CN200972539Y - Light source device for laser display - Google Patents
Light source device for laser display Download PDFInfo
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- CN200972539Y CN200972539Y CN 200620133986 CN200620133986U CN200972539Y CN 200972539 Y CN200972539 Y CN 200972539Y CN 200620133986 CN200620133986 CN 200620133986 CN 200620133986 U CN200620133986 U CN 200620133986U CN 200972539 Y CN200972539 Y CN 200972539Y
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- light source
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Abstract
The utility model relates to a light source device for laser display, in particular to a light source device that meets the requirements of large screen laser display and high power. The device includes a RGB tricolor laser light source and a group beam device, and each laser light source of each primary color comprises at least two lasers. The light source device for laser display of the utility model makes a breakthrough in the system framework of the RGB tricolor laser composition and the device adopts the technology of incoherent group beams; by increasing the number of lasers, the output power of the light source is increased; furthermore, the single laser modules can be detached at will, so the device realizes the modular design of the whole light source device, which elevates the reliability and serviceability of the light source and reduces the cost of the light source system. The device can meet the requirements of super large laser display and make the device develop towards the trend of large screen and high brightness.
Description
Technical field
The utility model relates to a kind of light supply apparatus that is used for laser display system, particularly a kind of light supply apparatus that can satisfy Large Screen Laser Display and high power requirement.
Background technology
Laser display is the great-leap-forward development of display technique, is the significant development direction in demonstration field.Laser display has bigger gamut range, and laser is line spectrum, has high color saturation, can show the truest, the abundantest, the gay colours of nature, because laser direction is good, can realize higher display resolution, be the display technique of future generation after white and black displays, colored demonstration, numeral show.
In the prior art, RGB (RGB) the tricolor laser light source that is used for laser display all adopts the separate unit laser instrument, as document: " all-solid state laser color video display technique " (in October, 2004 that people such as the Liu Weiqi of Changchun ray machine institute of the Chinese Academy of Sciences delivered in " liquid crystal and demonstration " in 2004, the 19th volume, the 5th phase, the 325-328 page or leaf) disclosed technology in, adopt the light source of the separate unit laser instrument of RGB three looks respectively as laser display, utilize synthetic mirror group, close bundle with a branch of in addition by synthetic mirror group again after two bundles that earlier will be wherein are synthetic a branch of.
The red-green-blue LASER Light Source that prior art is used for laser display all adopts the deficiency of separate unit laser instrument to be: (1) people wish the demonstration of laser display realization giant-screen, high brightness, but the output power of separate unit laser instrument is limited, increase along with screen, the brightness of display frame reduces gradually, is difficult to satisfy the brightness requirement of Large Screen Laser Display; (2) there is the shortcoming of poor reliability separately in high power red turquoise tricolor laser device as light source, and any laser instrument goes wrong and all will cause whole display system not work, thereby has limited the development of laser display.
The utility model content
The purpose of this utility model is to overcome the defective of the light supply apparatus of above-mentioned existing laser display system, thereby provides a kind of high power, high stability, be applicable to the light supply apparatus of Large Screen Laser Display.
The light supply apparatus that is used for laser display that the utility model provides comprises RGB tricolor laser light source and beam combination device, it is characterized in that, the LASER Light Source of every kind of primary colours is by at least two laser constitutions.
Further, described beam combination device comprises a plurality of convergent lenses and a plurality of optical fiber, and the light beam that each laser instrument sends is coupled into single or multifiber through each self-corresponding convergent lens, and the output terminal with whole optical fiber is packaged into a branch of fibre bundle then.
Further, described beam combination device also comprises a sleeve pipe, is used for the output terminal of whole optical fiber is packaged into a branch of fibre bundle;
Further, described beam combination device comprises a plurality of convergent lenses and a plurality of optical fiber, the light beam that the laser instrument of arbitrary primary colours sends in the RGB three primary colours is coupled into single or multifiber through a convergent lens, light beam that all the other primary colours laser instruments send is coupled into single or multifiber through each self-corresponding convergent lens, and the output terminal of whole optical fiber is packaged into a branch of fibre bundle.
Further, the input end face of described optical fiber is plane, hemisphere face or circular conical surface.
Further, described beam combination device comprises also and closes the beam convergence lens that the light that described fibre bundle sends is coupled into output optical fibre through second convergent lens.
Further, the LASER Light Source of described every kind of primary colours is respectively by two laser constitutions that send p polarized light and s polarized light separately; Described beam combination device comprises first, second, third polarization beam splitter at the laser instrument light-emitting window place that is arranged on every kind of primary colours, being arranged on first on the emitting light path of the second and the 3rd polarization beam splitter closes the look mirror and is arranged on the 3rd polarization beam splitter and described first closes second on the look mirror emitting light path and close the look mirror; The light of two laser instrument emissions of every kind of primary colours is coupled as a branch of coupling light through polarization beam splitter, the coupling light of wherein any two kinds of primary colours is closed the coupling of look mirror through first becomes mixed light, and described mixed light is coupled into a branch of light through second coupling light of closing look mirror and another kind of primary colours.
Further, between described laser instrument and beam combination device, also be provided with orthopedic systems and colimated light system.
Further, described orthopedic systems is post lens, globe lens or the optical system that realizes shaping.
Further, described colimated light system is globe lens or the optical system that realizes collimation.
Further, described laser instrument is semiconductor laser or solid state laser.
Further, described laser instrument is the laser instrument of same type or is dissimilar laser instruments.
Laser display of the present utility model has been broken through original laser display RGB tricolor laser constitution system framework with light source, adopt incoherent beam combination technology, just can improve the output power of light source by the quantity that increases laser instrument, and the random dismounting and change of single laser module, realized the modular design of whole light source device, the reliability and the maintenanceability of light source have been improved, reduced the cost of light-source system, can satisfy the requirement of jumbotron laser display, it is developed to giant-screen, high brightness direction.
Description of drawings
Fig. 1 is the high power laser fiber coupling device that RGB three look laser all adopt solid state laser
Fig. 2 is the high power laser fiber coupling device that red laser adopts semiconductor laser
Fig. 3 adopts the high-power laser coupling device of PBS
Fig. 4 adopts the another kind of high-power laser coupling device of PBS
Embodiment
Below in conjunction with specific embodiment the utility model is made further explanation.
Embodiment 1
As shown in Figure 1, the light supply apparatus that is used for laser display, light source comprises the red laser light source of being made up of n ruddiness solid state laser, represent with R1-Rn among Fig. 1, the green laser light source of forming by m green glow solid state laser, represent with G1-Gn among Fig. 1, with form the blue laser light source by k blue light solid state laser device, represent with B1-Bn among Fig. 1, n wherein, m, ratio between the k should be set according to the output power and the Show Color ratio requirement of each laser instrument, this is adequate to those skilled in the art, and selecting n=6 platform wavelength such as present embodiment is 671nm, output power is the ruddiness solid state laser R1-R6 of 5W; M=3 platform wavelength is that 532nm, output power are the green glow solid state laser G1-G3 of 1W; And k=4 platform wavelength is that 473nm, output power are the blue light solid state laser device B1-B4 of 1W.
The convergence apparatus of present embodiment comprises a plurality of convergent lens LR1-LRn, LG1-LGm and LB1-LBk, optical fiber FR1-FRn, FG1-FGm and FB1-FBk, and sleeve pipe 4 closes beam convergence lens 5 and single coupled fiber 6; Described laser instrument is positioned at a side of each self-corresponding convergent lens, the input end of described optical fiber is arranged on the corresponding convergent lens opposite side focus, sleeve pipe 4 is encapsulated into the output terminal of all optical fiber together, and be arranged at a described side of closing beam convergence lens 5, the described single coupled fiber 6 of opposite side focal point settings that closes beam convergence lens 5.
The equidirectional parallel placement of these solid state lasers, the light that each laser instrument sends is at first behind shaping of extender lens (not shown) and collimation lens (not shown) collimation, become directional light, incide convergent lens LR1-LR3 then respectively, on LG1-LG3 and the LB1-LB4, optical fiber FR1-FR3 is set on the focus of described convergent lens opposite side, the input end of FG1-FG3 and FB1-FB4, the end face of described optic fibre input end can be the plane, hemisphere face or circular conical surface, the output terminal of all optical fiber is encapsulated into together with sleeve pipe 4, and the white hybrid laser that obtains is as the light source of laser display; Also the output beam of the fibre bundle that sleeve pipe 4 can be encapsulated is coupled into single coupled fiber 6 after convergent lens 5 focuses on, and the mixed white light of single coupled fiber 6 outputs directly is used as the light source of laser display.
Embodiment 2
As shown in Figure 2, the light supply apparatus that is used for laser display, light source comprises the red laser light source of being made up of n red light semiconductor laser, represent with R1-Rn among Fig. 2, the green laser light source of forming by m green glow solid state laser, represent with G1-Gn among Fig. 2, with the blue laser light source of forming by k blue light solid state laser device, represent with B1-Bn among Fig. 2, n wherein, m, ratio between the k should be set according to the output power and the Show Color ratio requirement of each laser instrument, this is adequate to those skilled in the art, and in present embodiment, selecting for use n=112 to prop up wavelength is 635nm, output power is the red light semiconductor laser R1-R112 of 350mW; M=12 platform wavelength is that 532nm, output power are that green glow solid state laser G1-G12 and the k=3 platform wavelength of 1W is that 457nm, output power are the blue light solid state laser device B1-B3 of 3W, the placement that all walks abreast of all laser instruments.
The convergence apparatus of present embodiment, the a plurality of convergent lens LG1-LG12 and the LB1-LB3 that comprise corresponding described green glow of difference and blue light solid state laser device, the optical fiber FG1-FG12 and the FB1-FB3 of respectively corresponding described a plurality of convergent lenses, the single convergent lens 23 of corresponding red light semiconductor laser R1-R112, corresponding to the optical fiber FR of single convergent lens 23, and sleeve pipe 4; The input end of described optical fiber FR, FG1-FG12 and FB1-FB3 is arranged on the corresponding convergent lens opposite side focus, and sleeve pipe 4 is encapsulated into the output terminal of all optical fiber together.
Present embodiment also comprises an orthopedic systems and colimated light system.
Because semiconductor laser is very big with the angle of divergence (about 6 °-10 °) difference of horizontal direction in the angle of divergence (about 30 °-40 °) of vertical direction, so the orthopedic systems of semiconductor laser and colimated light system can be selected two globe lenss or a GRIN Lens, present embodiment is selected GRIN Lens 2 for use, as shown in Figure 2, the light that each red light semiconductor laser sends by each self-corresponding GRIN Lens shaping and collimation after single convergent lens 23 is coupled into single or multifiber FR, thereby realize the coupling of ruddiness.
The light that the solid state laser of blue light and green laser light source sends becomes directional light through extender lens and collimation lens (not shown), on the direction vertical with described parallel beam, convergent lens LG1-LG12 and LB1-LB3 are set, the input end of optical fiber is set on the focus of described convergent lens opposite side, the input end face of described optical fiber can be the plane, hemisphere face or circular conical surface, described directional light focuses on and is coupled into optical fiber through convergent lens in the focus of opposite side, the output terminal of the RGB three primary colours respectively being restrainted output optical fibre is encapsulated into together with sleeve pipe 4, and the mixture of white laser of outgoing is as the light source of laser display.
Embodiment 3
In the high power laser display light source that present embodiment provides, the RGB three-color light source is respectively by two parallel laser constitutions of placing, its emergent light is respectively p polarized light and s polarized light, as shown in Figure 3, R1 and R2 are that wavelength 660nm, output power are the red light semiconductor laser of 12W, G1 and G2 are that wavelength 532nm, output power are the green glow solid state laser of 3W, B1 and B2 are that wavelength 457nm, output power are the blue light solid state laser device of 2W, wherein, R1, G1 and B1 emitted laser are the P polarized light, and R2, G2 and B2 emitted laser are the S polarized light.
Among Fig. 3, close beam system and comprise that mainly first polarization beam splitter 11, second polarization beam splitter 12, the 3rd polarization beam splitter 13 and first close look mirror 9, second and close look mirror 10.
Polarization beam splitter (Polarizing Beam Splitter, be called for short PBS), by two right-angle prism combinations, on faying face, utilize the interference deposit PBS film of 45 degree Brewster corner conditions, the polarization direction P polarisation parallel with the polarization beam splitter plane of incidence can expeditely see through the PBS film, and the polarization direction S polarisation vertical with the polarization beam splitter plane of incidence then reflected by the PBS film.
The polarization direction of red laser R1 and R2 emission laser as shown in the figure, the P polarisation that R1 sends impinges perpendicularly on first polarization beam splitter 11, after transmission, do not change direction, the S polarisation that R2 sends vertically enters first polarization beam splitter 11 behind red mirror 14 deviations, after reflection, direction changes 90 degree, and the ruddiness that sends of R1 and R2 is coupled to output together thus; Described red mirror 14 can be plane mirror or total reflection prism.
The emergent light direction of green (light) laser G1 and G2 is parallel with the emergent light of described red laser, the polarization direction of green (light) laser G1 and G2 emission laser as shown in the figure, the P polarisation that G1 sends impinges perpendicularly on second polarization beam splitter 12, after transmission, do not change direction, the S polarisation that G2 sends vertically enters second polarization beam splitter 12 behind green glow catoptron 15 deviations, after reflection, direction changes 90 degree, and the green glow that sends of G1 and G2 is coupled to output together thus; Described green glow catoptron 15 can be plane mirror or total reflection prism.
The emergent light direction of blue laser B1 and B2 is perpendicular to the emergent light of described red laser, the polarization direction of blue laser B1 and B2 emission laser as shown in the figure, the P polarisation that B1 sends impinges perpendicularly on the 3rd polarization beam splitter 13, after transmission, do not change direction, the S polarisation that B2 sends vertically enters the 3rd polarization beam splitter 13 behind blu-ray reflection mirror 16 deviations, after reflection, direction changes 90 degree, and the blue light that sends of blue laser B1 and B2 is coupled to output together thus; Described blu-ray reflection mirror 16 can be plane mirror or total reflection prism.
Described first closes the transmission film that look mirror 9 surfaces are coated with blue light and the reflectance coating of 45 degree green glows, green glow after blue light after the described coupling and the coupling incides first from first both sides of closing the look mirror with 45 degree respectively and closes look mirror 9, obtain the coupled light beam of green glow and blue light, this coupled light beam is again through the second synthetic a branch of white light outgoing of ruddiness of closing after look mirror 10 and the described coupling, as the light source of laser display, described second surface of closing look mirror 10 is coated with the transmission film of ruddiness and the reflectance coating of 45 degree blue green lights.
Embodiment 4
As shown in Figure 4, present embodiment has removed catoptron on the basis of embodiment 3, adopt laser instrument R2, G2 are provided with R1, G1 are vertical with B1 respectively with B2, thereby make the s polarized light directly impinge perpendicularly in the corresponding polarized light separator, other parts are identical with embodiment 3.
Claims (11)
1. a light supply apparatus that is used for laser display comprises RGB tricolor laser light source and beam combination device, it is characterized in that, the LASER Light Source of every kind of primary colours is by at least two laser constitutions.
2. by the described light supply apparatus that is used for laser display of claim 1, it is characterized in that, described beam combination device comprises a plurality of convergent lenses and a plurality of optical fiber, the light beam that each laser instrument sends is coupled into optical fiber through each self-corresponding convergent lens, and the output terminal with whole optical fiber is packaged into a branch of fibre bundle then.
3. by the described light supply apparatus that is used for laser display of claim 2, it is characterized in that described beam combination device also comprises a sleeve pipe, be used for the output terminal of whole optical fiber is packaged into a branch of fibre bundle.
4. by the described light supply apparatus that is used for laser display of claim 1, it is characterized in that, described beam combination device comprises a plurality of convergent lenses and a plurality of optical fiber, the light beam that the laser instrument of arbitrary primary colours sends in the RGB three primary colours is coupled into optical fiber through a convergent lens, light beam that all the other primary colours laser instruments send is coupled into optical fiber through each self-corresponding convergent lens, and the output terminal of whole optical fiber is packaged into a branch of fibre bundle.
5. by claim 2, the 3 or 4 described light supply apparatuses that are used for laser display, it is characterized in that the input end face of described optical fiber is plane, hemisphere face or circular conical surface.
6. by the described light supply apparatus that is used for laser display of claim 1, it is characterized in that described beam combination device comprises also and close the beam convergence lens that the light ECDC beam convergence Lens Coupling that described fibre bundle sends enters output optical fibre.
7. by the described light supply apparatus that is used for laser display of claim 1, it is characterized in that the LASER Light Source of described every kind of primary colours is respectively by two laser constitutions that send p polarized light and s polarized light separately; Described beam combination device comprises first, second, third polarization beam splitter (PBS) at the laser instrument light-emitting window place that is arranged on every kind of primary colours, being arranged on first on the emitting light path of the second and the 3rd polarization beam splitter closes the look mirror and is arranged on the 3rd polarization beam splitter and described first closes second on the look mirror emitting light path and close the look mirror.
8. by the described light supply apparatus that is used for laser display of claim 1, it is characterized in that, between described laser instrument and beam combination device, also be provided with orthopedic systems and colimated light system.
9. by the described light supply apparatus that is used for laser display of claim 1, it is characterized in that described orthopedic systems is post lens or globe lens.
10. by the described light supply apparatus that is used for laser display of claim 1, it is characterized in that described colimated light system is a globe lens.
11., it is characterized in that described laser instrument is the laser instrument of same type or is dissimilar laser instruments by the described light supply apparatus that is used for laser display of claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620133986 CN200972539Y (en) | 2006-09-30 | 2006-09-30 | Light source device for laser display |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620133986 CN200972539Y (en) | 2006-09-30 | 2006-09-30 | Light source device for laser display |
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| CN200972539Y true CN200972539Y (en) | 2007-11-07 |
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| CN 200620133986 Expired - Fee Related CN200972539Y (en) | 2006-09-30 | 2006-09-30 | Light source device for laser display |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101594522B (en) * | 2008-05-28 | 2011-12-14 | 北京中视中科光电技术有限公司 | Laser cable display system |
| CN103050063A (en) * | 2012-12-24 | 2013-04-17 | 中国科学院西安光学精密机械研究所 | High-brightness traffic variable message sign and implementation method thereof |
| CN107910741A (en) * | 2017-12-27 | 2018-04-13 | 苏州伽蓝致远电子科技股份有限公司 | The multiple path laser of anti-veiling glare crosstalk |
| CN110671656A (en) * | 2019-11-13 | 2020-01-10 | 中国商用飞机有限责任公司 | Laser light source module and laser lamp comprising same |
| CN112444963A (en) * | 2019-08-30 | 2021-03-05 | 成都理想境界科技有限公司 | Light source driving circuit and display module |
| WO2021092783A1 (en) * | 2019-11-13 | 2021-05-20 | 中国商用飞机有限责任公司 | Laser light source module and laser lamp comprising said module |
-
2006
- 2006-09-30 CN CN 200620133986 patent/CN200972539Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101594522B (en) * | 2008-05-28 | 2011-12-14 | 北京中视中科光电技术有限公司 | Laser cable display system |
| CN103050063A (en) * | 2012-12-24 | 2013-04-17 | 中国科学院西安光学精密机械研究所 | High-brightness traffic variable message sign and implementation method thereof |
| CN103050063B (en) * | 2012-12-24 | 2015-10-21 | 中国科学院西安光学精密机械研究所 | High brightness traffic variable information board and its implementation |
| CN107910741A (en) * | 2017-12-27 | 2018-04-13 | 苏州伽蓝致远电子科技股份有限公司 | The multiple path laser of anti-veiling glare crosstalk |
| CN112444963A (en) * | 2019-08-30 | 2021-03-05 | 成都理想境界科技有限公司 | Light source driving circuit and display module |
| CN110671656A (en) * | 2019-11-13 | 2020-01-10 | 中国商用飞机有限责任公司 | Laser light source module and laser lamp comprising same |
| WO2021092783A1 (en) * | 2019-11-13 | 2021-05-20 | 中国商用飞机有限责任公司 | Laser light source module and laser lamp comprising said module |
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Legal Events
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| ASS | Succession or assignment of patent right |
Owner name: OPTOELECTRONICS TECHNOLOGY CO., LTD. OF BEIJING ZH Free format text: FORMER OWNER: INST OF PHOTOELECTRICS, C.A.S Effective date: 20131230 |
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| C41 | Transfer of patent application or patent right or utility model | ||
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Free format text: CORRECT: ADDRESS; FROM: 100080 HAIDIAN, BEIJING TO: 100094 HAIDIAN, BEIJING |
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Effective date of registration: 20131230 Address after: 100094, Beijing, Yongfeng Haidian District industrial base, No. 3 North Wing Road, modern enterprise accelerator B block, 4 floor Patentee after: Optoelectronics Technology Co., Ltd. Of Beijing Zhongshida & Chinese Academy Of Address before: 100080, No. 8, four street, Haidian District, Beijing Patentee before: Inst of Photoelectrics, C.A.S |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20071107 Termination date: 20140930 |
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| EXPY | Termination of patent right or utility model |