Illumination device with led and one or more transmitting windows. RU patent 2508616.

FIELD: physics.

SUBSTANCE: invention provides an illumination device 100, having a translucent exit window 200, one or more transmitting windows 300, arranged after one or more LEDs and before the translucent exit window 200, and one or more luminescent material layers 400, which may particularly be applied to the downstream and upstream surfaces of the transmitting windows 300.

EFFECT: simple process of applying layers of luminescent material and stabilising optical properties of device.

15 cl, 15 dwg

The technical field of the invention

The invention refers to the lighting device with one or more missing Windows.

The level of technology of the invention

Lighting devices containing transparent ceramic layer, known in the field of technology Allow ceramic layers or fluorescent ceramic materials and method of their production known in the field of technology. For example, they are mentioned in the US 2005/0269582. US 2005/0269582, for example, reveals the semiconductor device in combination with a ceramic layer, which is located on the way of the light emitted by a light-emitting layer. Ceramic layer consists of or includes material that converts wavelength, such as luminescent material.

Lighting fixtures with impermeable floors and luminescent material, for example, are described in the US 2007/0114562. This document describes, for example, a system of yellow and red lighting, including solid-state light emitter and a luminescent material. Radiation of the system falls into the appropriate cells ITE red and yellow color, with a specific color coordinates in the chart chromaticity CIE. Luminescent material may include one or more fluorescent materials. Lighting system can be used as the red and yellow light street lights or car display.

US 2007/0114562 additionally reveals a system of LED-lighting containing substrate, which is a solid-state light emitter, cover, located on the substrate and stretching over a semiconductor light emitter, cover and substrate jointly determine the internal cavity containing solid-state light emitter; and shell, located in the inner cavity and sealing solid-state light emitter. The luminous material is applied to the inside of the lid.

The essence of the invention

A disadvantage of systems prior art may be that in modules where the light is not re-used many times before radiation from the system (as in the case of, for example, LED-modules backlight), and, in particular, for the formation of warm-white light, relatively highly luminescent material is applied per unit area, and, as a result, it may take a very thick layer of luminescent material. Dissolution of luminescent material in the binder material shall be sufficient to ensure good rheological properties that may result in very thick layers of a binding material, containing particles of luminescent material that may impede the coating process, and can result in stress gradients due to the different material properties of films and coatings. This can easily lead to cracking film, and even detachment.

In addition, characteristics of the components of luminescent material may vary over time, for example, the size distribution of particles or quantum efficiency. This could be offset by fitting the share(s) of luminescent material and/or the efficient application of luminescent material on tape, and preferably optical properties completely covered with film are measured and must be within certain limits. This required the adaptation of applied suspension of luminescent material can lead to considerable waste material due to the fact that a pre-mixed material, as a rule, it cannot be used anymore. Feedback control properties on the fly film in the process of rolled production is a very difficult task in the case of a mixture.

Another issue with prior art may be that a mixture of fluorescent materials can lead to significant interaction luminescent material for most fluorescent materials of interest for lighting. Yellow-green light, emitted from one of luminescent material (or mixture of fluorescent material), can often partially absorbed radiant red-orange light luminescent material (or mixture of fluorescent material), resulting in a lower overall efficiency of the system (due to additional losses of the quantum yield of the red-orange fluorescent material) and reduced color due to changes in the spectral form of a yellow-green light. Last is due to the spectral absorption of the red-orange luminescent material. Typically, this can result in the fall of CRI, for example, with 85 to 77 that makes the light in the majority of applications unfit for the problems of General lighting. Moreover, interaction of luminescent material may require more luminescent material, making the system more expensive.

Another drawback systems prior art may be that the application of a layer of luminescent material as output window or as a material, visible to the observer, may result in color output window, especially yellow-orange color when the system is in the off state. It may be the case when the luminous material can be viewed directly, for example, when this window is radiating the light of the output window. Such colored appearance lamp (or the lighting unit) is often undesirable; as a rule, preferred neutral appearance.

Therefore, the aspect of the invention is to provide an alternative lighting unit, which further eliminates one or more of the above shortcomings. In the first aspect of the invention provides a lighting device containing:

a) lots of light-emitting diodes (LED), made with the possibility of emitting LED-radiation;

b) translucent output window, which has located upstream from the surface of the output window and located downstream surface of the output window;

c) n transmits light boxes placed after the many and LED to translucent output window, with n equal to or greater than 1, each obscuring window is located closer relative to the direction of flow of surface impervious to the window and the button further on the direction of the flow of surface impervious to the window;

d) k layers of luminescent material, k is equal to or greater than 1, in particular, equal to, or greater than 2 layers of luminescent material optional spatially separated, k layers of luminescent material posted after the many and LED to translucent output window, and k layers of luminescent material spatially separated from the many LED;

many of the LED and fluorescent material implemented with the possibility of the formation of light predefined colors, and translucent output window is made with the opportunity to transfer at least part of the world.

Such a device can mainly be more subtle layers of the luminescent material, through which mutual influence of luminescence can be reduced. In addition, the use of thinner layers, preferably with a thickness of less than about 100 microns, can have the above benefits of the treatment. For example, can be applied layers with a thickness in the range of about 5-100 microns thickness, for example, depends on the number of layers of luminescent material and the type of the luminescent material. In addition, the lighting device according to the invention may allow for the separation of different types of fluorescent materials. Thus, lighting properties of the lighting unit regarding the properties of luminescence of various types of fluorescent materials can be optimized. In addition, the lighting device according to the invention may, in particular, look white when it is in the off state, and is illuminated (outside) white light. Other benefits, particularly with respect to systems where the luminous material is provided on the LED may be that can be provided to the real, effective system (with less intensive-reflective/re-absorption) and that may be offered a choice of warm white color (without a significant temperature damping and with the relatively "low" emission of the luminescent material). In addition, the lighting device according to the invention is a relatively simple concept (can be based on blue(them) LED, which has the advantage of relatively easy Assembly and control) and, in addition, possible option adjustable color temperature.

The phrase "n bypasses the Windows placed after and LED to translucent output window indicates that each of these bypasses the Windows takes at least part of the (transformed) LED-light and transmits at least part of it (a converted) LED-light in the direction of translucent output window. One or more of these bypasses the Windows may be contained in the lighting device.

The phrase "k layers of luminescent material" refers to layers of luminescent material, which take at least part of the (transformed) LED-light, but also pass on at least part of it (a converted) LED-light. Consequently, in a number of options for the implementation of obscuring the window(s) contains(at) one or more layers of luminescent material. The phrase "the layers of luminescent material (optional) spatially separated" indicates that the appropriate layers of luminescent material (optional) spatially separated from each other. The term "layers of luminescent material in this document, it is sometimes also indicated as "a coating or covering layer", although the invention is not limited to only the layers.

k layers of luminescent material (also) spatially separated from the LED (i.e., "away"). This implies that the layers of luminescent material, indicated here as "k layers of luminescent material", not marked on the LED (or plotted on a crystal). In particular, a device according to the invention, contains no luminescent material applied to the LED, and/or preferably also does not contain LED dome, containing the luminous material. In another embodiment, the implementation of one or more LED emit light than blue light. Such LED may, however, embodiment, contain luminescent materials put on the LED, and/or contained in the dome of the LED. Such application may, for example, be used to further increase the color scheme and/or to improve the CRI light from lighting unit. Lighting device according to the invention, but, at least, contains a fluorescent layers that are spatially separated from one or many LED. In this document, the term "LED" may refer one or more LED.

The phrase "the layers of luminescent material placed after and LED to translucent output window indicates that the layers of luminescent material and, thus, luminescent material contained therein, are remote from the LED (see also above), but until translucent output window. The phrase "to translucent output window can include a layer of luminescent material in the inner space of this window (see below). One or more k layers of luminescent material, in particular, placed on the nearest road relative to the direction of flow surfaces(s) impervious to open and/or situated further relative to the direction of flow of the surface(s) transparent window n bypasses the Windows or combined into n bypasses the Windows (or a combination of one or more of these options for implementation). Such configuration in this document is also indicated by the phrase "when this pass the window contains a layer of luminescent material", or "when this pass the window contains a closer relative to the direction of flow (or further relative to the direction of flow) covering layer of luminescent material" and similar phrases.

Remote luminescent material in LED light sources looks very useful regarding the effectiveness of the system, in particular, for the formation of light with a low color temperature (warm white). Use of fluorescent material applied on the transmission in the substrate or film can result in high system efficiency, since only a small amount of light reflected back into the LED, where he has a rather high chance of being absorbed. The use of luminescent material, remote from many of the LED may result in increase of efficiency of up to 50% compared to systems with a phosphor material in LED-module.

As mentioned above, the application of a layer of luminescent material on the surface, especially radiating surface (i.e., lying farther relative to the direction of flow or surface of the output window can result in a more concentrated light point of this surface when the lamp is off, and when it is illuminated by white light. The degree of saturation of the emerging color output window can be reduced, according to the invention, through the application of luminescent material damage to the transmitting medium, located between the set of LED and diffuse, translucent material of output window lighting unit. Translucent output window acts as a window to virtual radiation (for optional optical system, where light can be further manipulated, for example, to form the beam). With the increase in distance between the layer of luminescent material and semi-outlet window translucent color saturation of the output window are further reduced. The measures listed above and elsewhere in this document may, among other things, be based on the application of the additional dissipation or reflections in the system. Surprisingly, however, the system is almost saved, while, in General, adding more diffuse and more (partially) reflective surfaces in the system result in a significant reduction in the effectiveness of the system.

Lighting system

Lighting installation in this document is defined as "the device". Regarding one or more LED, one or more missing Windows placed further relative to the direction of flow than one or more LED. Pass the window(s) preferably posted(s) so that essentially all the radiation generated by one or more LED-directed by obscuring window, i.e., bypassing the window(s) is(s) on the way of the light emitted by one or more of the LED. Therefore, in a preferred embodiment luminescent material and/or obscuring the window(s) shall, in essence, all the LED radiation.

As mentioned above, this is the output window is arranged to allow the light output of the lighting unit. However, it is not excluded additional optical devices, such as collimators, reflectors, fiber optic cables, optical layers etc. to direct or influence the light from lighting devices, and these optical devices can be placed after the output window.

With the help of an invention can be implemented remote modules with luminescent material and lamps, which have a very high efficiency and good color reproduction, and which may also have the appearance white or almost neutral in color when you are in the off state. The proposed system with luminescent material or overlooking the window such as film, can also allow the cheap mass production due to the roll of the production process and can combine homogenization with the optimization of efficiency.

As mentioned above, lighting device according to the invention, preferably contains two or more layers of luminescent material. Because there may be one or more missing Windows, one or more, in particular, two or more layers of luminescent material, and since the layers of luminescent material can contain different types of luminescent materials, the invention allows a large number of configurations (or options for implementation).

In a variant of the implementation of the lighting device contains the first obscuring window, located closer relative to the direction of flow of surface impervious to the window of the first impervious to the window contains the first, located closer relative to the direction of flow, the covering layer of luminescent material and farther away on the direction of the flow of surface impervious to the window of the first impervious to the window contains the first, is further relative to the direction of flow, the covering layer of luminescent material.

In an additional instance of the implementation of the lighting device additionally contains the second pass the window, located closer relative to the direction of flow of surface impervious to the window of the second passing of the window contains the second, located closer relative to the direction of flow, the covering layer of luminescent material and farther away on the direction of the flow of surface impervious to the window of the second passing of the window contains the second, is further relative to the direction of flow, the covering layer of luminescent material.

As can be clearly specialist in a given field of technology, other options may include options for implementation, where the lighting system also contains the first obscuring window, located closer relative to the direction of flow of surface impervious to the window of the first impervious to the window contains the first, located closer relative to the direction of flow, the covering layer of luminescent material, and/or farther away on the direction of the flow of surface impervious to the window of the first impervious to the window contains the first, is further relative to the direction of flow, covering a layer of luminescent material, and/or options for implementation, where the lighting device additionally contains the second pass the window, located closer relative to the direction of flow of surface impervious to the window of the second passing of the window contains the second, located closer relative to the direction of flow, the covering layer of luminescent material, and/or the farther away on the direction of the flow of surface impervious to the window of the second passing of the window contains the second, is further relative to the direction of flow, the covering layer of the luminescent material.

Additional embodiment located closer relative to the direction of flow of the surface of the output window translucent output window contains a closer relative to the direction of flow of the covering layer of luminescent material of output window. In particular embodiment located closer relative to the direction of flow of the covering layer of luminescent material of output window contains the luminous material, made with the possibility of radiation of the red light.

Good results can be obtained with lighting devices, where k is in the range from 2 to 5 and n is in the range from 1 to 2. For example, the device may contain, embodiment, two passing the window, each has a close relative to the direction of flow, the covering layer of luminescent material and each has is further relative to the direction of flow, the covering layer of luminescent material (n=2; k=4) and do not necessarily also located closer relative to the direction of flow, the covering layer of luminescent material of output window (in this case n=2 and k=5).

The embodiment of at least two layers of luminescent material contain essentially identical compositions luminescent material. In yet another variant of the implementation of at least two layers of luminescent material contain essentially different formulations of luminescent material. The term "composition of the luminescent material" can refer to a composition containing one or more different luminescent materials. In this context, the terms "different" and "identical", in particular, refer to the color of light formed under equal conditions of excitation. An example of two layers of luminescent material, containing essentially identical compositions with a phosphor coating material may be coatings containing Y 3 Al 5 O 12 :Ce (YAG:Ce), in which both fluorescent materials cerium, essentially, is present in the same molar volume.

In embodiment, the first layer of luminescent material is made with the possibility of formation of a light color, and the second layer of luminescent material is made with the possibility of formation of the light of the second color, the light of the first color has a wavelength dominant radiation greater than the light of the second color, and the first layer of luminescent material is closer relative to the direction of flow than the second layer of luminescent material. For example, emitting red light luminous material may contain located closer relative to the direction of flow of the top layer of luminescent material impervious to the window, and radiant green, or yellow light luminous material may contain located further relative to the direction of flow of the top layer of luminescent material of the same transparent window. The advantage of this configuration may be that the green and/or yellow glow, respectively, essentially, is not absorbed radiant red light luminescent material. If the configuration is done on the contrary, red luminescent material can absorb part of the green and/or yellow glow, respectively. Therefore, in embodiment, the first layer of luminescent material contains the luminous material, made with the possibility of radiation of the red light.

In particular variant of the implementation of one or more layers of luminescent material contain structured covering layers. Therefore, in embodiment, one or more layers of luminescent material, essentially, are monotone layers, more specifically, all layers of the luminescent material are essentially monotone layers, and in the other the implementation of one or more layers of luminescent material contain structured covering layers. The advantage of using one or more structured layers may be that the interaction of luminescent material can be reduced, thus reducing the possible losses (re-absorption).

In particular embodiment one or more Windows, selected from the group consisting of translucent output window and one or more of n bypasses the Windows, contain independently of one or more layers of luminescent material, like half the output window and let in the luminescence of the window, respectively. For example, part of the luminescent material can be combined in one or more missing Windows and/or translucent output window. In a variant of the implementation of the window can be fluorescent ceramics. In another embodiment luminescent material can be distributed in one or more of these Windows.

Therefore, in embodiment, a layer of luminescent material can be covering layer, and in another embodiment it can be combined with a window. The latter is indicated as (semi-transparent) fluorescent (output) window, which thus contains a layer of luminescent material, but may also be visible as a layer of luminescent material, because the window has the properties window (at least partially permeable to light), and luminescent properties.

Such fluorescent Windows can, however, also include coverage of the luminescent material (located closer relative to the direction of flow of surface and/or situated further relative to the direction of flow of the surface).

In addition, the lighting system according to the variant of carrying out the invention may also contain one or more dichroic filters. Such filters, in particular, placed further relative to the direction of flow than LED, and closer relative to the direction of flow than half the output window, and additionally implemented with the possibility of transfer, at least partially, light closer relative to the direction of flow than one or more dichroic filters, and reflect, at least partly, further light on the direction of the stream than one or more dichroic filters.

In addition to k layers of the luminescent material, as described in this document, which, in principle, at least partially, are transparent, in the variant of implementation of the lighting system can optionally contain a layer of luminescent material, made with the possibility of formation of radiation in the reflective state. Such a layer of luminescent material can be specified as layer of luminescent material and can, for example, be placed on the walls and/or basis (such as a substrate) device. Therefore, until otherwise instructed, the layers of luminescent material, in the form of implementation, in particular implemented with the possibility to transfer at least part of the world in the direction of translucent output window or, even more detail, the outer surface of a lighting device further relative to the direction of flow than half the output window. A layer of luminescent material, made with the possibility of formation of radiation in the reflecting state, but, in particular, posted on parts, such as wall LED camera or substrate LED (LED-panel).

The device according to the variant of carrying out the invention may have different types of forms; or more precisely, the output window and obscuring window can have different types of forms. In a variant of the implementation of one or more Windows, selected from the group consisting of translucent output window and one or more of n bypasses the Windows have independent essentially flat shape. In another embodiment, the implementation of one or more Windows, selected from the group consisting of translucent output window and one or more of n bypasses the Windows, have independently, essentially, a convex shape. As will be made clear to the expert in a given field of technology may also be a combination of flat and convex Windows.

In particular embodiment device additionally contains a sensor, in particular, optical sensor, the sensor is made with the ability to essentially only Ohr Hozer. Therefore, the sensor must not be exposed to direct irradiation; thus, the heat load can be essentially prevented. In addition, the use of the optical sensor advantage may be that the optical sensor can detect essentially mixed light, while a sensor that accepts direct light, can receive the light, which is less mixed (for example, due to the fact that the LED light can be only partially after transmission through one or more layers of luminescent material).

An illuminating device of the invention, in particular, completed with possibility of formation of the light of a predefined color such as white light.

The proposed configuration can be applied in covering a large area, atmospheric lighting (for example, light mosaic), backlight conditions (for example, advertising stand), lamps, scattering modified lamps, such as incandescent lamps (GLS) or removable TL lamps and wall lamps and, depending on the scope and limitations of the beam, in some Farah-projectors.

Below are some additional details regarding the LED and fluorescent material, impervious to Windows and translucent output window, respectively.

LED and fluorescent material

The embodiment LED is made with the possibility of emission of blue light and luminescent material contains (a) green luminous material, made with the possibility of absorption of at least part of the blue LED-radiation and emission of green radiation, and (b) red luminescent material, made with the possibility of absorption of at least part of the blue LED light or at least part of the green radiation or, at least, part of blue light and at least part of the green radiation and emission of infrared radiation. Thus, the light of the predefined color can be white light. Depending, inter alia, from the power LED, the spectrum blue LED-radiation and the number of luminescent material can be made white light other color temperatures.

The term "white light", as used in this document, known specialist in a given field of technology. He, in particular, relates to the light, having color temperature (CCT) between about 2000 and 20,000 To, in particular, between 2700 and 20,000 K. For General lighting, CCT, in particular, lies in the range from approximately 2,700 To 6500 K, and for the purposes of rear lighting it lies, in particular, in the range from approximately 7,000 To 20,000 To, and, in particular, within approximately 15 SDCM (standard deviation when negotiating the colors) BBL, more specifically, within approximately 10 SDCM from BBL, even more specifically within 5 SDCM from BBL. The term "pre-defined color" can refer to any color in the color triangle, but may, in particular, refer to white light.

The terms "blue light" or "blue light", in particular, refer to the light with a wavelength in the range of approximately 410-490 nm. The term "green light", refers in particular to the light with a wavelength in the range of approximately 500-570 nm. The term "red light", refers in particular to the light with a wavelength in the range of approximately 590-650 nm. The term "yellow light", refers in particular to the light with a wavelength in the range of approximately 560-590 nm.

These terms do not exclude that, in particular, luminescent material may have radiation wide range, which has length(s) radiation wavelengths outside the range, for example, about 500-570 nm, about 590-650 nm and about 560-590 nm, respectively. However, the prevailing wave length of radiation such luminescent materials (LED) is found in the ranges given in this document. Therefore, the phrase "at wavelengths", in particular, specifies that the radiation may have wavelength dominant radiation in the specified range.

Preferred fluorescent materials are selected from pomegranates and nitrides, in particular, doped with trivalent cerium or ferrous europium, respectively. Options for implementation of garnets, in particular, include A 3 B 5 O 12-grenades, where A contains, at least, of yttrium or of deposition, and B contains at least aluminium. Such a pomegranate can be doped cerium (Ce), (Pr), or a combination of cerium and ; preferably by CE Ce. In particular, B contains aluminum (Al), however, B may also contain gallium (Ga) and/or of scandium (Sc) and/or indium (In), in particular, up to 20% Al, more specifically, up to 10% Al (i.e. B ions essentially consist of 90 or more molar % Al and 10 or less molar % of one or more of the Ga, Sc and In); B can contain up to 10% gallium. In the other variant B and O can at least partially be replaced by Si and N. Element A can, in particular, be selected from the group consisting of yttrium (Y), gadolinium (Gd), terbium (Tb) and lutetium (Lu). Additionally, Gd and/or Tb, in particular, are present only up to the amount of 20% A. In a particular embodiment pomegranate luminescent material contains (Y 1-x Lu x ) 3 B 5 O 12 :Ce, where x is equal to or greater than 0 and less than or equal to 1.

The term "Ce" indicate that part of the metal ion (i.e., in garnet: part "A"-ions) in the fluorescent material is replaced by the Ce. For example, in the case of (Y 1-x Lu x ) 3 Al 5 O 12 :Ce part Y or Lu replaced by Ce. This is known specialist in the field of technology. Ce replace A, as a rule, a maximum of 10%; as a rule, the concentration of the Ce will be in the range of 0.1-4%, in particular 0.1-2% (relative to A). Taking 1% Ce and 10% Y, full, correct formula should be (Y 0,1 Lu 0,89 Ce 0,01 ) 3 Al 5 O 12 . Ce garnets is, essentially, or trivalent known specialist in the field of technology.

Red luminescent material may contain, embodiment, one or more of the materials selected from the group consisting of (Ba, Sr, Ca) S:Eu, (Ba, Sr, Ca)AlSiN 3 :the Eu and (Ba, Sr, Ca) 2 Si 5 N 8 :the Eu. In these mixes europium (Eu) is, essentially, or only ferrous and replaces one or more of these divalent cations. As a rule, the Eu will not be present in quantities greater than 10% of the cation in particular, it will be in the range of approximately 0.5%to 10%, and more specifically, 0,5-5%, compared to cation(s)which it replaces. The term ":the Eu indicates that part of the metal ion is replaced by the Eu (in these examples, the Eu 2+ ). For example, assume 2% of the Eu in CaAlSiN 3 :the Eu, the correct formula should be (Ca 0,98 Eu 0,02 )AlSiN 3 . Divalent europium will usually replace bivalent cations, such as the above dyadic earth cations, in particular, Ca, Sr or Ba.

Material (Ba, Sr, Ca)S:the Eu can also be specified as MS:Eu, where M is one or more elements selected from the group consisting of barium (Ba), strontium (Sr) and calcium (Ca); in particular, M contains in this mixture of calcium or strontium or calcium and strontium, more specifically, calcium. Here, the Eu is introduced and replaces at least a part of M (i.e., one or more of Ba, Sr, Ca).

Additionally, material (Ba, Sr, Ca) 2 Si 5 N 8 :the Eu can also be specified as M 2 Si 5 N 8 :Eu, where M is one or more elements selected from the group consisting of barium (Ba), strontium (Sr) and calcium (Ca); in particular, M contains in this mixture Sr and/or Ba. Additional specific embodiment M consists of, in particular, 50-100% Sr and/or Ba (not taking into consideration the presence of Eu), in particular, 50-90% Ba and 50-0%, in particular, 50-10% of the Sr, as, for example, Ba 1 Sr 0,5 Si 5 N 8 :Eu (i.e. 75% Ba; 25% Sr). Here, the Eu is introduced and replaces at least a part of M (i.e., one or more of Ba, Sr, Ca).

Also, material (Ba, Sr, Ca)AlSiN 3 :the Eu can also be specified as MAlSiN 3 :Eu, where M is one or more elements selected from the group consisting of barium (Ba), strontium (Sr) and calcium (Ca); in particular, M contains in this mixture of calcium or strontium or calcium and strontium, more specifically, calcium. Here, the Eu is introduced and replaces at least a part of M (i.e., one or more of Ba, Sr, Ca).

The term "luminous material"used in this document, in particular, refers to the inorganic luminescent materials, which are also sometimes included as fluorescent materials. These expressions are known specialist in a given field of technology.

Obscuring window

In particular, the non-zero distance from one or more LED (i.e., in particular, from the light-emitting surface (or matrix) of one or more LED) is obscuring the window.

The term "transmissive"used in this document is in one embodiment reference transparent, and in another embodiment of the translucent. These expressions are known specialist in a given field of technology. The term "transmissive" may, in particular, indicate that the transmission of light filtering window, in particular, at least in the blue range, in General, all over the visible range (i.e. approximately 380-680 nm), equal to, at least, approximately 20%, more specifically, at least approximately 50%, even more specifically, at least, approximately 80% (under normal lighting transparent window light).

Pass the window can be self-supporting, but in an alternative embodiment, it can also be flexible film, which, for example, stretched (for example, between the walls of the LED camera or the walls of the cavity of the diffuser (see below) device). Pass the window can be essentially flat shape, plate type, but in another embodiment, it may be, essentially, a convex shape, for example, type dome.

Obscuring window may, in embodiment, contain organic material. Preferred organic materials are selected from the group consisting of PET (polyethylene terephthalate), PE (polyethylene), PP (polypropylene), PC (polycarbonate), P(M)MA (poly(methyl)methacrylate), PEN (), PDMS (polydimethylsiloxane) and COC ( polymer). Polycarbonate, for example, gives good results. However, in another embodiment obscuring window contains inorganic material. Preferred inorganic materials selected from the group consisting of glass (fused) quartz, ceramics and silicones.

Pass the window can be covered by one or both sides with one or two layers of luminescent material. Therefore, in this case, obscuring window can also be specified as skipping the substrate. As mentioned above, the additional embodiment, obscuring window contains at least part of the luminescent material. In another embodiment obscuring window containing the luminous material (layer), additionally provided with a coating on one or both sides, which also contains part of the luminescent material (which may be essentially different color radiation or essentially similar color radiation).

Translucent output window

In particular, the non-zero distance from the table further relative to the direction of flow of a surface impervious to the window, after passing the window is placed translucent output window. It is an output window is arranged to allow the output of a lighting device light from lighting unit.

Translucent output window may, in embodiment, contain organic material. Preferred organic materials are selected from the group consisting of PET (polyethylene terephthalate), PE (polyethylene), PP (polypropylene), PC (polycarbonate), P(M)MA (poly(methyl)methacrylate), PEN (), COC ( polymer) and PDMS (polydimethylsiloxane). However, in another embodiment translucent output window contains inorganic material. Preferred inorganic materials selected from the group consisting of glass (fused) quartz, ceramics and silicones.

As mentioned above, the additional embodiment, the output window contains at least part of the luminescent material. In another embodiment, the output window containing the luminous material (layer), additionally provided with a coating on the nearest road relative to the direction of flow of side, which also contains part of the luminescent material (which may be essentially different color radiation or essentially similar color radiation).

Brief description of drawings

Embodiments of the present invention will be described, only in as an example, with reference to the accompanying schematic drawings where appropriate reference characters indicate the relevant parts, and on which:

Fig.1-1b delineated two variants of the invention;

Fig.2-2d delineated four variants of the invention, in which some of lighting devices are color-separation of fluorescent materials;

Fig.3-3c delineated three variants of the invention, in which lighting devices contain two missing window;

Fig.4-4c delineated three variants of implementation, in which the lighting device has a color separation luminescent materials, and lighting device has a layer covering the output window;

Fig.5-5d delineated 4 variants of implementation, which also apply layers of luminescent material in the reflecting condition;

Fig.6 and 6b delineated some options for implementation with filters;

Fig.7 and 7b delineated some options for structured layers of luminescent material; and

Fig.8 schematically depicts an implementation option in which one or more missing a window and the output window contains a layer of luminescent material.

Shown essential elements. Other elements of type drives, additional optical devices such as optical filters, collimators, lighting etc., well-known specialist in a given field of technology are not depicted on the schematic drawings.

Description of the preferred options for the implementation of

Figure 1 schematically represents the lighting device according to the invention. Lighting device specified reference 100. Lighting device contains 100 light-emitting diode 10, made with the possibility of emission of LED-radiation 11, which could be, for example, the blue light.

Lighting device 100 additionally contains a translucent output window of the 200, having located closer relative to the direction of flow of the surface of 202 output window and the button further on the direction of the flow of surface 201 output window. The latter is directed to the external environment, but the first one, essentially, is directed inside the device 100, more specifically, on one or more LED 10. Translucent output window of the 200 can, for example, be frosted PC or glass.

In schematically depicted embodiment on fig.1-1b translucent output window 200 is essentially a convex shape.

After one or more LED 10 and to translucent output window 200 placed n bypasses the Windows 300(1), 300(2),..., 300(n), where n is equal to or greater than 1. The term "n bypasses the Windows 300(1), 300(2),..., 300(n)indicates that the lighting device is 100 contains the number n bypasses the Windows of 300, in this window specify the reference 300 (1-n), respectively, while obscuring window 300 (1) is the first removes the window 300, obscuring window 300(2) is the second removes the window 300 etc. Each passing box 300 is located closer relative to the direction of flow of the surface of 302 transparent window and the button further on the direction of the flow of impervious surface 301 window. The first of them, in essence, aimed at one or more LED 10, the latter, in essence, aimed at half the output window 200. Thus, the light 100 from one or more LED 10, which flows in the direction of "down" to window(s) 300, can at least partially be passed removes the window(s) 300 and later continues downward to output window 200, and can at least partially be passed translucent exit window of 200, thus, providing 60 light as the light from lighting unit. Such light from lighting unit 60 for example, in the white light.

In the schematic drawings 1a-1b n is 1, i.e., these lighting devices 100 contain one obscuring the box 300, also specified as the first obscuring window 300(1).

The shortest distance from one or more LED 10 to transparent window 300(n) specified reference L2. The distance L2 between one or more LED 10 and first located further relative to the direction of flow removes the window 300, it will usually be in the range of approximately 1-50 mm, in particular, in the range of approximately 1-20 mm

In schematically depicted options for implementing the fig.1-1b passing the window 300(1) have essentially flat shape.

One or more LED 10, as shown schematically, mounted on a substrate 110, which, for example, can be charge with contacts. Substrate 110 can optionally contain the (many) reflector(s) 114. The light that falls on a substrate 110 may, therefore, be reflected back into the device 100. Reflectors are known in the field of technology and may, for example, contain essentially diffuse reflectors type Teflon or may contain partially diffuse and partially mirror reflectors, as is known specialist in a given field of technology.

One or more LED 10 is contained in LED-cell 80. Here, the substrate 110, obscuring window 300(1) and wall 120 LED cameras are LED webcam 80. LED-Luggage 80 can be performed with the opportunity to serve as a mixing chamber of the world. Walls and 120 LED camera (at least, party wall LED camera, directed to one or more LED 10), can be supplied with reflector (not specified in the schematic drawing), or preferably may be diffuse or specular, or a combination of diffuse and mirror reflecting properties.

Obscuring window 300(1)in this embodiment, is only removes the window 300, and thus also removes the window 300, which is the first to contain the box 300, posted to translucent output window 200, as well as the "last" removes the window 300 placed after one or more LED. Therefore, after the first transparent window 300(1) and until translucent output window 200 finite cavity of 180, surrounded by first filtering window 300(1) and semi-exit window of 200 and other optional details of the lighting unit (see below). The ultimate cavity 180 can be performed with the possibility of mixing LED-lights 11 of light and luminescent material or glow 30.

Lighting device 100 additionally contains k layers(400(1), 400(2), ..., 400(k)) luminescent material, where k is equal to or greater than 2. The term "k layers 400(1), 400(2), ..., 400(k) luminescent material" indicates that the lighting device is 100 contains the number k layers 400 luminescent material, the layers of luminescent material are specified reference 400(1-k), respectively, and with a layer of 400(1) of luminescent material is the first layer of 400 luminescent material, a layer of 400(2) of luminescent material is the second layer of 400 luminescent material etc.

In a variant of the implementation of the layer(and) 400 luminescent material may contain multiple layers of luminescent material. However, the term "k layers of luminescent material"used in this document, refers to the separation of the layers of luminescent material which individually can contain multiple layers of luminescent material. In addition, option implementation, these layers 400(1), 400(2),..., 400(k) luminescent material can be separated spatially.

k layers 400(1), 400(2),..., 400(k) luminescent material posted after the LED 10 and to translucent output window 200. Furthermore, the k layers 400(1), 400(2), ..., 400(k) luminescent material spatially separated from the LED (10). The shortest distance from one or more LED 10 to 400 layers of luminescent material (here 400(1) and 400(2)) specified reference L1. Distance L1 between one or more LED 10 and layers 400(1) of luminescent material will be in the range of approximately 1-50 mm, in particular, in the range of approximately 1-20 mm

Turning to fig.1, lighting device 100 contains two layers 400 luminescent material, i.e., k is equal to 2. These layers 400 luminescent material are links 400(1) and 400(2), respectively. In this embodiment, the first of them is placed as located closer relative to the direction of flow coverage for the first transparent window 300(1)and the last is placed as located further relative to the direction of flow coverage for the first transparent window 300(1). Therefore, more specifically, is an illuminating device contains 100 first pass the window 300(1), which is located closer relative to the direction of flow of the surface of 302 transparent window contains the first, located closer relative to the direction of flow, the covering layer of the 422(1) of luminescent material and farther away on the direction of the flow of surface 301 transparent window contains the first, is further relative to the direction of flow, the covering layer of the 421(1) of luminescent material.

Two layer 400(1), 400(2),..., 400(k) luminescent material, here's the first layer 400(1) of luminescent material and a second layer of 400(2) of luminescent material may, in embodiment, contain essentially identical compositions luminescent material (as illustrated in the fig.1 and 1b). However, in another embodiment, the first layer of 400(1) of luminescent material and a second layer of 400(2) of luminescent material may contain essentially different formulations of luminescent material.

One or more LED implemented with the possibility of the formation of light predefined colors, this document also specified as LED-radiation 11. Part of this LED radiation 11 can be absorbed by a luminescent material in layers 400 luminescent material, thus, transforming part of the absorbed light in the glow 30 luminescent material. The combination LED radiation 11 and glow 30 luminescent material provides light 50 predefined color such as white light. Therefore, one or more LED 10 and layers 400(1), 400(2), ..., 400(k) luminescent material implemented with the possibility of the formation of light (50) pre-defined color. Translucent output window of the 200 done with the opportunity to transfer at least part of the world 50. Thus, the light from lighting unit 60 formed during operation of the lighting unit 100. The color of the light from lighting unit 60 may essentially be the same as the color of mixed light, 50. However, in particular when applied variants of implementation, in which half the output window contains 200 situated closer relative to the direction of flow of the output window covering layer of luminescent material (see below), the colours may vary.

In particular embodiment on fig.1 directly next to the LED-camera 80 can be accommodated one or more other cameras or cavities. These cameras are a link 90. LED-Luggage 80 and one or more other cameras, all may be covered with a semitransparent the exit window of 200. Additionally, they may contain wall 91 camera. In a variant of implementation of the first adjacent chamber 90(1) is contained in the lighting device 100, here directly adjoining LED-cell 80, and this is the first adjacent chamber may, in embodiment, contain sensor 70. In a variant of the implementation of the second adjacent chamber 90(2) is contained in the lighting device 100, here directly adjacent to the LED-cell 80, and this second adjacent chamber may, in the variant of implementation, also contain sensor 70. In schematically depicted embodiment part of the walls 91 camera coincides with the walls of 120 LED camera. As shown in the drawing, neighboring camera 90, embodiment, cavities are surrounded by backing 110 and cameras 91 wall.

In embodiment, as is schematically presented in fig.1, and the first, second neighboring camera 90(1), 90(2) are contained in lighting device 100, the first adjacent chamber, for example, consists of the optical sensor 71, and the last adjacent chamber, for example, contains, thermal sensor 72. Cavities can essentially be closed and/or can, for example, have a hole 92 in the final cavity 180. In the schematic embodiment on fig.1 the first adjacent chamber 90(1), containing the optical sensor 71, contains hole 92. In the figured embodiment sensor 71 executed with the ability to receive, in essence, only Ohr Hozer. Consequently, such a sensor 71 may not be exposed to direct irradiation; thus, the heat load can be essentially prevented. Therefore, the optical sensor 71 can detect essentially mixed light. Alternatively, at least part of the wall between the cavity 90(1) and 180 may contain a translucent material that allows part of the world reach 50 optical sensor 71.

Turning to fig.1b essentially diagramed the same version of the implementation of that described above. However, in this embodiment farther away relative to the direction of flow of the surface of 202 output window contains a closer relative to the direction of flow covering the output window of the layer 222 luminescent material, which can, for example, contain luminescent material, made with the possibility of radiation of the red light. Such a covering layer may also belong to a group of k layers 400 luminescent material. Therefore, this layer of luminescent material is listed here with a link 400(3), because he is supposed to be a third layer of luminescent material (i.e., k is equal to 3 on fig.1b).

Fig.2, 2b, 2c and 2d delineated options for implementation, which are similar to those described in more detail above in this document regarding schematic drawings 1a and 1b. Neighboring camera 90(1) and 90(2) are not included in these and additional schematic drawings, but can certainly be part of implementation options, schematically depicted on the other drawings and described below.

Lighting device 100 in these options for implementing additionally contains k layers(400(1), 400(2), ..., 400(k)) luminescent material, where k is equal to or greater than 2. Turning to fig.2, 2b, 2c and 2d, schematically shown as a lighting device contains 100(at) two layers 400 luminescent material, i.e., k is equal to 2. These layers of luminescent material are links 400 (1) and 400(2). In this embodiment, the first of them is placed as located closer relative to the direction of flow coverage for the first transparent window 300(1)and the last is placed as located further relative to the direction of flow coverage for the first transparent window 300(1). Therefore, more specifically, is an illuminating device contains 100 first pass the window 300(1), which is located closer relative to the direction of flow of the surface of 302 transparent window contains the first, located closer relative to the direction of flow, the covering layer of the 422(1) of luminescent material and farther away on the direction of the flow of surface 301 transparent window contains the first, is further relative to the direction of flow, the covering layer of the 421(1) of luminescent material.

On fig.2 shows a version of the implementation of the lighting unit 100 containing one or more blue LED 10 with the film as a transparent window 300 installed on one or more LED 10 with a film coated on both sides of the same mixture of luminescent material. These collateral, i.e., (first) located closer relative to the direction of flow of the covering layer of the 422(1) and (first) is further relative to the direction of flow of the covering layer of the 421(1), the listed references 422(1) and 421(1), respectively.

Preferably, both coverage 422(1) and 421(1) have the same thickness; preferably, both have the same coverage application of luminescent material. This can lead to an acceptable thickness of a layer of luminescent material and rheology of mixtures for the application process and to a great resistance to thermo-mechanical stress.

Therefore, at least two layers of luminescent material, here, the first layer 400(1) of luminescent material and a second layer of 400(2) of luminescent material may contain essentially identical compositions luminescent material.

On fig.2b shows a version of the implementation of the lighting unit 100 containing one or more blue LED 10 with the film as a transparent window 300 installed on one or more LED 10, covered with a film radiant red light luminescent materials containing layer 400(1) of luminescent material on the surface of 302 impervious to the window, turned to one or more blue emitting LED 10, and radiates yellow light luminescent materials containing layer 400(2) of luminescent material on the other side transparent window 300. These coatings are links 422(1) and 421(1), respectively.

For example, at a closer relative to the direction of flow of the surface of 302 may apply radiant red-orange light luminous material, for example, Sr 2 Si 5 N 8 :Eu (Ca, Sr) 2 Si 5 N 8 :Eu, (Ba,Sr) 2 Si 5 N 8 :the Eu or CaAlSiN 3 :the Eu or (Ca,Sr)AlSiN 3 and the table further relative to the direction of flow of the surface 301 may be used radiant yellow-green light luminous material, for example, (Y,Lu,Gd) 3 Al 5 O 12 :Ce, (Ba, Sr) 2 SiO 4 :the Eu or SrSi 2 O 2 N 2 :the Eu. This can lead to the independent the use of two formulations of luminescent material, allowing easy management included in a General process stream closed cyclic process and reduced material consumption and higher efficiency of the system, as well as to higher color rendering characteristics of the lighting system through the installation of a film coated with red-orange luminescent material to be directed to one or more excited LED 10 (as red-orange light, essentially, is not absorbed radiant yellow-green light fluorescent material).

Note that you can also apply a different division of luminescent materials, which initially may not be associated with the colour of the fluorescent material, as, for example, rather thermal stability. For example, you can use colored luminous material on a transparent or semi-transparent window (i.e. window overlooking 300), addressed to one or more (blue) LED 10, i.e. on the above located closer relative to the direction of flow of the top layer of 422(1), for example, with such suspension luminescent material, that at least 60% (blue) light 11 transformed the luminescent material, and the second color luminescent material may be on the other side of the substrate, a convert from one or more LED 10, i.e., the above is further relative to the direction of flow of the covering layer of the 421(1). You can use the luminous material, which is most sensitive to the called thermal or way deterioration or cooling (optional designated as sensitive to the luminous material"), overlooking the box 300, which is installed on one or more (blue) LED 10 floor with sensitive to combat luminescent material drawn from one or more LED 10, another luminous material(s) (which may be specified as insensitive to the effects of material") is used by , directed to one or more LED 10. This luminous material can absorb a large part of the (blue) light 11. Obscuring window 300 may be a poor conductor of heat (thermal conductivity, for example, approximately < 0.1 W/MK; thickness, for example, approximately > 2mm). Thus sensitive to the luminous material is thermally essentially separated from the other luminescent materials and is subject to much lower (blue) radiation, resulting in weakened conditions impact and a long life time.

In both cases, at least two layers 400(1), 400(2) luminescent material, containing essentially different formulations of luminescent material. Therefore, at least two layers of luminescent material, here, the first layer 400(1) of luminescent material and a second layer of 400(2) of luminescent material may contain essentially different formulations of luminescent material.

An implementation option schematically depicted on fig.2, can be essentially identical to the options for the implementation of the imaged on fig.2 and 2b, which are described in more detail earlier in this document. However, translucent output window 200 in this embodiment is essentially flat.

An implementation option schematically depicted on fig.2d, can be essentially identical to the options for the implementation of the imaged on fig.2, 2b and 2c, which are described in more detail above. However, translucent output window 200 in this embodiment, essentially, is convex, and obscuring the box 300, essentially, is convex.

Fig.3, 3b and 3c delineated similar options for implementation, as described in more detail above in this document regarding schematic drawings. Neighboring camera 90(1) and 90(2) are not included in the schematic drawings, but, of course, variants can be part of schematically depicted options for implementation.

Lighting device specified reference 100. Lighting device contains 100 light-emitting diode(s) 10, made with the possibility of emission of LED-radiation 11, which could be, for example, the blue light. Lighting device 100 additionally contains a translucent output window of the 200, having located closer relative to the direction of flow of the surface of 202 output window and the button further on the direction of the flow of surface 201 output window. The latter is directed to the external environment, but the first one, essentially, is aimed at one or more LED 10. In schematically depicted embodiment on fig.3 and 3b translucent output window of the 200 has essentially flat shape; in schematically depicted embodiment on fig.3 translucent output window 200 is essentially a convex shape.

After LED 10 and to translucent output window 200 placed n bypasses the Windows 300(1), 300(2),..., 300(n), where n is equal to or greater than 1. In the schematic drawings 3a, 3b and 3c n = 2, i.e., these lighting devices 100 contain two missing a window of 300, also specified as the first obscuring window 300(1) and the second obscuring window 300(2). In all variants of implementation, schematically depicted on fig.3, 3b and 3c, allowing a window 300(1) and 300(2) have essentially flat shape. However, other options are possible, see also above. Allow the window 300(1) and 300(2) may, for example, be films, which can, for example, be the basis for one or more of the k layers 400 luminescent material.

Lighting device 100 in these options for implementing additionally contains k layers(400(1), 400(2), ..., 400(k)) luminescent material, where k is equal to or greater than 2. Turning to fig.3, 3b and 3c, schematically shown as a lighting device contains 100(at) four layers of 400 luminescent material, i.e., k is equal to 4. These layers of luminescent material listed links 400(1), 400(2), 400(3) and 400(4), respectively, in order from top to bottom in the direction of flow.

In this variant of the implementation of the first two layers 400(1) and 400(2) of luminescent material placed as located closer relative to the direction of flow coverage for the first transparent window 300(1) and as located further relative to the direction of flow coverage for the first transparent window 300(1), respectively. Therefore, more specifically, is an illuminating device contains 100 first pass the window 300(1), which is located closer relative to the direction of flow of the surface of 302 transparent window contains the first, located closer relative to the direction of flow, the covering layer of the 422(1) of luminescent material and farther away on the direction of the flow of surface 301 transparent window contains the first, is further relative to the direction of flow, the covering layer of the 421(1) of luminescent material.

In this variant of the implementation of the other two layers 400(3) and 400(4) of luminescent material placed as located closer relative to the direction of flow coverage for the second transparent window 300(2) and as located further relative to the direction of flow coverage for the second transparent window 300(2), respectively. Therefore, more specifically, is an illuminating device contains 100 second obscuring window 300(2), which is located closer relative to the direction of flow of the surface of 302 transparent window contains the second, located closer relative to the direction of flow, the covering layer of the 422(2) of luminescent material and farther away on the direction of the flow of surface 301 transparent window contains the second, is further relative to the direction of flow, the covering layer of the 421(2) of luminescent material.

These options for implementation may, for example, be used for application of remote luminescent materials at least two bypasses the Windows of 300 (such as film), installed between one or more LED 10 and semi-exit window of 200, i.e. to apply at least two missing a window 300 (such as film)coated with a luminescent material on top of the matrix LED to allow more subtle layers of the 400 luminescent material, and thus reducing the heat in the missing boxes 300 with luminescent material; preferably, sensitive to the luminous material is used as a a relatively thin layer on a different window overlooking 300 than the other luminous material(s); this could lead to an acceptable thickness of a layer of luminescent material, e.g., < 50 microns with limited heat dissipation, for example, < 0.04 W/cm 2 , layer and fairly good conductivity, surface coating and subsequent transfer of heat to the environment.

Therefore, these options for implementation may, for example, be used for the separation of sensitive luminescent material and thermally sustainable luminescent material and to increase the square surface of the luminescent material, using two pass the window 300 (such as film). Typically, luminescent materials like YAG:Ce, LuAG:Ce, SrSi 2 O 2 N 2 :the Eu and CaAlSiN 3 :the Eu are very resistant materials, while (Y,Gd)AG:Ce (Ca, Sr)S:Eu and CaSrSi 5 N 8 :the Eu can show significant sensitivity to the effects. Preferably, sensitive to the luminous material is applied on both sides of a single transparent window 300 and thermally stable luminous material on both sides of another transparent window 300. Preferably, bypassing box 300, for example, with a steady yellow/green luminous material is set between one or more LED 10 and removes the window with sensitive to the effects of luminescent material (in particular, a number of red fluorescent materials, as well as some yellow/green fluorescent materials, known as sensitive). Thus the heat load on sensitive to the luminous material can be reduced more than by 4 times in comparison with devices, in which only one covering 400 of the luminescent material (which includes, in embodiment, a mixture of luminescent material to produce white light in combination with one or more blue LED 10) is applied to only one window 300.

Two variants of the invention on the basis of separation of luminescent materials on various films schematically on fig.3 and 3b. On fig.3 coverage of sensitive luminescent material, containing a first window 300(1), set between one or more LED 10 and other cover of the luminescent material, containing a second window 300(2). For example, when as the first, located closer relative to the direction of flow, the covering layer of the 422(1) luminescent material, and the first, is further regarding flow direction, covering layer of 421(1) luminescent material, deposited on the button located closer relative to the direction of flow of surface 301 and located farther relative to the direction of flow of the surface of 302, respectively, first transparent window 300(1), contain a red fluorescent material, and the second is located closer relative to the direction of flow, the covering layer of the 422(2) of luminescent material and the second, is further relative to the direction of flow, the covering layer of the 421(2) luminescent material, deposited on the button relatively closer direction of flow of surface 301 and located farther relative to the direction of flow of the surface of 302, respectively, of the second passing of the window 300(2), contain yellow and/or emitting green light luminous material, this can result in high CRI.

On fig.3b depicts the opposite configuration, in which the coating is essentially sensitive to the effects of luminescent material, containing a first window 300(1), set between one or more LED 10 and other coated with a phosphor material contains a second window 300(2), and the second window 300(2) is coated with sensitive to the effects of luminescent materials containing obscuring window. For example, when the first close relative to the direction of flow, the covering layer of the 422(1) of luminescent material, and the first one is further regarding flow direction, covering layer of 421(1) luminescent material, deposited on the button located closer relative to the direction of flow of surface 301 and located farther relative to the direction of flow of the surface of 302, respectively, first transparent window 300(1)contain yellow and/or green luminous material, and the second is located closer relative to the direction of flow, the covering layer of the 422(2) of luminescent material and the second, is further relative to the direction of flow, the covering layer of the 421(2) luminescent material, deposited on the button located closer relative to the direction of flow of surface 301 and located farther relative to the direction of flow of the surface of 302, respectively, of the second passing of the window 300(2), contain emitting red light luminous material, this may result in the lowest temperature for red luminescent material, but also can result in partially reduced CRI relative to the first variant of implementation (as is schematically presented in fig.3). Therefore, the fig.3 sensitive to red luminescent material containing obscuring window, set between one or more LED 10 and yellow and/or green) luminescent materials containing obscuring window that can result in high CRI. On fig.3b red luminescent material containing obscuring window, installed between the yellow and/or green) luminescent materials containing pass the window, and semi-output window, which may result in the lowest temperature for red luminescent material (but in some cases, can result in partially reduced CRI).

Fig.3 schematically depicts an implementation option that can be substantially the same as the options for implementation, schematically depicted on fig.3 or 3c. However, translucent output window 200 on fig.3, essentially, is convex. Note that in all schematically depicted options for implementing the fig.3-3c, allowing a window 300, are essentially flat, however, one or more of these bypasses the Windows of 300 can in the alternatives of implementation also be essentially raised.

Therefore, the options for implementing schematically depicted on fig.3, 3b and 3c, at least two layers 400(1), 400(2), ..., 400(k) luminescent material may contain essentially identical compositions luminescent material, but in another embodiment, they may contain essentially different formulations of luminescent material. In principle, all k layers of luminescent material may be different, but also all or a subset of the layers of luminescent material may be identical. Invention is not limited to specific choices of implementation, depicted on fig.3, 3b and 3c or other drawings.

Fig.4, 4b and 4c delineated similar options for implementation, as described in more detail above in this document regarding schematic drawings. Neighboring camera 90(1) and 90(2) are not included in the schematic drawings, but, of course, variants can be part of schematically depicted options for implementation. For example, an implementation option schematically depicted on fig.4 and 4c, may essentially be the same as the options for implementation and modifications, described relatively fig.2, 2b, 2c and 2d); and an implementation option schematically depicted on fig.4b, may essentially be the same as the options for implementation and modifications, described relatively fig.3, 3b and 3c. However, the lighting device is 100 accordance with the variants of implementation, schematically depicted in the fig.4, 4b and 4c, contains located closer relative to the direction of flow, covering the output window of the layer 222 luminescent material, printed on the button located closer relative to the direction of flow of the surface of 202 output window.

As mentioned above, such a close relative to the direction of flow, covering the output window of the layer 222 luminescent material can also be a layer of luminescent material from the group of k layers of luminescent material. Consequently, located closer relative to the direction of flow, covering the output window of the layer 222 luminescent material is also listed as a layer 400 luminescent material (fig.4 he is the third layer of 400(3) luminescent material, on fig.4b he is the fifth layer of 400(5) luminescent material, and on fig.4 again he is the third layer of 400(3) of luminescent material).

In particular embodiment located closer relative to the direction of flow, covering the output window of the layer 222 luminescent material contains sensitive to the luminous material. In particular, the close relative to the direction of flow, covering the output window of the layer 222 luminescent material contains the luminous material, made with the possibility of radiation of the red light (since some of red fluorescent materials for initiation of blue light is known as sensitive, such as sulfides, ...).

Therefore, these options for implementation may, for example, be used to apply sensitive luminescent material, such as red fluorescent materials, on a semi-transparent output window, 200 and for the application of sustainable yellow and/or green luminescent materials on both sides of one or more missing 300 Windows, which are established between one or more LED 10 and semi-exit window of 200. Thanks a much better heat emission into the environment in the output window, 200 together with the division of luminescent materials, sensitive to the luminous material may remain at temperatures slightly above room temperature. Because the red luminescent material can absorb blue, green and/or yellow light, the thickness of the layer can be very thin. This has the advantage that it is difficult to visible or invisible from outside, in the off state, and that less luminescent material should be used, resulting in a lower cost).

Fig.5, 5b, 5c and 5d delineated similar options for implementation, as described in more detail above in this document regarding schematic drawings. Neighboring camera 90(1) and 90(2) are not included in the schematic drawings, but, of course, variants can be part of schematically depicted options for implementation. For example, an implementation option shown in fig.5, 5b, 5c and 5d, may essentially be the same as the options for implementation and modifications, described relatively fig.2, 2b, 2c and 2d. Options for implementation, schematically depicted on fig.5-5d, contain only one obscuring window 300. Note, however, that in the versions of these options for implementation may also contain two or more bypasses the Windows of 300.

Lighting device 100 accordance with the variants of implementation, schematically depicted in the fig.5, 5b, 5c and 5d, optionally configured to essentially increase the surface area of one or more fluorescent materials, applying the luminous material in reflecting the state, in particular, applying the luminous material in overlooking and reflecting the state. This can be useful, particularly for sensitive luminescent materials, such as some red fluorescent materials or some yellow/green fluorescent materials (see above). For example, red luminescent material can be used in the reflecting condition, for example, the lower and/or side reflectors LED-camera 80.

The schematic drawings 5a and 5b of the luminescent material contained in the first and second layers of 400(1) and 400(2) luminescent material, accordingly, may differ from the luminescent material contained in the third layer 400(3) of luminescent material. For example, the first and second layers 400(1) and 400(2) of luminescent material may contain radiant yellow and/or green light fluorescent materials, and the third layer 400(3) of luminescent material may contain sensitive to the luminous material. Thus, the red luminous material is applied on a larger surface area compared with a surface area of yellow and/or green luminescent material.

For schematic of options for the implementation of the drawings, 5c and 5d reference, in particular, made on the description given above concerning fig.2b (and 2c). In addition, the options for implementing schematically depicted on fig.5 and 5d, luminescent material for reflecting the state, i.e., the layer 500 luminescent material, is applied to the substrate 110, more specifically, reflectors 114 (fig.5 and 5d) (but may of course also or alternatively be used on the walls of 120 LED-camera 80).

The schematic drawings 5c and 5d luminescent material contained in the first and second layers of 400(1) and 400(2) luminescent material, respectively, may be different. For example, the first layer 400(1) of luminescent material may contain radiant yellow and/or green light fluorescent materials, and the second layer 400(2) of luminescent material may contain red luminescent material, and Vice versa.

Therefore, the invention also provides options of the lighting unit 100, additionally contains the layer 500 luminescent material, made with the possibility of formation of radiation in the reflective state. "Showing the condition of" in this context refers to such placements layers 500 luminescent material, that these layers, essentially, the only emit in the direction from the side of the cover layer, where a layer of luminescent material highlights (LED)light. This, in particular, contrary to the layers 400 luminescent material, which, in particular, implemented with the possibility of radiation, at least, in the direction from the side of the cover layer facing the side, where a layer of luminescent material covered (LED)light. Additionally, layers 400 luminescent material, in particular, met with the opportunity to transfer at least part of the LED radiation 11, whereas for the layers 500 luminescent material, as a rule, is not required transmission is possible at least part of the LED radiation 11.

Fig.6 and 6b delineated implementation options, which apply the dichroic filters. The term "dichroic filter known specialist in a given field of technology and referring in particular to the optical filters, allowing the light of a particular color (at least partially) be transferred, while the light a different color, essentially, is not transmitted, and (at least partially) are recorded. The drawings dichroic filter specified reference 600. Note that may apply more than one dichroic filter 600.

Fig.6 is essentially the same as fig.5, although the application of dichroic filters 600 is not limited to specific embodiment, schematically depicted in the fig.6. Fig.6b is essentially the same as fig.4b, although the application of dichroic filters 600 is not limited to specific embodiment, schematically depicted in the fig.6b. Dichroic filter 600 is located closer relative to the direction of flow of surface 602 and located farther relative to the direction of flow of the surface of 601.

One or more dichroic filters 600, thus, in particular, posted after the LED 10 and to translucent output window 200. In addition, such a filter(s), in particular, a(s) with the opportunity to transfer at least part of the world to one or more dichroic filters 600 and reflection, at least, part of the world after one or more dichroic filters 600. Turning to fig.6, LED-light 11 may at least partially be passed, while the glow 30 luminescent material can, at least partially reflected. Also, addressing the fig.6b, at least, part of the world to a dichroic filter 600, i.e., the light in the cell 81(1), may be transferred, and at least part of the world, formed by the layers of 422(2) and 421(2) luminescent material, can be reflected.

Therefore, in a particular embodiment, the radiation from the layer 400(1) can be transmitted (as, for example, the blue light 11) through the dichroic filter 600, while the radiation from the layer 400(2) can be reflected dichroic filter 600. Similarly, it can be applied to other dichroic filters, placed somewhere else in the lighting device 100.

In additional alternative options for implementing dichroic filter is applied between greenish yellow and red-orange fluorescent materials to reflect the yellow-green light at the same time permitting the transmission of both blue and red-orange light.

For example, dichroic filter 600 can be placed between the layers of red luminescent material and layers with green luminous material, to eliminate mutual influence of luminescent material. Filter reflects the green light, but is transparent to blue and red light. Turning to fig.6b covering layers 422(1) and 421(1) of luminescent material may contain red luminescent material, and one or more LED 10 can be implemented with the possibility of blue light and covering layers 422(2) and 421(2) of luminescent material may contain red and green fluorescent layers, respectively.

In additional alternative options for implementing dichroic filter is applied between the layer of red-orange luminescent material and one or more blue LED, to transmit only the blue light and reflect red-orange or red-orange, and yellow-green light. Therefore, this filter can simply be low pass filter in the wavelength region. This filter can improve the overall efficiency of the system, in particular, in configurations where the density of the LED modules are relatively high. This, in particular, the case of applications of radiation type of illumination.

According to the specific options for carrying out the invention lighting device 100 can contain one or more layers(400(1), 400(2), ..., 400(k)) luminescent material, from which one or more of the overlying strata are independent structured layers.

As the structured use of emitting red or orange light luminescent material or both layers of luminescent material can be accomplished. Due to the small common square surface of the red/orange luminescent material interaction with light emitted from yellow-green luminescent material, may be very limited.

Alternatively, fluorescent materials, and a mixture of fluorescent materials are applied in a structured manner on the same side of the film, for example, in the form of a block template, with a typical size between 0.2 and 5 mm, or as a point template with the typical width of between 0.2 and 5 mm For thermo-mechanical stability of the covering layer without particles luminescent material, but perhaps with scattering particles is applied on the other side. This approach can also lead to reduced mutual influence of luminescent material.

Examples are depicted on fig.7 and 7b. Fig.7 is essentially the same as fig.2, although the use of structured layers is not limited to specific embodiment, schematically depicted in the fig.7. Fig.7b is essentially the same as fig.4b, although the use of structured layers 600 is not limited to specific embodiment, schematically depicted in the fig.7b. On fig.7 an example, in which only one of the layers of 400 luminescent material, in particular, one of the overlying strata of luminescent material, is structured. This layer is specified reference 450(1). On fig.7b two layers 400 luminescent material is structured: this is schematically depicted embodiment first close relative to the direction of flow, the covering layer of the 422(1) of luminescent material and the first one is further relative to the direction of flow, the covering layer of the 421(1) of luminescent material. Structured layers are links 450(1) and 450(2), respectively.

In another additional version of the implementation, schematically shown in Fig.8, one or more Windows, selected from the group consisting of translucent output window 200 and one or more of n bypasses the Windows 300(1), 300(2), ..., 300(n)contain independently of one or more layers(400(1), 400(2), ..., 400(k)) luminescent material as translucent luminescent output window 270 and passing fluorescent Windows 370, respectively.

In a number of implementation options, schematically depicted earlier in this document, obscuring window 300 and an output window 200 images of both round and essentially flat. In particular, if it is assumed that contain the window 300 essentially flat, obscuring window 300 may be, essentially, round, but in another embodiment, it can also be square or may have different forms, famous specialist in a given field of technology. In particular, if it is assumed that the output window of the 200 essentially flat, the output window 200 can be round or, in another embodiment, a square, or it can be another form known specialist in a given field of technology.

In a number of implementation options, schematically depicted earlier in this document, obscuring window 300 and an output window 200 images of both round and, essentially, convex. In particular, if it is assumed that lets box 300, essentially, convex, obscuring window 300 may be, essentially, rotationally symmetric but in another embodiment, it can also be a cylindrical or toroidal or may have different forms, famous specialist in a given field of technology. In particular, if it is assumed that the output window of the 200, essentially, convex, the output window 200 can be essentially rotationally symmetric or, in another embodiment, cylindrical or toroidal, or it can be another form known specialist in a given field of technology.

The term "substance"used in this document, as, for example, in the expression "essentially, all radiation" or the expression "consists essentially", will be understood by a person skilled in the art. The term "essentially" may also include options for implementation with the phrase "fully", "whole", "all", etc. Therefore, the options for implementing the definition of "substantively" may also be removed. Where applicable, the term "essentially" can also refer to 90% or higher, like, for example, 95% or above, in particular, 99% or higher, even more specifically, 99.5% or higher, including 100%. The term "contains" also includes options for implementation, in which the term "contains" means "consists of". The device referred to in this document, among others, are described in the work. For example, the term "blue LED" refers to the LED during his work forms a blue light; in other words: the LED is configured to emit blue light. As will be clear to a person skilled in the technical field of the invention is not limited ways of work or devices in the work.

Note that the above options for implementation illustrate, and do not limit the invention, and experts in the field of technology should have the ability to design a set of alternative options for implementing without derogating from the field of application of the accompanying claims. Claims of all reference numbers placed in parentheses, should not be construed as limiting the claims. The use of the verb "match" and his not exclude the presence of elements or phases, other than those specified in the claims. Article "a" or "an" before the element does not exclude the presence of many such items. In the device of the equation that lists a few tools, some of these tools can be implemented the same item of hardware. The mere fact that certain measures mentioned in various dependent claims, does not mean that the combination of these measures can not be used profitably.

1. Lighting installation (100), containing: a. many light-emitting diodes (10) (LED), made with the possibility of emission LED radiation (11); b. translucent output window (200), having located closer relative to the direction of flow of the surface (202) output window and the button further on the direction of the flow of surface (201) output window; c. n transmits light boxes(300(1), 300(2), ..., 300(n)), placed after many LED (10) and to translucent output window (200), while n is equal to or greater than 1, each obscuring window (300) is located closer relative to the direction of flow of the surface (302) impervious to the window and the button further on the direction of the flow of surface (301) transparent window; d. k layers (400(1), 400(2), ..., 400(k)) luminescent material, where k is equal to or greater than 2 k layers(400(1), 400(2), ..., 400(k)) luminescent material placed after many LED (10) and to translucent output window (200), and k layers(400(1), 400(2), ..., 400(k)) luminescent material spatially separated from the many LED (10); and many of the LED (10) and layers(400(1), 400(2), ..., 400(k)) luminescent material implemented with the possibility of the formation of light (50) a predefined color, and the translucent output window (200) executed with the possibility of the transfer of at least part of the world (50).

2. Lighting installation (100) according to claim 1, containing a first pass the window (300(1)), which is located closer relative to the direction of flow of the surface (302) transparent window contains the first, located closer relative to the direction of flow, the covering layer (422(1)) luminescent material and farther away relative to the direction of flow of the surface (301) transparent window contains the first, is further relative to the direction of flow, the covering layer (421(1)) luminescent material.

3. Lighting installation (100) in paragraph 2, additionally contains the second obscuring window (300(2)), which is located closer relative to the direction of flow of the surface (302) transparent window contains the second, located closer relative to the direction of flow, the covering layer (422(2)) luminescent material and farther away relative to the direction of flow of the surface (301) transparent window contains the second, is further relative to the direction of flow, the covering layer (421(2)) luminescent material.

4. Lighting installation (100) for any of the preceding items, where located closer relative to the direction of flow of the surface (202) output window translucent output window (200) contains located to the output window covering layer (222) luminescent material.

5. Lighting installation (100) according to claim 4, which located to the output window covering layer (222) luminescent material contains the luminous material, made with the possibility of radiation of the red light.

6. Lighting installation (100) on any one of claims 1 to 3, where k is in the range from 2 to 5 and n is in the range from 1 to 2.

7. Lighting installation (100) on any one of claims 1 to 3, in which at least two layers(400(1), 400(2), ..., 400(k)) luminescent material contain essentially identical compositions luminescent material.

8. Lighting installation (100) on any one of claims 1 to 3, in which at least two layers(400(1), 400(2), ..., 400(k)) luminescent material contain essentially different formulations of luminescent material.

9. Lighting installation (100) on any one of claims 1 to 3, where the first layer (400(1)) luminescent material is made with the possibility of formation of a light color, and the second layer (400(2)) luminescent material is made with the possibility of formation of the second light colours and light of the first color has a wavelength dominant radiation greater than the light of the second color, and the first layer (400(1)) luminescent material is the closest relative to the direction of the stream than the second layer (400(2)) luminescent material.

10. Lighting installation (100) p.9, where the first layer (400(1)) luminescent material contains the luminous material, made with the possibility of radiation of the red light.

11. Lighting installation (100) on any one of claims 1 to 3, additionally contains a sensor (70), in particular, the optical sensor (70), in which the sensor (70) is made with the ability to receive, in essence, only Ohr Hozer.

12. Lighting installation (100) on any one of claims 1 to 3, optionally containing layer (500) luminescent material, made with the possibility of formation of radiation in the reflective state.

13. Lighting installation (100) on any one of claims 1 to 3, in which one or more layers(400(1), 400(2), ..., 400(k)) luminescent material contain structured covering layers(450(1), 450(2), ..., 450(k)).

14. Lighting installation (100) on any one of claims 1 to 3, in which one or more Windows, selected from the group consisting of translucent output window (200) and one or more of n bypasses the Windows(300(1), 300(2), ..., 300(n)), contain independently of one or more layers(400(1), 400(2), ..., 400(k)) luminescent material as translucent luminescent output window (270) and bypasses the fluorescent screens (370).

15. Lighting installation (100) on any one of claims 1 to 3, additionally contains one or more dichroic filters (600)placed after the LED (10) and to translucent output window (200) and implemented with the possibility to transfer at least part of the world to one or more dichroic filters (600) and reflect, at least, part of the world after one or more dichroic filters (600).