CN201000527Y - Device for enhancing contrast ratio of projector - Google Patents
Device for enhancing contrast ratio of projector Download PDFInfo
- Publication number
- CN201000527Y CN201000527Y CNU2007201154267U CN200720115426U CN201000527Y CN 201000527 Y CN201000527 Y CN 201000527Y CN U2007201154267 U CNU2007201154267 U CN U2007201154267U CN 200720115426 U CN200720115426 U CN 200720115426U CN 201000527 Y CN201000527 Y CN 201000527Y
- Authority
- CN
- China
- Prior art keywords
- projector
- utility
- light source
- model
- contrast
- 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
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Abstract
The utility model provides a device which can improve the projector contrast. The utility model comprises a photosensing component arranged on the casing of the projector, a lighting device arranged in the projector and a light source, and the lighting device is connected with the light source. The utility model can adjust the light source intensity according to the operating environment, and has the advantages that the utility model not only improves the projector contrast, but also saves energy and improves the service life of the high-intensity bulb, thus the utility mode is suitable for all projectors.
Description
(1) technical field
The utility model relates to projector's technical field.
(2) background technology
When projector used in the past, no matter the light luminance power of surrounding environment all was identical a little less than the light intensity that light source of projector sends.Like this, when surrounding environment light was strong, the picture contrast that projector shows out was just poor, just feels during the eye-observation picture that sharpness is not enough, and black and white contrast is clearly demarcated inadequately, influences the result of use of projector.Therefore need a kind ofly can regulate the device of light source of projector power according to environment for use.
(3) summary of the invention
The purpose of this utility model is to provide a kind of device that can improve projector's contrast.
The purpose of this utility model is achieved in that it comprises light sensitive component on the shell that is installed in projector, is installed in apparatus for lighting up and light source in the projector, and apparatus for lighting up connects light sensitive component and light source.
The utility model also has some architectural features like this:
1, described light sensitive component is photoelectric sensor or photoresistance.
The utility model can be regulated the power of light source of projector according to environment for use.It is that a photoelectric sensor or photoresistance are installed on the shell of projector, feeds back on the apparatus for lighting up.When external environment light is strong, sensor reference mark modulator thus, the brightness that improves light source; When external environment light was more weak, this sensor reference mark modulator reduced the brightness of light source, till reaching contrast and being fit to.Advantage of the present utility model is that it has not only improved the contrast of projector, also can save the energy, improves the serviceable life of light source bulb, is applicable to various projectors.
(4) description of drawings
Accompanying drawing is a structural representation of the present utility model.
(5) embodiment
The utility model is described in further detail below in conjunction with accompanying drawing:
In conjunction with the accompanying drawings, the utility model comprises light sensitive component 1 on the shell that is installed in projector, is installed in apparatus for lighting up 2 and light source 3 in the projector, and apparatus for lighting up 2 connects light sensitive component 1 and light sources 3.Wherein, light sensitive component 1 is photoelectric sensor or photoresistance.Simultaneously, apparatus for lighting up 2 adopts general in the market apparatus for lighting up to get final product, as the apparatus for lighting up of U.S. GE company production.
Claims (2)
1, a kind of device that improves projector's contrast is characterized in that it comprises light sensitive component on the shell that is installed in projector, is installed in apparatus for lighting up and light source in the projector, and apparatus for lighting up connects light sensitive component and light source.
2, a kind of device that improves projector's contrast according to claim 1 is characterized in that described light sensitive component is photoelectric sensor or photoresistance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201154267U CN201000527Y (en) | 2007-01-22 | 2007-01-22 | Device for enhancing contrast ratio of projector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201154267U CN201000527Y (en) | 2007-01-22 | 2007-01-22 | Device for enhancing contrast ratio of projector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201000527Y true CN201000527Y (en) | 2008-01-02 |
Family
ID=39014932
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201154267U Expired - Fee Related CN201000527Y (en) | 2007-01-22 | 2007-01-22 | Device for enhancing contrast ratio of projector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201000527Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103176339A (en) * | 2012-08-23 | 2013-06-26 | 深圳市金立通信设备有限公司 | System and method for automatically adjusting projection brightness |
-
2007
- 2007-01-22 CN CNU2007201154267U patent/CN201000527Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103176339A (en) * | 2012-08-23 | 2013-06-26 | 深圳市金立通信设备有限公司 | System and method for automatically adjusting projection brightness |
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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: 20080102 Termination date: 20150122 |
|
| EXPY | Termination of patent right or utility model |