CN101593924B - Decoherence device - Google Patents
Decoherence device Download PDFInfo
- Publication number
- CN101593924B CN101593924B CN200810113238XA CN200810113238A CN101593924B CN 101593924 B CN101593924 B CN 101593924B CN 200810113238X A CN200810113238X A CN 200810113238XA CN 200810113238 A CN200810113238 A CN 200810113238A CN 101593924 B CN101593924 B CN 101593924B
- Authority
- CN
- China
- Prior art keywords
- laser
- chamber
- eliminating coherence
- coherence device
- refrigerating chamber
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000010438 heat treatment Methods 0.000 claims description 43
- 230000009466 transformation Effects 0.000 claims description 22
- 238000007639 printing Methods 0.000 claims description 17
- 230000003287 optical effect Effects 0.000 claims description 15
- 239000000463 material Substances 0.000 claims description 10
- 239000007788 liquid Substances 0.000 claims description 9
- 238000007789 sealing Methods 0.000 claims description 5
- 239000011810 insulating material Substances 0.000 claims description 4
- 241000931526 Acer campestre Species 0.000 claims description 3
- 239000004065 semiconductor Substances 0.000 claims description 3
- 230000005540 biological transmission Effects 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 10
- 238000000034 method Methods 0.000 abstract description 5
- 230000008859 change Effects 0.000 abstract description 3
- 230000008569 process Effects 0.000 abstract description 3
- 238000001816 cooling Methods 0.000 abstract 1
- 125000004122 cyclic group Chemical group 0.000 abstract 1
- 239000002918 waste heat Substances 0.000 abstract 1
- 239000012071 phase Substances 0.000 description 20
- 239000000243 solution Substances 0.000 description 3
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- AMXOYNBUYSYVKV-UHFFFAOYSA-M lithium bromide Chemical compound [Li+].[Br-] AMXOYNBUYSYVKV-UHFFFAOYSA-M 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 239000004606 Fillers/Extenders Substances 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- 229920006351 engineering plastic Polymers 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 229910052738 indium Inorganic materials 0.000 description 1
- APFVFJFRJDLVQX-UHFFFAOYSA-N indium atom Chemical compound [In] APFVFJFRJDLVQX-UHFFFAOYSA-N 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 229940059936 lithium bromide Drugs 0.000 description 1
- 210000003141 lower extremity Anatomy 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000011259 mixed solution Substances 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 229920003229 poly(methyl methacrylate) Polymers 0.000 description 1
- 239000004926 polymethyl methacrylate Substances 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- -1 polytetrafluoroethylene Polymers 0.000 description 1
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 1
- 239000004810 polytetrafluoroethylene Substances 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000000741 silica gel Substances 0.000 description 1
- 229910002027 silica gel Inorganic materials 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Abstract
The invention provides a device which uses waste heat produced when a laser works to reasonably eliminate laser coherence. The invention uses heat produced when a laser works to heat phase change working medium, and realizes decoherence process to laser beams generated by a laser via cyclic motion of working medium in an annular cavity; thus, the invention not only reasonably uses resources, but also designs a cooling device with a decoherence device together so as to ensure compact structure of a laser display device as well as obtain better decoherence effect.
Description
Technical field
The present invention relates to the laser display field, relate in particular to a kind of eliminating coherence device that is used for laser.
Background technology
Laser is because its high brightness, monochromaticjty, directivity and have incomparable advantage in the demonstration field.Laser has the coherence, directly carry out projection if it is not carried out the eliminating coherence processing as light source, we can see the image that has tangible interference fringe on receiving screen, it is so-called speckle, influence so very much picture quality, therefore in laser display technology, the eliminating coherence step that is absolutely necessary one.The method of eliminating coherence has vibration screen, vibration optical frames, uses the rotation diffuse reflector or adopts holographic method or the like at present.But these systems all are independent device, so the structure relative complex.
Summary of the invention
At above-mentioned deficiency, the invention provides a kind of eliminating coherence device that is used for laser, comprise,
Heating chamber is used to absorb the heat that described laser sends, and the phase transformation working media that is opposite in it heats;
The printing opacity chamber is used to transmit described phase transformation working media, and the laser that sends of the described laser of transmission.
Refrigerating chamber is used to cool off described phase transformation working media.
Wherein, described heating chamber, described printing opacity chamber and described refrigerating chamber are linked in sequence, and constitute the annular housing of sealing, and described phase transformation working media circulates in described annular housing; Described phase transformation working media is a gas by liquid phase-change in heating chamber, described gas through the printing opacity chamber after, in refrigerating chamber, become liquid mutually by gas.
The above-mentioned eliminating coherence device that is used for laser is provided with in wherein said refrigerating chamber and the described heating chamber and inhales loading matter.
The above-mentioned eliminating coherence device that is used for laser, the side that the bottom of wherein said refrigerating chamber and described heating chamber link to each other with refrigerating chamber are full of described suction loading matter.
The above-mentioned eliminating coherence device that is used for laser, wherein said printing opacity chamber is made up of two blocks of parallel transmitted light plates that the upper and lower opening both sides are tightly connected each other.
The above-mentioned eliminating coherence device that is used for laser, wherein said light-passing board are coated with the anti-reflection film at described laser output optical maser wavelength.
The above-mentioned eliminating coherence device that is used for laser, wherein said light-passing board is the lens with optical function.
The above-mentioned eliminating coherence device that is used for laser wherein also comprises the gas disturbance device.
The above-mentioned eliminating coherence device that is used for laser wherein also comprises radiator, described radiator and described refrigerating chamber hot link.
The above-mentioned eliminating coherence device that is used for laser wherein also comprises being arranged between described heating chamber and the described laser and the semiconductor chilling plate that is used for temperature control between described refrigerating chamber and the described radiator.
The above-mentioned eliminating coherence device that is used for laser, air guide chamber or wireway that wherein said printing opacity chamber and described refrigerating chamber are made by low thermal conductivity material or heat-insulating material are connected and sealed.
The above-mentioned eliminating coherence device that is used for laser, the catheter that wherein said refrigerating chamber and described heating chamber are made by low thermal conductivity material or heat-insulating material is connected and sealed.
The above-mentioned eliminating coherence device that is used for laser, the wherein said heating chamber outside has adiabatic covering.
The above-mentioned eliminating coherence device that is used for laser, wherein, the bottom in described printing opacity chamber is provided with silk screen.
Adopt the technical program, the used heat that can rationally utilize laser to produce drives the eliminating coherence device, thereby both reasonably utilized resource, again heat abstractor is designed dexterously with the eliminating coherence device and be in the same place, and corresponding light-passing board can use the respective lens in the laser subsequent optical path to form, this design makes the laser display apparatus structure more compact, and reaches the effect of eliminating coherence preferably again.
Description of drawings
Fig. 1 is the structural representation of an embodiment of eliminating coherence device of the present invention.
Embodiment
The present invention is further illustrated below in conjunction with the drawings and specific embodiments.
Fig. 1 is the structural representation of an embodiment of eliminating coherence device of the present invention.
The eliminating coherence device of present embodiment is used for laser 101, and its structure comprises: semiconductor chilling plate (TEC) 102,103, heating chamber 104, catheter 105, air guide chamber 106, refrigerating chamber 107, light-passing board 108,109, adiabatic covering 111 and heat abstractor 112.The cold junction face of TEC102 and the bottom hot link of laser 101, the hot junction face of TEC102 and heating chamber 104 hot links.Wherein, the bottom of laser 101 can also be provided with heat sink, and TEC102 is heat sink and laser 101 hot links by this.The front end of heating chamber 104 (defining laser light-emitting window one end here is front end) extends to the light-passing board 108 and 109 that is used for laser emitting always.Light- passing board 108 and 109 last lower limb are tightly connected with the chamber wall of air guide chamber 106 and heating chamber 104 respectively, both sides except that transparent surface then by with trim ring fixedly the mode of rubber sheet gasket or alternate manner realize sealing and adiabatic (not shown), thereby constitute the cavity (hereinafter referred to as the printing opacity chamber) that upper and lower opening seals all around.Light- passing board 108 and 109 place vertical with laser optical path, light-passing board is parallel to each other.Air gap between the light-passing board 108 and 109 can be 0.1mm-10cm, and concrete distance is according to the power of laser and change to some extent, or the needs of the concrete optical function of realizing according to the light-passing board needs are decided.As shown in FIG., the rear end in air guide chamber 106 links to each other with refrigerating chamber 107.The cold junction face hot link of left end sidewall of refrigerating chamber 107 (away from a side of laser 101) and TEC103, the bottom of refrigerating chamber 107 is connected with heating chamber 104 by catheter 105.The hot junction face of TEC103 is with heat abstractor 112 hot links, and heat abstractor 112 can be for example traditional heat-dissipating such as fin or radiator fan mode.The outside of heating chamber 104 (away from a side of laser 101) is surrounded by adiabatic covering 111.Wherein, the inside of refrigerating chamber 107 and catheter 105 is placed with can inhale the material (be called for short and inhale loading matter) that carries the phase transformation working media, and the suction loading matter in the refrigerating chamber 107 can all be full of, and also can leave one section cavity in the upper end.The inside of one section cavity (being preferably half) of the side that while heating chamber 104 is connected with catheter 105 also is placed with inhales loading matter, sponge for example, inhaling of fine quality being selected in the cavity of loading is connected as one, and be advisable to be full of the cavity internal diameter, like this after inhaling the liquid phase transformation working media of loading matter suction, can realize airtight, thereby can realize partition effect in the torus.
In addition, described hot link place can use that heat conductive silica gel, silicone grease or indium are thin etc. to be used for heat conduction better.Heating chamber 104 and refrigerating chamber 107 can adopt the high material of thermal conductivity to make, for example red copper, aluminium, aluminium alloy, heat-conducting plastic, thermal conductive ceramic etc.Adiabatic covering 111, catheter 105 and air guide chamber 106 are made by thermal conductivity low material or heat-barrier material, can be polytetrafluoroethylene, polyurethane, engineering plastics PVC or polymethyl methacrylate etc.Two light-passing boards can be made for general transparent glass, also can one of them or all be set to have the lens of certain optical function, be equivalent to respective lens or set of lenses in the subsequent optical path of laser, for example lens such as collimating lens, condenser lens, extender lens.When light-passing board is the lens of certain function, must be provided with according to the optical function of concrete light path situation and realization two light-passing boards the position and between distance.Adopt such design sufficiently and reasonably to design laser optical path, make light path more compact.In addition, the logical optical surface of light-passing board can select to be coated with the anti-reflection film at laser 101 output optical maser wavelength high permeabilities, can also plate the rete of one deck protectiveness according to the character of phase transformation working media.Whole sealing and circulating is placed with the phase transformation working media in the chamber, and the phase transformation working media adopts the organic or inorganic solution that thermal capacitance is big, latent heat of phase change is big, as lithium-bromide solution, water, ethanol, ether etc. or by the above mixed solution that both form.In conjunction with the working temperature of TEC, cavity is controlled at makes under the pressure that corresponding phase transformation working media undergoes phase transition.
When laser 101 work, the heat that laser 101 sends transfers to heating chamber 104 by TEC102, when the TEC102 realization is carried out temperature control and heat radiation to laser 101 heating chamber 104 is heated.The inside of one section cavity of the side that heating chamber 104 rear ends are connected with catheter 105 has been full of and has inhaled the suction loading matter that the liquid phase-change working media is arranged, and the inside that the cavity of the close front end of inhaling loading matter is not housed then is the phase transformation working media of gaseous state.After phase transformation working media in the heating chamber 104 absorbs heat, in heating chamber 104, undergo phase transition, from liquid phase-change is gas, gas stream is via transparent panel 108 and the 109 printing opacity chambeies that form, continue rising and import air guide chamber 106, arrive then the refrigerating chamber 107 of inhaling loading matter is housed, refrigerating chamber 107 freezes under the effect of TEC103 and external heat abstractor 112 thereof, thereby the phase transformation working media becomes liquid at this mutually from gas, flow into and inhale loading matter, flow in the heating chamber 104 by catheter 105 again, thereby form the phase transformation circulation.Usually TEC102 adopts identical model and temperature control with TEC103, because the hot junction face of TEC102 links to each other with heating chamber 104, the cold junction face of TEC103 links to each other with refrigerating chamber 107, thereby guarantee that can there be the temperature difference in heating chamber 104 and refrigerating chamber 107, and because heating chamber 104 and refrigerating chamber 107 all adopt the high material of thermal conductivity to make, so being set, a catheter 105 connects heating chamber 104 and refrigerating chamber 107, to guarantee the stable of the temperature difference.Certainly, also can adopt the TEC of different model as the case may be.And, after the suction loading matter of the inside of one section cavity of refrigerating chamber 107, catheter 105 and heating chamber 104 rear ends is full of continuously by the phase transformation working media of liquid state, thereby make the rear end in air guide chamber 106 and heating chamber 104 back-end realization isolation, so make both produce pressure reduction.Guarantee at the same time under the situation of the pressure reduction and the temperature difference, finally in the sealing and circulating chamber that constitutes by heating chamber, printing opacity chamber, air guide chamber, refrigerating chamber and catheter, formed a fixing phase transformation loop direction.Laser is in seeing through light- passing board 108 and 109 processes, because there is mobile gas process light-passing board 108 and 109 centres, thereby laser has been produced phase effect, has reached the effect that weakens or eliminate laser coherence.
In order to allow the better effects if of eliminating coherence, can allow by the gas density between light-passing board 108 and 109 more inhomogeneously, can be provided for increasing the gas disturbance device of gas disturbance, for example, can adopt the small fan of chamber interior arrangement; Perhaps the part that does not influence light path in the bottom of light-passing board 108 and 109 is made the burr shape, when gas passes through, then produces fluctuation thus; Two syringe needles that symmetry is blown can also be housed in the bottom of light-passing board 108 and 109, equally also can reach the effect of disturbance gas, thereby reach better eliminating coherence effect.In addition,, except the quality that guarantees plated film as much as possible, can also between light- passing board 108 and 109 bottoms, be provided with silk screen, utilize effects such as liquid tension, the interception aqueous vapor in order to allow on light-passing board 108 and 109 not dewfall.
Need to prove, though heating chamber, printing opacity chamber, air guide chamber, refrigerating chamber and catheter have constituted whole closed ring chamber in the foregoing description, catheter can be integrated in heating chamber or the refrigerating chamber fully, and does not need to be provided with separately catheter but in actual applications.The heating chamber that always extends to light-passing board also can be divided into two parts, a part is for being positioned at the heating chamber bottom the TEC102, the connection chamber of another part, be used for heating chamber is linked to each other with light-passing board, the main purpose that adds connection chamber is, may in the encapsulation of light-passing board, there be the bad situations about linking to each other of material such as metal and glass, adopt a connection chamber to connect heating chamber and light-passing board like this, thereby easier realization be tightly connected.In addition, the air guide chamber mainly is in order to guarantee being tightly connected between described refrigerating chamber and the described printing opacity chamber, the structure that it can also adopt wireway etc. to be fit to.
Eliminating coherence device of the present invention is particularly useful for the LASER Light Source in the laser display system, is used for reducing or eliminating the laser speckle that laser display produces.
It should be noted last that above embodiment is only unrestricted in order to technical scheme of the present invention to be described.Although the present invention is had been described in detail with reference to embodiment, those of ordinary skill in the art is to be understood that, technical scheme of the present invention is made amendment or is equal to replacement, do not break away from the spirit and scope of technical solution of the present invention, it all should be encompassed in the middle of the claim scope of the present invention.
Claims (14)
1. an eliminating coherence device that is used for laser comprises,
Heating chamber is used to absorb the heat that described laser sends, and the phase transformation working media that is opposite in it heats;
The printing opacity chamber is used to transmit described phase transformation working media, and the laser that sends of the described laser of transmission;
Refrigerating chamber is used to cool off described phase transformation working media;
Wherein, described heating chamber, described printing opacity chamber and described refrigerating chamber are linked in sequence, and constitute the annular housing of sealing, and described phase transformation working media circulates in described annular housing; Described phase transformation working media is a gas by liquid phase-change in heating chamber, described gas through the printing opacity chamber after, in refrigerating chamber, become liquid mutually by gas.
2. the described eliminating coherence device that is used for laser of claim 1 is provided with in wherein said refrigerating chamber and the described heating chamber and inhales loading matter.
3. the described eliminating coherence device that is used for laser of claim 2, the side that the bottom of wherein said refrigerating chamber and described heating chamber link to each other with refrigerating chamber is full of described suction loading matter.
4. the described eliminating coherence device that is used for laser of one of claim 1-3, wherein said printing opacity chamber is made up of two blocks of parallel transmitted light plates that the upper and lower opening both sides are tightly connected each other.
5. the described eliminating coherence device that is used for laser of claim 4, wherein said light-passing board are coated with the anti-reflection film at described laser output optical maser wavelength.
6. the described eliminating coherence device that is used for laser of claim 4, wherein said light-passing board is the lens with optical function.
7. the described eliminating coherence device that is used for laser of claim 5, wherein said light-passing board is the lens with optical function.
8. the described eliminating coherence device that is used for laser of claim 1 wherein also comprises the gas disturbance device.
9. the described eliminating coherence device that is used for laser of claim 1 wherein also comprises radiator, described radiator and described refrigerating chamber hot link.
10. the described eliminating coherence device that is used for laser of claim 9 wherein also comprises being arranged between described heating chamber and the described laser and the semiconductor chilling plate that is used for temperature control between described refrigerating chamber and the described radiator.
11. the described eliminating coherence device that is used for laser of claim 1, air guide chamber or wireway that wherein said printing opacity chamber and described refrigerating chamber are made by low thermal conductivity material or heat-insulating material are connected and sealed.
12. the described eliminating coherence device that is used for laser of claim 1, the catheter that wherein said refrigerating chamber and described heating chamber are made by low thermal conductivity material or heat-insulating material is connected and sealed.
13. the described eliminating coherence device that is used for laser of claim 1, the wherein said heating chamber outside has adiabatic covering.
14. the described eliminating coherence device that is used for laser of claim 1, wherein, the bottom in described printing opacity chamber is provided with silk screen.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810113238XA CN101593924B (en) | 2008-05-28 | 2008-05-28 | Decoherence device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810113238XA CN101593924B (en) | 2008-05-28 | 2008-05-28 | Decoherence device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101593924A CN101593924A (en) | 2009-12-02 |
| CN101593924B true CN101593924B (en) | 2011-02-09 |
Family
ID=41408447
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200810113238XA Expired - Fee Related CN101593924B (en) | 2008-05-28 | 2008-05-28 | Decoherence device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101593924B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105093559B (en) * | 2014-05-15 | 2017-07-28 | 中国科学院理化技术研究所 | A kind of eliminating coherence device |
| CN105242407A (en) * | 2015-10-22 | 2016-01-13 | 北京工业大学 | Laser display speckle inhibiting device |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1734308A (en) * | 2004-08-13 | 2006-02-15 | 中国科学院光电技术研究所 | A kind of optical wand-type laser eliminating coherence uniform illumination system |
| CN100334480C (en) * | 2004-07-16 | 2007-08-29 | 中国科学院物理研究所 | Laser color display device possessing three primary colors of red, green and blue |
| CN201274371Y (en) * | 2008-05-28 | 2009-07-15 | 北京中视中科光电技术有限公司 | A decoherence device |
-
2008
- 2008-05-28 CN CN200810113238XA patent/CN101593924B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100334480C (en) * | 2004-07-16 | 2007-08-29 | 中国科学院物理研究所 | Laser color display device possessing three primary colors of red, green and blue |
| CN1734308A (en) * | 2004-08-13 | 2006-02-15 | 中国科学院光电技术研究所 | A kind of optical wand-type laser eliminating coherence uniform illumination system |
| CN201274371Y (en) * | 2008-05-28 | 2009-07-15 | 北京中视中科光电技术有限公司 | A decoherence device |
Non-Patent Citations (1)
| Title |
|---|
| JP特开2001-60550A 2001.03.06 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101593924A (en) | 2009-12-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103582909B (en) | Display device | |
| JP5273636B2 (en) | Optical system and projection device | |
| CN105301910B (en) | UV LED lights source structure and parallel smooth exposure machine | |
| CN109068115A (en) | A kind of novel projector structure | |
| CN203870394U (en) | UV LED light source structure and parallel-light exposure machine | |
| CN101593924B (en) | Decoherence device | |
| CN206180363U (en) | Temperature controller for laser instrument | |
| JP2009163075A (en) | Projection type video display apparatus | |
| CN201274371Y (en) | A decoherence device | |
| JPH04125538A (en) | Cooling device for polarizing plate and liquid crystal panel | |
| CN209151290U (en) | A kind of novel projector structure | |
| CN104197219B (en) | A kind of LED bulb | |
| CN101527424B (en) | Laser light source | |
| CN217772297U (en) | Endoscope camera handle | |
| CN103257518B (en) | Multi-screen display device | |
| CN208399876U (en) | Cycle refrigeration system in a kind of electronic projection apparatus | |
| CN205227130U (en) | LED -COB car light | |
| CN207424506U (en) | Heat radiation system of projector | |
| CN203688954U (en) | Zooming mechanism for security and protection illumination | |
| CN103512668B (en) | A kind of infrared image and the double-mode integrated imaging detection chip of wavefront | |
| IT201600069274A1 (en) | System for the thermal control of an electronic panel for the reproduction of images | |
| CN201174500Y (en) | Laser source | |
| TWI778817B (en) | Projection device | |
| CN108957920A (en) | A kind of high power illumination dmd chip circulation foamed material liquid cooling device | |
| CN210831890U (en) | Heat dissipation device suitable for fluorescent color wheel and light source sealed cavity |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: ZHONGSHI DIWEI LASER DISPLAY TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: OPTOELECTRONICS TECHNOLOGY CO., LTD. OF BEIJING ZHONGSHIDA + CHINESE ACADEMY OF Effective date: 20120329 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 100094 HAIDIAN, BEIJING TO: 100176 DAXING, BEIJING |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20120329 Address after: 100176, Beijing Beijing economic and Technological Development Zone, No. five, No. 58, Hai Lu, No. 3, building 1 Patentee after: SINOLASER PROJECTION TECHNOLOGY CO., LTD. Address before: 100094, Haidian District, Yongfeng hi tech industrial base, 3 North Wing Road, modern enterprise accelerator B block, 5 floor, Beijing Patentee before: Optoelectronics Technology Co., Ltd. Of Beijing Zhongshida & Chinese Academy Of |
|
| C56 | Change in the name or address of the patentee | ||
| CP02 | Change in the address of a patent holder |
Address after: 100176 3, building 3, 304 North Yongchang Road, Beijing economic and Technological Development Zone, Beijing, China Patentee after: SINOLASER PROJECTION TECHNOLOGY CO., LTD. Address before: 100176, Beijing Beijing economic and Technological Development Zone, No. five, No. 58, Hai Lu, No. 3, building 1 Patentee before: SINOLASER PROJECTION TECHNOLOGY CO., LTD. |
|
| DD01 | Delivery of document by public notice | ||
| DD01 | Delivery of document by public notice |
Addressee: SINOLASER PROJECTION TECHNOLOGY CO., LTD. Document name: Notification to Pay the Fees |
|
| DD01 | Delivery of document by public notice | ||
| DD01 | Delivery of document by public notice |
Addressee: SINOLASER PROJECTION TECHNOLOGY CO., LTD. Document name: Notification of Termination of Patent Right |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110209 Termination date: 20190528 |