CN102402110A - LED (light-emitting diode) shining structure with three primary colors - Google Patents
LED (light-emitting diode) shining structure with three primary colors Download PDFInfo
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- CN102402110A CN102402110A CN2010102817305A CN201010281730A CN102402110A CN 102402110 A CN102402110 A CN 102402110A CN 2010102817305 A CN2010102817305 A CN 2010102817305A CN 201010281730 A CN201010281730 A CN 201010281730A CN 102402110 A CN102402110 A CN 102402110A
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Abstract
The invention discloses an LED (light-emitting diode) shining structure with three primary colors. The LED shining structure comprises three LED shining devices, two dichroism optical filters, a convergent mirror, a steering reflection mirror and an integral rod, wherein each LED shining device is provided with an LED chip, the LED chip is a monochrome LED chip, a group of non-spherical lens is arranged in each shining device, and an emitted light beam of the LED shining device is refracted into a parallel light beam through the corresponding non-spherical lens, and three light beams sent out from the three LED shining devices are combined into one beam of parallel light through the two dichroism optical filters after the refraction of the corresponding non-spherical lens. The LED shining structure can guarantee the high energy utilization of a system on the premise of not additionally increasing the cost, the light sent out by the light source can be collected with the maximum efficiency by using the non-spherical lens so as to reduce the light loss to the minimum, the coupling efficiency of the light source is improved, and the cost does not need to be additionally increased.
Description
Technical field
The present invention relates to a kind of ray structure, relate in particular to a kind of three-primary color LED ray structure.
Background technology
As everyone knows, the most important parts of projector are exactly bulb, and the bulb service life of big multi-projector is many 2; About in the of 000 hour, use less than year and just need change once, and the price of bulb is many 2; About 000 yuan, cause the operation and maintenance cost of projector high.And nearly 2 years, rise and application along with the led light source technology were promoted to tens thousand of hours the serviceable life of projecting camera light bulb, and the user of projector no longer need worry more to have changed the bulb.
LED (Lighting Emitting Diode) is a light emitting diode; It is to utilize the solid semiconductor chip as luminescent material; Through charge carrier compound energy of emitting surplus taking place and cause photo emissions, directly sends the light of the yellowish green ultramarine purple of blood orange in semiconductor.Three-primary color LED projector is the most common on the market now, the LED projector product that technology is also comparatively leading, and its main advantage is that color representation power is strong, picture contrast is higher, the highest level that can reach 100000:1.
Chinese patent CN101109488A discloses a kind of application of ray structure in projector and illuminator of multi-primary LED; Its ray structure comprises two above light-emitting devices, two tropism's optical filters, fly lens and convergent mirror; Each light-emitting device is equipped with the LED of one or both wavelength, and wherein light-emitting device also is respectively equipped with non-spherical lens and parabolic mirror.Owing to adopt the above LED of three primary colours as light-emitting device; This technical scheme forms coloured image need not increase the beam spread amount, and the colour gamut of its color and brightness all are able to increase, yet; When operation, need use a pair of two-sided fly lens, cause production cost than higher; When using fly lens,, understand passing through of restricted part light beam in addition, thereby cause the reduction of system capacity utilization factor because the ranks of lens arra all have the gap.
Summary of the invention
The purpose of this invention is to provide a kind of need not increasing under the prerequisite of extra cost, can guarantee the three-primary color LED ray structure of system capacity high usage.
The objective of the invention is to realize through following technical proposals:
A kind of three-primary color LED ray structure; Comprise three LED light-emitting devices, two dichroism optical filters, a convergent mirror, a steering reflection mirror and integrating rods; Be provided with a led chip in each LED light-emitting device, wherein, said led chip is the monochromatic LED chip; Also be provided with one group of non-spherical lens in said each light-emitting device; Said three led chips lay respectively on the focal plane of corresponding said three groups of non-spherical lenses, and said two dichroism optical filters are spaced from each other the parallel placement of a segment distance, and said three LED light-emitting devices place said two dichroism optical filter both sides respectively; Make the three-beam that sends from said three LED light-emitting devices after corresponding said three groups of non-spherical lenses reflect into directional light, synthesize a branch of directional light through said two dichroism optical filters.
Above-mentioned three-primary color LED ray structure; Wherein, The A face of first light path that the LED light-emitting device in said three LED light-emitting devices sends, first dichroism optical filter from said two dichroism optical filters after reflecting is 45 incident; Second light path that the 2nd LED light-emitting device sends is 45 incident from the B face of the said first dichroism optical filter after reflecting; The 3rd light path that the 3rd LED light-emitting device sends is 45 incident from the B face of the second dichroism optical filter after reflecting; The light path of light path and said second light path of said first light path after the B face outgoing of the said first dichroism optical filter after the B face reflection of the said first dichroism optical filter merged into the first synthetic light beam, and the said first synthetic light beam is light path and said the 3rd light path light path after the A face outgoing of the said second dichroism optical filter after 45 incident and the reflection from the A face of the said second dichroism optical filter and merges into second and synthesize light beam.
Above-mentioned three-primary color LED ray structure; Wherein, A branch of directional light vertical incidence of said final formation and pass said convergent mirror after on its focal plane, form a circular light spot, said circular light spot is the incident end face of 45 incident back reflection to said integrating rod from the surface of said steering reflection mirror.
Above-mentioned three-primary color LED ray structure; Wherein, The said second synthetic light beam vertical incidence and pass said convergent mirror after on its focal plane, form a circular light spot, said circular light spot is the incident end face of 45 incident back reflection to said integrating rod from the surface of said steering reflection mirror.
Above-mentioned three-primary color LED ray structure, wherein, a said LED light-emitting device is a red LED, and said the 2nd LED light-emitting device is a green LED, and said the 3rd LED light-emitting device is a blue led.
Above-mentioned three-primary color LED ray structure, wherein, said integrating rod inwall coheres and forms by being coated with the plane mirror with high reflectivity film, makes light can repeatedly reflect on the wall within it.
Above-mentioned three-primary color LED ray structure, wherein, said convergent mirror adopts relay lens.
Advantage of the present invention and beneficial effect are:
1,, can guarantee that coloured image forms under the constant condition of colour gamut, the brightness of back color, does not increase extra cost because the versatility of integrating rod;
2, utilize non-spherical lens maximal efficiency ground to collect the light that light source sends, it is minimum that light losing is dropped to, and improves the coupling efficiency of light source.
Description of drawings
Fig. 1 is the structural representation of three-primary color LED ray structure of the present invention;
Fig. 2 is a structural representation of using the optical projection system of three-primary color LED ray structure of the present invention;
Fig. 3 is the light ray propagation synoptic diagram in the integrating rod in the three-primary color LED ray structure of the present invention.
Embodiment
Below in conjunction with schematic diagram and concrete operations embodiment the present invention is described further.
See also Fig. 1; Arrow is represented the direction of propagation of light; Three-primary color LED ray structure of the present invention comprises 201,202, one convergent mirrors 31 of 101,102,103, two dichroism optical filters of three LED light-emitting devices; A steering reflection mirror 41 and an integrating rod 51; Each LED light-emitting device is equipped with a monochromatic LED chip, also is provided with one group of non-spherical lens L1, L2, L3 in each light-emitting device, and the emission light beam of LED light-emitting device becomes parallel beam through corresponding non-spherical lens group refraction.The three-beam that sends from three LED light-emitting devices 101,102,103 is after corresponding non-spherical lens group L1, L2 and L3 refraction; Through two dichroism optical filters, 201,202 synthetic a branch of directional lights; On its focal plane, form a circular light spot 401 through convergent mirror 31 backs again, circular light spot 401 reflexes to incident end face 501 places of integrating rod 51 through steering reflection mirror 41.Integrating rod 51 inwalls cohere and form by being coated with the plane mirror with high reflectivity film, make light can repeatedly reflect on the wall within it, make light losing less.
Further; The A face of first light path, first dichroism optical filter 201 from two dichroism optical filters after reflecting that the LED light-emitting device 101 in three LED light-emitting devices sends is 45 incident; Second light path that the 2nd LED light-emitting device 102 sends is 45 incident from the B face of the first dichroism optical filter 201 after reflecting; The 3rd light path that the 3rd LED light-emitting device 103 sends is 45 incident from the B face of the second dichroism optical filter 202 after reflecting; The light path of light path and second light path of first light path after the B face outgoing of the first dichroism optical filter 201 after the B face reflection of the first dichroism optical filter 201 merged into the first synthetic light beam, and the first synthetic light beam is light path and the 3rd light path light path after the A face outgoing of the second dichroism optical filter 202 after 45 incident and the reflection from the A face of the second dichroism optical filter 202 and merges into second and synthesize light beam.The second synthetic light beam forms a circular light spot 401 through convergent mirror 31 backs on its focal plane, circular light spot 401 reflexes to incident end face 501 places of integrating rod 51 through steering reflection mirror 41.
Further, a LED light-emitting device 101 is a red LED, and the 2nd LED light-emitting device 102 is a green LED; The 3rd LED light-emitting device 103 is a blue led, adopts the LED of three kinds of colors, and its centre wavelength is respectively: red LED is 623nm; Green LED is 525nm, and blue led is 462nm.Light-emitting device 101,102,103 lays respectively on the focal plane of non-spherical lens group L1, L2 and L3; The light that light-emitting device sent is respectively through behind the lens 11 and 12 in the pairing aspheric surface plastic cement lens combination separately; Lens have almost been collected all light that light-emitting device sends, and its refraction is become parallel light emergence.
See also Fig. 2, the optical projection system of using three-primary color LED ray structure of the present invention also comprises relay lens 61 on the basis of three-primary color LED ray structure of the present invention, steering reflection mirror 71,81, micro display chip DMD91 and projection lens 1001.Likewise; Each light-emitting device 101,102 or 103 is equipped with a kind of LED of wavelength; Be provided with three-primary color LED altogether; Two two tropism's color filters 201,202 feasible identical directional lights of a branch of cross-sectional area of light compositing that send from light-emitting device 101,102,103, convergent lens 31 is assembled parallel beam and is circular light spot 401, and deviation mirror 41 will be assembled the circular light spot 401 of lens 31 and turn back to incident end face 501 places of integrating rod 51; Hot spot at incident end face 501 places reflects on the inwall of integrating rod 51, forms the even rectangular illumination hot spot identical with the ratio of DMD91 at integrating rod 51 outgoing end faces 502 places; Relay lens 61 amplifies the even rectangular illumination hot spot at integrating rod 51 outlets 502 places; And make the hot spots that amplify drop on the DMD91 position through steering reflection mirror 71 and steering reflection mirror 81; Thereby reach the purpose of even illumination micro display chip DMD91, colour projection's image that the micro display chip DMD91 after process is evenly thrown light on obtains amplifying through projection lens 1001 again.
Integrating rod 51 internal light of the present invention are propagated synoptic diagram and are seen also shown in Figure 3; In integrating rod 51; Hot spot drops on incident end face 501 places of integrating rod 51; Because integrating rod 51 inwalls are coated with the dielectric multi-layer optical thin film with high reflectance, light can repeatedly reflect on the inwall of integrating rod 51, makes light losing less.Hot spot at the incident end face 501 places L101 that emits beam; Carry out the reflection second time through light L102 behind the first reflection; Obtain reflection ray L103, penetrate light L104 at integrating rod 51 outgoing end faces 502 places, thereby form the even rectangular illumination hot spot identical with micro display chip DMD91 ratio.
More than specific embodiment of the present invention is described in detail, but the present invention is not restricted to the specific embodiment of above description, it is just as example.To those skilled in the art, any equivalent modifications that this three-primary color LED ray structure is carried out with substitute also all among category of the present invention.Therefore, not breaking away from impartial conversion and the modification of having done under the spirit and scope of the present invention, all should contain within the scope of the invention.
Claims (7)
1. three-primary color LED ray structure; Comprise three LED light-emitting devices, two dichroism optical filters, a convergent mirror, a steering reflection mirror and integrating rods; Be provided with a led chip in each LED light-emitting device, it is characterized in that, said led chip is the monochromatic LED chip; Also be provided with one group of non-spherical lens in said each light-emitting device; Said three led chips lay respectively on the focal plane of corresponding said three groups of non-spherical lenses, and said two dichroism optical filters are spaced from each other the parallel placement of a segment distance, and said three LED light-emitting devices place said two dichroism optical filter both sides respectively; Make the three-beam that sends from said three LED light-emitting devices after corresponding said three groups of non-spherical lenses reflect into directional light, synthesize a branch of directional light through said two dichroism optical filters.
2. three-primary color LED ray structure according to claim 1; It is characterized in that; The A face of first light path that the LED light-emitting device in said three LED light-emitting devices sends, first dichroism optical filter from said two dichroism optical filters after reflecting is 45 incident; Second light path that the 2nd LED light-emitting device sends is 45 incident from the B face of the said first dichroism optical filter after reflecting; The 3rd light path that the 3rd LED light-emitting device sends is 45 incident from the B face of the second dichroism optical filter after reflecting; The light path of light path and said second light path of said first light path after the B face outgoing of the said first dichroism optical filter after the B face reflection of the said first dichroism optical filter merged into the first synthetic light beam, and the said first synthetic light beam is light path and said the 3rd light path light path after the A face outgoing of the said second dichroism optical filter after 45 incident and the reflection from the A face of the said second dichroism optical filter and merges into second and synthesize light beam.
3. three-primary color LED ray structure according to claim 1; It is characterized in that; A branch of directional light vertical incidence of said final formation and pass said convergent mirror after on its focal plane, form a circular light spot, said circular light spot is the incident end face of 45 incident back reflection to said integrating rod from the surface of said steering reflection mirror.
4. three-primary color LED ray structure according to claim 2; It is characterized in that; The said second synthetic light beam vertical incidence and pass said convergent mirror after on its focal plane, form a circular light spot, said circular light spot is the incident end face of 45 incident back reflection to said integrating rod from the surface of said steering reflection mirror.
5. three-primary color LED ray structure according to claim 2 is characterized in that, a said LED light-emitting device is a red LED, and said the 2nd LED light-emitting device is a green LED, and said the 3rd LED light-emitting device is a blue led.
6. according to claim 1 or 3 or 4 described three-primary color LED ray structures, it is characterized in that said integrating rod inwall coheres and forms by being coated with the plane mirror with high reflectivity film, makes light can repeatedly reflect on the wall within it.
7. according to claim 1 or 3 or 4 described three-primary color LED ray structures, it is characterized in that said convergent mirror adopts relay lens.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102817305A CN102402110A (en) | 2010-09-15 | 2010-09-15 | LED (light-emitting diode) shining structure with three primary colors |
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| CN2010102817305A CN102402110A (en) | 2010-09-15 | 2010-09-15 | LED (light-emitting diode) shining structure with three primary colors |
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| CN102402110A true CN102402110A (en) | 2012-04-04 |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104316172A (en) * | 2014-10-09 | 2015-01-28 | 中国科学院上海光学精密机械研究所 | Energy detection device for photoetching machine |
| CN106773493A (en) * | 2017-03-24 | 2017-05-31 | 合肥工业大学 | Based on multi-colored led projecting illumination system |
| WO2020186843A1 (en) * | 2019-03-20 | 2020-09-24 | 青岛海信激光显示股份有限公司 | Laser light source and laser projection apparatus |
| CN111722464A (en) * | 2019-03-20 | 2020-09-29 | 青岛海信激光显示股份有限公司 | Laser projection device |
| CN112114481A (en) * | 2019-06-20 | 2020-12-22 | 青岛海信激光显示股份有限公司 | Laser projection device |
| US11079665B2 (en) | 2019-03-20 | 2021-08-03 | Hisense Laser Display Co., Ltd. | Laser projection apparatus |
| CN113325588A (en) * | 2021-06-21 | 2021-08-31 | 凤凰光学股份有限公司 | High-brightness high-resolution high-contrast augmented reality display equipment |
| US11237468B2 (en) | 2019-06-20 | 2022-02-01 | Hisense Laser Display Co., Ltd. | Laser projection apparatus |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1873469A (en) * | 2005-06-02 | 2006-12-06 | 三星电子株式会社 | Illumination system capable of adjusting aspect ratio and projection system employing the illumination system |
| US20070121085A1 (en) * | 2005-11-29 | 2007-05-31 | Texas Instruments Incorporated | Method of combining dispersed light sources for projection display |
| CN101101437A (en) * | 2006-07-04 | 2008-01-09 | Lg电子株式会社 | Projection system |
| CN101109488A (en) * | 2007-08-23 | 2008-01-23 | 福州高意光学有限公司 | Multiple primary color LED luminous structure and application in projector and lighting system |
| CN101496170A (en) * | 2006-07-31 | 2009-07-29 | 3M创新有限公司 | Integrating light source module |
-
2010
- 2010-09-15 CN CN2010102817305A patent/CN102402110A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1873469A (en) * | 2005-06-02 | 2006-12-06 | 三星电子株式会社 | Illumination system capable of adjusting aspect ratio and projection system employing the illumination system |
| US20070121085A1 (en) * | 2005-11-29 | 2007-05-31 | Texas Instruments Incorporated | Method of combining dispersed light sources for projection display |
| CN101101437A (en) * | 2006-07-04 | 2008-01-09 | Lg电子株式会社 | Projection system |
| CN101496170A (en) * | 2006-07-31 | 2009-07-29 | 3M创新有限公司 | Integrating light source module |
| CN101109488A (en) * | 2007-08-23 | 2008-01-23 | 福州高意光学有限公司 | Multiple primary color LED luminous structure and application in projector and lighting system |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104316172A (en) * | 2014-10-09 | 2015-01-28 | 中国科学院上海光学精密机械研究所 | Energy detection device for photoetching machine |
| CN106773493A (en) * | 2017-03-24 | 2017-05-31 | 合肥工业大学 | Based on multi-colored led projecting illumination system |
| WO2020186843A1 (en) * | 2019-03-20 | 2020-09-24 | 青岛海信激光显示股份有限公司 | Laser light source and laser projection apparatus |
| CN111722464A (en) * | 2019-03-20 | 2020-09-29 | 青岛海信激光显示股份有限公司 | Laser projection device |
| US11079665B2 (en) | 2019-03-20 | 2021-08-03 | Hisense Laser Display Co., Ltd. | Laser projection apparatus |
| CN112114481A (en) * | 2019-06-20 | 2020-12-22 | 青岛海信激光显示股份有限公司 | Laser projection device |
| US11237468B2 (en) | 2019-06-20 | 2022-02-01 | Hisense Laser Display Co., Ltd. | Laser projection apparatus |
| CN113325588A (en) * | 2021-06-21 | 2021-08-31 | 凤凰光学股份有限公司 | High-brightness high-resolution high-contrast augmented reality display equipment |
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Application publication date: 20120404 |