CN102929087A - High-efficiency mixed light source for miniature illumination - Google Patents
High-efficiency mixed light source for miniature illumination Download PDFInfo
- Publication number
- CN102929087A CN102929087A CN2012104287764A CN201210428776A CN102929087A CN 102929087 A CN102929087 A CN 102929087A CN 2012104287764 A CN2012104287764 A CN 2012104287764A CN 201210428776 A CN201210428776 A CN 201210428776A CN 102929087 A CN102929087 A CN 102929087A
- Authority
- CN
- China
- Prior art keywords
- light source
- light
- lens group
- dpl
- laser
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Landscapes
- Projection Apparatus (AREA)
Abstract
The invention discloses a high-efficiency mixed light source for miniature illumination. The high-efficiency mixed light source comprises a diode pumped solid-state laser (DPL) light source, a DPL shaping lens group, a laser diode (LD) light source, an LD shaping lens group, a light converging mirror A, a light emitting diode (LED) light source, an LED shaping lens group and a light converging mirror B, wherein the DPL light source transmits green laser and outputs the green laser to the light converging mirror A through the DPL shaping lens group; the LD light source transmits red laser and outputs the red laser to the light converging mirror A through the LD shaping lens group; the green laser and red laser in the light converging mirror A are converged and superposed and are output to the light converging mirror B; the LED light source transmits blue laser and outputs the blue laser to the light converging mirror B through the LED shaping lens group; and the light output by the light converging mirror A in the light converging mirror B and the blue laser are converged and superposed, and the light is output. According to the high-efficiency mixed light source, the blue light ratio is small, a single single-color LED is used for illumination, and compared with the traditional LED array, the high-efficiency mixed light source has the advantages that the size is small under the condition that the micro projection illumination requirement is met, and meanwhile the radiating problem in a miniature illumination system is solved.
Description
Technical field
The present invention relates to a kind of efficient hybrid light source for micro lighting, belong to the lighting source technical field.
Background technology
Along with the miniaturization of present all kinds of digital products and people to display device performance and portable improving constantly of requiring, the micro lighting system has become the study hotspot of E-consumer behavior under the condition that semiconductor technology develops rapidly.The bulb source of at present maturing can not satisfy the demand of miniaturization far away, and in order to overcome this shortcoming, technology and structure that the LASER Light Source of use size less is made micro lighting are obtaining active development.
DPL(Diode Pumped Solid-state Laser, diode pumped solid state laser) as a kind of solid state laser take semiconductor laser as pumping source, have advantage: 1) longevity of service, 2) the low-power consumption high conversion efficiency, 3) advantage such as volume is little.At present, the DPL laser instrument luminous point size 1mm * 1mm of relevant company moulding, its optical extend only has 7.84 * 10
-7Mmsteradin.
LD(Laser Diode, laser diode) as at present a kind of very ripe laser diode, have advantage: 1) linear polarization is good, 2) high brightness point is luminous, 3) have desirable spectral distribution, 4) small volume, very suitable micro lighting light source.
Continuous progress along with science and technology, LED(light emitting diode, light emitting diode) light source has become main stream light sources of today from originally emerging light source, and the luminescent spectrum of each wave band, especially three primary colors LED light source is very narrow, monochromaticity is good, can produce large colour gamut.And the life-span can reach 100,000 hours.But the efficient of its per unit optical extend lower (especially need in the Projection Display color matching energy efficiency of green LED of energy maximum low) is limiting its application.
Be foreseeable ideal scheme with the laser three primary light source as the micro lighting system of lighting source, but the laser product on the society is still immature at present, the LASER Light Source of blue wave band especially, not only the kind rareness is rare, and expensive.Therefore, hybrid light source is very desirable as a kind of micro lighting scheme, and the current stage has actual application value.
The gordian technique of miniature mixed high-efficient lighting source is to select wave band and the shaping lens group of three primary colours corresponding light source, to finish the in proportion stack of three primary colours.
Find that by investigation existing micro lighting light source mainly contains two schemes, the one, adopt the three-color LED light source; The 2nd, adopt LASER Light Source.Because the LED energy efficiency is low, reach and use illumination level and must adopt led array, not only volume is large, and heat dissipation problem is difficult to solve, and itself color restoration capability is poor, can not satisfy the demand of the digital products such as projector; And LASER Light Source also exists the cost height, the problems such as industrialization difficulty; These problems are limiting the development of micro lighting light source.
Summary of the invention
The objective of the invention is in order to address the above problem, propose a kind of efficient hybrid light source for micro lighting, DPL is as the green primary light source, and LD is as the red primary light source, LED is as the blue primary light source, mix the light-source system that miniature mixed high-efficient illumination is finished in stack by shaping, this light-source system size is less, and spectrum is selected rationally, optical field distribution is even after the stack, satisfy the lighting demand of the application scenarios such as micro projection, and thermal value is little, low cost of manufacture.
A kind of efficient hybrid light source for micro lighting is characterized in that, comprises DPL light source, DPL shaping lens group, LD light source, LD shaping lens group, closes light microscopic A, led light source, LED shaping lens group and closes light microscopic B;
The DPL light source is the green primary light source, transmitting green laser, DPL shaping lens group comprise beam expanding lens and collimating mirror A, and beam expanding lens is close to the output face of DPL light source and is placed, after collimating mirror A was placed on beam expanding lens, green laser expanded to enter after the shaping through the DPL shaping lens group and closes light microscopic A;
The LD light source is placed with the DPL light source is vertical, the LD light source is the red primary light source, transmitting red laser beam, the LD shaping lens group comprises cylindrical mirror and collimating mirror B, cylindrical mirror is close to the output face of LD light source and is placed, after collimating mirror B is placed on cylindrical mirror, enters behind the red laser process LD shaping lens group compression shaping and close light microscopic A;
The green laser and the red laser that close among the light microscopic A converge stack, export to close light microscopic B;
Led light source is placed with the DPL light source is vertical, led light source is the blue primary light source, the emission blue laser, and the LED shaping lens group is the shaping diaphragm, after the shaping diaphragm is placed on the led light source output face, enters behind the blue laser process LED shaping lens group compression shaping and close light microscopic B;
The light and the blue laser that close light microscopic B neutralizing light mirror A output converge stack, and output light is the even white illumination light that satisfies micro lighting.
The invention has the advantages that:
(1) red primary light and green primary gloss throw light on LASER Light Source, and illumination efficiency is high;
(2) the blue light ratio is less in the micro lighting, therefore adopts single monochromatic LED illumination, is different from traditional led array, is satisfying under the micro projection lighting demand prerequisite, and small volume has solved the heat dissipation problem in the micro lighting system simultaneously;
(3) for the beam characteristics of Different Light, adopt different shaping lens group;
(4) only adopt the light source of LED or LD with respect to tradition, the present invention more considers actual demand, and higher illumination efficiency and brightness can be provided, and volume is less.
Description of drawings
Fig. 1 is structural representation of the present invention;
Fig. 2 is DPL shaping lens group structural representation of the present invention;
Fig. 3 is LD shaping lens group structural representation of the present invention;
Among the figure:
1-DPL light source, 2-DPL shaping lens group, 3-LD light source
4-LD shaping lens group 5-close light microscopic A 6-led light source
7-LED shaping lens group 8-close light microscopic B 9-beam expanding lens
10-collimating mirror A, 11-cylindrical mirror, 12-collimating mirror B
Embodiment
The present invention is described in further detail below in conjunction with drawings and Examples.
The present invention is a kind of efficient hybrid light source for micro lighting, as shown in Figure 1, comprises DPL light source 1, DPL shaping lens group 2, LD light source 3, LD shaping lens group 4, closes light microscopic A5, led light source 6, LED shaping lens group 7 and closes light microscopic B8.
DPL light source 1 is the green primary light source, transmitting green laser, DPL shaping lens group 2 as shown in Figure 2, be comprised of two lens, comprise a slice beam expanding lens 9 and a slice collimating mirror A10, beam expanding lens 9 is close to 1 output face of DPL light source and is placed, after collimating mirror A10 is placed on beam expanding lens 9, green laser is by beam expanding lens 9 and collimating mirror A10, finishes the expanding and collimating of DPL light source 1 transmitting green laser, and green laser expands to enter after the shaping through DPL shaping lens group 2 and closes light microscopic A5.
The green laser and the red laser that close among the light microscopic A5 converge stack, export to close light microscopic B8.
Led light source 6 and the 1 vertical placement of DPL light source, led light source 6 is the blue primary light source, the emission blue laser, LED shaping lens group 7 is comprised of a shaping diaphragm, after the shaping diaphragm is placed on led light source 6 output faces, blue laser is finished compression and collimation to led light source 6 emission blue lasers by the shaping diaphragm, enters behind blue laser process LED shaping lens group 7 compression shapings and closes light microscopic B8.
The light and the blue laser that close light microscopic B8 neutralizing light mirror A5 output converge stack, and output light is the even white illumination light that satisfies micro lighting.
Wherein, described DPL light source 1 is single monochrome (redness) DPL light source;
Wherein, described LD light source 3 is single monochrome (green) LD light source;
Wherein, described led light source 6 is single monochrome (blueness) led light source.
The illumination of traditional bulb source exists the volume problem that can't overcome, and the blue primary LASER Light Source is expensive in the LASER Light Source illumination, and LED can't reach requirement as a kind of alternative light source its energy efficiency present stage.And stipulate according to the 1931CIE-RGB of specified standard colorimetry system of International Commission on Illumination, when mating the white light of equal energy with the RGB three primary colors, the luminance brightness of the unit tristimulus values of R, G, B is 1.00:4.59:0.06, therefore hypothesis needs illumination screen area A, the screen illumination that requires is E, the total capacity usage ratio of supposing the system is P, and luminous flux that then can the outgoing of reckoning place three primary colors light source is respectively:
Wherein: Φ
RBe red primary light source emergent light flux, Φ
GBe blue primary light source emergent light flux, Φ
BBe the green primary luminous flux of light source, EA is the required total luminous flux of screen illumination.
Therefore, adopt DPL light source 1 as the green primary light source, LD light source 3 is as the red primary light source, and monochromatic single led light source 6 is as blue primary light source minimum to the luminous flux demand in the illuminator, but not the employing array has solved heat dissipation problem in the micro lighting system.
DPL light source 1 adopts typical end-pumped laser among the present invention, wavelength is 532nm, and luminescence efficiency is 600lm/W, and DPL shaping lens group 2 optical axises overlap fully with systematic optical axis, shaping lens group is comprised of beam expanding lens 9 and collimating mirror A10, and both limit width and the angle of outgoing beam.
The led light source 6 encapsulation refractive indexes that adopt among the present invention are 1.56, wavelength is 435nm, and luminescence efficiency is 30lm/W, is different from led array pattern commonly used, native system adopts monochromatic single led light source, and LED shaping lens group 7 adopts aperture diaphragm restriction outgoing beam width.
Neutralizing light mirror A5 of the present invention, close light microscopic B6 and adopt microlens array or integrating rod.
Claims (9)
1. an efficient hybrid light source that is used for micro lighting is characterized in that, comprises DPL light source, DPL shaping lens group, LD light source, LD shaping lens group, closes light microscopic A, led light source, LED shaping lens group and closes light microscopic B;
The DPL light source is the green primary light source, transmitting green laser, DPL shaping lens group comprise beam expanding lens and collimating mirror A, and beam expanding lens is close to the output face of DPL light source and is placed, after collimating mirror A was placed on beam expanding lens, green laser expanded to enter after the shaping through the DPL shaping lens group and closes light microscopic A;
The LD light source is placed with the DPL light source is vertical, the LD light source is the red primary light source, transmitting red laser beam, the LD shaping lens group comprises cylindrical mirror and collimating mirror B, cylindrical mirror is close to the output face of LD light source and is placed, after collimating mirror B is placed on cylindrical mirror, enters behind the red laser process LD shaping lens group compression shaping and close light microscopic A;
The green laser and the red laser that close among the light microscopic A converge stack, export to close light microscopic B;
Led light source is placed with the DPL light source is vertical, led light source is the blue primary light source, the emission blue laser, and the LED shaping lens group is the shaping diaphragm, after the shaping diaphragm is placed on the led light source output face, enters behind the blue laser process LED shaping lens group compression shaping and close light microscopic B;
The light and the blue laser that close light microscopic B neutralizing light mirror A output converge stack, and output light is the even white illumination light that satisfies micro lighting.
2. a kind of efficient hybrid light source for micro lighting according to claim 1 is characterized in that the luminous flux of described DPL light source, LD light source, led light source outgoing is respectively:
Wherein: A is for needing the illumination screen area, and E is the screen illumination that requires, and P is the total capacity usage ratio of light-source system, Φ
RBe red primary light source emergent light flux, Φ
GBe blue primary light source emergent light flux, Φ
BBe the green primary luminous flux of light source, EA is the required total luminous flux of screen illumination.
3. a kind of efficient hybrid light source for micro lighting according to claim 1 is characterized in that, described DPL light source adopts end-pumped laser, and wavelength is 532nm, and luminescence efficiency is 600lm/W.
4. a kind of efficient hybrid light source for micro lighting according to claim 1 is characterized in that the optical axis of described DPL shaping lens group and the optical axis coincidence of light source.
5. a kind of efficient hybrid light source for micro lighting according to claim 1 is characterized in that, described LD light source adopts quantum-well diode laser, and wavelength is 635nm, and luminescence efficiency is 300lm/W.
6. a kind of efficient hybrid light source for micro lighting according to claim 1 is characterized in that, the angle of divergence of described LD shaping lens group central column face mirror compression LD light source y direction.
7. a kind of efficient hybrid light source for micro lighting according to claim 1 is characterized in that, described led light source encapsulation refractive index is 1.56, and wavelength is 435nm, and luminescence efficiency is 30lm/W.
8. a kind of efficient hybrid light source for micro lighting according to claim 1 is characterized in that, described LED shaping lens group adopts aperture diaphragm restriction outgoing beam width.
9. a kind of efficient hybrid light source for micro lighting according to claim 1 is characterized in that, describedly closes light microscopic A, closes light microscopic B and adopt microlens array or integrating rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104287764A CN102929087A (en) | 2012-10-31 | 2012-10-31 | High-efficiency mixed light source for miniature illumination |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104287764A CN102929087A (en) | 2012-10-31 | 2012-10-31 | High-efficiency mixed light source for miniature illumination |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102929087A true CN102929087A (en) | 2013-02-13 |
Family
ID=47643921
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012104287764A Pending CN102929087A (en) | 2012-10-31 | 2012-10-31 | High-efficiency mixed light source for miniature illumination |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102929087A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017101773A1 (en) * | 2015-12-16 | 2017-06-22 | 深圳市绎立锐光科技开发有限公司 | Light source system and illumination system |
| WO2018045604A1 (en) * | 2016-09-07 | 2018-03-15 | 广州市巴卡研玻璃制品有限责任公司 | Novel light source system that mixes colors of laser and led lights |
| WO2018214283A1 (en) * | 2017-05-24 | 2018-11-29 | 深圳市光峰光电技术有限公司 | Laser lighting device and projection system using same |
| CN113057592A (en) * | 2021-03-18 | 2021-07-02 | 南京诺源医疗器械有限公司 | Light source mixing device and mixing method |
| CN115185095A (en) * | 2022-09-01 | 2022-10-14 | 应轲臻 | Multispectral laser lighting system |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201163332Y (en) * | 2008-02-18 | 2008-12-10 | 上海高意激光技术有限公司 | Light source equipment for laser projection display |
| KR20090060681A (en) * | 2007-12-10 | 2009-06-15 | 주식회사 하이닉스반도체 | Circuit for discharging core voltage and semiconductor memory apparatus using the same |
-
2012
- 2012-10-31 CN CN2012104287764A patent/CN102929087A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20090060681A (en) * | 2007-12-10 | 2009-06-15 | 주식회사 하이닉스반도체 | Circuit for discharging core voltage and semiconductor memory apparatus using the same |
| CN201163332Y (en) * | 2008-02-18 | 2008-12-10 | 上海高意激光技术有限公司 | Light source equipment for laser projection display |
Non-Patent Citations (1)
| Title |
|---|
| 孙鸣捷: "微型投影显示系统中混合光源照明技术和激光散斑消除技术的研究", 《中国博士学位论文全文数据库（电子期刊）》, 15 August 2011 (2011-08-15) * |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017101773A1 (en) * | 2015-12-16 | 2017-06-22 | 深圳市绎立锐光科技开发有限公司 | Light source system and illumination system |
| WO2018045604A1 (en) * | 2016-09-07 | 2018-03-15 | 广州市巴卡研玻璃制品有限责任公司 | Novel light source system that mixes colors of laser and led lights |
| WO2018214283A1 (en) * | 2017-05-24 | 2018-11-29 | 深圳市光峰光电技术有限公司 | Laser lighting device and projection system using same |
| CN108957924A (en) * | 2017-05-24 | 2018-12-07 | 深圳市光峰光电技术有限公司 | Laser illuminator set and the optical projection system for using the equipment |
| US11307487B2 (en) | 2017-05-24 | 2022-04-19 | Appotronics Corporation Limited | Laser illumination device and projection system using the same |
| CN113057592A (en) * | 2021-03-18 | 2021-07-02 | 南京诺源医疗器械有限公司 | Light source mixing device and mixing method |
| CN113057592B (en) * | 2021-03-18 | 2022-11-01 | 南京诺源医疗器械有限公司 | Light source mixing device and mixing method |
| CN115185095A (en) * | 2022-09-01 | 2022-10-14 | 应轲臻 | Multispectral laser lighting system |
| CN115185095B (en) * | 2022-09-01 | 2024-04-30 | 应轲臻 | Multispectral laser lighting system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104798203B (en) | Using the white light source of the laser diode based on group III-nitride of pumped phosphor | |
| RU2444813C2 (en) | Light-emitting diode module, light-emitting diode source and light-emitting diode lamp for energy-efficient generation of white light | |
| US11520156B2 (en) | Multi-channels high brightness light engine apparatus | |
| CN103261964B (en) | Lamp optical system and comprise its projection display apparatus | |
| CN106523955A (en) | Illuminating system and projecting device | |
| EP1024539A2 (en) | Solid state based illumination source utilizing dichroic reflectors | |
| CN105204279A (en) | Light source system and projection equipment | |
| CN205301793U (en) | Illuminating system | |
| CN102929087A (en) | High-efficiency mixed light source for miniature illumination | |
| CN201886268U (en) | Laser light supply apparatus used for projection display | |
| CN101641801B (en) | Assembly and method for generating mixed light | |
| JP2016224304A (en) | Light source device, projection type display device and light generation method | |
| TWI610457B (en) | White light source device | |
| CN106462041B (en) | Image display device and image generating method | |
| CN102063002B (en) | Color regulating plate for solid light source projector | |
| CN102073139A (en) | LED (Light Emitting Diode) lighting source and projector | |
| CN202837792U (en) | Laser source system | |
| US20220229353A1 (en) | Large color gamut laser light source system integrated by notch combining beam | |
| CN108962183A (en) | A kind of primary colours optimization method that multiple bases are shown and display device | |
| Hu et al. | Laser and phosphor hybrid source for projection display | |
| CN110870073A (en) | Color projector with two emissive displays | |
| WO2019024362A1 (en) | Light source | |
| CN104683775A (en) | Blue light synthesis method and system | |
| WO2020135292A1 (en) | Display device and control method therefor | |
| CN113204159A (en) | Red and green light enhanced laser light source device and wavelength conversion layer material |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130213 |