CN201562114U - Projector - Google Patents
Projector Download PDFInfo
- Publication number
- CN201562114U CN201562114U CN2009202461454U CN200920246145U CN201562114U CN 201562114 U CN201562114 U CN 201562114U CN 2009202461454 U CN2009202461454 U CN 2009202461454U CN 200920246145 U CN200920246145 U CN 200920246145U CN 201562114 U CN201562114 U CN 201562114U
- Authority
- CN
- China
- Prior art keywords
- light
- shell
- radiating module
- projector
- colour wheel
- 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
Images
Landscapes
- Projection Apparatus (AREA)
Abstract
The embodiment of the utility model discloses a projector, which comprises a light source device, a color wheel and a first shell, wherein the light source device is used for providing light; the color wheel is arranged on the light emitting side of the light source device; and the first shell is used for sealing the color wheel. A first light pass opening for passing light is arranged on the side of the first shell close to the light source device. The first light pass opening is sealed through a transparent substrate. A second light pass opening for light to enter a light guide tube is arranged on the other side of the first shell. The second light pass opening is connected with the inlet of the light guide tube in a sealing way. The light guide tube guides light to pass through a lens to enter a digital micro reflecting mirror element. Image light reflected by the digital micro reflecting mirror element is emitted out through a projection lens. Since the open spaces of the ray machine parts such as the color wheel of the projector are sealed, the utility model has the advantages that dust particles are prevented from polluting an optical path system, the image output quality of the projector is improved and the service life of the projector is prolonged.
Description
Technical field
The utility model relates generally to projection field, is meant a kind of projector that has dustproof design especially.
Background technology
Along with the progress and the development of electronic technology of society, projector has become indispensable utility appliance in people's life, work, the study, as office, classroom, meeting room, home theater etc.Projector is to be used for the image that the picture signal of input is represented is presented at the screen that is throwed enlargedly.
For projector, degradation the question resolves itself into is that the bulb decay causes to industry under the drop shadow effect occurring after the long-term use of projector always, but in addition, dust granules also is very large to the influence of projector, can cause the decline of drop shadow effect, abnormal conditions such as the lost of life, part aging directly or indirectly.To be dust granules damage the optical system and the associated components (comprising colour wheel, ray machine, DMD (Digital Micro mirror Device, digital minitype reflector element)) of projector the direct factor that dust influences drop shadow effect.
The inventor finds in the process that realizes the utility model embodiment, at least there is following shortcoming in the prior art: because the factor that design concept and environment for use etc. can not demodulation, almost blank on to the dustproof design of optical system and associated components on the existing projector, as there being certain open space around the colour wheel, thereby the as easy as rolling off a log pollution that makes colour wheel be subjected to dust granules in the air, when projector environment for use dust bigger, after service time is long, associated components such as colour wheel have a large amount of laying dusts, thereby influence the quality of projector output image.Therefore, the optical system and the associated components that press on the structural design projector carry out dustproof targetedly design, thereby avoid the optical-mechanical system of projector and the influence that associated components is subjected to dust granules.
The utility model content
The utility model embodiment proposes a kind of projector, seal by open space ray machine parts such as colour wheels, thereby can avoid the pollution of dust granules, improve the image output quality of projector, and the term of life that can prolong projector to light path system.
The technical scheme of the utility model embodiment is achieved in that
A kind of projector comprises:
One is used to provide the light supply apparatus of light;
Be arranged at the colour wheel of described light supply apparatus bright dipping side;
One first shell that is used to seal described colour wheel is set, one side of the close described light supply apparatus of described first shell is provided with one and is used for the first logical light mouth that light passes through, the described first logical light mouth is by transparency carrier sealing, the opposite side of described first shell is provided with one and is used for the second logical light mouth that light enters photoconductive tube, the described second logical light mouth is connected with described photoconductive tube inlet seal, enter the digital minitype reflector element after the described photoconductive tube guiding rays pass through lens, reflection is penetrated by a projection lens from the image light of described digital minitype reflector element.
Preferably, also be provided with second shell that is used to seal described photoconductive tube, described digital minitype reflector element and described projection lens light inlet.
Preferably, also be provided with on described first shell and be used for first radiating module that described colour wheel is dispelled the heat.
Preferably, described first radiating module and the one-body molded setting of described first shell.
Preferably, also be provided with a temperature sensor that is used to detect described colour wheel working temperature, described temperature sensor is connected with described first radiating module, and produces the duty that control signal is controlled described first radiating module.
Preferably, also be provided with second radiating module on described second shell.
Preferably, described second radiating module and the one-body molded setting of described second shell.
A kind of projector comprises:
One is used to provide the light supply apparatus of light;
Be arranged at the colour wheel of described light supply apparatus bright dipping side;
The opposite side of described colour wheel is provided with a photoconductive tube that is used for the light by described colour wheel is guided to the digital minitype reflector element, described photoconductive tube inside is provided with lens, and reflection is penetrated by a projection lens from the image light of described digital minitype reflector element;
Also comprise:
One shell that is used to seal described colour wheel, described photoconductive tube, described digital minitype reflector element and described projection lens light inlet is set, one side of the close described light supply apparatus of described shell is provided with one and is used for the Tong Guangkou that light passes through, and described logical light mouth is by transparency carrier sealing.
Preferably, also be provided with radiating module on the described shell.
Preferably, described radiating module and the one-body molded setting of described shell.
Preferably, also be provided with a temperature sensor that is used to detect temperature, described temperature sensor is connected with described radiating module, and produces the duty that control signal is controlled described radiating module.
The described technical scheme of the utility model embodiment seals by the open space with ray machine parts such as colour wheels, thereby can avoid the pollution of dust granules to light path system, improved the image output quality of projector, and the term of life that can prolong projector; Further, dispel the heat, thereby the ray machine parts after the sealing can be operated under the normal temperature, can not influence working environment because each ray machine parts is sealed by radiating module is set.
Description of drawings
In order to be illustrated more clearly in the technical scheme among the utility model embodiment, the accompanying drawing of required use is done to introduce simply in will describing embodiment below, apparently, accompanying drawing in describing below only is embodiment more of the present utility model, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the structural representation of a kind of projector first embodiment of the utility model;
Fig. 2 is another structural representation of a kind of projector first embodiment of the utility model;
Fig. 3 is the structural representation (band light supply apparatus) of a kind of projector first embodiment of the utility model;
Fig. 4 is the structural representation sectional view of a kind of projector first embodiment of the utility model;
Fig. 5 is the structural representation sectional view of a kind of projector second embodiment of the utility model;
Fig. 6 is a light synoptic diagram in the utility model projector.
Embodiment
Below in conjunction with the accompanying drawing among the utility model embodiment, the technical scheme among the utility model embodiment is clearly and completely described, obviously, described embodiment only is the utility model part embodiment, rather than whole embodiment.Based on the embodiment in the utility model, those of ordinary skills are not making the every other embodiment that is obtained under the creative work prerequisite, all belong to the scope of the utility model protection.
With reference to Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 6, show the structural representation of a kind of projector first embodiment of the utility model.Described projector comprises: one is used to provide the light supply apparatus 30 of light, is arranged at the colour wheel 40 of described light supply apparatus 30 bright dipping sides.
One first shell 10 that is used to seal described colour wheel 40 is set, one side of described first shell, 10 close described light supply apparatuses 30 is provided with one and is used for the first logical light mouth 12 that light passes through, the described first logical light mouth 12 is by a transparency carrier 14 sealings, the opposite side of described first shell 10 is provided with one and is used for the second logical light mouth 26 that light enters photoconductive tube 18, the described second logical light mouth 26 is connected with described photoconductive tube 18 inlet seals, the described photoconductive tube 18 guiding rays pass through lens digital minitype reflector element 90 that enters after 80s, reflection is penetrated by a projection lens 24 from the image light of described digital minitype reflector element 90.
Described light supply apparatus 30 can adopt ultra high pressure mercury bulb or metal halide lamp or neon lamp, certainly, also can adopt the light source of other type.Described light supply apparatus 30 can produce a large amount of heats in work, temperature can reach thousands of degree, and therefore described light supply apparatus 30 all is provided with heat abstractor such as fan.
Described colour wheel 40 is arranged at the side that described light supply apparatus 30 emits beam, colour wheel 40 (COLORWHEEL) is the combination by red, green, blue, color separation filter such as white, the white light that described light supply apparatus 30 produces can be carried out color separation, and make its rotation by high-speed motor, order is told different monochromatic light on the light path of appointment then, and is synthetic and project full-color image via described digital minitype reflector element 90 at last.
In the prior art, described colour wheel 40 is to be exposed to airbornely, is subjected to the pollution of dust granules easily.In the utility model, the described colour wheel 40 of described first shell, 10 sealings is set, thereby make extraneous dust be not easy to pollute described colour wheel 40, for the light that makes described light supply apparatus 30 can pass through described first shell 10, one side of described first shell, 10 close described light supply apparatuses 30 is provided with one and is used for the first logical light mouth 12 that light passes through, in order to make 10 sealings of described first shell, the described first logical light mouth 12 is by a transparency carrier 14 sealings, thereby make light pass described first shell 10 and enter colour wheel 40, can guarantee the sealing of described first shell 10 again by described transparency carrier 14.Described transparency carrier 14 can adopt plastic material or glass material, preferably resistant to elevated temperatures plastic material or glass material.
On described first shell 10, be provided with one second logical light mouth 26 with the described first logical light mouth 12 corresponding opposite sides, so that the light after described colour wheel 40 color separations can enter light pipe, the described second logical light mouth 26 is connected with described photoconductive tube 18 inlet seals, thereby dustproof dust granules enters light path system.Described photoconductive tube 18 guiding rays pass through lens digital minitype reflector element 90 (the DigitalMicromirror Device that enters after 80s, DMD), reflection is penetrated by a projection lens 24 from the image light of described digital minitype reflector element 90, thereby can see projected image on screen.
The utility model embodiment also is provided with second shell 20 that is used to seal described photoconductive tube 18, described digital minitype reflector element 90 and described projection lens 24 light inlets, thereby the whole optical path system is all sealed, prevent the pollution of dust granules each ray machine parts.Need to prove, described second shell 20 can not be self-existent parts, and the enclosure space that formation closely is set by ray machine parts such as described photoconductive tube 18, lens 80, digital minitype reflector element 90, projection lens 24 also can be second shell 20 described in the utility model.
In another embodiment of the present utility model, also be provided with on described first shell 10 and be used for first radiating module 16 that described colour wheel 40 is dispelled the heat.Because the utility model with described colour wheel 40 sealings, is worked under normal temperature in order to guarantee described colour wheel 40, therefore need dispel the heat to described colour wheel 40.
Described first radiating module 16 can be independent of described first shell 10 and be provided with, as as described in install radiator fan or heat radiator additional on first shell 10, described first radiating module 16 also can with the 10 one-body molded settings of described first shell, a kind of preferred implementation is that heat sink material is arranged to described first shell 10, be that described first shell 10 itself is exactly a radiating module, need saying of explanation, each embodiment of the utility model does not limit the quantity of described first radiating module 16 and described second radiating module 22, can be one, also can be two or more.
Further, also be provided with a temperature sensor that is used to detect described colour wheel 40 working temperatures, described temperature sensor is connected with described first radiating module 16, and produces the duty that control signal is controlled described first radiating module 16.
Described temperature sensor just produces control signal according to the temperature that detects, thereby to control described first radiating module 16 be work or do not work.As when detecting temperature less than a certain basal temperature, described temperature sensor produces a control signal of closing, controlling described radiating module closes, when the detecting temperature is equal to or higher than a certain basal temperature, described temperature sensor produces a control signal of opening, control described radiating module unlatching, thereby can determine the duty of described radiating module, with energy savings according to the working temperature of colour wheel 40.Described basal temperature can be set according to actual conditions (as the material of colour wheel 40, situations such as external temperature).
Further, also be provided with second radiating module 22 on described second shell 20.Described second radiating module 22 can be independent of described second shell 20 and be provided with, as as described in install radiator fan or heat radiator additional on second shell 20, described second radiating module 22 also can with the 20 one-body molded settings of described second shell, a kind of preferred implementation is that heat sink material is arranged to described second shell 20, and promptly described second shell 20 itself is exactly a radiating module.
Need to prove, each embodiment described in the utility model just describes in detail and relates to improved optical-mechanical system in the projector, it will be appreciated by those skilled in the art that, described projector also comprises known building blocks such as mainboard, outer cover certainly except comprising parts such as colour wheel 40, photoconductive tube 18, digital minitype reflector element 90, projection lens 24.
The described technical scheme of the utility model embodiment seals by the open space with colour wheel 40 parts such as ray machine such as grade, thereby can avoid the pollution of dust granules to light path system, improved the image output quality of projector, and the term of life that can prolong projector; Therefore further, dispel the heat by radiating module is set, thereby the ray machine parts after the sealing can be operated under the normal temperature, each ray machine parts is sealed and influence working environment.
With reference to Fig. 5, show the structural representation of a kind of projector second embodiment of the utility model.Described projector comprises: one is used to provide the light supply apparatus 30 of light; Be arranged at the colour wheel 40 of described light supply apparatus 30 bright dipping sides; The opposite side of described colour wheel 40 is provided with a photoconductive tube 18 that is used for the light by described colour wheel 40 is guided to digital minitype reflector element 90, described photoconductive tube 18 inside are provided with lens 80, and reflection is penetrated by a projection lens 24 from the image light of described digital minitype reflector element 90.
Also comprise:
One shell 50 that is used to seal described colour wheel 40, described photoconductive tube 18, described digital minitype reflector element 90 and described projection lens 24 light inlets is set, one side of described shell 50 close described light supply apparatuses 30 is provided with one and is used for the logical light mouth 70 that light passes through, and described logical light mouth 70 is by a transparency carrier 14 sealings.
The difference of the present embodiment and first embodiment is first shell 10 among first embodiment and the 20 one-body molded settings of second shell.Thereby the whole ray machine light path system except that light supply apparatus 30 is in the shell of sealing.
Further, also be provided with radiating module 60 on the described shell.
Described radiating module 60 can be independent of described shell 50 and be provided with, as as described in install radiator fan or heat radiator additional on the shell 50, described radiating module 60 also can with described shell 50 one-body molded settings, a kind of preferred implementation is that heat sink material is arranged to described shell 50, be that described shell 50 itself is exactly a radiating module 60, what need explanation says that each embodiment of the utility model does not limit the quantity of described radiating module 50, can be one, also can be two or more.
Further, also be provided with a temperature sensor that is used to detect temperature (figure does not show), described temperature sensor is connected with described radiating module 60, and the generation control signal is controlled the duty of described radiating module 60.
Described temperature sensor is used to detect the working temperature of each ingredient (as parts such as colour wheel 40, digital minitype reflector elements 90), and producing control signal according to working temperature, to control described radiating module 60 be to open or closed condition.
The described technical scheme of the utility model embodiment seals by the open space with colour wheel 40 parts such as ray machine such as grade, thereby can avoid the pollution of dust granules to light path system, improved the image output quality of projector, and the term of life that can prolong projector; Therefore further, dispel the heat by radiating module is set, thereby the ray machine parts after the sealing can be operated under the normal temperature, each ray machine parts is sealed and influence working environment.
The above only is preferred embodiment of the present utility model; not in order to restriction the utility model; all within spirit of the present utility model and principle, any modification of being done, be equal to replacement, improvement etc., all should be included within the protection domain of the present utility model.
Claims (11)
1. a projector is characterized in that, comprising:
One is used to provide the light supply apparatus of light;
Be arranged at the colour wheel of described light supply apparatus bright dipping side;
One first shell that is used to seal described colour wheel is set, one side of the close described light supply apparatus of described first shell is provided with one and is used for the first logical light mouth that light passes through, the described first logical light mouth is by transparency carrier sealing, the opposite side of described first shell is provided with one and is used for the second logical light mouth that light enters photoconductive tube, the described second logical light mouth is connected with described photoconductive tube inlet seal, enter the digital minitype reflector element after the described photoconductive tube guiding rays pass through lens, reflection is penetrated by a projection lens from the image light of described digital minitype reflector element.
2. projector according to claim 1 is characterized in that, also is provided with second shell that is used to seal described photoconductive tube, described digital minitype reflector element and described projection lens light inlet.
3. projector according to claim 2 is characterized in that, also is provided with on described first shell to be used for first radiating module that described colour wheel is dispelled the heat.
4. projector according to claim 3 is characterized in that, described first radiating module and the one-body molded setting of described first shell.
5. projector according to claim 4, it is characterized in that, also be provided with a temperature sensor that is used to detect described colour wheel working temperature, described temperature sensor is connected with described first radiating module, and produces the duty that control signal is controlled described first radiating module.
6. projector according to claim 5 is characterized in that, also is provided with second radiating module on described second shell.
7. projector according to claim 6 is characterized in that, described second radiating module and the one-body molded setting of described second shell.
8. a projector is characterized in that, comprising:
One is used to provide the light supply apparatus of light;
Be arranged at the colour wheel of described light supply apparatus bright dipping side;
The opposite side of described colour wheel is provided with a photoconductive tube that is used for the light by described colour wheel is guided to the digital minitype reflector element, described photoconductive tube inside is provided with lens, and reflection is penetrated by a projection lens from the image light of described digital minitype reflector element;
Also comprise:
One shell that is used to seal described colour wheel, described photoconductive tube, described digital minitype reflector element and described projection lens light inlet is set, one side of the close described light supply apparatus of described shell is provided with one and is used for the Tong Guangkou that light passes through, and described logical light mouth is by transparency carrier sealing.
9. projector according to claim 8 is characterized in that, also is provided with radiating module on the described shell.
10. projector according to claim 9 is characterized in that, described radiating module and the one-body molded setting of described shell.
11. projector according to claim 10 is characterized in that, also is provided with a temperature sensor that is used to detect temperature, described temperature sensor is connected with described radiating module, and produces the duty that control signal is controlled described radiating module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202461454U CN201562114U (en) | 2009-10-09 | 2009-10-09 | Projector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202461454U CN201562114U (en) | 2009-10-09 | 2009-10-09 | Projector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201562114U true CN201562114U (en) | 2010-08-25 |
Family
ID=42627262
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202461454U Expired - Fee Related CN201562114U (en) | 2009-10-09 | 2009-10-09 | Projector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201562114U (en) |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102478750A (en) * | 2010-11-19 | 2012-05-30 | 中强光电股份有限公司 | Color wheel module and projector with same |
| CN104504945A (en) * | 2015-01-12 | 2015-04-08 | 鲁杨 | Physics teaching projector |
| CN104516178A (en) * | 2013-09-29 | 2015-04-15 | 中强光电股份有限公司 | Optical machine module |
| WO2015161789A1 (en) * | 2014-04-22 | 2015-10-29 | 深圳市绎立锐光科技开发有限公司 | Dust prevention and heat dissipation module and light source system of colour wheel |
| CN105182666A (en) * | 2015-08-07 | 2015-12-23 | 苏州佳世达光电有限公司 | Projection device |
| CN105425519A (en) * | 2015-12-31 | 2016-03-23 | 广州市晶华精密光学股份有限公司 | Heat radiation cover for color wheel and light focusing chamber of projector |
| CN105467731A (en) * | 2015-12-16 | 2016-04-06 | 深圳市帅映科技有限公司 | Heat management system of laser projector |
| CN105487328A (en) * | 2015-12-31 | 2016-04-13 | 广州市晶华精密光学股份有限公司 | Dustproof cover for color wheel and light-gathering cavity of projector |
| CN105487327A (en) * | 2015-12-31 | 2016-04-13 | 广州市晶华精密光学股份有限公司 | Dustproof cooling cover for color wheel and light-gathering cavity of projector |
| CN105607394A (en) * | 2016-02-26 | 2016-05-25 | 苏州佳世达光电有限公司 | Optical machine module and projection apparatus |
| CN106483745A (en) * | 2015-08-27 | 2017-03-08 | 鸿富锦精密工业（深圳）有限公司 | Closed projection light machine |
| CN106791751A (en) * | 2017-02-17 | 2017-05-31 | 海信集团有限公司 | Projection arrangement |
| WO2018028262A1 (en) * | 2016-08-10 | 2018-02-15 | 深圳市绎立锐光科技开发有限公司 | Colour wheel module, light source module and projection system |
| CN110119012A (en) * | 2018-02-05 | 2019-08-13 | 深圳光峰科技股份有限公司 | Solar heat protection projection arrangement out of focus |
-
2009
- 2009-10-09 CN CN2009202461454U patent/CN201562114U/en not_active Expired - Fee Related
Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102478750A (en) * | 2010-11-19 | 2012-05-30 | 中强光电股份有限公司 | Color wheel module and projector with same |
| CN104516178B (en) * | 2013-09-29 | 2016-08-10 | 中强光电股份有限公司 | Bare engine module |
| CN104516178A (en) * | 2013-09-29 | 2015-04-15 | 中强光电股份有限公司 | Optical machine module |
| WO2015161789A1 (en) * | 2014-04-22 | 2015-10-29 | 深圳市绎立锐光科技开发有限公司 | Dust prevention and heat dissipation module and light source system of colour wheel |
| US10274184B2 (en) | 2014-04-22 | 2019-04-30 | Appotronics Corporation Limited | Dust prevention and heat dissipation module and light source system of colour wheel |
| CN104504945A (en) * | 2015-01-12 | 2015-04-08 | 鲁杨 | Physics teaching projector |
| CN105182666A (en) * | 2015-08-07 | 2015-12-23 | 苏州佳世达光电有限公司 | Projection device |
| CN106483745A (en) * | 2015-08-27 | 2017-03-08 | 鸿富锦精密工业（深圳）有限公司 | Closed projection light machine |
| CN105467731A (en) * | 2015-12-16 | 2016-04-06 | 深圳市帅映科技有限公司 | Heat management system of laser projector |
| CN105487327A (en) * | 2015-12-31 | 2016-04-13 | 广州市晶华精密光学股份有限公司 | Dustproof cooling cover for color wheel and light-gathering cavity of projector |
| CN105487328A (en) * | 2015-12-31 | 2016-04-13 | 广州市晶华精密光学股份有限公司 | Dustproof cover for color wheel and light-gathering cavity of projector |
| CN105425519A (en) * | 2015-12-31 | 2016-03-23 | 广州市晶华精密光学股份有限公司 | Heat radiation cover for color wheel and light focusing chamber of projector |
| CN105607394A (en) * | 2016-02-26 | 2016-05-25 | 苏州佳世达光电有限公司 | Optical machine module and projection apparatus |
| CN105607394B (en) * | 2016-02-26 | 2018-06-26 | 苏州佳世达光电有限公司 | A kind of ray machine module and projection arrangement |
| WO2018028262A1 (en) * | 2016-08-10 | 2018-02-15 | 深圳市绎立锐光科技开发有限公司 | Colour wheel module, light source module and projection system |
| CN106791751A (en) * | 2017-02-17 | 2017-05-31 | 海信集团有限公司 | Projection arrangement |
| CN110119012A (en) * | 2018-02-05 | 2019-08-13 | 深圳光峰科技股份有限公司 | Solar heat protection projection arrangement out of focus |
| CN110119012B (en) * | 2018-02-05 | 2021-12-07 | 深圳光峰科技股份有限公司 | Heat-proof defocusing projection device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201562114U (en) | Projector | |
| US20150029467A1 (en) | Light source unit and projector | |
| CN107490928B (en) | Fluorescent light emitting device, light source device, and image projection device | |
| EP1453324A3 (en) | Projection-type display optical system | |
| CN106021050A (en) | Boot operation method of laser projection device | |
| CN101788746A (en) | Projector apparatus | |
| US20150029470A1 (en) | Image projection apparatus and method for controlling image projection apparatus | |
| CN209657071U (en) | A kind of sealed heat-dissipating mechanical-optical setup | |
| WO2017219747A1 (en) | Projection system and image modulation method | |
| CN208110243U (en) | DLP optical projection apparatus | |
| CN102768434A (en) | Liquid crystal display device | |
| CN207164452U (en) | A kind of DLP large screen projection equipment based on LED light source | |
| CN109031864A (en) | Projector and its ray machine | |
| CN105527786B (en) | Cooling system and projection arrangement | |
| CN204188939U (en) | Based on the projector equipment improving energy utilization rate | |
| CN101008775A (en) | Dustproof single-lens projector | |
| CN202309941U (en) | Modularized big-size rear projection splicing display system | |
| CN108980709B (en) | Low-position lighting lamp | |
| CN102955240A (en) | Light source device of projector | |
| CN203688954U (en) | Zooming mechanism for security and protection illumination | |
| CN207935774U (en) | A kind of LED lamp easy to disassemble | |
| CN101661211B (en) | Projector | |
| CN204633948U (en) | Panel computer camera color detection equipment | |
| CN101008776A (en) | Dustproof tri-lens projector | |
| CN101441395A (en) | Mechanism for cooling projector bulb |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100825 Termination date: 20171009 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |