CN1624578A - Three-colour luminous diode multi light source lighting device - Google Patents
Three-colour luminous diode multi light source lighting device Download PDFInfo
- Publication number
- CN1624578A CN1624578A CN 200410093136 CN200410093136A CN1624578A CN 1624578 A CN1624578 A CN 1624578A CN 200410093136 CN200410093136 CN 200410093136 CN 200410093136 A CN200410093136 A CN 200410093136A CN 1624578 A CN1624578 A CN 1624578A
- Authority
- CN
- China
- Prior art keywords
- light
- mixing cartridge
- emitting diode
- light emitting
- led
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Landscapes
- Projection Apparatus (AREA)
Abstract
A three-colored light emitting diode multi-light source, lighting device used in digital display system, LED substrate , collimating support, mixed light tube and fosted glass, micro display panel, zooming projection lens and photographic paper are orderly installed on the same optical axial, is fixed on LED substrate in square matrix and has the same distance to each other, square matrix lens is embed in the collimating support under the LED substrate in square matrix and each light emitting diode has the corresponding axial of square matrix lens on its focus to reduce the angle of divergence, decreasing the optical energy loss. The light beam projection port of mixed light tube has frosted glass embedded with the angle of 45deg.C for increasing evenness of optical fiel, and there is a zooming projection lens placed among the micro display panel and photographic paper. The advantages are long service life and colorful vivdness.
Description
Technical field
The present invention relates to a kind of three-colour luminous diode multi light source lighting device, it is a kind of multi-light-source illumination system that adopts many group red, green, blue Tricolor LEDs (LED) to form, be used to the digital exposure system of digital imaging system that illumination is provided, mainly comprise based on the digital exposure of LCD (liquid crystal), LCOS (liquid crystal on silicon), DLP little display panels such as (Digital Light Processors), belong to LED illumination optical technical field.
Technical background
Present domestic digital imaging mainly is based on the digital exposure system of liquid crystal, and this technology light source adopts the very high gas-discharge lamp of luminous power.Mainly be based on laser scanning, fluorescent tube technology, low-light valve technology and digital light control technology abroad.
In the laser digital imaging system, blue and green laser is produced by gas or Solid State Laser generator, red laser is produced by laser diode, R, G, B three look laser synthesize the single beam laser bundle through optical system, reflection through the polygon prism surface of a rotation, laser beam is inswept on printing paper equably, and moving of printing paper changed scan line position again, comprehensive result has been exactly laser beam flying each point of printing paper imaging region.The variation of laser beam intensity has determined the shade of scanned point.Intensity of laser beam can also can directly be controlled the luminous intensity of laser tube by convertor controls.
The critical component of low-light valve exposure technique is a ceramic electrode by the compound that contains metals such as lead, lanthanum, zirconium, titanium, and this electrode looks it is transparent, applies after the voltage, and it can change the polarization direction by its light.Electrode holder is between two-layer polariscope, two-layer polariscopic polarization direction is also inconsistent, when the electrode two ends did not have voltage, light had wilfully passed through galvanometer and has become polarized light, because the polarization direction is inconsistent, can not be without the polarized light that reverses by filtering polariscope, be equivalent to valve closing, after the electrode two ends applied certain voltage, the polarization direction of polarized light was reversed, can pass through filter, be equivalent to valve open.A large amount of low-light valves are lined up the strip array, and its photohead relies on Halogen lamp LED that light source is provided, and light arrives photohead through fiber optic transmission.
The ultimate principle of fluorescent tube exposure technique is the same with the display display image, all be to make it luminescence imaging by the electron bombard fluorescent material, only display is the fluorescent material direct imaging on the video screen, and the fluorescent tube exposure is the luminous printing paper photosensitive imaging that makes of fluorescent material, and the process of electron beam scanning also is not quite similar certainly.In this technology, fluorescent material is easy to wear out, and the life-span is shorter.
Digital light processor is a kind of patent image technique of TIX (TI) for digital projection and digital cinema exploitation originally, be to be that core component is controlled light reflection, image projection be imaged onto a kind of shadow casting technique of screen with DMD (digital micromirror device).In the digital imaging field, Ai Kefa is used in printed indicia photo among the Dimax with it, is the QSS-2802 of Nuo Rishi with its enlargement of color photos equipment as image-generating unit really, belongs to the light valve gate-type.Dmd chip is the core of Digital Light Processor, and a dmd chip is made up of the DMD unit of One's name is legion, and each unit is corresponding to a pixel of digital picture.Under the control of digital signal, miniature eyeglass can reverse with the frequency of per second 5000 times.
In the above-mentioned digital imaging system, light source roughly is divided into: LASER Light Source and gas-discharge lamp or halogen tungsten lamp, and LASER Light Source involves great expense, and optical system is complicated, is difficult to control; And the common feature of gas-discharge lamp and halogen tungsten lamp is to have very high luminous energy output, can satisfy the requirement of digital imaging well to luminous flux, but digital imaging adopts this light source to have many shortcomings, mainly contain: (1) light source have very big heating and the heating very concentrated, must solve heat dissipation problem well; (2) life-span of light source very short, have only hundreds of to arrive several thousand hours usually; (3) price of light source is very expensive; (4) the normally white light that sends of light source, in order to handle colour signal, optical projection system must have colour esensitized equipment, and white light is decomposed into red, green, blue three primary colours light, and three primary colours light adds picture signal, and then synthesizes coloured image with closing the look device through handling; (5) white light that light source sent does not satisfy the requirement of colour balance on spectral distribution, in order to satisfy the requirement of colour balance, usually adopt the way that suppresses than rich shade light, so just caused the decline of utilization ratio of optical energy, between energy of light source utilization factor and colour balance, have contradiction; (6) in traditional digital imaging system, white light adopts colour esensitized equipment to be decomposed into three primary colours light, in order to improve capacity usage ratio, the red, green, blue three primary colours will be used big as far as possible spectrum channel usually, but spectrum channel is big more, then color is not bright-coloured more, has contradiction in capacity usage ratio and requirement bright in luster; (7) for above-mentioned reasons, the complexity of digital imaging structure and the reduction of reliability have also been caused.
Light emitting diode has advantages such as luminescence efficiency height, heating is low, glow color is pure, and its disadvantage is that luminous power is too low, is difficult to satisfy the requirement of digital imaging to luminous power.Recently, aspect large-power light-emitting diodes, made significant headway, use a plurality of light emitting diode combined can satisfy the requirement of digital imaging to brightness as lighting source, wherein the technical problem underlying that will solve is: how (1) solves the uniformity coefficient of the light that a plurality of light emitting diodes send, to satisfy the requirement of digital imaging to even luminosity; (2) how to improve the utilization factor of luminous energy; (3) how to solve the requirement to polarized light of liquid crystal or liquid crystal on silicon, Digital Light Processor then need not to consider.
Summary of the invention
The objective of the invention is at the deficiencies in the prior art, a kind of three-colour luminous diode multi light source lighting device that is used for digital imaging is provided, simple in structure, can realize good degree bright in luster, and require low to the heat radiation of system, do not need to use colour esensitized equipment, do not need the sacrificial light energy to realize colour balance.
For realizing such purpose, the present invention is fixed in red, green, blue Tricolor LED on the LED substrate, one group by one group and is fixed in collimating mirror on the alignment jig, light mixing cartridge and frosted glass and constitutes illuminator.The light that light source led sends compresses its beam divergence angle by collimating mirror, and harmless then lost territory enters light mixing cartridge, shines equably on little display panel of modulated image behind light mixing cartridge and the even light of frosted glass.Realize colour balance by the time shutter of adjusting three coloured light.Little display panel of the present invention can be liquid crystal, liquid crystal on silicon or Digital Light Processor, and wherein Digital Light Processor mainly is digital micro-mirror DMD (DigitalMicro-reflector Device).
In the three-colour luminous diode multi light source lighting device of the present invention, LED substrate, alignment jig, light mixing cartridge, frosted glass, little display panel, Zooming-projection camera lens and printing paper are successively set on the same optical axis, the light mixing cartridge shell is embedded in the outside surface of light mixing cartridge, is used for fixing light mixing cartridge and guarantees the coaxial relation of above each several part.Press close to the LED substrate below alignment jig is set, and the lower surface of alignment jig is a square groove, just is embedded into the light entrance place of light mixing cartridge, has guaranteed the luminous energy free of losses; The lower surface of light mixing cartridge, promptly the exit of light and frosted glass join, and frosted glass is embedded in the beam projecting mouth place of light mixing cartridge with miter angle, and both have guaranteed to shine the light uniformity coefficient on little display panel; For being used for little display panel of modulation image, both distances are very near below the frosted glass, in order to avoid the entering of optical energy loss and other veiling glare; Place a Zooming-projection camera lens between little display panel and the printing paper, its focal length is directly controlled with computer, is used to regulate the exit facet of little display panel light and paper size is corresponding one by one mutually.
Among the present invention, Tricolor LED is put and is embedded in one and constitutes the LED substrate above the substrate according to box formation, and the distance between each LED equates that all wherein putting of three-color LED in proper order can be different.Collimating mirror is embedded in the alignment jig with the form of square formation, and each LED is corresponding with a collimating mirror separately and coaxial, and each LED is positioned on the focus of its corresponding collimating mirror, to dwindle the angle of divergence of light, reduces optical energy loss.The light that LED sends directly enters light mixing cartridge (luminous energy is without any loss) through collimating mirror, behind light mixing cartridge and the even light of frosted glass, shine equably on the modulated little display panel that makes image, project on the printing paper, on printing paper, expose at last through Zooming-projection camera lens.
Collimating mirror is used to collect the light that LED sends and dwindles its beam divergence angle, uses lens or catoptron as collimating mirror usually.When using lens, collimating mirror is between LED and light mixing cartridge, and the light that LED sends is injected light mixing cartridge behind lens; When using catoptron as collimating mirror, collimating mirror is positioned at the LED end, the less part of the optic angle degree that LED sends is directly injected light mixing cartridge, the part light that angle is bigger is injected light mixing cartridge again after mirror reflects, be mapped to little display panel of modulated image through the illumination of frosted glass outgoing, project on the printing paper through Zooming-projection camera lens.
Usually, single group LED is difficult to satisfy the requirement of digital imaging to luminous flux, need many group LED to work simultaneously, but the present invention does not repel the single group of use LED, in fact, under the situation that can satisfy the luminous flux requirement, should consider the possibility of using less LED even using single group LED as far as possible.When using a plurality of lighting unit, each lighting unit is placed side by side regularly on a substrate, adds a light mixing cartridge and frosted glass and constitutes multi-light-source illumination system of the present invention.
Adopt digital imaging of the present invention system will produce following many effects:
1, the present invention adopts LED as light source, and LED is a kind of cold light source, and single led heating is more much lower than charging sources such as high-pressure sodium lamp commonly used, xenon lamps, and heating relatively disperses when adopting a plurality of LED to work, thereby lower to the technical requirement of system radiating;
2, LED has the very long life-span, can guarantee the machine life of digital imaging system, no longer needs to change light source;
3, can in the digital imaging system, use the LED of red, green, blue three primary colours, thereby not need to use complicated colour esensitized equipment;
4, adopting LED is in the digital imaging system of lighting source, and the realization of colour balance can have two kinds of ways: a kind of is to adopt the three-primary color LED of varying number to realize colour balance; Another kind is to realize colour balance by the time shutter of control three-primary color LED, thereby can not need the sacrificial light energy to realize colour balance;
5, the luminous bandwidth of LED is less, can improve the degree bright in luster of image better.
Description of drawings
Fig. 1 is a three-colour luminous diode multi light source lighting device structural representation of the present invention.
Among Fig. 1,1 is the LED substrate, and 2 is alignment jig, and 3 is the light mixing cartridge shell, and 4 is light mixing cartridge, and 5 is little display panel, and 6 is Zooming-projection camera lens, and 7 is printing paper, and 14 is whole illuminator.
Fig. 2 is LED lighting unit structure synoptic diagram among the present invention.
Among Fig. 2,1 is the LED substrate, and 2 is alignment jig, and 8 is LED, and 9 is collimating mirror.
Fig. 3 is the light mixing cartridge among the present invention.
Among Fig. 3,4 is light mixing cartridge, and 13 is frosted glass plate.
Fig. 4 is a kind of arrangement and the distribution mode of three-color LED.
Fig. 5 is that the another kind of three-color LED is arranged and distribution mode.
Embodiment
Below in conjunction with accompanying drawing technical scheme of the present invention is further described.
Shown in Figure 1 is the structure composition signal of an embodiment of three-color LED multiple source lighting fixture of the present invention.Be illuminator 14 of the present invention in the dotted line scope among the figure, constitute by LED substrate 1, alignment jig 2, light mixing cartridge shell 3, light mixing cartridge 4 and the frosted glass that is embedded in beam projecting mouth place, light mixing cartridge bottom surface.Wherein LED substrate 1, alignment jig 2, light mixing cartridge 4, frosted glass, little display panel 5, Zooming-projection camera lens 6 and printing paper 7 are successively set on the same optical axis, light mixing cartridge shell 3 is embedded in the outside surface of light mixing cartridge 4, is used for fixing light mixing cartridge and guarantees the coaxial relation of above each several part.Alignment jig 2 press close to be arranged at LED substrate 1 below, the lower surface of alignment jig 2 is a square groove, just is embedded into the light entrance place of light mixing cartridge 4, has guaranteed the luminous energy free of losses.The lower surface of light mixing cartridge 4, promptly the exit of light and frosted glass join, as shown in Figure 3.Frosted glass 13 is embedded in the beam projecting mouth place of light mixing cartridge 4 with miter angle, and both have guaranteed to shine the light uniformity coefficient on little display panel 5.For being used for little display panel 5 of modulation image, frosted glass 13 is very near with little display panel 5 both distances below the frosted glass 13, in order to avoid the entering of optical energy loss and other veiling glare.Place a Zooming-projection camera lens 6 between little display panel 5 and the printing paper 7, its focal length is directly controlled with computer, and the exit facet that is used to regulate little display panel 5 light is corresponding one by one with printing paper 7 sizes.
Fig. 2 is led lighting cellular construction synoptic diagram among the present invention.As shown in Figure 2.According to certain rules fixed placement Tricolor LED 8, light emitting diode 8 is put with square formation, and the distance between each light emitting diode all equates on the LED substrate 1.Alignment jig 2 press close to be arranged at LED substrate 1 below, collimating mirror 9 is embedded in the alignment jig 2 with the form of square formation, each light emitting diode 8 is corresponding and coaxial with a collimating mirror 9 separately, and each light emitting diode 8 is positioned on the focus of its corresponding collimating mirror 9, to dwindle the angle of divergence of light, reduce optical energy loss.
Fig. 4 and Fig. 5 have provided two kinds of distribution rules of light emitting diode 8 respectively, all put with square formation, and the distance between each light emitting diode all equate.The middle row or middle one that the light emitting diode 8 that can get any one color is placed in square formation lists (as shown in Figure 4), or be placed on the diagonal line of square formation (as shown in Figure 5), the light emitting diode 8 of other two kinds of colors respectively is placed on the dot matrix that parallels with first kind of color LEDs placing direction.
The light that light emitting diode 8 sends directly enters light mixing cartridge 4 (luminous energy is without any loss) through collimating mirror 9, behind light mixing cartridge 4 and frosted glass 13 even light, shine equably on the modulated little display panel 5 that makes image, project on the printing paper 7, exposure on printing paper 7 at last through Zooming-projection camera lens 6.
The present invention intends adopting by the synthetic standard white light source D65 of red, green, blue three coloured light.Can find the chromaticity coordinates of standard white light source D65 according to chromaticity diagram, and then can obtain the tristimulus values (promptly constituting the energy of the three primary colours light of this light source) of this light source, provide by (2) formula.The gross energy that printing paper receives is provided by (1) formula.Promptly can obtain the energy ratio of three primary light source,, and then can obtain the time shutter ratio of three coloured light because the luminous power of employed red, green, blue tri coloured lantern is known.
E
T＝E
R+E
G+E
B＝I
R×S×T
R+I
G×S×T
G+I
B×S×T
B (1)
(1) S is an irradiated area in the formula, i.e. printing paper 7 areas; I
R, I
G, I
BBe respectively the illumination of red, green, blue three coloured light on 7 in printing paper; T
R, R
G, T
BBe respectively the time shutter of red, green, blue three coloured light on phase paper 7; E
TThe gross energy that is received for printing paper 7; E
R, E
G, E
BBe respectively the gross energy of red, green, blue three coloured light that printing paper 7 received.(2) x in the formula
10, y
10, z
10Be the chromaticity coordinates of standard white light source D65, X
10, Y
10, Z
10Tristimulus values for red, green, blue three coloured light of synthetic standards white light source D65.
Because the adjusting of white balance is comparatively complicated, the spectral sensitivity characteristic of adding printing paper 7 has nothing in common with each other again (because different printing paper has different spectral sensitivity characteristics), and it is simple regulating white balance according to the time shutter of red, green, blue three coloured light thus.The time shutter of tri coloured lantern can be regulated total time shutter than known, to reach the white balance at printing paper 7 places.
Claims (5)
1, a kind of three-colour luminous diode multi light source lighting device, it is characterized in that LED substrate (1), alignment jig (2), light mixing cartridge (4), frosted glass (13), little display panel (5), Zooming-projection camera lens (6) and printing paper (7) are successively set on the same optical axis, light mixing cartridge shell (3) is embedded in the outside surface of light mixing cartridge (4), is used for fixing light mixing cartridge (4) and guarantees the coaxial relation of above each several part; LED substrate (1) is gone up fixed placement Tricolor LED (8), light emitting diode (8) is put with square formation, and the distance between each diode all equates, alignment jig (2) press close to be arranged at LED substrate (1) below, collimating mirror (9) is embedded in the alignment jig (2) with the form of square formation, each light emitting diode (8) is corresponding with a collimating mirror (9) separately and coaxial, and each light emitting diode (8) is positioned on the focus of its corresponding collimating mirror (9); The lower surface of alignment jig (2) is a square groove, just be embedded into the light entrance place of light mixing cartridge (4), frosted glass (13) is embedded in the beam projecting mouth place of light mixing cartridge (4) with miter angle, it below the frosted glass (13) the little display panel (5) that is used for modulation image, place a Zooming-projection camera lens (6) between little display panel (5) and the printing paper (7), its focal length is directly controlled with computer, and the exit facet that is used to regulate little display panel (5) light is corresponding one by one with printing paper (7) size.
2, according to the three-colour luminous diode multi light source lighting device of claim 1, it is characterized in that box formation that described light emitting diode (8) is put is to get the middle row or middle that the light emitting diode of any one color (8) is placed in square formation to list, or be placed on the diagonal line of square formation, the light emitting diode of other two kinds of colors (8) respectively is placed on the dot matrix that parallels with first kind of color LEDs placing direction.
3,, it is characterized in that the time shutter realization colour balance that adopts the Tricolor LED of varying number or pass through the control Tricolor LED according to the three-colour luminous diode multi light source lighting device of claim 1.
4, according to the three-colour luminous diode multi light source lighting device of claim 1, it is characterized in that described collimating mirror (9) is lens, be positioned between Tricolor LED (8) and the light mixing cartridge (4), the light that light emitting diode sends is injected light mixing cartridge (4) behind lens.
5, according to the three-colour luminous diode multi light source lighting device of claim 1, it is characterized in that described collimating mirror (9) is a catoptron, be positioned at Tricolor LED (8) end, the less part of the optic angle degree that light emitting diode sends is directly injected light mixing cartridge (4), and the part light that angle is bigger is injected light mixing cartridge (4) again after mirror reflects.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100931368A CN100347607C (en) | 2004-12-16 | 2004-12-16 | Three-colour luminous diode multi light source lighting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100931368A CN100347607C (en) | 2004-12-16 | 2004-12-16 | Three-colour luminous diode multi light source lighting device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1624578A true CN1624578A (en) | 2005-06-08 |
| CN100347607C CN100347607C (en) | 2007-11-07 |
Family
ID=34766373
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100931368A Expired - Fee Related CN100347607C (en) | 2004-12-16 | 2004-12-16 | Three-colour luminous diode multi light source lighting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100347607C (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8122606B2 (en) | 2007-09-17 | 2012-02-28 | The Gillette Company | Cartridge life indicator |
| CN102537699A (en) * | 2010-12-27 | 2012-07-04 | 常熟卓辉光电科技有限公司 | LED (Light-Emitting Diode) illumination system capable of generating area light source |
| CN104169645A (en) * | 2011-12-30 | 2014-11-26 | 福雷恩集团有限公司 | Light mixing lenses and systems |
| CN106353319A (en) * | 2016-08-30 | 2017-01-25 | 常州正易晟网络科技有限公司 | Device and method for automatically analyzing texture and process of sewing thread based on video recognition |
| CN106570469A (en) * | 2016-11-01 | 2017-04-19 | 北京无线电计量测试研究所 | Self-service type binocular iris registration method and iris registration device based on method |
| US10254474B2 (en) | 2011-12-30 | 2019-04-09 | Fraen Corporation | Light mixing systems with a glass light pipe |
| US10585292B2 (en) | 2018-06-28 | 2020-03-10 | Fraen Corporation | Low-profile color-mixing lightpipe |
| US10663652B2 (en) | 2011-12-30 | 2020-05-26 | Fraen Corporation | Light mixing systems with a glass light pipe |
| CN112014069A (en) * | 2019-05-28 | 2020-12-01 | 杭州远方光电信息股份有限公司 | Imaging measuring device |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000138796A (en) * | 1998-11-04 | 2000-05-16 | Canon Inc | Document illuminating device |
| CN2629067Y (en) * | 2003-05-30 | 2004-07-28 | 贡晔 | Photo enlarging & printing apparatus based on planar array colour LED ligh source |
-
2004
- 2004-12-16 CN CNB2004100931368A patent/CN100347607C/en not_active Expired - Fee Related
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8122606B2 (en) | 2007-09-17 | 2012-02-28 | The Gillette Company | Cartridge life indicator |
| CN102537699A (en) * | 2010-12-27 | 2012-07-04 | 常熟卓辉光电科技有限公司 | LED (Light-Emitting Diode) illumination system capable of generating area light source |
| US10663652B2 (en) | 2011-12-30 | 2020-05-26 | Fraen Corporation | Light mixing systems with a glass light pipe |
| US9772499B2 (en) | 2011-12-30 | 2017-09-26 | Fraen Corporation | Light mixing lenses and systems |
| US10254474B2 (en) | 2011-12-30 | 2019-04-09 | Fraen Corporation | Light mixing systems with a glass light pipe |
| US10663651B2 (en) | 2011-12-30 | 2020-05-26 | Fraen Corporation | Light mixing systems with a glass light pipe |
| CN104169645A (en) * | 2011-12-30 | 2014-11-26 | 福雷恩集团有限公司 | Light mixing lenses and systems |
| CN106353319A (en) * | 2016-08-30 | 2017-01-25 | 常州正易晟网络科技有限公司 | Device and method for automatically analyzing texture and process of sewing thread based on video recognition |
| CN106570469A (en) * | 2016-11-01 | 2017-04-19 | 北京无线电计量测试研究所 | Self-service type binocular iris registration method and iris registration device based on method |
| US10585292B2 (en) | 2018-06-28 | 2020-03-10 | Fraen Corporation | Low-profile color-mixing lightpipe |
| US11156847B2 (en) | 2018-06-28 | 2021-10-26 | Fraen Corporation | Low-profile color-mixing lightpipe |
| US11899219B2 (en) | 2018-06-28 | 2024-02-13 | Fraen Corporation | Low-profile color-mixing lightpipe |
| CN112014069A (en) * | 2019-05-28 | 2020-12-01 | 杭州远方光电信息股份有限公司 | Imaging measuring device |
| CN112014069B (en) * | 2019-05-28 | 2023-04-14 | 杭州远方光电信息股份有限公司 | Imaging measuring device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100347607C (en) | 2007-11-07 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101361022B (en) | Polarized, multicolor led-based illumination source | |
| US7210815B2 (en) | Optical device, illumination apparatus, and color illumination apparatus | |
| JP5495791B2 (en) | Lighting device and method including color selection panel for recycling unwanted light | |
| CN106523955B (en) | Lighting system and projection arrangement | |
| US20090128781A1 (en) | LED multiplexer and recycler and micro-projector incorporating the Same | |
| US7461950B2 (en) | Field sequential lighting device and image projecting device | |
| WO2009091610A1 (en) | Light multiplexer and recycler, and micro-projector incorporating the same | |
| US20070165186A1 (en) | Light source system and an image projection system | |
| TW200950531A (en) | Light module device | |
| CN208239781U (en) | Wavelength convert module and projection arrangement | |
| CN105190432A (en) | Light source device and projection type image display device | |
| JP4733691B2 (en) | Projection-type image display device | |
| US20170139312A1 (en) | Light source device, projector and control method of light source device | |
| CN100347607C (en) | Three-colour luminous diode multi light source lighting device | |
| CN1490664A (en) | Color luminating system with special light modifier having multiple double distanct center inverters | |
| CN1554982A (en) | Multiple light source lighting system for projector | |
| US20060098451A1 (en) | Illuminator for video display apparatus | |
| CN1328612C (en) | Light source unit and projection type image display device using said unit | |
| US11789353B2 (en) | Illumination system and projection device | |
| CN1645250A (en) | Single-chip microdisplay projecting optical engine and projector of time division three-color LED light | |
| CN109976076A (en) | Wavelength converter, light supply apparatus and projection device | |
| KR102186825B1 (en) | Optical system and image projection device including the same | |
| CN100347606C (en) | LCD micromotion exposure and development device | |
| Sun et al. | 56‐3: A novel Emissive Projection display (EPD) on Fully‐Transparent Phosphor Screen | |
| CN1773368A (en) | Projector display system utilizing LED/LD |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20071107 Termination date: 20101216 |