CN110989278A - Optical fiber conduction green light source and all-fiber laser backlight source device - Google Patents
Optical fiber conduction green light source and all-fiber laser backlight source device Download PDFInfo
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- CN110989278A CN110989278A CN201911212680.2A CN201911212680A CN110989278A CN 110989278 A CN110989278 A CN 110989278A CN 201911212680 A CN201911212680 A CN 201911212680A CN 110989278 A CN110989278 A CN 110989278A
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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
- G03B21/204—LED or laser light sources using secondary light emission, e.g. luminescence or fluorescence
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/26—Optical coupling means
- G02B6/32—Optical coupling means having lens focusing means positioned between opposed fibre ends
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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
- G03B21/16—Cooling; Preventing overheating
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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
- G03B21/208—Homogenising, shaping of the illumination light
Abstract
The invention discloses an optical fiber conduction green light source and an all-fiber laser backlight source device, wherein the green light source device comprises a first blue light laser, a first optical fiber, a fluorescence converter and a second optical fiber which are sequentially connected, the all-fiber laser backlight source device comprises the optical fiber conduction green light source device, a second blue light laser, a red light laser, a third optical fiber, a fourth optical fiber, a fifth optical fiber, an optical fiber combiner and a focusing collimating mirror, the second blue light laser is connected with the third optical fiber, the red light laser is connected with the fourth optical fiber, the second optical fiber, the third optical fiber and the fourth optical fiber of the green light source device are jointly combined and inserted into the optical fiber combiner, the fifth optical fiber is output from the other end of the optical fiber combiner, and the focusing collimating mirror is arranged. The green light source device improves the green light luminous intensity and the conversion efficiency, and the laser backlight source device has low production cost, good device heat management and high projection quality.
Description
Technical Field
The invention relates to the technical field of laser display, in particular to an optical fiber conduction green light source and an all-fiber laser backlight source device.
Background
The Laser Display Technology (LDT) has the significant advantages of rich colors, high saturation, high contrast, etc., and is widely regarded as a mainstream technology for future high-end Display such as large-screen projection, Laser television, digital cinema, mobile phone projection, etc.
The core of the laser display technology is two major parts, 1) the imaging technology; 2) light source technology. Among them, the core imaging device is being held by the united states and japan, and further research is needed by domestic researchers; among the light source technologies, the most satisfactory is the red, green and blue three primary colors Laser diode (3 LD) projection technology, for example, patent CN207216255U, which connects a red Laser, a blue Laser, and a green Laser with 3 optical fibers respectively, and then shapes the light by a shimming shaping module. However, due to technical bottlenecks, the development of the current high-brightness green light source is not satisfactory: the output power of the green LD module currently used in the 3LD technology is only 8W (NUGM03T, 520nm), which not only limits the green power, but also is very high in price (2200RMB), so that the price of the 3LD laser projector is high.
The blue LD laser fluorescent material is used for obtaining green light, and the green light, the blue LD and the red LD are combined together to form a white light double-color light source scheme, so that the projection product can not only ensure the improvement of brightness, but also reduce the cost input, and meet the requirements of consumer-grade markets. Most importantly, the price of the blue-light LD module (40W) is only 800RMB, and with the popularization and application of the laser illumination and display fields, the price of the LD module will continuously decrease, and the mode of obtaining green light by adopting the blue-light LD laser fluorescent material has become a hot point of research.
The emission spectrum of the Ce: LuAG phosphor determines the necessity as a fluorescent material. However, the light conversion ceramic has more advantages than the silica gel packaged fluorescent powder (wheel): 1) no carbonization phenomenon exists. 2) A mechanical device without motor control is needed; 3) the heat conductivity is higher, and the matching difficulty of the heat dissipation device is lower. Therefore, the green light source obtained by adopting the 'blue LD + Ce: LuAG ceramic' mode has higher luminous stability and stronger light conversion efficiency. However, at present, for example, document 1(Low Ethyl Yellow-Green Solid-State Light Generation by Laser-pumped LuAG: Ce Ceramic) and document 2(Excellent luminescence efficiency and high thermal stability of glass-in-Luagcermic for Laser-diode-pumped Green-emitting phosphor) and the like employ a high-concentration luminescent ion-doped lamellar Ceramic (>0.5 at%) for sufficiently absorbing blue Light of high power density. However, in this way, the penetration depth of blue light is small, heat is concentrated in a small area, the thermal focusing temperature of the light conversion material is extremely high, and the problems of temperature quenching and concentration quenching are generally existed, and finally luminescence quenching and even failure are caused.
Disclosure of Invention
The invention aims to provide a light source device for conducting green light by using an optical fiber.
The invention also aims to provide an all-fiber laser backlight source device based on the green light source device.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows: an optical fiber conduction green light source device comprises a first blue light laser, a first optical fiber, a fluorescence converter and a second optical fiber which are sequentially connected, wherein the fluorescence converter comprises a transparent fluorescence ceramic rod and a coupling focusing mirror, the coupling focusing mirror is positioned at one end of the transparent fluorescence ceramic rod connected with the second optical fiber, and the transparent fluorescence ceramic rod is cerium-doped lutetium aluminum garnet (Ce: Lu)3Al5O12,Ce:LuAG)，Ce3+The doping concentration is 0.01-0.50 at%, the transmittance of the transparent ceramic in a green light wave band is 60.0-80.0%, the transparent fluorescent ceramic rod is cylindrical, the radius of the end face is 0.5-6.0 mm, and the length is 6.0-50.0 mm.
Preferably, the coupling focusing lens is a free-form surface lens or a graded index lens.
Further, the fluorescence converter also comprises a double-color film, the double-color film is highly transparent at a wave band of 420-470 nm and highly reflective at a wave band of 500-600 nm, and the double-color film is positioned at one end of the transparent fluorescent ceramic rod connected with the first optical fiber.
The invention also provides an all-fiber laser backlight source device which comprises the optical fiber conduction green light source device, a blue laser device II, a red laser device, an optical fiber III, an optical fiber IV, an optical fiber V, an optical fiber beam combiner and a focusing collimating mirror, wherein the blue laser device II is connected with the optical fiber III, the red laser device is connected with the optical fiber IV, the optical fiber II, the optical fiber III and the optical fiber IV of the green light source device are jointly combined and inserted into the optical fiber beam combiner, the other end of the optical fiber beam combiner outputs the optical fiber V, and the focusing collimating mirror is arranged at the tail end of the optical fiber V.
A laser beam emitted by the first blue laser enters the fluorescence converter through the first optical fiber, the fluorescence converter converts the incident blue light into green light, and the green light enters the optical fiber coupler through the second optical fiber; laser beams emitted by the blue laser II are incident to the optical fiber coupler through the optical fiber III; laser beams emitted by the red laser are incident to the optical fiber coupler through the optical fiber four; the optical fiber coupler outputs the blue light, the green light and the red light to an optical fiber V; the light beam is shaped by the focusing collimating lens and then used for high-brightness laser projection.
Compared with the prior art, the invention has the following beneficial effects:
1. the optical fiber conduction green light source based on the transparent Ce: LuAG ceramic rod is better than a device adopting sheet Ce: LuAG ceramic in luminous intensity and conversion efficiency. Compared with the reflective Ce: LuAG ceramic, the transparent round rod-shaped ceramic is adopted as a light conversion material, the transmissive depth is deep, and blue light and green light can fully penetrate through a device, so that the further absorption of the blue light is increased, the utilization rate of the blue light is enhanced, and the luminous intensity and the conversion efficiency of the green light are improved.
2. An optical fiber type transparent ceramic device integrating light collection, conversion and light shaping, and guiding the transmission of light by utilizing the total internal reflection property of ceramic; and the green light coming out of the ceramic end face has extremely small optical expansion amount, and light spots with uniform illumination are formed, so that the design difficulty of a subsequent coupling focusing lens is reduced.
The "fiberization" of the Ce: LuAG ceramic can reduce the operating temperature and is beneficial to the thermal management of the device. The absorption coefficient of the material is indirectly reduced by increasing the length of the material, the temperature of the ceramic under unit volume can be reduced by the optical fiber, the heat management of the device is solved, and the fluorescence conversion efficiency is always stably kept at a higher level; compared with the sheet ceramic, the Ce LuAG rod-shaped ceramic has larger heat sink contact area and lower heat treatment difficulty.
4. Compared with a green LD module mode, the all-fiber laser projector backlight device based on the transparent Ce: LuAG ceramic rod effectively reduces the cost of a green light source;
5. in the whole projector backlight device, light beams are transmitted through optical fibers, and the light mixing function is further achieved by utilizing multiple reflections of the optical fibers; the light is transmitted in a long distance by the optical fiber, so that the projection module can be far away from the backlight module, and the projection quality is prevented from being reduced due to the influence of high temperature; and the device is simple and low in cost.
Drawings
FIG. 1 is a schematic diagram of an optical fiber transmission green light source device according to embodiment 1 of the present invention;
fig. 2 is an all-fiber laser backlight device of an optical fiber transmission green light source device according to embodiment 1 of the present invention;
FIG. 3 is a schematic diagram of an optical fiber transmission green light source device according to embodiment 2 of the present invention;
fig. 4 is an all-fiber laser backlight device of an optical fiber transmission green light source device according to embodiment 2 of the present invention;
in the figure, 10 blue lasers I, 101 blue lasers II, 102 red lasers, 20 optical fibers I, 201 optical fibers II, 202 optical fibers III, 203 optical fibers IV, 204 optical fibers V, 30 fluorescence converters, 301 transparent fluorescent ceramic rods, 302 coupling focusing lenses, 303 two-color films, 40 optical fiber beam combiners and 50 focusing collimating lenses.
Detailed Description
The invention is described in further detail below with reference to the figures and specific examples.
Example 1
An optical fiber conduction green light source device is shown in fig. 1 and comprises a first blue laser 10, a first optical fiber 20, a fluorescence converter 30 and a second optical fiber 201 which are sequentially connected, wherein the fluorescence converter 30 comprises a transparent fluorescent ceramic rod 301 and a coupling focusing mirror 302, and the coupling focusing mirror 302 is positioned at one end, connected with the second optical fiber 201, of the transparent fluorescent ceramic rod 301.
The transparent fluorescent ceramic rod 301 is cerium-doped lutetium aluminum garnet (Ce: Lu)3Al5O12Ce: LuAG) transparent ceramics, Ce3+The doping concentration is 0.01 at%, the transmittance of the transparent ceramic in a green light wave band is 60.0%, the transparent fluorescent ceramic rod 301 is cylindrical, the radius of the end face is 0.5mm, and the length is 6.0 mm. The preparation of transparent ceramics is referred to the preparation process disclosed in patent application CN 108516818A.
The coupling focusing mirror 302 is a free-form lens.
Example 2
An all-fiber laser backlight device is shown in fig. 2, and includes an optical fiber conduction green light source device, a second blue light laser 101, a red light laser 102, a third optical fiber 202, a fourth optical fiber 203, a fifth optical fiber 204, an optical fiber combiner 40, and a focusing collimating mirror 50 in embodiment 1, where the second blue light laser 101 is connected to the third optical fiber 202, the red light laser 102 is connected to the fourth optical fiber 203, the second optical fiber 201, the third optical fiber 202, and the fourth optical fiber 203 of the green light source device are jointly combined and inserted into the optical fiber combiner 40, the fifth optical fiber 204 is output from the other end of the optical fiber combiner 40, and the focusing collimating mirror 50 is disposed at the end of the fifth optical fiber 204.
When the output power of the first blue laser 10 is 2W, the operating temperature of the transparent fluorescent ceramic rod 301 is 70 ℃; the tail end of the LED can obtain 300lm green light, and the luminous efficiency is 150 lm/W; the dominant wavelength is at 520 nm; the divergence angle is 60 deg. to facilitate entry into fiber two 201 through coupling focusing mirror 302. The transparent fluorescent ceramic rod 301 is coated with a heat dissipation aluminum sheet with the inner diameter of 0.5mm, the outer diameter of 2.5mm and the length of 6.0mm to reduce the operating temperature and improve the luminous flux. When the output power of the first blue laser 10 is 10W, the operating temperature of the transparent fluorescent ceramic rod 301 is 200 ℃; 1300lm green light can be obtained at the tail end of the LED, and the luminous efficiency is 130 lm/W; the dominant wavelength is at 520 nm; the divergence angle is 60 deg. to facilitate entry into fiber two 201 through coupling focusing mirror 302.
The green light is incident to the optical fiber coupler 40 through the second optical fiber 201; the laser beam emitted by the second blue laser 101 is incident to the optical fiber coupler 40 through the third optical fiber 202; the laser beam emitted by the red laser 102 is incident to the optical fiber coupler 40 through the optical fiber four 203; the optical fiber coupler 40 outputs blue light, green light and red light to an optical fiber five 204; the beam is shaped by the focusing collimator 50 and used for high-brightness laser projection.
Example 3
An optical fiber conduction green light source device is shown in fig. 3 and comprises a first blue laser 10, a first optical fiber 20, a fluorescence converter 30 and a second optical fiber 201 which are sequentially connected, wherein the fluorescence converter 30 comprises a transparent fluorescence ceramic rod 301, a coupling focusing mirror 302 and a bicolor film 303, the coupling focusing mirror 302 is positioned at one end of the transparent fluorescence ceramic rod 301 connected with the second optical fiber 201, and the bicolor film 303 is positioned at one end of the transparent fluorescence ceramic rod 301 connected with the first optical fiber 20.
The transparent fluorescent ceramic rod 301 is cerium-doped lutetium aluminum garnet (Ce: Lu)3Al5O12Ce: LuAG) transparent ceramics, Ce3+The doping concentration is 0.50 at%, the transmittance of the transparent ceramic in a green light wave band is 80.0%, the transparent fluorescent ceramic rod 301 is cylindrical, the radius of the end face is 6.0mm, and the length is 50.0 mm. The preparation of transparent ceramics is referred to the preparation process disclosed in patent application CN 108516818A.
The coupling focusing mirror 302 is a graded index lens.
The double-color film 303 is high in transmittance at a wave band of 420-470 nm and high in reflectance at a wave band of 500-600 nm.
Example 4
An all-fiber laser backlight device is shown in fig. 4, and includes an optical fiber conduction green light source device, a second blue light laser 101, a red light laser 102, a third optical fiber 202, a fourth optical fiber 203, a fifth optical fiber 204, an optical fiber combiner 40, and a focusing collimating mirror 50 in embodiment 3, where the second blue light laser 101 is connected to the third optical fiber 202, the red light laser 102 is connected to the fourth optical fiber 203, the second optical fiber 201, the third optical fiber 202, and the fourth optical fiber 203 of the green light source device are jointly combined and inserted into the optical fiber combiner 40, the fifth optical fiber 204 is output from the other end of the optical fiber combiner 40, and the focusing collimating mirror 50 is disposed at the end of the fifth optical fiber 204.
The double-color mode 303 is used for enhancing the transmission amount of blue light and the reflection amount of green light, and when the output power of the first blue laser 10 is 2W, the operating temperature of the transparent fluorescent ceramic rod 301 is 70 ℃; the tail end of the LED can obtain 440lm green light, and the luminous efficiency is 220 lm/W; the dominant wavelength is at 520 nm; the divergence angle is 60 deg. to facilitate entry into fiber two 201 through coupling focusing mirror 302. The transparent fluorescent ceramic rod 301 is coated with a heat dissipation aluminum sheet with the inner diameter of 6.0mm, the outer diameter of 8.5mm and the length of 50.0mm to reduce the operating temperature and improve the luminous flux. When the output power of the first blue laser 10 is 10W, the operating temperature of the transparent fluorescent ceramic rod 301 is 160 ℃; 1800lm green light can be obtained at the tail end of the LED, and the luminous efficiency is 180 lm/W; the dominant wavelength is at 520 nm; the divergence angle is 60 deg. to facilitate entry into fiber two 201 through coupling focusing mirror 302.
The green light is incident to the optical fiber coupler 40 through the second optical fiber 201; the laser beam emitted by the second blue laser 101 is incident to the optical fiber coupler 40 through the third optical fiber 202; the laser beam emitted by the red laser 102 is incident to the optical fiber coupler 40 through the optical fiber four 203; the optical fiber coupler 40 outputs blue light, green light and red light to an optical fiber five 204; the beam is shaped by the focusing collimator 50 and used for high-brightness laser projection.
Example 5
An optical fiber conduction green light source device is shown in fig. 3 and comprises a first blue laser 10, a first optical fiber 20, a fluorescence converter 30 and a second optical fiber 201 which are sequentially connected, wherein the fluorescence converter 30 comprises a transparent fluorescence ceramic rod 301, a coupling focusing mirror 302 and a bicolor film 303, the coupling focusing mirror 302 is positioned at one end of the transparent fluorescence ceramic rod 301 connected with the second optical fiber 201, and the bicolor film 303 is positioned at one end of the transparent fluorescence ceramic rod 301 connected with the first optical fiber 20.
The transparent fluorescent ceramic rod 301 is cerium-doped lutetium aluminum garnet (Ce: Lu)3Al5O12Ce: LuAG) transparent ceramics, Ce3+The doping concentration is 0.01 at%, the transmittance of the transparent ceramic in a green light wave band is 80.0%, the transparent fluorescent ceramic rod 301 is cylindrical, the radius of the end face is 1.0mm, and the length is 20.0 mm. The preparation of transparent ceramics is referred to the preparation process disclosed in patent application CN 108516818A.
The coupling focusing mirror 302 is a free-form lens.
The double-color film 303 is high in transmittance at a wave band of 420-470 nm and high in reflectance at a wave band of 500-600 nm.
Example 6
An all-fiber laser backlight device is shown in fig. 4, and includes an optical fiber conduction green light source device, a second blue light laser 101, a red light laser 102, a third optical fiber 202, a fourth optical fiber 203, a fifth optical fiber 204, an optical fiber combiner 40, and a focusing collimating mirror 50 in embodiment 5, where the second blue light laser 101 is connected to the third optical fiber 202, the red light laser 102 is connected to the fourth optical fiber 203, the second optical fiber 201, the third optical fiber 202, and the fourth optical fiber 203 of the green light source device are jointly combined and inserted into the optical fiber combiner 40, the fifth optical fiber 204 is output from the other end of the optical fiber combiner 40, and the focusing collimating mirror 50 is disposed at the end of the fifth optical fiber 204.
The double-color mode 303 is used for enhancing the transmission amount of blue light and the reflection amount of green light, and when the output power of the first blue laser 10 is 2W, the operating temperature of the transparent fluorescent ceramic rod 301 is 55 ℃; 560lm green light can be obtained at the tail end of the LED, and the luminous efficiency is 280 lm/W; the dominant wavelength is at 520 nm; the divergence angle is 60 deg. to facilitate entry into fiber two 201 through coupling focusing mirror 302. The transparent fluorescent ceramic rod 301 is coated with a heat dissipation aluminum sheet with the inner diameter of 1.0mm, the outer diameter of 3.5mm and the length of 20.0mm to reduce the operating temperature and improve the luminous flux. When the output power of the first blue laser 10 is 10W, the operating temperature of the transparent fluorescent ceramic rod 301 is 120 ℃; 2600lm green light can be obtained at the end of the fluorescent material, and the luminous efficiency is 260 lm/W; the dominant wavelength is at 520 nm; the divergence angle is 60 deg. to facilitate entry into fiber two 201 through coupling focusing mirror 302.
The green light is incident to the optical fiber coupler 40 through the second optical fiber 201; the laser beam emitted by the second blue laser 101 is incident to the optical fiber coupler 40 through the third optical fiber 202; the laser beam emitted by the red laser 102 is incident to the optical fiber coupler 40 through the optical fiber four 203; the optical fiber coupler 40 outputs blue light, green light and red light to an optical fiber five 204; the beam is shaped by the focusing collimator 50 and used for high-brightness laser projection.
Comparative example
Reference patent CN108516818A preparation of Ce: LuAG transparent fluorescent ceramic, Ce3+The doping concentration is 0.50 at%, the transmittance of the transparent ceramic in a green light wave band is 80.0%, the transparent fluorescent ceramic is in a disc shape, the diameter is 16.0mm, and the thickness is 1.0 mm. When the output power of the first blue laser 10 is 2W, the operating temperature of the transparent fluorescent ceramic rod 301 is 70 ℃, 440lm green light can be obtained, and the luminous efficiency is 220 lm/W; the dominant wavelength is at 520 nm. The divergence angle is too large, and only a few light beams can be shaped by the coupling focusing mirror to enter the optical fiber, which is not suitable for the backlight device of the laser projector provided by the application.
Claims (4)
1. An optical fiber conduction green light source device, characterized in that: including the blue laser that connects gradually one (10), optic fibre one (20), fluorescence converter (30) and optic fibre two (201), fluorescence converter (30) are including transparent fluorescence ceramic stick (301) and coupling focusing mirror (302), coupling focusing mirror (302) are located transparent fluorescence ceramic stick (301) are connected the one end of optic fibre two (201), wherein, transparent fluorescence ceramic stick (301) are cerium-doped lutetium aluminium garnet, Ce aluminium garnet, and Ce is mixed3+The doping concentration is 0.01-0.50 at%, the transmittance of the transparent ceramic in a green light wave band is 60.0-80.0%, the transparent fluorescent ceramic rod (301) is cylindrical, the radius of the end face is 0.5-6.0 mm, and the length is 6.0-50.0 mm.
2. The apparatus of claim 1, wherein: the coupling focusing lens (302) is a free-form surface lens or a graded index lens.
3. The apparatus of claim 1, wherein: the fluorescence converter (30) further comprises a double-color film (303), the double-color film (303) is highly transparent at a wave band of 420-470 nm and highly reflective at a wave band of 500-600 nm, and the double-color film (303) is located at one end, connected with the first optical fiber (20), of the transparent fluorescent ceramic rod (301).
4. An all-fiber laser backlight device, characterized in that: the device comprises the optical fiber conduction green light source device of any one of claims 1 to 3, a blue laser two (101), a red laser (102), an optical fiber three (202), an optical fiber four (203), an optical fiber five (204), an optical fiber combiner (40) and a focusing collimating mirror (50), wherein the blue laser two (101) is connected with the optical fiber three (202), the red laser (102) is connected with the optical fiber four (203), the optical fiber two (201), the optical fiber three (202) and the optical fiber four (203) of the green light source device are jointly combined and inserted into the optical fiber combiner (40), the other end of the optical fiber combiner (40) outputs the optical fiber five (204), and the focusing collimating mirror (50) is arranged at the tail end of the optical fiber five (204).
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112594591A (en) * | 2020-12-15 | 2021-04-02 | 新沂市锡沂高新材料产业技术研究院有限公司 | Laser car lamp system based on optical fiber conduction |
| CN113064320A (en) * | 2021-02-25 | 2021-07-02 | 江苏师范大学 | Light source system for improving green light brightness |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203813199U (en) * | 2014-02-12 | 2014-09-03 | 南京长青激光科技有限责任公司 | Laser capable of outputting white light |
| CN205427419U (en) * | 2015-12-10 | 2016-08-03 | 北京天影视讯激光技术有限公司 | White optical module of laser and laser lamp -house , projection equipment , Projection equipment , laser television , image device , display device , laser lamp |
| CN206727417U (en) * | 2017-03-02 | 2017-12-08 | 孙雷 | A kind of blue semiconductor laser excites Ce:The laser illumination system of YAG crystal |
| CN108516818A (en) * | 2018-05-25 | 2018-09-11 | 江苏师范大学 | A method of YAG crystalline ceramics is prepared based on improved Isobam gel rubber systems |
| CN109519718A (en) * | 2017-09-18 | 2019-03-26 | 北京德瑞工贸有限公司 | A kind of high coloring laser lighting system of non-excited fluophor |
-
2019
- 2019-12-02 CN CN201911212680.2A patent/CN110989278A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203813199U (en) * | 2014-02-12 | 2014-09-03 | 南京长青激光科技有限责任公司 | Laser capable of outputting white light |
| CN205427419U (en) * | 2015-12-10 | 2016-08-03 | 北京天影视讯激光技术有限公司 | White optical module of laser and laser lamp -house , projection equipment , Projection equipment , laser television , image device , display device , laser lamp |
| CN206727417U (en) * | 2017-03-02 | 2017-12-08 | 孙雷 | A kind of blue semiconductor laser excites Ce:The laser illumination system of YAG crystal |
| CN109519718A (en) * | 2017-09-18 | 2019-03-26 | 北京德瑞工贸有限公司 | A kind of high coloring laser lighting system of non-excited fluophor |
| CN108516818A (en) * | 2018-05-25 | 2018-09-11 | 江苏师范大学 | A method of YAG crystalline ceramics is prepared based on improved Isobam gel rubber systems |
Non-Patent Citations (3)
| Title |
|---|
| 康健 张乐: "激光白光光源及其光学系统解析", 《应用光学》 * |
| 康健 张乐: "高流明密度激光照明用光转换材料", 《化学进展》 * |
| 张乐: "Nd:YAG激光透明陶瓷的研究进展", 《材料导报》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112594591A (en) * | 2020-12-15 | 2021-04-02 | 新沂市锡沂高新材料产业技术研究院有限公司 | Laser car lamp system based on optical fiber conduction |
| CN113064320A (en) * | 2021-02-25 | 2021-07-02 | 江苏师范大学 | Light source system for improving green light brightness |
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Application publication date: 20200410 |