CN110824821A - Hybrid light source coupling system based on laser light source and LED light source - Google Patents
Hybrid light source coupling system based on laser light source and LED light source Download PDFInfo
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B21/00—Projectors or projection-type viewers; Accessories therefor
- G03B21/14—Details
- G03B21/20—Lamp housings
- G03B21/2006—Lamp housings characterised by the light source
- G03B21/2013—Plural light sources
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B21/00—Projectors or projection-type viewers; Accessories therefor
- G03B21/14—Details
- G03B21/20—Lamp housings
- G03B21/2006—Lamp housings characterised by the light source
- G03B21/2033—LED or laser light sources
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B21/00—Projectors or projection-type viewers; Accessories therefor
- G03B21/14—Details
- G03B21/20—Lamp housings
- G03B21/2066—Reflectors in illumination beam
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Abstract
The invention relates to a light source system for projection display, and discloses a hybrid light source coupling system based on a laser light source and an LED light source, which effectively reduces the influence of speckles on the display effect and provides a new light source scheme for projection display. The system comprises a red light source component, a blue light source component, a green light source component and a color combination component, wherein each primary color subassembly combines a laser light source and an LED light source of each primary color in a mode of one reflection and one transmission through a dichroic mirror, so that two light sources of each primary color are transmitted along the same direction, and each primary color LED needs to be added with a collimating lens component to enable an LED light beam to be emergent close to parallel light as much as possible. The three light source components are combined through the color combination component, so that the three primary color light beams are emitted in the same direction, and the rear end of the three primary color light beams is connected with the illumination system of the projection light machine. By doping the LED in the laser light source, the weakening of laser speckles can be realized, and the influence of the speckles on the display effect can be alleviated on the sense of human eyes.
Description
Technical Field
The invention relates to a light source system for projection display, in particular to a hybrid light source coupling system based on a laser light source and an LED light source.
Background
The laser has great advantages in display effect relative to other projection light sources due to good monochromaticity and high brightness, and meanwhile, the service life of a common laser is more than tens of thousands of hours, so that the problem that the light source needs to be frequently replaced in the use process of a mercury lamp projector can be effectively solved. At present, the laser display market is in a period of high-speed development, technology change is also changing day by day, and although the mainstream product at present is still laser display of a scheme of single-color laser and fluorescent powder, double-color and three-color laser display has become a future development direction.
Whether a monochromatic, bichromatic or tricolor laser display is adopted, the extremely narrow line width of the laser can introduce a longer coherence length (or coherence time), and if the display is directly carried out on a projection screen without carrying out the coherent elimination treatment, a remarkable bright spot, namely a speckle which is commonly known as the speckle, can be seen on the screen. Speckle has a serious influence on imaging quality, and particularly for three-color pure laser display, since R, G, B three primary colors all use lasers, each of which generates speckle, wherein red laser has the longest line width, the longest coherence length (coherence time), the most serious interference, and the most obvious speckle. It can be said that the resolution of the speckle problem is a necessary condition directly related to whether three-color laser display can be marketed.
At present, most of solutions for dissipating the speckle have a scattering element introduced in the optical path to homogenize the speckle, which has a certain effect of improving the speckle, but still cannot achieve a satisfactory display effect.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: the hybrid light source coupling system based on the laser light source and the LED light source is provided, the influence of speckles on the display effect is effectively reduced, and meanwhile, a new light source scheme is provided for projection display.
The technical scheme adopted by the invention for solving the technical problems is as follows:
a hybrid light source coupling system based on a laser light source and an LED light source comprises: the color combination component and three primary light source components: a red light source assembly, a blue light source assembly and a green light source assembly; each primary light source component comprises one or two of an LED light source and a laser light source corresponding to primary colors, and light beams of each primary light source component are combined by the color combination component and then spread along the same direction.
As a further optimization, at least one of the primary light source components comprises a spectroscope corresponding to a primary color, and the spectroscope performs beam combination of light beams corresponding to the primary colors in a manner of transmitting the light beams of the LED light source and reflecting the light beams of the laser light source; or, the light beams of the LED light source are reflected, the light beams of the laser light source are transmitted, and the light beams corresponding to the primary colors are combined, the transmission direction of the optical axis of the transmitted light beam is not changed during beam combination, and the direction of the optical axis of the reflected light beam is turned by 90 degrees, so that the two light beams are transmitted in the same direction.
As a further optimization, at least one of the primary light source assemblies includes a collimating lens therein for collimating the light beams of the LED light sources of the corresponding primary colors.
As a further optimization, a scattering component is further arranged between the laser light source and the spectroscope in at least one of the primary color light source components, and light beams of the laser light source are incident on the scattering component at an angle of 90 °.
As a further optimization, the light-emitting spectrums of the LED light sources and the laser light sources with the same primary colors have certain dislocation.
As further optimization, the color combination assembly comprises a first color combination mirror and a second color combination mirror, wherein the first color combination mirror is used for integrating light beams of two primary color light sources in the three primary color light source assemblies into a light path in the same direction in a projection and reflection mode; the second color combiner is used for integrating light beams emitted by the light sources with the residual primary colors into light paths in the same direction.
As a further optimization, the driving mode of each primary color light source component selects a PW (time-sequential pulse) mode or a CW (continuous constant current) mode according to the requirement of the display modulation mode.
As a further optimization, the laser light source is formed by packaging a plurality of identical lasers and is designed with a collimating lens.
As a further optimization, the sequence of the primary color light source components can be freely arranged according to the design requirements of the system.
The invention has the beneficial effects that:
compared with pure laser display, the LED display device has the advantages that the LED light source and the laser light source are skillfully mixed, and after the LED light source is mixed, part of brightness can be supplemented, and meanwhile, a certain mitigation effect can be realized on speckles caused by the pure laser display. Compared with an LED light source projection system, the LED projection system can solve the problem of low LED projection brightness after being combined with a laser light source, can break through the color gamut limit of LED projection, provides a new light source selection for the current laser projection and LED projection fields, and has a great positive effect on the development of the projection industry. Therefore, the invention can weaken the influence of the pure laser projection speckle on the display effect and can also make up the defects of LED projection brightness and color.
Drawings
FIG. 1 is a schematic diagram of a three-color mixed light source and a side light combining system;
FIG. 2 is a schematic diagram of a three-color mixed light source and a light combining system (with a laser scattering device added);
FIG. 3 is a schematic diagram of a three-color hybrid light source structure;
FIG. 4 is a schematic diagram of a laser projection light source structure of an R monochromatic mixed light source;
FIG. 5 is a schematic diagram of an R, B laser projection light source structure of a two-color mixing light source;
fig. 6 is a schematic diagram of a laser projection light source structure of a pure laser non-hybrid light source.
The various labels in the figures illustrate:
10 green light source assembly:
11 a green laser light source; 12 green LED light sources; 13 green light LED collimating lens group; 14 a green beam splitter; 15 green laser scattering device;
20 blue light source component:
21 a blue laser light source; 22 blue LED light source; 23 blue light LED collimating lens group; 24 blue light beam splitter; 25 blue laser scattering devices;
30 red light source assembly:
31 a red laser light source; a 32 red LED light source; 33 a red LED collimating lens group; 34 a red beam splitter; 35 red laser light scattering device;
40 color combination component:
41BG color combining mirror; 42RGB color combiner;
50 illumination system.
Detailed Description
The invention aims to provide a hybrid light source coupling system based on a laser light source and an LED light source, which effectively reduces the influence of speckles on the display effect and provides a new light source scheme for projection display.
In the specific implementation, the hybrid light source coupling system comprises a blue light source component, a green light source component, a red light source component and a color combining component, wherein the light source components are combined through the color combining component, and finally light beams are transmitted along the same direction.
Further, each primary color subassembly of the light source coupling system respectively comprises a laser light source corresponding to the primary color, an LED light source and a dichroic mirror corresponding to the primary color.
Further, each primary color subassembly of the light source coupling system can be selected to only use a laser light source or only use an LED light source or both according to the design requirements of the system.
Furthermore, a scattering sheet can be optionally added before the laser light source of each primary color subassembly is incident on the dichroic mirror according to the design requirement of the uniformity of the system, and the laser beam emitted by the laser light source is incident on the scattering sheet at an incident angle of 90 degrees.
Furthermore, the laser light source and the LED light source of each primary color subassembly are combined through a dichroic mirror, and two modes can be selected according to the design requirements of the system, wherein one mode is LED light beam transmission, the laser light beam of the laser light source is reflected, the other mode is LED light beam reflection, and the laser light beam of the laser light source is transmitted.
Furthermore, beam combination is realized through a dichroic mirror based on the laser light sources of the primary colors and the LED light sources, and a certain interval is considered when the effective wavelength between the LED light sources and the laser light sources is selected to ensure that the difficulty of the dichroic mirror in film coating is reduced as much as possible, the mass production is ensured to have manufacturability, and the cost is not too high.
Further, the laser light source in the light source module is generally provided with a collimating lens when leaving a factory, an emitted light beam is substantially parallel light, and certainly, some laser diodes supplied by a laser light source manufacturer do not collimate the laser light beam when leaving the factory, and for such laser light sources, a collimating lens assembly of the laser light source should be considered to be added in the light path design.
Further, manufacturers of LED light sources in the light source module generally do not perform collimation when leaving factories, and a collimating lens set needs to be designed for the LED light sources during light path design to ensure the coupling efficiency between the LED light sources and the rear-end optical system.
Further, the laser light source used by the light source assembly is formed by packaging a plurality of identical lasers together to provide sufficient optical power, and the size of a collimated light spot is as small as possible to ensure the coupling efficiency of the laser light source and the rear-end optical system.
Further, each light source in the light source module is incident on the surface of the dichroic mirror at an angle of 45 °.
Furthermore, the red light source component, the blue light source component and the green light source component can be freely arranged according to the design requirement of the system.
Further, the color combination component comprises two separate color combination mirrors.
Furthermore, when the light source coupling system comprises three primary color light source components, the light sources of two primary colors are integrated in the same direction in a one-transmission-one-reflection mode through a first color combiner of the color combining component, and then light beams emitted by the light sources of the remaining primary colors are integrated into a light path through a second color combiner of the color combining component in the same mode.
Furthermore, the light beam of the light source coupling system after light combination comprises coherent light and incoherent light, the light beam is emitted out in parallel so as to be coupled to a rear illumination light path, and according to an image debugging mode at the rear end, the light source can select a PW mode to output different monochromatic light at different time and can also select a CW mode to output synthesized white light.
The scheme of the invention is further described by combining the drawings and the embodiment:
example 1:
in the present embodiment, an example of combining light from the same side of a RGB three-color mixed light source is shown in fig. 1, and a green light source assembly 10, a blue light source assembly 20, and a red light source assembly 30 are sequentially arranged from left to right; the green light source assembly 10 comprises a green laser light source 11, a green LED light source 12, a green LED collimating lens 13 and a green spectroscope 14; the blue light source component 20 comprises a blue light laser light source 21, a blue light LED light source 22, a blue light LED collimating lens 23 and a blue light spectroscope 24; the red light source component 30 comprises a red light laser source 31, a red light LED light source 32, a red light LED collimating lens 33 and a red light beam splitter 34; the color combination assembly 40 is composed of a BG color combination mirror 41 and an RGB color combination mirror 42, and the illumination system 50 is located at the rear end of the light path after the three-color mixed light source combines light.
The green laser light source 11 selected in this embodiment is an LD integrated product with a peak wavelength of 525nm, and is collimated, the emitted light beam is substantially parallel light, and the light emission spectrum is about 518nm to 527 nm. The green LED light source 12 has a light emission spectrum of approximately 480nm to 600nm, and a band with higher energy is concentrated in a range of 500nm to 600 nm. The light beams emitted by the green laser light source 11 and the green LED light source 12 are incident on the green beam splitter 14 at an incident angle of 45 °. The coating requirements of the green spectroscope 14 are as follows: AOI is 45 degrees, Tmin is more than or equal to 98 percent at 518nm-527nm, Rmin is more than or equal to 98 percent at 545nm-600nm, T50 is 535nm, slope is | T10-T90 | ≦ 15 nm. The green beam splitter 14 is substantially a low-pass filter, when the above coating requirements are met, the propagation direction of the laser beam emitted by the laser source 11 after passing through the green beam splitter 14 is unchanged, the beam emitted by the green LED light source 12 is collimated by the green LED collimating lens group 13 and then approaches to a parallel beam as much as possible, and the propagation direction is changed by 90 degrees after being reflected by the green beam splitter 14, so that the green laser beam and the LED beam propagate in the same direction.
The blue light laser source 21 is also an LD integrated product, and is collimated when leaving the factory, the peak wavelength is 465nm, the emission spectrum is approximately 462nm to 468nm, the emission spectrum of the blue light LED source 22 is 425nm to 475nm, and the peak wavelength is approximately 450nm, so the coating requirement of the blue light spectroscope 24 here is: AOI is 45 degrees, Tmin is more than or equal to 98 percent at 462nm-468nm, Rmin is more than or equal to 98 percent at445nm-452nm, T50 is 458nm, slope is | T10-T90 | is less than or equal to 8 nm. The blue light beam splitter 24 is substantially a high-pass filter, and when the above coating requirements are met, the blue light laser source 21 and the blue light LED source 22 can combine light in the same mode as the green light source module, and certainly the blue light LED source also needs to be collimated by the blue light LED collimating lens group 23 before being incident on the blue light beam splitter 24.
The peak wavelength of the red light laser light source 31 is 638nm, the luminescence spectrum is 637nm-640nm, the luminescence spectrum of the red light LED light source 32 is 600nm-640nm, and the peak wavelength is 622nm, so the coating specification of the red light spectroscope 34 is as follows: AOI is 45 degrees, Tmin is more than or equal to 98% at 637nm-640nm, Rmin is more than or equal to 98% at 610nm-624nm, T50 is more than or equal to 630nm, slope is T10-T90 is less than or equal to 9nm, namely the red light beam splitter 34 is a high-pass filter in substance, and the red LED light source 32 is collimated by the red LED collimating lens group 33 and then is combined with the red laser light source 31 in the same way as the blue-green light source component.
Through the above arrangement, it has been realized that each of the three primary color light source assemblies has only one optical axis direction, and the light beams of the green light source assembly 10 and the blue light source assembly 20 are all incident on the BG color combining mirror 41 at an incident angle of 45 degrees, and according to the light source wavelength used by the above-mentioned blue-green light, the coating requirement of the BG color combining mirror 41 here is: AOI is 45 degrees, Tmin is more than or equal to 98 percent at 510nm-580nm, Rmin is more than or equal to 98 percent at 440nm-475nm, T50 is 492nm, slope is | T10-T90 | < 20nm, and the BG color combining mirror 41 is a high-pass filter in substance. The mixed light beam emitted by the green light source component 10 passes through the BG color combining mirror 41, and then the optical axis direction is unchanged, and the mixed light beam emitted by the blue light source component 20 passes through the BG color combining mirror 41, and then the optical axis direction is turned by 90 degrees, so that the green light and the blue light are transmitted along the same direction. The RGB color combiner 42 needs to transmit BG light from the green light source assembly 10 and the blue light source assembly 20 and reflect R light from the red light source assembly 30, and according to the wavelength of each primary color light source, the RGB color combiner 42 should meet the requirement of coating: AOI is 45 degrees, Tmin is more than or equal to 98% at 440nm-580nm, Rmin is more than or equal to 98% at 610nm-650nm, T50 is 595nm, slope is | T10-T90 | is less than or equal to 20nm, after the RGB color combiner 42, the direction of the R light axis is turned 90 degrees, the direction of the BG light axis is unchanged, and finally the mixed light source of RGB tricolor is incident into the lighting system 50 of the projection light machine along the same direction as parallel light beams.
On the basis of the light source coupling system shown in fig. 1, in order to better eliminate laser speckle, laser scattering devices, such as scattering sheets, are optionally added before laser beams of the three-primary-color light source assembly enter the beam splitter, that is, scattering devices such as 15, 25, 35 and the like are added as shown in fig. 2, and the scattering devices such as 15, 25, 35 and the like can be simultaneously selected and can also be partially selected according to the design requirements of the system.
Certainly, sometimes for the purpose of facilitating the design of the whole device or improving the heat dissipation efficiency of the system, the blue light source assembly 20 or the red light source assembly 30 may be arranged on different sides of the main optical axis, and at this time, only the corresponding color combining mirror needs to be rotated by 90 ° at the same time, and the specific architecture may refer to fig. 3, and will not be described again here.
Example 2:
fig. 4 is a schematic view of a laser projection light source structure of an R monochromatic mixed light source. In the pure laser display field, the interference effect of the red laser is strongest due to the wavelength of the red laser, so that the red speckle has the largest influence on the display effect, and in practical application, it is an urgent requirement to weaken the red speckle, and aiming at a practical application scene, the simplification is performed on the basis of embodiment 1, only a mixed light source is introduced into the red light source component 30, and the blue light source component and the green light source component only contain laser light sources, in this embodiment, the three-primary-color beam combining mode and the red light source component 31 are the same as those in embodiment 1, and no further description is needed here.
Furthermore, in a projection system that pursues extreme colors without using a mixed light source, three primary color laser light sources can be directly used to couple in the beam combining manner, and please refer to fig. 6 for specific structure.
Example 3:
referring to fig. 5, a schematic diagram of a laser projection light source structure of an R, B dual-color mixed light source is shown, and this embodiment is a modification of the above embodiment to meet the usage requirements of more scenes. In this embodiment, the blue light source assembly 20 and the red light source assembly 30 are mixed light sources, and the beam combination method is the same as that of the first embodiment, the green light source assembly includes only the green laser light source 11, and the three primary color light source assemblies 10, 20, and 30 are also combined by the color combination assembly 40.
In addition, it is also feasible that the two-color mixed light source described in this embodiment selects different primary color combinations (such as RG, GB) as the mixed light source according to different usage requirements, and the basic architecture thereof does not depart from the above embodiments.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and it should be understood by those skilled in the art that various combinations, modifications or equivalent substitutions may be made to the technical solution of the present invention without departing from the spirit and scope of the technical solution of the present invention, and the technical solution of the present invention should be included in the scope of the claims of the present invention.
Claims (9)
1. A mixed light source coupling system based on a laser light source and an LED light source is characterized in that,
the method comprises the following steps: the color combination component and three primary light source components: a red light source assembly, a blue light source assembly and a green light source assembly; each primary light source component comprises one or two of an LED light source and a laser light source corresponding to primary colors, and light beams of each primary light source component are combined by the color combination component and then spread along the same direction.
2. A hybrid light source coupling system based on a laser light source and an LED light source as claimed in claim 1,
the LED light source is characterized in that at least one primary light source component comprises a collimating lens used for collimating the light beams of the LED light sources with the corresponding primary colors.
3. A hybrid light source coupling system based on a laser light source and an LED light source as claimed in claim 1,
the LED light source is characterized in that at least one primary light source component comprises a spectroscope corresponding to primary colors, and the spectroscope performs light beam combination corresponding to the primary colors in a mode of transmitting light beams of the LED light source and reflecting the light beams of the laser light source; or, the light beams of the LED light source are reflected, the light beams of the laser light source are transmitted, and the light beams corresponding to the primary colors are combined, the transmission direction of the optical axis of the transmitted light beam is not changed during beam combination, and the direction of the optical axis of the reflected light beam is turned by 90 degrees, so that the two light beams are transmitted in the same direction.
4. A hybrid light source coupling system based on laser light source and LED light source as claimed in claim 3,
the device is characterized in that a scattering component is further arranged between the laser light source and the spectroscope in at least one primary color light source component, and light beams of the laser light source are incident on the scattering component at an angle of 90 degrees.
5. A hybrid light source coupling system based on a laser light source and an LED light source as claimed in claim 1,
the LED laser is characterized in that certain dislocation exists between the light emitting spectrums of the LED light sources and the laser light sources with the same primary colors.
6. A hybrid light source coupling system based on a laser light source and an LED light source as claimed in claim 1,
the color combining component comprises a first color combining mirror and a second color combining mirror, wherein the first color combining mirror is used for integrating light beams of light sources of two primary colors in the three primary color light source components into a light path in the same direction in a projection and reflection mode; the second color combiner is used for integrating light beams emitted by the light sources with the residual primary colors into light paths in the same direction.
7. A hybrid light source coupling system based on a laser light source and an LED light source as claimed in claim 1,
the driving mode of each primary color light source component is selected from a PW mode or a CW mode according to the requirement of a display modulation mode.
8. A hybrid light source coupling system based on a laser light source and an LED light source as claimed in claim 1,
the laser source is characterized in that the laser source is formed by packaging a plurality of identical lasers and is provided with a collimating lens.
9. A hybrid light source coupling system based on a laser light source and an LED light source as claimed in any one of claims 1-8,
the method is characterized in that the sequence of the primary color light source components can be freely arranged according to the design requirement of the system.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111458891A (en) * | 2020-05-07 | 2020-07-28 | 青岛海泰新光科技股份有限公司 | Combined method for realizing multi-channel color combination light source |
| CN112631056A (en) * | 2020-12-28 | 2021-04-09 | 苏州视奥光电科技有限公司 | Method for increasing fluorescent projection display brightness |
| CN113347755A (en) * | 2021-06-16 | 2021-09-03 | 广州市凯佳光学科技有限公司 | Multi-color light emitting control method and multi-color light source |
| EP4198381A1 (en) * | 2021-12-20 | 2023-06-21 | CLAY PAKY S.p.A. | Lighting device |
| EP3958058A4 (en) * | 2020-06-24 | 2023-06-28 | Chengdu Xgimi Technology Co., Ltd | Mixed light source system and projection display device |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201097088Y (en) * | 2007-11-08 | 2008-08-06 | 北京中视中科光电技术有限公司 | A light source device for projection system and projection display device |
| CN101855902A (en) * | 2007-09-25 | 2010-10-06 | 以克斯普雷有限公司 | Micro-projector |
| CN102736382A (en) * | 2011-04-12 | 2012-10-17 | 骆庆疆 | Projection optical engine with laser-LED hybrid light source |
| CN104520767A (en) * | 2012-08-01 | 2015-04-15 | Nec显示器解决方案株式会社 | Illumination optical system and projection display device |
| CN105474073A (en) * | 2013-08-26 | 2016-04-06 | 罗伯特·博世有限公司 | Light-source device, in particular for use in a micromirror device |
| CN205191303U (en) * | 2015-11-25 | 2016-04-27 | 深圳市佶达德科技有限公司 | Laser lighting device |
-
2019
- 2019-11-21 CN CN201911148862.8A patent/CN110824821A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101855902A (en) * | 2007-09-25 | 2010-10-06 | 以克斯普雷有限公司 | Micro-projector |
| CN201097088Y (en) * | 2007-11-08 | 2008-08-06 | 北京中视中科光电技术有限公司 | A light source device for projection system and projection display device |
| CN102736382A (en) * | 2011-04-12 | 2012-10-17 | 骆庆疆 | Projection optical engine with laser-LED hybrid light source |
| CN104520767A (en) * | 2012-08-01 | 2015-04-15 | Nec显示器解决方案株式会社 | Illumination optical system and projection display device |
| CN105474073A (en) * | 2013-08-26 | 2016-04-06 | 罗伯特·博世有限公司 | Light-source device, in particular for use in a micromirror device |
| CN205191303U (en) * | 2015-11-25 | 2016-04-27 | 深圳市佶达德科技有限公司 | Laser lighting device |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111458891A (en) * | 2020-05-07 | 2020-07-28 | 青岛海泰新光科技股份有限公司 | Combined method for realizing multi-channel color combination light source |
| EP3958058A4 (en) * | 2020-06-24 | 2023-06-28 | Chengdu Xgimi Technology Co., Ltd | Mixed light source system and projection display device |
| CN112631056A (en) * | 2020-12-28 | 2021-04-09 | 苏州视奥光电科技有限公司 | Method for increasing fluorescent projection display brightness |
| CN113347755A (en) * | 2021-06-16 | 2021-09-03 | 广州市凯佳光学科技有限公司 | Multi-color light emitting control method and multi-color light source |
| CN113347755B (en) * | 2021-06-16 | 2022-06-17 | 广州市凯佳光学科技有限公司 | Multi-color light emitting control method and multi-color light source |
| EP4198381A1 (en) * | 2021-12-20 | 2023-06-21 | CLAY PAKY S.p.A. | Lighting device |
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