CN1381765A - LCD projector cooling device - Google Patents
LCD projector cooling device Download PDFInfo
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- CN1381765A CN1381765A CN 01110668 CN01110668A CN1381765A CN 1381765 A CN1381765 A CN 1381765A CN 01110668 CN01110668 CN 01110668 CN 01110668 A CN01110668 A CN 01110668A CN 1381765 A CN1381765 A CN 1381765A
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- liquid crystal
- container
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Abstract
When the optical system of the invention is heated by the irradiation of a light source, the cooling liquid takes away the heat of the liquid crystal panel and the polaroid in the optical system, the flow guide device is used for guiding the cooling liquid to flow, the cooling liquid with high temperature is cooled by the heat dissipation device, then the heat is dissipated to the outside by the heat dissipation device, and after the cooling liquid is cooled, the cooling liquid flows through the liquid crystal panel and the polaroid again by the flow guide device to repeat the cooling circulation.
Description
The present invention relates to a kind of cooling device of liquid crystal projector, particularly a kind of cooling device with the liquid crystal projector of using the optical system of cooling off liquid crystal projector.
Liquid crystal projector is development product energetically now, and wherein the structure of penetration liquid crystal projector as shown in Figure 1.At first, white light source (comprises red, green, blue three color light) through lens arra A, and pass through the tortuous light path of MR1 (first catoptron) again, scioptics and polarisation converter (PSB), behind the collimation lens (CD1), utilize MD1 (first light splitting piece) that blue light is penetrated, green glow and reflection to red light, at this moment, blue light is again by the tortuous light path of MR2, regulate by the linear polarization polaroid and through blue liquid crystal panel (LCb), again by behind the inspection light polarization plate, enter first of combined prism (XP), and green glow and ruddiness are during through MD2, MD2 makes green glow reflect by the linear polarization polaroid and enter green liquid crystal panel (LCg) and regulates light source, again by the inspection light polarization plate, enters second of combined prism (XP) then, ruddiness is then after penetrating MD2, behind MR3 and MR4, by the linear polarization polaroid and enter red liquid crystal panel (LCr) and regulate light, enter the 3rd of combined prism (XP) by the inspection light polarization plate again.After three kinds of light entered the combined prism combination respectively, the light after this combination entered camera lens (PL) by the fourth face of combined prism, thereby can be with image projecting to screen (S).
Generally speaking, in liquid crystal projector, because light is by the luminous generation of gas discharge principle, the high temperature light that is sent is through the design of light harvesting, light-ray condensing is radiated at liquid crystal panel and is attached on the inspection light polarization plate of combined prism, thereby the temperature of liquid crystal panel and inspection light polarization plate is raise, so when the crystal projection machine operation, must do suitable cooling to liquid crystal panel and inspection light polarization plate, so that liquid crystal panel can demonstrate image clearly and not lose the function of regulating light on screen, and make the inspection light polarization plate be unlikely to burn.Existing cooling device can be divided into two kinds of air cooling and liquid cooling.
1. air cooling: on the substrate of fixed combined prism, offer three cooling holes that correspond respectively to three liquid crystal panels, and fan is set below substrate, the air-flow of fan generation is imported the irradiation zone of liquid crystal panel, airflow temperature behind liquid crystal panel is risen, take away the heat of liquid crystal panel, and the cooling effectiveness of air can promote gradually along with the increase of flow velocity.Yet this kind type of cooling even increase flow velocity again, also can't promote cooling effectiveness after air velocity reaches a critical value.And, projector's brightness increase considerably and the liquid crystal panel compact in size now, the passage of cool stream and film-cooled heat are all dwindling, so the demand of liquid crystal panel cooling has surpassed the air cooled limit.
2. liquid cooling:, therefore develop and following liquid cooling mode because the air cooling has the limit:
As U.S. Patent number the 4th, 772, No. 098 disclosed liquid cooling mode is to add penetration cooled containers and heat-pipe apparatus in liquid crystal projector, wherein the cooling liquid of penetration is equipped with in the inside of penetration cooled containers, and outside one side is close together with the one side of liquid crystal panel, and heat-pipe apparatus has the absorber that inserts penetration cooled containers inside and be arranged on penetration cooled containers outside be used for liquid heat band that absorber is absorbed from heating radiator, thereby can reduce the temperature of liquid crystal panel.But in this patent, liquid crystal panel only has one side to be arranged on the penetration cooled containers, thereby the heat of liquid crystal panel another side can't be taken away.In addition be, the liquid crystal projector miniaturization now, this patent can't be fast and heat radiation effectively, also can't carry out suitable cooling to the inspection light polarization plate.
As U.S. Patent number the 5th, 170, the liquid cooling mode of No. 195 patent disclosures is for adding closed container, convection current stiffening device and heat radiator in liquid crystal projector, wherein closed container can penetrate and be equipped with liquid coolant for light, and inspection light polarization plate and liquid crystal panel are separately positioned on the front and rear wall of closed container, the convection current stiffening device then is the periphery that the heat that utilizes liquid will examine light polarization plate and liquid crystal panel takes container to, utilize again be positioned at container perimeter heat radiator with liquid heat band from container, thereby can reduce the temperature of inspection light polarization plate and liquid crystal panel.But the container of this patent disclosure only is positioned at one side of inspection light polarization plate and liquid crystal panel, thereby the heat of inspection light polarization plate and liquid crystal panel another side can't be taken away, and the liquid crystal projector miniaturization now, this patent also can't be fast and heat radiation effectively.
Again, as U.S. Patent number the 5th, 767, the liquid cooling mode of No. 924 patent disclosures is the inner container that cooling liquid is arranged of putting of adding in liquid crystal projector, and the liquid crystal panel in the light path is immersed internal tank, so that liquid crystal panel reduces temperature.But because only reduce the temperature of liquid crystal panel by means of the intensification of cooling liquid, the element that there is no other is taken away the temperature that cooling liquid increased, and therefore as above-mentioned patent, this patent also can't effectively be lowered the temperature to liquid crystal panel.
Fundamental purpose of the present invention is the cooling device that a kind of liquid crystal projector is provided, and is used for the liquid crystal panel and the polaroid of optical system are cooled off effectively.
Cooling device according to liquid crystal projector disclosed by the invention, comprise optical system, flow guide system, the heat dissipation system, and container, mainly be with optical system, flow guide system, be placed on the internal tank that fills the printing opacity cooling liquid with the heat dissipation system, when optical system is subjected to light source irradiation and after being heated, cooling liquid is taken away the heat of optical devices, and utilize flow guide system direct coolant body to flow, cause optical system with the liquid that temperature is low, the liquid that temperature is high causes the heat dissipation system cools, relends to help the heat dissipation system heat of Liquid Absorption is dissipated to outside the container.
According to one aspect of the present invention, a kind of cold part device of liquid crystal projector is provided, comprising:
One container, have a upper wall, a lower wall and can be for the front and back walls of light penetration, and this internal tank is equipped with can be for the liquid of light penetration, the front of this upper wall and this antetheca join, have by a plurality of outshots every a plurality of grooves, and lower wall have corresponding to upper wall front place by a plurality of outshots every groove;
One flow guide system is arranged in this container, comprises being located at a upper wall incident end flow deflector in front and an exit end flow deflector;
One optical system, be arranged in the container, comprise a liquid crystal panel, a combined prism, reach an inspection light polarization plate, wherein liquid crystal board is located between incident end flow deflector and the exit end flow deflector, combined prism is located at the appropriate location of container, and the inspection light polarization plate is located between exit end flow deflector and the combined prism; And
One heat dissipation system is arranged in the container, comprises a plurality of heat pipes that are arranged on the liquid crystal panel both sides, and heat pipe one end is the radiating part that is located at external container, and the other end is the absorbent portion that is located at internal tank.
Preferably, the upper wall outside also comprises a plurality of grooves; Following pars intramuralis also comprises a platform; Flow guide system also comprises a plurality of stirrers that are located at these grooves; Optical system comprises that also one is located at the outside of front wall and corresponding to the linear polarization polaroid of liquid crystal panel; The heat dissipation system also comprises the heat radiator that is located at the upper wall outside.
According to another aspect of the present invention, a kind of cooling device of liquid crystal projector is provided, comprising:
One container, have a upper wall, a lower wall and a plurality of for wall around the light penetration, and internal tank is equipped with can be for the liquid of light penetration, a plurality of peripheries of upper wall have by a plurality of outshots every a plurality of grooves, and lower wall also also have at periphery place corresponding to upper wall by a plurality of outshots every groove;
One flow guide system is arranged in the container, comprises a plurality of incident end flow deflectors and a plurality of exit end flow deflector corresponding to the upper wall periphery;
One optical system, be arranged in the container, comprise a plurality of liquid crystal panels, a combined prism, reach a plurality of inspection light polarization plates, wherein liquid crystal panel is located between incident end flow deflector and the exit end flow deflector, combined prism is corresponding to these liquid crystal panels, and be located at the appropriate position of container, and these inspection light polarization plates are located between these exit end flow deflectors and the combined prism; And
One heat dissipation system is arranged in the container, comprises a plurality of heat pipes that are arranged on the liquid crystal panel both sides, and heat pipe one end is the radiating part that is located at external container, and the other end is the absorbent portion that is located at internal tank.
Preferably, the upper wall outside also comprises a plurality of grooves; The lower wall outside also comprises a platform; Flow guide system also comprises a plurality of stirrers that are located at groove; Optical system also comprises and a plurality ofly is located at the outside of chamber wall and corresponding to the linear polarization polaroid of liquid crystal panel; The heat dissipation system also comprises the heat radiator that is located at the upper wall outside.
According to next aspect of the present invention, a kind of cooling device of liquid crystal projector is provided, comprising:
One container have a upper wall, a lower wall and a plurality of for wall around the light penetration, and internal tank is equipped with the liquid that can supply light penetration;
One flow guide system is arranged in the container, comprises being located at these a plurality of incident end flow deflectors and a plurality of exit end flow deflectors of wall all around;
One optical system, be arranged in the container, comprise a plurality of liquid crystal panels, a combined prism, reach a plurality of inspection light polarization plates, wherein liquid crystal panel is located between incident end flow deflector and the exit end flow deflector, combined prism is corresponding to these liquid crystal panels, and be located at the appropriate position of container, and these inspection light polarization plates are located between these exit end flow deflectors and the combined prism; And
One heat dissipation system is arranged in the container, comprises a plurality of heat pipes that are arranged on the liquid crystal panel top.
Preferably, the upper wall outside also comprises a plurality of grooves; The lower wall outside also includes a platform; Optical system also comprises and is located at the outside of chamber wall and corresponding to the linear polarization polaroid of liquid crystal panel; The heat dissipation system also comprises the heat radiator that is located at the upper wall outside.
For making purpose of the present invention, architectural feature and function thereof there are further understanding, now are described with reference to the accompanying drawings as follows:
Fig. 1 is the structural drawing of liquid crystal projector.
Fig. 2 is the exploded view of first embodiment of the invention.
Fig. 3 is the constitutional diagram of first embodiment of the invention.
Fig. 4 is the mobile synoptic diagram of the cooling liquid of first embodiment of the invention.
Fig. 5 is the diagrammatic cross-section and the mobile synoptic diagram of cooling liquid of second embodiment of the invention.
Fig. 6 is the diagrammatic cross-section and the mobile synoptic diagram of cooling liquid of third embodiment of the invention.
According to the cooling device of liquid crystal projector disclosed by the invention, be used for the heat of optical devices is taken away, comprising: container 10, flow guide system 20, optical system 30, and heat dissipation system 40 see also Fig. 2 and shown in Figure 3.
Optical system 30 comprises linear polarization polaroid 31, liquid crystal panel 32, combined prism 33 and inspection light polarization plate 34, wherein linear polarization polaroid 31 is attached to corresponding flow deflector 21, container 10 transparent walls 11 of the position of 22 photic zones 211, and liquid crystal panel 32, combined prism 33 and inspection light polarization plate 34 all are positioned at the inside of container 10, liquid crystal panel 32 is located at paired flow deflector 21, between 22 photic zones 211, and incident end flow deflector 21 blocks the two sides between the transparent wall 11 of the plane of incidence of liquid crystal panel 32 and container 10, to constitute the flow channel of a sealing, exit end flow deflector 22 then is that the two sides between the exit facet of liquid crystal panel 32 and the inspection light polarization plate 34 are blocked, to constitute the flow channel of a sealing; Combined prism 33 is arranged on the platform 131 of container 10 lower walls 13, and inspection light polarization plate 34 then is attached on the combined prism 33, and corresponding to the photic zone 211 of exit end flow deflector 22.
After the light path of liquid crystal projector imports the linear polarization polaroid 31 that is positioned at container 10 3 sides respectively with red, blue, green three coloured light, light is again via the transparent wall 11 of container 10, behind the photic zone 211 of the photic zone 211 by incident end flow deflector 21, liquid crystal panel 32, exit end flow deflector 22 and the inspection light polarization plate 34, via combined prism 33 three coloured light are made up, light after this combination is just penetrated by the side that the inspection light polarization plate is not set on the combined prism, entering camera lens, with the image projecting after the combination to screen.
As shown in Figure 4, when three coloured light respectively by liquid crystal panel 32, inspection light polarization plate 34 and combined prism 33 time, liquid crystal panel 32 and inspection light polarization plate 34 can absorb partly light and the rising temperature.Because cooling liquid is taken away three's heat, thereby make cooling liquid produce natural convection, allow the high cooling liquid of temperature upwards flow, and cooling liquid is shunted by teat 121, so that the groove 122 along upper wall 12 is mobile respectively, and by the absorbent portion 412 of heat pipe 41 with cooling liquid with heat absorption, and the temperature of cooling liquid is reduced, and liquid coolant is known from experience the action of gravity that is subjected to itself and is flowed downward at this moment, thereby cooling liquid collaborates through groove 122 and by the guiding of teat 121, again in the runner by liquid crystal panel 32 and inspection light polarization plate 34, so promptly finish a cool cycles, and the absorbent portion 412 of heat pipe 41 just reaches heat rapidly radiating part 411 behind the heat that absorbs cooling liquid, conduct to heat radiator 42 again, with the outside of heat dissipation to container 10.
As shown in Figure 5, second embodiment of the invention is that groove 122 places in flow channel add stirrer 35, to quicken flowing of cooling liquid, the liquid coolant physical efficiency is taken away heat fast.
The third embodiment of the present invention comprise container 10, optical system 30, and heat dissipation system 40 and the first embodiment difference shown in Figure 2 see also shown in Figure 6.
Similar with first embodiment shown in Figure 2, the container 10 of the 3rd embodiment also includes transparent wall 11, upper wall 12 and lower wall 13, and the inner cooling liquid that printing opacity is housed, transparent wall 11 is that four sides of container 10,12,13 on upper and lower wall are the above and below of container 10, and lower wall 13 has the platform 131 that is positioned at its inwall central authorities.
And, optical system 30 includes linear polarization polaroid 31, liquid crystal panel 32, combined prism 33, reaches inspection light polarization plate 34, wherein linear polarization polaroid 31 is attached to the transparent wall 11 of container 10, and liquid crystal panel 32, combined prism 33 and inspection light polarization plate 34 all are positioned at the inside of container 10, liquid crystal panel 32 is corresponding to linear polarization polaroid 31 and be located at the inside of container 10 transparent walls 11, combined prism 33 is arranged on the platform 131 of container 10 lower walls 13, inspection light polarization plate 34 then is attached on the combined prism 33, and corresponding to liquid crystal panel 32.
After the light path of liquid crystal projector imports the linear polarization polaroid 31 that is positioned at container 10 3 sides respectively with red, blue, green three coloured light, light is again via the transparent wall 11 of container 10, behind liquid crystal panel 32 and inspection light polarization plate 34, via combined prism 33 three coloured light are made up, light after this combination is just penetrated by the side that the inspection light polarization plate is not set on the combined prism, entering camera lens, with the image projecting after the combination to screen.
When three coloured light are passing through liquid crystal panel 32 respectively, when inspection light polarization plate 34 and combined prism 33, liquid crystal panel 32 and inspection light polarization plate 34 can absorb part light and the rising temperature, because liquid coolant is known from experience the heat of the two is taken away, thereby the high cooling liquid of temperature is upwards flowed, and by heat pipe 41 with cooling liquid with heat absorption, and the temperature of cooling liquid is reduced, thereby liquid coolant is known from experience the action of gravity that is subjected to itself and is flowed downward at this moment, and absorb the two heat once more, and heat pipe 41 is behind the heat that absorbs cooling liquid, just heat is conducted to heat radiator 42 rapidly, with the outside of heat dissipation to container 10.
Effect according to the cooling device of liquid crystal projector disclosed by the invention is as follows:
1. make the temperature cooling of liquid crystal panel, the temperature that can avoid taking place liquid crystal panel too high so that lower its life-span, can't on screen, demonstrate picture rich in detail, and liquid crystal panel lose the situation of regulating light.
2. make the temperature cooling of liquid crystal panel can avoid reducing the contrast that is presented at the image on the screen.
3. because size of the present invention is little, therefore very light, and be convenient to the user and carry.
4. because size of the present invention is little, therefore be applicable to liquid crystal projector small-sized and that brightness is high.
The above is the preferred embodiment of the present invention only, is not to be used for limiting practical range of the present invention; It all is covering of the present invention that all equivalences of doing according to claims of the present invention change with improving.
Claims (17)
1. the cold part device of a liquid crystal projector is characterized in that comprising:
One container, have a upper wall, a lower wall and can be for the front and back walls of light penetration, and this internal tank is equipped with can be for the liquid of light penetration, the front of this upper wall and this antetheca join, have by a plurality of outshots every a plurality of grooves, and lower wall have corresponding to upper wall front place by a plurality of outshots every groove;
One flow guide system is arranged in this container, comprises being located at a upper wall incident end flow deflector in front and an exit end flow deflector;
One optical system, be arranged in the container, comprise a liquid crystal panel, a combined prism, reach an inspection light polarization plate, wherein liquid crystal board is located between incident end flow deflector and the exit end flow deflector, combined prism is located at the appropriate location of container, and the inspection light polarization plate is located between exit end flow deflector and the combined prism; And
One heat dissipation system is arranged in the container, comprises a plurality of heat pipes that are arranged on the liquid crystal panel both sides, and heat pipe one end is the radiating part that is located at external container, and the other end is the absorbent portion that is located at internal tank.
2. the cooling device of liquid crystal projector according to claim 1 is characterized in that this upper wall outside also comprises a plurality of grooves.
3. the cooling device of liquid crystal projector according to claim 1 is characterized in that this time pars intramuralis also comprises a platform.
4. the cooling device of liquid crystal projector according to claim 1 is characterized in that this flow guide system also includes a plurality of stirrers that are located at these grooves.
5. the cooling device of liquid crystal projector according to claim 1 is characterized in that this optical system comprises that also one is located at the outside of front wall and corresponding to the linear polarization polaroid of liquid crystal panel.
6. the cooling device of liquid crystal projector according to claim 1 is characterized in that this heat dissipation system also comprises the heat radiator that is located at the upper wall outside.
7. the cooling device of a liquid crystal projector is characterized in that comprising:
One container, have a upper wall, a lower wall and a plurality of for wall around the light penetration, and internal tank is equipped with can be for the liquid of light penetration, a plurality of peripheries of upper wall have by a plurality of outshots every a plurality of grooves, and lower wall also also have at periphery place corresponding to upper wall by a plurality of outshots every groove;
One flow guide system is arranged in the container, comprises a plurality of incident end flow deflectors and a plurality of exit end flow deflector corresponding to the upper wall periphery;
One optical system, be arranged in the container, comprise a plurality of liquid crystal panels, a combined prism, reach a plurality of inspection light polarization plates, wherein liquid crystal panel is located between incident end flow deflector and the exit end flow deflector, combined prism is corresponding to these liquid crystal panels, and be located at the appropriate position of container, and these inspection light polarization plates are located between these exit end flow deflectors and the combined prism; And
One heat dissipation system is arranged in the container, comprises a plurality of heat pipes that are arranged on the liquid crystal panel both sides, and heat pipe one end is the radiating part that is located at external container, and the other end is the absorbent portion that is located at internal tank.
8. as the cooling device of liquid crystal projector as described in the claim 7, it is characterized in that this upper wall outside also comprises a plurality of grooves.
9. as the cooling device of liquid crystal projector as described in the claim 7, it is characterized in that this lower wall outside also comprises a platform.
10. as the cooling device of liquid crystal projector as described in the claim 7, it is characterized in that this flow guide system also comprises a plurality of stirrers that are located at groove.
11., it is characterized in that this optical system also comprises a plurality ofly to be located at the outside of chamber wall and corresponding to the linear polarization polaroid of liquid crystal panel as the cooling device of liquid crystal projector as described in the claim 7.
12. the cooling device as liquid crystal projector as described in the claim 7 is characterized in that this heat dissipation system also comprises the heat radiator that is located at the upper wall outside.
13. the cooling device of a liquid crystal projector is characterized in that comprising:
One container have a upper wall, a lower wall and a plurality of for wall around the light penetration, and internal tank is equipped with the liquid that can supply light penetration;
One flow guide system is arranged in the container, comprises being located at these a plurality of incident end flow deflectors and a plurality of exit end flow deflectors of wall all around;
One optical system, be arranged in the container, comprise a plurality of liquid crystal panels, a combined prism, reach a plurality of inspection light polarization plates, wherein liquid crystal panel is located between incident end flow deflector and the exit end flow deflector, combined prism is corresponding to these liquid crystal panels, and be located at the appropriate position of container, and these inspection light polarization plates are located between these exit end flow deflectors and the combined prism; And
One heat dissipation system is arranged in the container, comprises a plurality of heat pipes that are arranged on the liquid crystal panel top.
14. the cooling device as liquid crystal projector as described in the claim 13 is characterized in that this upper wall outside also comprises a plurality of grooves.
15. the cooling device as liquid crystal projector as described in the claim 13 is characterized in that the lower wall outside also includes a platform.
16., it is characterized in that this optical system also comprises to be located at the outside of chamber wall and corresponding to the linear polarization polaroid of liquid crystal panel as the cooling device of liquid crystal projector as described in the claim 13.
17. the cooling device as liquid crystal projector as described in the claim 13 is characterized in that this heat dissipation system also comprises the heat radiator that is located at the upper wall outside.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01110668 CN1381765A (en) | 2001-04-16 | 2001-04-16 | LCD projector cooling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01110668 CN1381765A (en) | 2001-04-16 | 2001-04-16 | LCD projector cooling device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1381765A true CN1381765A (en) | 2002-11-27 |
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ID=4658745
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01110668 Pending CN1381765A (en) | 2001-04-16 | 2001-04-16 | LCD projector cooling device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1381765A (en) |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100334502C (en) * | 2003-12-26 | 2007-08-29 | 精工爱普生株式会社 | Optical modulator holder, optical device, and projector |
| CN100416404C (en) * | 2004-11-04 | 2008-09-03 | 精工爱普生株式会社 | Optics and projectors |
| CN100416403C (en) * | 2003-06-20 | 2008-09-03 | 株式会社日立制作所 | LCD projector |
| CN100416405C (en) * | 2004-01-13 | 2008-09-03 | 精工爱普生株式会社 | Light source device and projection display device |
| CN100545739C (en) * | 2003-10-10 | 2009-09-30 | 精工爱普生株式会社 | Projector with a light source |
| CN1944978B (en) * | 2005-09-28 | 2010-07-28 | 三洋电机株式会社 | liquid cooling device |
| CN101154027B (en) * | 2006-09-29 | 2010-09-01 | 精工爱普生株式会社 | Optical device and projection machine |
| CN102089707B (en) * | 2008-03-26 | 2012-07-18 | 日本电气株式会社 | projector |
| CN105807545A (en) * | 2016-05-13 | 2016-07-27 | 深圳市毅丰光电科技有限公司 | Temperature control system and method for projector, and projector |
| CN107153321A (en) * | 2017-07-25 | 2017-09-12 | 新乡医学院 | A kind of LCD projector of long-time high stable |
| CN108445699A (en) * | 2015-05-12 | 2018-08-24 | 苏州佳世达光电有限公司 | Projection arrangement |
| CN109557749A (en) * | 2017-09-27 | 2019-04-02 | 精工爱普生株式会社 | Projector |
| CN110095925A (en) * | 2018-01-30 | 2019-08-06 | 精工爱普生株式会社 | Projector and method of controlling operation |
| CN112585534A (en) * | 2018-08-27 | 2021-03-30 | 索尼公司 | Wavelength conversion element, light source module and projection display device |
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2001
- 2001-04-16 CN CN 01110668 patent/CN1381765A/en active Pending
Cited By (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100416403C (en) * | 2003-06-20 | 2008-09-03 | 株式会社日立制作所 | LCD projector |
| CN100545739C (en) * | 2003-10-10 | 2009-09-30 | 精工爱普生株式会社 | Projector with a light source |
| CN100334502C (en) * | 2003-12-26 | 2007-08-29 | 精工爱普生株式会社 | Optical modulator holder, optical device, and projector |
| CN100416405C (en) * | 2004-01-13 | 2008-09-03 | 精工爱普生株式会社 | Light source device and projection display device |
| CN100416404C (en) * | 2004-11-04 | 2008-09-03 | 精工爱普生株式会社 | Optics and projectors |
| CN1944978B (en) * | 2005-09-28 | 2010-07-28 | 三洋电机株式会社 | liquid cooling device |
| CN101154027B (en) * | 2006-09-29 | 2010-09-01 | 精工爱普生株式会社 | Optical device and projection machine |
| CN102089707B (en) * | 2008-03-26 | 2012-07-18 | 日本电气株式会社 | projector |
| CN108445699A (en) * | 2015-05-12 | 2018-08-24 | 苏州佳世达光电有限公司 | Projection arrangement |
| CN105807545A (en) * | 2016-05-13 | 2016-07-27 | 深圳市毅丰光电科技有限公司 | Temperature control system and method for projector, and projector |
| CN107153321A (en) * | 2017-07-25 | 2017-09-12 | 新乡医学院 | A kind of LCD projector of long-time high stable |
| CN107153321B (en) * | 2017-07-25 | 2019-09-24 | 新乡医学院 | A kind of LCD projector of long-time high stable |
| CN109557749A (en) * | 2017-09-27 | 2019-04-02 | 精工爱普生株式会社 | Projector |
| CN109557749B (en) * | 2017-09-27 | 2021-11-12 | 精工爱普生株式会社 | Projector with a light source |
| CN110095925A (en) * | 2018-01-30 | 2019-08-06 | 精工爱普生株式会社 | Projector and method of controlling operation |
| CN110095925B (en) * | 2018-01-30 | 2022-04-08 | 精工爱普生株式会社 | Projector and operation control method |
| CN112585534A (en) * | 2018-08-27 | 2021-03-30 | 索尼公司 | Wavelength conversion element, light source module and projection display device |
| CN112585534B (en) * | 2018-08-27 | 2022-10-04 | 索尼公司 | Wavelength conversion element, light source module and projection display device |
| US11868033B2 (en) | 2018-08-27 | 2024-01-09 | Sony Group Corporation | Wavelength conversion element and light source module and projection display device |
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