CN204667037U - A kind of projection laser engine - Google Patents
A kind of projection laser engine Download PDFInfo
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- CN204667037U CN204667037U CN201520393180.4U CN201520393180U CN204667037U CN 204667037 U CN204667037 U CN 204667037U CN 201520393180 U CN201520393180 U CN 201520393180U CN 204667037 U CN204667037 U CN 204667037U
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- semiconductor laser
- reflection mirror
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- catoptron
- projection
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Abstract
The utility model discloses a kind of projection laser engine, semiconductor laser array module is rearranged by the mode of RGB tri-look semiconductor laser solid matter cloth, described reflection mirror array includes that multiple catoptron rearranges by parabola mode, reflection mirror array is provided with the front-right of semiconductor laser array module, and semiconductor laser and catoptron are one to one, described dissipation spot and light beam shaping module include diffusion sheet and concavees lens, described diffusion sheet and concavees lens are arranged on immediately below reflection mirror array successively, described gauge tap is electrically connected with semiconductor laser array module.The utility model can reduce the usage quantity of shaping lens in projection light source module by the reflection mirror array of arranging by parabola mode, improve the system efficiency of light energy utilization, simultaneously due to employing is catoptron, and structure is simple, reduces the cost of whole system.
Description
Technical field
The utility model relates to projection display technique field, particularly relates to a kind of projection laser engine.
Background technology
Full Color Laser Display Technique is a kind of emerging display technique, and compared to ultrahigh pressure mercury lamp (Ultra High Performance, UHP), metal halide lamp (Metal Halide Lamp, MHP) as light source, semiconductor laser adopts direct drive; Compared to light emitting diode (Light Emission Diode, LED), as light source, laser has the feature of high monochromaticity, high color saturation; Compared to adopting the structure of colour wheel, full laser display overcomes short problem in colour wheel serviceable life, can improve the brightness of the entirety of system simultaneously.
At present, the difference of projector optical engine spatially modulation technique is mainly divided into digital light process (Digital Light Process, DLP), liquid crystal on silicon (Liquid Crystal on Silicon, LCOS), liquid crystal light valve (Liquid Crystal Light Valve, LCLV) three classes, wherein LCD and LCOS structure needs incident light to be single polarization, and DLP structure is to incident light polarization no requirement (NR), so the line polarisation source of excellent performance becomes the optimal selection of light source.
At present, laser projection adopts coupling fiber and space optical coupling two kinds of modes.The shortcoming of coupling fiber is that device cannot miniaturization, and space optical coupling many employings X prism or two dichronic mirror structure, X prism complex process, cost is high, and two dichronic mirror structure cannot miniaturization further.Further, two kinds of above-mentioned coupling scheme all need the lens of some to convert light beam, and this can increase the loss of luminous energy, thus reduce the efficiency of light energy utilization of whole system, affect the brightness of projector.
Therefore, in order to reduce the light loss of projector, improving the brightness of projector, just must improve the structure of light engine.
Utility model content
The utility model object is exactly the defect in order to make up prior art, provides a kind of projection laser engine.
The utility model is achieved through the following technical solutions:
A kind of projection laser engine, include gauge tap, semiconductor laser array module, reflection mirror array and dissipation spot and light beam shaping module, described semiconductor laser array module is rearranged by the mode of RGB tri-look semiconductor laser solid matter cloth, described reflection mirror array includes that multiple catoptron rearranges by parabola mode, reflection mirror array is provided with the front-right of semiconductor laser array module, and semiconductor laser and catoptron are one to one, described dissipation spot and light beam shaping module include diffusion sheet and concavees lens, described diffusion sheet and concavees lens are arranged on immediately below reflection mirror array successively, described gauge tap is electrically connected with semiconductor laser array module.
Semiconductor laser array module is provided with the heat abstractor of TEC element, ensures system stable operation.
Before each semiconductor laser, collimating mirror is installed, for collimating the outgoing beam of semiconductor laser.
Metal-plated membrane or deielectric-coating on the described catoptron carrying out arranging according to parabola mode, to realize the high-level efficiency reflection of pair array laser.
Described concavees lens and described catoptron form confocal system, thus obtain the suitable parallel beam for projecting of spot size.
Described diffusion sheet can be that Electric Machine Control rotates, and also can be static or selection electrically-controlled liquid crystal device, thus can eliminate speckle.
For different micro-display panels, as dmd chip, LCOS chip and LCD, in the utility model, semiconductor laser can run simultaneously, also can time-division operation.
The three kinds of primary lights using RGB tri-look laser instrument to provide produce the method for three coloured light to replace traditional single LASER Light Source irradiation colour wheel that utilizes, thoroughly solve short problem in colour wheel serviceable life, simultaneously, full laser display has the advantage that color rendition degree is better, brightness is higher, and, because the semiconductor laser technology of commercialization is ripe all the more, greatly reduce the cost using RGB tri-look semiconductor laser.
The reflection mirror array of arranging by parabola mode is adopted to carry out the method for three primary colours light beam conjunction light to replace traditional utilize X prism or two dichronic mirror, greatly reduce the usage quantity of shaping lens, simultaneously, metal-plated membrane or deielectric-coating on the mirror, achieves and reflects the high-level efficiency of laser beam.Due in the utility model, the quantity using lens from semiconductor laser module to dissipation spot Shaping Module is zero, decreases the light loss of system, so can improve the efficiency of light energy utilization, obtains the outgoing beam of high brightness.
The utility model has the advantages that: the utility model can reduce the usage quantity of shaping lens in projection light source module by the reflection mirror array of arranging by parabola mode, improve the system efficiency of light energy utilization, simultaneously due to employing is catoptron, structure is simple, reduces the cost of whole system.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model laser projection light source;
Fig. 2 is the utility model semiconductor laser array structural representation;
Fig. 3 is the reflection mirror array two-dimensional structure schematic diagram of arranging by parabola mode.
Embodiment
As Fig. 1, 2, shown in 3, a kind of projection laser engine, include gauge tap 1, semiconductor laser array module 2, reflection mirror array 3 and dissipation spot and light beam shaping module 4, described semiconductor laser array module 2 is rearranged by the mode of RGB tri-look semiconductor laser 5 solid matter cloth, described reflection mirror array includes that multiple catoptron 6 rearranges by parabola mode, reflection mirror array 3 is provided with the front-right of semiconductor laser array module 2, and semiconductor laser 5 and catoptron 6 are one to one, described dissipation spot and light beam shaping module 4 include diffusion sheet 7 and concavees lens 8, described diffusion sheet 7 and concavees lens 8 are arranged on immediately below reflection mirror array 3 successively, described gauge tap 1 is electrically connected with semiconductor laser array module 2.
Semiconductor laser array module 2 is provided with the heat abstractor of TEC element, ensures system stable operation.
Before each semiconductor laser 5, collimating mirror is installed, for collimating the outgoing beam of semiconductor laser.
Metal-plated membrane or deielectric-coating on the described catoptron 6 carrying out arranging according to parabola mode, to realize the high-level efficiency reflection of pair array laser.
Described concavees lens 8 form confocal system with described catoptron 6, thus obtain the suitable parallel beam for projecting of spot size.
Described diffusion sheet 7 can be that Electric Machine Control rotates, and also can be static or selection electrically-controlled liquid crystal device, thus can eliminate speckle.
Described semiconductor laser array module is made up of RGB tri-look laser instrument solid matter cloth, and on array, the arrangement mode of light source can adopt various ways; By the number ratio of each primary colours semiconductor laser of adjustment, high-quality white light can be obtained.Because the angle of divergence of semiconductor laser is larger, so place collimation drum mirror to obtain directional light after each laser instrument.Gauge tap is work or time-sharing work for controlling laser instrument simultaneously, thus is applicable to different micro-display elements, as dmd chip, LCOS chip and LCD.
Tricolor semiconductor laser array structures schematic diagram as shown in Figure 2, the laser instrument of RGB tri-look is arranged in the mode of solid matter cloth, Fig. 2 just lists a kind of possible arrangement mode, and actual number of lasers is determined by the requirement of the white balance of final demand fulfillment.
The reflection mirror array that described parabola mode is arranged is key component of the present utility model, as shown in Figure 3, is made up of the catoptron of paraboloid structure module and metal-plated membrane or deielectric-coating.The quantity of catoptron is not limited to the quantity in Fig. 2, and its quantity should be consistent with the number of lasers in semiconductor laser array module, and should one_to_one corresponding on position.Because the light beam parallelism after drum mirror is relatively good, spot size is also smaller simultaneously, so the size of catoptron should be suitable with spot size.The draw-in groove that catoptron can utilize is fixed, and seccotine also can be utilized to be fixed in module.Owing to being paraboloid structure, so the laser beam of reflection all converges at this paraboloidal focus place.It should be noted that and conveniently understand, Fig. 3 only gives the sectional view of two dimension, and actual device should be the device being similar to parabolic reflector, has the structure of parabolic shape.
The relevant speckle effect caused by laser is eliminated in the effect of diffusion sheet.The light beam assembled first through diffusion sheet, then through concavees lens.The device eliminating speckle can be the diffusion sheet that Electric Machine Control rotates, or static diffusion sheet, and electrically-controlled liquid crystal device also can be adopted to eliminate speckle.The focus of concavees lens and the focus of reflection mirror array overlap, thus obtain parallel beam outgoing, can utilize luminous energy effectively and uniformly.
Claims (6)
1. a projection laser engine, it is characterized in that: include gauge tap, semiconductor laser array module, reflection mirror array and dissipation spot and light beam shaping module, described semiconductor laser array module is rearranged by the mode of RGB tri-look semiconductor laser solid matter cloth, described reflection mirror array includes that multiple catoptron rearranges by parabola mode, reflection mirror array is provided with the front-right of semiconductor laser array module, and semiconductor laser and catoptron are one to one, described dissipation spot and light beam shaping module include diffusion sheet and concavees lens, described diffusion sheet and concavees lens are arranged on immediately below reflection mirror array successively, described gauge tap is electrically connected with semiconductor laser array module.
2. a kind of projection laser engine according to claim 1, is characterized in that: the heat abstractor being provided with TEC element in semiconductor laser array module.
3. a kind of projection laser engine according to claim 1, is characterized in that: before each semiconductor laser, be provided with collimating mirror.
4. a kind of projection laser engine according to claim 1, is characterized in that: metal-plated membrane or deielectric-coating on the described catoptron carrying out arranging according to parabola mode.
5. a kind of projection laser engine according to claim 1, is characterized in that: described concavees lens and described catoptron form confocal system.
6. a kind of projection laser engine according to claim 1, is characterized in that: described diffusion sheet can be that Electric Machine Control rotates, and also can be static or selection electrically-controlled liquid crystal device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520393180.4U CN204667037U (en) | 2015-06-08 | 2015-06-08 | A kind of projection laser engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520393180.4U CN204667037U (en) | 2015-06-08 | 2015-06-08 | A kind of projection laser engine |
Publications (1)
| Publication Number | Publication Date |
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| CN204667037U true CN204667037U (en) | 2015-09-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520393180.4U Active CN204667037U (en) | 2015-06-08 | 2015-06-08 | A kind of projection laser engine |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106291965A (en) * | 2016-08-26 | 2017-01-04 | 湖北久之洋红外系统股份有限公司 | A kind of without speckle tricolor laser light source and laser projection system |
| CN107143756A (en) * | 2017-06-14 | 2017-09-08 | 杨毅 | Light fixture |
| CN107166179A (en) * | 2017-06-14 | 2017-09-15 | 杨毅 | Light fixture |
| CN107166181A (en) * | 2017-06-14 | 2017-09-15 | 杨毅 | Light fixture |
| CN107329197A (en) * | 2017-06-14 | 2017-11-07 | 杨毅 | Method, concave reflection lens array and the light fixture of reflection mirror array are pasted on concave structure |
| CN109687291A (en) * | 2019-03-05 | 2019-04-26 | 中国科学院福建物质结构研究所 | Array laser coupling device |
| CN110345394A (en) * | 2018-04-04 | 2019-10-18 | 深圳市Tcl高新技术开发有限公司 | A kind of light collecting device |
| CN113437635A (en) * | 2020-03-23 | 2021-09-24 | 青岛海信激光显示股份有限公司 | Laser device |
| CN115289436A (en) * | 2018-12-13 | 2022-11-04 | 深圳市中光工业技术研究院 | Light source device |
-
2015
- 2015-06-08 CN CN201520393180.4U patent/CN204667037U/en active Active
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106291965A (en) * | 2016-08-26 | 2017-01-04 | 湖北久之洋红外系统股份有限公司 | A kind of without speckle tricolor laser light source and laser projection system |
| CN106291965B (en) * | 2016-08-26 | 2019-10-29 | 湖北久之洋红外系统股份有限公司 | A kind of no speckle tricolor laser light source and laser projection system |
| CN107143756A (en) * | 2017-06-14 | 2017-09-08 | 杨毅 | Light fixture |
| CN107166179A (en) * | 2017-06-14 | 2017-09-15 | 杨毅 | Light fixture |
| CN107166181A (en) * | 2017-06-14 | 2017-09-15 | 杨毅 | Light fixture |
| CN107329197A (en) * | 2017-06-14 | 2017-11-07 | 杨毅 | Method, concave reflection lens array and the light fixture of reflection mirror array are pasted on concave structure |
| CN107143756B (en) * | 2017-06-14 | 2020-05-08 | 上海安茗科技中心(有限合伙) | Lamp fitting |
| CN110345394A (en) * | 2018-04-04 | 2019-10-18 | 深圳市Tcl高新技术开发有限公司 | A kind of light collecting device |
| CN115289436A (en) * | 2018-12-13 | 2022-11-04 | 深圳市中光工业技术研究院 | Light source device |
| CN109687291A (en) * | 2019-03-05 | 2019-04-26 | 中国科学院福建物质结构研究所 | Array laser coupling device |
| CN109687291B (en) * | 2019-03-05 | 2024-04-12 | 中国科学院福建物质结构研究所 | Array laser coupling device |
| CN113437635A (en) * | 2020-03-23 | 2021-09-24 | 青岛海信激光显示股份有限公司 | Laser device |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |