmissions from several optical frequencies emitted by a defined number of radiation sources. The top step consists of matrix of mirrors/filters with size m x n in p items superimposed with each other. The bottom step is a matrix from m mirrors/filters built into p rows with possibility of addressing outgoing beams to columns of matrices of the top step. The mirrors/filters of the matrices have characteristics which enable transmission of spectra of optical frequencies of the incoming beam or part of it and/or transmission of the spectra of optical frequencies of the incoming beam or part of it to the next mirror/filter.

EFFECT: optimisation of the process of frequency-address light beam routing.

5 cl, 11 dwg

 

The present invention relates to a device for use with svetlucavi matrix in the last step of the digital cinema projector of the second generation for display on widescreen video high resolution RGB using laser light or medium power or white light generated by the xenon lamp is a high intensity light source. Spatial and frequency flexibility of such optical devices can be used in the field of telecommunications (such as a router, multiplexer/demultiplexer wavelength, optical switch, optical communication devices, the polarization analyzer and the like).

Showing in cinemas traditionally carried out using 35 mm or 70 mm projectors. Currently there are a number of developments of technology-based DLP or LCD that supports a resolution of 2K × 1K pixels, and GLV technology, selected as a prototype that supports a resolution of 2K × 4K pixels. The use of such technologies for higher resolution leads to an increase in operating costs that is associated with the improvement of basic elements (components DLP, GLV or matrix LCD). The use of microscopic metal components (DMD micromirrors for t is hnologie DLP or thin microplastic for technology GLV) includes the problem of residual magnetic fields, resonance, an early failure (as a result of repeated cycles of torsion), oxidation and limits the achievable maximum frequency sweep or regeneration. For LCD technology the main problems are: 1) microcasa filters, causing transmission loss and distortion of the basic color characteristics or components (ratio of RGB, color and temperature) at the level of recombineering signal; 2) matrix switcher, LCD has limited the frequency of activation/deactivation (cycle interrupt). These interrelated effects are not attenuated by the optimization processing to obtain proper mixing, temperature, or range of colors with a sufficient level of contrast required for spectators cinemas. The scope of digital cinema high quality in the first place, and then be redirected to other market segments (i.e., "home theaters"), when the level of integration (reducing the size of the mechanism sweep/scan) and cost of production will be optimized.

The device according to the present invention will reproduce a sequence of images with high definition (UHD) from the light source on the screen of various sizes and shapes due to a frequency-address head svetlucavi routing. Technical challenge is maintaining substantially the x characteristics of the original signal at the output (range, gamma, resolution, contrast and so on). Videoproiettore carried out almost completely by using the optical system (beam plus microscopic mirrors and/or filters, then mirrors/filters), thus optimized, because it includes only the sequence of reflections/deletions. using mirrors/filters, which are practically not subject to mechanical wear.

The device allows you to create sweetalicious matrix 1, using laser sources of low or medium power, for example 2, 3 and 4, which are the three basic colors (red (R), green (G), blue (B)laser beams or filtered white light, and a matrix of mirrors 5 dimension n×m, the size and shape of which is determined on the basis of the design mirrors/filters. The device includes a certain number of matrices of geometrically aligned mirrors/filters, such as 6, 7, 8 and 9, which regulate and filter the light rays 10 to generate the item svetlucavi matrix 1 projected element or symbol. This system itself free from the expansion functions and uses frequency encoding of each matrix element. The light source include under digital control, which refers to the circuit configuration of the display matrix or character at a certain time t. This Matri the element or symbol will be deployed on the projection surface to generate a complex sequence.

The principle of operation includes sweetalicious matrix scan a certain area type part of the screen by inserting a frequency range corresponding to a particular part of the spectrum of the reflected several times microscopic mirrors, placed in the form of a matrix. The beam will have a diameter of from 0.03 mm to 10 mm in accordance with its intended purpose in the last stage of the projection subsystem. Instead of using temporal and spatial scan uses a method of frequency sweep using mirrors/filters coated with a thin metal layer, which allows a light beam to be reflected and/or to pass through the display surface. Each frequency range, composed of various frequencies, depending on the target structure matrix (n×m), plays the role of a character matrix code in the last stage of the projection system. The frequency of the pulse series are in the same time interval regeneration of all matrix elements. Modulation of the intensity of each frequency corresponds to a time interval of regeneration of each pixel.

In the first stage of the device frequency range passes through a sequence of microscopic mirrors/filters depending on their purpose miss the part of the spectrum and reflect the remaining part of the next mirror/filter. Placentas is of microscopic mirrors/filters allows matrix geometric distribution of the incident beam.

In accordance with a specific configuration example declares the following options.

The device (see figure 1), using continuous or discrete light spectrum. Microscopic mirrors/filters can have the same or different characteristics depending on the target destination.

The group mirrors/filters having identical frequency characteristics, but different value reflecting/throughput speed, which can create sweetalicious matrix n×m from a point source.

Brief description of drawings

Figure 1 - General view of the entire device according to the invention.

Figure 2 is a view in transverse section of one of the mirror/filter.

Figure 3 is a view in transverse section of part of a row or column level matrix, made in the form of a sequence of mirrors/filters.

4 is a General view of the lower level of the matrix.

5 is a General view of the upper level of the matrix.

6 is a view in transverse section of the upper level of the matrix, is capable of spectral and spatial separation and re-Assembly of each pixel.

7 is a cross section of a variant configuration of the device, characterized by the light source, extending around the axis that contains one or more overlapping crowns, increasing in size, placed on them with mirrors/ filters.

Fig - front view of the configuration options of the device, characterized by the light source containing multiple crowns mirrors/filters.

Fig.9 is a front view of the crowns mirrors/filters preceding figures.

Figure 10 is a front view of a variant of the matrix mirrors/filters in the form of a pyramid with three levels with increasing size, for example, respectively containing 4, 12 and 20 mirrors/filters.

11 is a view of one of the mirrors/filters in the form of a directional device, for example, with an angle of 45°.

As shown in figure 1, the device includes upper and lower stages, sequentially composed of a certain number of mirrors/filters arranged in accordance with the desired purpose.

To obtain an elementary mirror/filter (see figure 2) uses a prism or a thin strip, covered with a metal layer. Accordingly, a desired destination this allows you to transmit, or reflect, or to convert part of the characteristics of the incoming beam (e.g., intensity, spectrum, polarization and so on). Accordingly, the process of elementary mirror/filter built into the device or is superimposed on the surface of the steps.

Mirrors/filters in the number of m (see figure 3), arranged in the sequence of mirrors wavelength, allow for the spatial section is of the incoming beam 10 m different rays with certain various components 12, 13 and 14. Each spectral component is defined by a mirror/filter, which is laid at the design stage.

Lower level (see figure 4) consists of a sequence of m elementary mirrors/filters arranged in p rows (for example, in three rows of three basic RGB colors). Each of the aligned surfaces of the mirror/filter performs spatial addressing each of the n columns, composed of m aligned surfaces on the matrix upper stage (see figure 5). In this context, the lower matrix addresses the emergent beams to the columns of the matrix of the upper level device.

As shown in Fig.6, top step perform the selection of the position of the beam on the column due to the sequence of mirrors/filters 15, 16 and 17, using mirrors/filters for wavelength selection. Overlap p of the upper stages performs spectral recombination of each beam 18 and 19 (for example, each component of RGB of each incoming pixel matrix defined output matrix of the device).

In accordance with the configuration and the desired destination, and to use the reverse mode this device can be used not only to obtain singular svetlucavi matrix with one or more of the incident beam (for example, simultaneous generation pixel RGB matrix representing the image is by using frequency encoding information), but also as a generator of one or multiple beams on the basis of the incoming beam matrix (e.g., frequency encoding of the picture).

The device shown in Fig.7 represents another configuration of the device that acts as a generator svetlucavi matrix applied to the last stage of the digital video projector using the scheme of the combination of laser source light or medium power for basic colors (red, green, and blue) and prismatic mirrors. The device includes a certain number of rings 20, which focused laser head, namely in the direction of the center of each ring (see Fig), where mirrors/filters (see 11) align each laser beam to create the projected matrix element or symbol 22. Mirrors/filters installed on a certain number of static or rotating crowns (see Fig.9) to generate the required svetlucavi matrix. Digital control allows you to turn on the laser head at a certain time t in accordance with the desired configuration matrix, or symbol. The scope of application of this system will focus, first, on high-quality digital cinema, as well as on other areas of the market type "home theater".

1. Optical matrix head including upper and lower stages, with the set of mirrors/filters located in the space to organize with the help of a sequence of reflections and/or passages from a number of optical frequencies emitted by a certain number of radiation sources, collinear matrix group of beams of rectangular shape, with the upper level consists of a matrix of mirrors/filters dimension m×n, the number p of pieces made from overlapping each other, the lower level is a matrix of m mirrors/filters arranged in p rows with the possibility of addressing the emergent rays columns of the matrices of the upper stage; this mirrors/filters matrices made with the capability to skip the range of optical frequencies of the incoming beam or part thereof and/or transmit range of optical frequencies of the incoming beam or part of the next mirror/filter.

2. The head according to claim 1, characterized in that the mirrors/filters matrices have the same characteristics.

3. The head according to claim 1, characterized in that the mirrors/filters matrices have different characteristics.

4. The head according to claim 1, characterized in that the matrix of the lower level includes three rows of mirrors/filters.

5. The head according to claim 1, characterized in that the rows of mirrors/filters are designed for three basic colors of radiation sources, namely red, green and blue respectively.



 

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