CN102213399B - Projector - Google Patents
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- CN102213399B CN102213399B CN201010138328.1A CN201010138328A CN102213399B CN 102213399 B CN102213399 B CN 102213399B CN 201010138328 A CN201010138328 A CN 201010138328A CN 102213399 B CN102213399 B CN 102213399B
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- light
- dichroic mirror
- light source
- wave length
- blue laser
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Abstract
The invention provides a light conversion component which comprises a substrate and a light conversion layer, wherein the substrate is made from a metal ceramic material and comprises an irradiated surface; the light conversion layer is covered on the irradiated surface by sintering; and under irradiation of external laser with a specific wavelength, the light conversion layer emits light with another specific wavelength. According to the light conversion component provided by the invention, as the light conversion layer is combined on the substrate by sintering, the light conversion component can work normally under high-temperature irradiation of laser so as to avoid drop. Moreover, the invention also provides a light source module using the light conversion component and a projector using the light source module.
Description
Technical field
The present invention relates to a kind of projector.
Background technology
Existing part projector adopts blue laser fluorescence excitation material luminescence to replace green LED luminous.But in the design of this projector, usually utilize glue to be coated in by fluorescent material on a rotating disk by motor high-speed rotation, then it is luminous to irradiate fluorescent material by laser.But, because laser energy is very high, so the glue on rotating disk easily irradiates gasified at the high temperature of laser, cause fluorescent powder to depart from from rotating disk at a high speed, thus affect the use of projector.
Summary of the invention
In view of this, be necessary to provide a kind of resistant to elevated temperatures projector.
A kind of projector, it comprises light source module, secondary light source, the 3rd light source, optical element, image-forming component and camera lens.Described secondary light source sends blue light, described 3rd light source sends red light, described light source module comprises at least one blue laser radiated element, a light transition components and the first dichroic mirror, at least one blue laser radiated element described launches blue laser, described smooth transition components and at least one blue laser radiated element described are oppositely arranged, described smooth transition components comprises substrate and light conversion layer, described substrate is made up of cermet material, described substrate comprises a plane of illumination, described plane of illumination is towards at least one blue laser radiated element described, described light conversion layer is made up of fluorescent material, be covered on described plane of illumination by sintering, described light conversion layer inspires green glow under the irradiation of described blue laser, described first dichroic mirror is arranged between at least one blue laser light emission element described and light transition components, and the normal of described first dichroic mirror and the light path of described blue laser are 45 degree of angles, described first dichroic mirror is used for the light launching first wave length through described blue laser light emission element, the light of described first wave length becomes the light of second wave length through described light conversion layer, described first dichroic mirror is also for reflecting the light of described second wave length, on the emitting light path of the light that described second dichroic mirror is positioned at described second wave length after described first dichroic mirror reflection, and the light path of the light of the normal of described second dichroic mirror and the described second wave length after reflecting is 45 degree of angles, described second dichroic mirror is used for the light through described 3rd light source, reflect light and the light that sends of reflection secondary light source of described second wave length, the light of the 3rd light source, project on described image-forming component by described optical element in parallel to each other between the light three of the light that the light of described second wave length and secondary light source send after the second dichroic mirror reflection, described image-forming component is by the light of the described optical element transmission of reflection, light is projected away by described camera lens.
Because smooth transition components provided by the invention is combined on the substrate by light conversion layer by the mode of sintering, so normally can work under the high temperature of laser irradiates, avoid coming off.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of smooth transition components provided by the invention.
Fig. 2 is the schematic diagram of light source module provided by the invention
Fig. 3 is the schematic diagram of projector provided by the invention.
Main element symbol description
Projector 100
Light source module 10
Laser emitting elements 11
Light transition components 12
Substrate 120
Plane of illumination 120a
Radiating surface 120b
Light conversion layer 121
Radiating piece 122
Thermal grease 9
First dichroic mirror 20
Secondary light source 30
Second dichroic mirror 40
3rd light source 50
First relay lens group 60
Catoptron 70
Second relay lens 80
TIR prism system 90
Image-forming component 110
Camera lens 130
Ray machine base 140
First accommodating cavity 141
The first side wall 141a
Second sidewall 141b
3rd sidewall 141c
Second accommodating cavity 142
Light inlet 142a
4th sidewall 142b
Light-emitting window 142c
3rd accommodating cavity 143
Embodiment
Below in conjunction with accompanying drawing, the present invention is described in further detail.
Referring to Fig. 1, is a kind of light transition components 12 provided by the invention.Described smooth transition components 12 comprises substrate 120, light conversion layer 121 and radiating piece 122.Described substrate 120 is made up of the metallic ceramics of high thermal conductivity, is conducive to heat radiation.Described substrate 120 can be that the materials such as aluminium nitride, silicon nitride, aluminium oxide are made.Described substrate 120 comprises the plane of illumination 120a and radiating surface 120b that are oppositely arranged.
Described light conversion layer 121 is luminous under outside laser irradiates.In present embodiment, described light conversion layer 121 adopts yellow rare-earth fluorescent powder, and this yellow rare-earth fluorescent powder sends green glow under blue excitation.Described light conversion layer 121 is combined on described plane of illumination 120a by low temperature sintering technology.Particularly, when making described light conversion layer 121, first yellow rare-earth fluorescent powder is mixed with resin glue, again potpourri is coated on the plane of illumination 120a of substrate 120, then put into baking box with 180 degrees Celsius of bakings, resin glue is gasified, and rare-earth fluorescent powder sintering is formed light conversion layer 121 on plane of illumination 120a.Because resin glue is vaporized in bake process, described light conversion layer 121 adheres on described plane of illumination 120a by sintering, so when utilizing high-octane laser to irradiate light conversion layer 121, viscose glue can not be produced and to gasify the phenomenon causing light conversion layer 121 to come off.
Described radiating piece 122 is fixedly arranged on the radiating surface 120b of described substrate 120, and with the thermal coupling of described substrate 120, for dispelling the heat for described substrate 120.In present embodiment, described radiating piece 122 adopts heat radiator, and fills thermal grease 9 between described radiating surface 120b and radiating piece 122.Described thermal grease 9, for eliminating the clearance between described radiating surface 120b and radiating piece 122, reduces thermal resistance.Described thermal grease 9 adopts heat-conducting silicone grease.Certainly, described radiating piece 122 also can adopt the heat abstractor such as refrigerator or fan.
Refer to Fig. 2, be the light source module 10 with light transition components 12 provided by the invention, described light source module 10 also comprises laser emitting elements 11, and described laser emitting elements 11 launches the laser L0 of first wave length.In present embodiment, described laser emitting elements 11 is the laser diode launching blue light.Certainly, in order to improve brightness, described light source module 10 also can comprise multiple laser emitting elements 11.The light conversion layer 121 of described smooth transition components 12 inspires the light L1 of second wave length, i.e. green glow under the laser L0 of described first wave length irradiates.
Referring to Fig. 3, is projector 100 provided by the invention.This projector 100 comprises light source module 10, first dichroic mirror 20, secondary light source 30, second dichroic mirror 40, the 3rd light source 50, first relay lens group 60, catoptron 70, second relay lens 80, TIR prism system 90, image-forming component 110, camera lens 130 and ray machine base 140.Described light source module 10, first dichroic mirror 20, secondary light source 30, second dichroic mirror 40, the 3rd light source 50, first relay lens group 60, catoptron 70, second relay lens 80, TIR prism system 90, image-forming component 110, camera lens 130 are fixed in ray machine base 140 successively along optical path direction.
Described ray machine base 140 comprises the first through successively accommodating cavity 141, second accommodating cavity 142 and the 3rd accommodating cavity 143 along optical path direction.Described first accommodating cavity 141 comprises the first side wall 141a, the second sidewall 141b and the 3rd sidewall 141c.Described the first side wall 141a is relative with described second sidewall 141b, and described 3rd sidewall 141c is connected between the first side wall 141a and the second sidewall 141b.Described laser emitting elements 11 and the 3rd light source 50 are fixed on described the first side wall 141a, and described secondary light source 30 is fixed on described second sidewall 141b.The relatively described laser emitting elements 11 of described smooth transition components 12 is fixed on described 3rd sidewall 141c, and the light conversion layer 121 of described smooth transition components 12 is towards described laser emitting elements 11.
Described first dichroic mirror 20 is fixedly arranged between described laser emitting elements 11 and light transition components 12, and the described normal OO ' of the first dichroic mirror 20 is 45 degree of angles with the light path of the laser L0 of described first wave length.The laser L0 of the first wave length that described first dichroic mirror 20 can be launched through described laser emitting elements 11, but the light L1 reflecting that described light conversion layer 121 is inspired second wave length by laser L0.
The direction of the light L2 that described secondary light source 30 sends reflect with the light L1 of second wave length after exit direction identical.The light L2 that described secondary light source 30 sends can pass described first dichroic mirror 20.In present embodiment, described secondary light source 30 adopts blue LED.
On the emitting light path of the light L1 that described second dichroic mirror 40 is positioned at described second wave length after described first dichroic mirror 20 reflects, and the light path of the light L1 of described second wave length after the normal MM ' of described second dichroic mirror 40 and reflection is 45 degree of angles.Described second dichroic mirror 40, for the light L3 through described 3rd light source 50, reflects the light L2 that the light L1 of described second wave length and secondary light source 30 send.
The exit direction of direction light L1 of second wave length after reflecting through described second dichroic mirror 40 of the light L3 that described 3rd light source 50 sends is identical.The light L3 that described 3rd light source 50 sends can pass described second dichroic mirror 40.In present embodiment, described 3rd light source 50 adopts red light emitting diodes.
Described first relay lens group 60, catoptron 70 and the second relay lens 80 are fixedly arranged in described second accommodating cavity 142 along optical path direction.Described second accommodating cavity 142 comprises light inlet 142a, the 4th sidewall 142b and light-emitting window 142c.Described light inlet 142a is communicated with described first accommodating cavity 141.Described light-emitting window 142c is communicated with described 3rd accommodating cavity 143.Described 4th sidewall 142b is between described light inlet 142a and light-emitting window 142c.Described first relay lens group 60 is contained in described light inlet 142a, and the light L3 sent for the light L2 that the light L1 of described second wave length, secondary light source 30 sent and the 3rd light source 50 converts directional light to.
Described catoptron 70 is arranged on described 4th sidewall 142b, and the normal N N ' of described catoptron 70 is 45 degree of angles with the light path of the light L1 of the described second wave length after the first relay lens group 60 outgoing.Described catoptron 70 for reflecting the light L1 of described second wave length, light L2 that secondary light source 30 sends and the light L3 that the 3rd light source 50 sends.
Described second relay lens 80 is contained in described light-emitting window 142c, the directional light of the light L3 sent for the light L2 that the light L1 of the described second wave length reflected through described catoptron 70, secondary light source 30 sent and the 3rd light source 50 converges, and shines described TIR prism system 90.
Described TIR prism system 90 and image-forming component 110 are contained in described 3rd accommodating cavity 143.Described TIR prism system 90 is made up of two pieces of prisms.Described TIR prism system 90 can make the light beam entering its inside that reflection and refraction constantly occur, thus changes the direction of light beam.After the light beam penetrated from described second relay lens 80 enters described TIR prism system 90, the direction of light beam is just changed to image-forming component 110 and works required direction and angle.And after the light beam of injection from image-forming component 110 enters described TIR prism system 90 again, the direction of light beam is just changed, and makes light beam can enter in described camera lens 130.
Described image-forming component 110 is digital micro-mirror devices.Described camera lens 130, for receiving the light of injection from TIR prism system 90, then goes up imaging at screen (not shown).
Because smooth transition components provided by the invention is combined on the substrate by light conversion layer by the mode of sintering, so normally can work under the high temperature of laser irradiates, avoid coming off.
Be understandable that, for the person of ordinary skill of the art, other various corresponding change and distortion can be made by technical conceive according to the present invention, and all these change the protection domain that all should belong to the claims in the present invention with distortion.
Claims (1)
1. a projector, it comprises light source module, secondary light source, second dichroic mirror, 3rd light source, optical element, image-forming component and camera lens, it is characterized in that, described secondary light source sends blue light, described 3rd light source sends red light, described light source module comprises at least one blue laser radiated element, a light transition components and the first dichroic mirror, at least one blue laser radiated element described launches blue laser, described smooth transition components and at least one blue laser radiated element described are oppositely arranged, described smooth transition components comprises substrate and light conversion layer, described substrate is made up of cermet material, described substrate comprises a plane of illumination, described plane of illumination is towards at least one blue laser radiated element described, described light conversion layer is made up of fluorescent material, be covered on described plane of illumination by sintering, described light conversion layer inspires green glow under the irradiation of described blue laser, described first dichroic mirror is arranged between at least one blue laser light emission element described and light transition components, and the normal of described first dichroic mirror and the light path of described blue laser are 45 degree of angles, described first dichroic mirror is used for the light launching first wave length through described blue laser light emission element, the light of described first wave length becomes the light of second wave length through described light conversion layer, described first dichroic mirror is also for reflecting the light of described second wave length, on the emitting light path of the light that described second dichroic mirror is positioned at described second wave length after described first dichroic mirror reflection, and the light path of the light of the normal of described second dichroic mirror and the described second wave length after reflecting is 45 degree of angles, described second dichroic mirror is used for the light through described 3rd light source, reflect light and the light that sends of reflection secondary light source of described second wave length, the light of the 3rd light source, project on described image-forming component by described optical element in parallel to each other between the light three of the light that the light of described second wave length and secondary light source send after the second dichroic mirror reflection, described image-forming component is by the light of the described optical element transmission of reflection, light is projected away by described camera lens.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010138328.1A CN102213399B (en) | 2010-04-02 | 2010-04-02 | Projector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010138328.1A CN102213399B (en) | 2010-04-02 | 2010-04-02 | Projector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102213399A CN102213399A (en) | 2011-10-12 |
| CN102213399B true CN102213399B (en) | 2015-04-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010138328.1A Active CN102213399B (en) | 2010-04-02 | 2010-04-02 | Projector |
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| CN (1) | CN102213399B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT516729B1 (en) * | 2015-03-25 | 2016-08-15 | Zizala Lichtsysteme Gmbh | Headlights for vehicles |
| CN108693689A (en) * | 2017-04-12 | 2018-10-23 | 扬明光学股份有限公司 | Light supply apparatus |
| CN113467169A (en) | 2020-03-30 | 2021-10-01 | 中强光电股份有限公司 | Wavelength conversion element, method for manufacturing same, and projection apparatus |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1254739A (en) * | 1998-11-24 | 2000-05-31 | 中国科学院长春物理研究所 | Coated electrofluorescent powder and its coating method |
| US6769773B1 (en) * | 2003-05-20 | 2004-08-03 | Jiahn-Chang Wu | Projector with UV light source |
| CN101131531A (en) * | 2006-08-22 | 2008-02-27 | 普立尔科技股份有限公司 | Projector with laser LED as its light source and light source device thereof |
| CN101498401A (en) * | 2008-01-29 | 2009-08-05 | 绎立锐光科技开发(深圳)有限公司 | Light source structure for improving light conversion efficiency by fluorescent powder |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1663822A (en) * | 2004-03-03 | 2005-09-07 | 仁宝电脑工业股份有限公司 | Processing method of printing-sintering and printing material thereof |
| JP2006016215A (en) * | 2004-06-30 | 2006-01-19 | Sanyo Electric Co Ltd | Dielectric ceramic and laminated ceramic substrate |
-
2010
- 2010-04-02 CN CN201010138328.1A patent/CN102213399B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1254739A (en) * | 1998-11-24 | 2000-05-31 | 中国科学院长春物理研究所 | Coated electrofluorescent powder and its coating method |
| US6769773B1 (en) * | 2003-05-20 | 2004-08-03 | Jiahn-Chang Wu | Projector with UV light source |
| CN101131531A (en) * | 2006-08-22 | 2008-02-27 | 普立尔科技股份有限公司 | Projector with laser LED as its light source and light source device thereof |
| CN101498401A (en) * | 2008-01-29 | 2009-08-05 | 绎立锐光科技开发(深圳)有限公司 | Light source structure for improving light conversion efficiency by fluorescent powder |
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| Publication number | Publication date |
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| CN102213399A (en) | 2011-10-12 |
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Inventor after: Pan Xiujuan Inventor before: Huang Kai |
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| CB03 | Change of inventor or designer information | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170725 Address after: 528225, Guangdong, Foshan City, Nanhai District, South lion Town, pine summer Industrial Park Road North Patentee after: AMS PRODUCT ASSEMBLY (FOSHAN) CO.,LTD. Address before: 518000 Guangdong Province, Shenzhen New District of Longhua City, Dalang street, Longsheng Gold Dragon Road community e-commerce incubator exhibition Tao Commercial Plaza E block 706 Patentee before: Shenzhen Meliao Technology Transfer Center Co.,Ltd. Effective date of registration: 20170721 Address after: Guangdong province Shenzhen city Longhua District Dalang street community of Longsheng gold dragon road e-commerce incubator exhibition Tao Commercial Plaza E block 706 Patentee after: Shenzhen Meliao Technology Transfer Center Co.,Ltd. Address before: 518109 Guangdong city of Shenzhen province Baoan District Longhua Town Industrial Zone tabulaeformis tenth East Ring Road No. 2 two Co-patentee before: HON HAI PRECISION INDUSTRY Co.,Ltd. Patentee before: HONG FU JIN PRECISION INDUSTRY (SHENZHEN) Co.,Ltd. |
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| TR01 | Transfer of patent right |