CN102073139A - LED (Light Emitting Diode) lighting source and projector - Google Patents
LED (Light Emitting Diode) lighting source and projector Download PDFInfo
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- CN102073139A CN102073139A CN201010562302XA CN201010562302A CN102073139A CN 102073139 A CN102073139 A CN 102073139A CN 201010562302X A CN201010562302X A CN 201010562302XA CN 201010562302 A CN201010562302 A CN 201010562302A CN 102073139 A CN102073139 A CN 102073139A
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Abstract
The invention relates to an LED (Light Emitting Diode) lighting source which can be used for a projection system. The lighting source comprises two or more than two LED lighting source modules, and a reflecting mirror assembly which is used for synthesizing the emergent light of each LED lighting source module into a combination light beam. In the LED lighting source provided by the invention, a plurality of LED lighting source modules are arranged, and the reflecting mirror assembly is used for synthesizing the emergent light of each LED lighting source module into the combination light beam for a projector to use, thus the brightness of the lighting source is improved. In addition, if the LED in one color of the LED lighting source can not work as normal, although the color output of the lighting source module on which the LED in one color is arranged is influenced, other light source modules still work normally at the moment, so that the integral color output of the lighting source is not influenced greatly.
Description
Technical field
The present invention relates to be used for the lighting source of optical projection system, in particular, the present invention relates to the LED lighting source and have the projector of this light source.
Background technology
Along with the development of LED technology and popularize, the also more and more general employing LED of shadow casting technique is as light source, to reach purposes such as energy-saving and environmental protection and long-life.The brightness of light source is depended in the brightness of projector to a great extent.And at present single led brightness has been difficult to promote significantly owing to be subjected to the restriction of factors such as chip power and heat radiation.
Though the light source that a plurality of LED modules with different colors are synthetic can promote the brightness of projector to a certain extent.But because the restriction of this led light source modular structure form, and the influence of aspect such as led chip heat radiation, the homochromy led chip of a plurality of high brightness can't be merged and be encapsulated on the same substrate.The led light source module that uses in the therefore present projector only adopts each a slice of monochromatic LED mostly, in actual applications, if certain color LED damages, will cause picture to lack look, and projector can't normally use.
Therefore provide that a kind of brightness is higher, technical matters that needs to be resolved hurrily of the LED lighting source of better reliability.
Summary of the invention
The technical matters that the present invention solves provides that a kind of brightness is higher, the LED lighting source of better reliability, makes its brightness that not only can improve light source, can also avoid lacking look because of certain LED in the light source damages the picture that causes.
For solving the problems of the technologies described above, the technical solution used in the present invention is:
A kind of LED lighting source, this light source comprises: two or more led light source modules, and the reflector group that is used for the emergent light of each led light source module is synthesized a beam combination.The led light source module is meant by multiple color LED being closed the light source that light forms output light.For example pass through the white LED light source module of three-primary color LED synthesize white light.
As one of improving: this LED lighting source comprises two led light source modules, and described reflector group is two corresponding with these two led light source modules respectively catoptrons.
As two of improvement: described two led light source module outgoing directions of light are opposite, two catoptrons of described reflector group be the mirror image symmetry.
As three of improvement: this LED lighting source also comprises and is used for collector lens group that this beam combination is assembled.
As four of improvement: each led light source module comprises and is used to provide three groups of primary-color LED modules of approximate directional light and is used for dichroic mirror group with the light compositing white light of each primary-color LED module.Three groups of primary-color LED modules are meant ruddiness, blue light and green light LED module.These three kinds of light microscopic dichroic mirror combined light can obtain white light.
As five of improvement: described dichroic mirror comprises and is used for that two groups of primary-color LED modules are wherein closed first dichroic mirror of light and is used for second dichroic mirror with the light compositing white light that closes light and the 3rd group of primary-color LED module of these two groups of primary-color LED modules.
As six of improvement: each is organized the primary-color LED module and comprises corresponding primary-color LED and collimating mirror group.The collimating mirror group that each primary-color LED module is adopted can adopt identical mirror group, also can be different mirror groups, and can adopt aspheric mirror better to satisfy the design requirement of system.
As seven of improvement: this LED lighting source also comprises and is respectively applied for some adjustment lens of the emergent light of each led light source module being adjusted compression.
As eight of improvement: its pairing led light source module outgoing direction of light of the optical axis deviation of described adjustment lens.
The present invention also provides a kind of projector that adopts above-mentioned LED lighting source in addition.
Compared with prior art, beneficial effect is: LED lighting source of the present invention is provided with a plurality of led light source modules, and uses for projector by with reflector group it being synthesized a beam combination, thus the brightness that has improved lighting source.In addition, if the LED cisco unity malfunction of a certain color of this LED lighting source, although the color of the light source module at this color LED place output is affected, other light sources module this moment operate as normal still, so the integral color of lighting source is exported and is not subjected to very big influence.
Description of drawings
Fig. 1 is the structural representation of embodiment one;
Fig. 2 is the structural representation of embodiment two.
Embodiment
The present invention will be further described below in conjunction with accompanying drawing.
Embodiment one
As shown in Figure 1, the LED lighting source of present embodiment comprises two led light source modules 10, reflector group 20 and collector lens group 30.
These two led light source modules, 10 outgoing directions of light are opposite, and are positioned on the same optical axis.This reflector group 20 comprises mirror image symmetry and orthogonal two catoptrons 21.These two catoptrons lay respectively on the white light beam path of two led light source modules 10, by reflection, will be from the white light beam of two light source modules in conjunction with forming a beam combination, and import to collector lens group 30.If the emergent light of two led light source modules 10 is not on same optical axis, then the angle of two catoptrons 21 need adjust accordingly, to guarantee that light reflected still can synthesize a beam combination.
30 pairs of beam combinations of this collector lens group are assembled, and are about to two groups of beam convergences that LED sent in subsequent optical system entry place, to obtain the higher system illumination efficiency.The subsequent optical system can be beam homogenization device devices such as (figure do not show).
Each led light source module 10 comprises: green, blueness and red LED module 11,12,13, and two dichroic mirrors 14,15 that are used for synthesize white light.Wherein, green light LED module 11 is made of the led chip and the collimating mirror group of glow green, in order to produce approximately parallel green light LED light beam; Blue-ray LED module 12 is made of the led chip and the collimating mirror group of the coloured light that turns blue, in order to produce approximately parallel blue-ray LED light beam; Red-light LED module 13 is made of the led chip and the collimating mirror group of burn red, in order to produce approximately parallel red-light LED light beam.In this embodiment, first dichroic mirror 14 transmit blue, reflect green light, can be with blue-ray LED light beam and the synthetic bluish-green light beam of green light LED light beam, and second dichroic mirror 15 reflect red, transmit blue and green glow can close red-light LED light beam and bluish-green light beam light and obtain white light beam.
In the present embodiment, also adopt adjustment lens 40 that the white light beam of each led light source module 10 outgoing is compressed adjustment, make light beam better meet the needs of back design of Optical System, also can not adopt this to adjust lens 40, as long as can meet design requirement.In addition, collimating mirror group and collector lens group 30 have adopted non-spherical lens respectively, can effectively reduce eyeglass quantity, with the minimizing energy loss, and simple in structure, easy to assembly.
Embodiment two
As shown in Figure 2, the LED lighting source of present embodiment comprises two led light source modules 10 ', reflector group 20 ' and collector lens group 30 ' equally, and the structure that its key distinction with embodiment one is the led light source module is different.
The intersection mirror that the led light source module of present embodiment adopts closes the light mode, and specifically: the optical axis of green light LED module 11 ' is a primary optical axis, and the optical axis of red-light LED module 13 ' and blue-ray LED module 12 ' is all vertical with primary optical axis; Two dichroic mirrors are arranged in a crossed manner on primary optical axis, to primary optical axis, also allow green glow to penetrate simultaneously ruddiness and blu-ray reflection, thereby can synthesize white light with ruddiness, blue light and green glow, by adjustment lens 40 ' white light beam adjusted compression then.Wherein first dichroic mirror 14 ' reflect red, transmit green, blue light, second dichroic mirror 15 ' reflect blue, transmit green, ruddiness.Same, in order to reach better design effect, the lens 40 ' of will adjusting that can be suitable upwards are offset (from axle), so that white light beam better meets the needs of subsequent optical system design.
In the present embodiment, what reflector group 20 ' adopted is the isosceles prism of a both sides plating external reflection film, can certainly adopt other that optical device of similar effect is arranged.In addition, this collector lens group 30 ' has adopted non-spherical lens, can effectively reduce eyeglass quantity, with the minimizing energy loss, and simple in structure, easy to assembly.
In above-mentioned two embodiment, the collimating mirror group that blue-ray LED module, green light LED module, red-light LED module are adopted can be identical mirror group, also can adopt different mirror groups, with the design requirement of the system of better meeting.By changing two different looks to mirror, the position of blue-ray LED module, green light LED module, red-light LED module can be changed.
In addition, the present invention can also adopt other to close the led light source of light mode, change the position of adjusting lens, the collector lens group that adopts different reflector group structures or employing different materials structure, but as long as main frame is constant, in allowed band, the details of technical scheme is adjusted or conversion, still belonged within the scope of the present invention.
Claims (10)
1. a LED lighting source is characterized in that comprising: two or more led light source modules, and the reflector group that is used for the emergent light of each led light source module is synthesized a beam combination.
2. LED lighting source according to claim 1 is characterized in that: this LED lighting source comprises two led light source modules, and described reflector group is two corresponding with these two led light source modules respectively catoptrons.
3. LED lighting source according to claim 2 is characterized in that: described two led light source module outgoing directions of light are opposite, two catoptrons of described reflector group be the mirror image symmetry.
4. according to the arbitrary described LED lighting source of claim 1 to 3, it is characterized in that this LED lighting source also comprises: be used for collector lens group that this beam combination is assembled.
5. according to the arbitrary described LED lighting source of claim 1 to 3, it is characterized in that each led light source module comprises: be used to provide three groups of primary-color LED modules of approximate directional light and be used for dichroic mirror group with the light compositing white light of each primary-color LED module.
6. LED lighting source according to claim 5, it is characterized in that, described dichroic mirror comprises: be used for that two groups of primary-color LED modules are wherein closed first dichroic mirror of light and be used for second dichroic mirror with the light compositing white light that closes light and the 3rd group of primary-color LED module of these two groups of primary-color LED modules.
7. LED lighting source according to claim 6 is characterized in that: each is organized the primary-color LED module and comprises corresponding primary colours led light source and collimating mirror group.
8. according to the arbitrary described LED lighting source of claim 1 to 3, it is characterized in that: this LED lighting source also comprises and is respectively applied for some adjustment lens of the emergent light of each led light source module being adjusted compression.
9. LED lighting source according to claim 8 is characterized in that: its pairing led light source module outgoing direction of light of the optical axis deviation of described adjustment lens.
10. a projector is characterized in that comprising the arbitrary described LED lighting source of claim 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010562302XA CN102073139A (en) | 2010-11-29 | 2010-11-29 | LED (Light Emitting Diode) lighting source and projector |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201010562302XA CN102073139A (en) | 2010-11-29 | 2010-11-29 | LED (Light Emitting Diode) lighting source and projector |
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| CN201010562302XA Pending CN102073139A (en) | 2010-11-29 | 2010-11-29 | LED (Light Emitting Diode) lighting source and projector |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102734659A (en) * | 2011-10-17 | 2012-10-17 | 深圳市绎立锐光科技开发有限公司 | Light source and display system |
| WO2013056594A1 (en) * | 2011-10-17 | 2013-04-25 | 深圳市绎立锐光科技开发有限公司 | Light source and display system |
| CN103363344A (en) * | 2012-03-26 | 2013-10-23 | 红蝶科技(深圳)有限公司 | Selectable multiple light source illumination device |
| CN105259732A (en) * | 2015-11-18 | 2016-01-20 | 广景视睿科技（深圳）有限公司 | Light beam combining system and projection apparatus therefor |
| CN105605528A (en) * | 2016-03-02 | 2016-05-25 | 成都恒坤光电科技有限公司 | Light mixing lens, light source assembly with light mixing lens and headlamp with light source assembly |
| CN109782515A (en) * | 2017-11-13 | 2019-05-21 | 深圳光峰科技股份有限公司 | The projection arrangement of light-source system and the application light-source system |
| WO2020168812A1 (en) * | 2019-02-22 | 2020-08-27 | 深圳光峰科技股份有限公司 | Light source system, light source assembly, display device, and control method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101319756A (en) * | 2007-06-07 | 2008-12-10 | 台达电子工业股份有限公司 | Switchable illumination system |
| CN101430494A (en) * | 2007-11-08 | 2009-05-13 | 北京中视中科光电技术有限公司 | Light source apparatus for projection display and projection display apparatus |
| CN201568763U (en) * | 2009-06-05 | 2010-09-01 | 深圳市光峰光电技术有限公司 | Efficient stage lighting device |
| CN101852387A (en) * | 2010-04-23 | 2010-10-06 | 广东威创视讯科技股份有限公司 | Illuminating light path and LED light machine illuminating system with same |
-
2010
- 2010-11-29 CN CN201010562302XA patent/CN102073139A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101319756A (en) * | 2007-06-07 | 2008-12-10 | 台达电子工业股份有限公司 | Switchable illumination system |
| CN101430494A (en) * | 2007-11-08 | 2009-05-13 | 北京中视中科光电技术有限公司 | Light source apparatus for projection display and projection display apparatus |
| CN201568763U (en) * | 2009-06-05 | 2010-09-01 | 深圳市光峰光电技术有限公司 | Efficient stage lighting device |
| CN101852387A (en) * | 2010-04-23 | 2010-10-06 | 广东威创视讯科技股份有限公司 | Illuminating light path and LED light machine illuminating system with same |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10585293B2 (en) | 2011-10-17 | 2020-03-10 | Appotronics Corporation Limited | Light source and display system |
| WO2013056594A1 (en) * | 2011-10-17 | 2013-04-25 | 深圳市绎立锐光科技开发有限公司 | Light source and display system |
| US20150023012A1 (en) * | 2011-10-17 | 2015-01-22 | Yi Yang | Light source and display system |
| EP2770363A4 (en) * | 2011-10-17 | 2015-06-10 | Appotronics China Corp | Light source and display system |
| CN102734659A (en) * | 2011-10-17 | 2012-10-17 | 深圳市绎立锐光科技开发有限公司 | Light source and display system |
| CN103363344A (en) * | 2012-03-26 | 2013-10-23 | 红蝶科技(深圳)有限公司 | Selectable multiple light source illumination device |
| CN103363344B (en) * | 2012-03-26 | 2016-05-25 | 红蝶科技(深圳)有限公司 | A kind of selectable multiple source lighting fixture |
| CN105259732A (en) * | 2015-11-18 | 2016-01-20 | 广景视睿科技（深圳）有限公司 | Light beam combining system and projection apparatus therefor |
| WO2017084285A1 (en) * | 2015-11-18 | 2017-05-26 | 广景视睿科技（深圳）有限公司 | Light beam combining system and projection apparatus therefor |
| CN105605528A (en) * | 2016-03-02 | 2016-05-25 | 成都恒坤光电科技有限公司 | Light mixing lens, light source assembly with light mixing lens and headlamp with light source assembly |
| CN109782515A (en) * | 2017-11-13 | 2019-05-21 | 深圳光峰科技股份有限公司 | The projection arrangement of light-source system and the application light-source system |
| CN109782515B (en) * | 2017-11-13 | 2022-06-03 | 深圳光峰科技股份有限公司 | Light source system and projection device using same |
| WO2020168812A1 (en) * | 2019-02-22 | 2020-08-27 | 深圳光峰科技股份有限公司 | Light source system, light source assembly, display device, and control method thereof |
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Application publication date: 20110525 |