CN201004150Y - Optical source compensation device for LCD projector - Google Patents
Optical source compensation device for LCD projector Download PDFInfo
- Publication number
- CN201004150Y CN201004150Y CNU2007201154252U CN200720115425U CN201004150Y CN 201004150 Y CN201004150 Y CN 201004150Y CN U2007201154252 U CNU2007201154252 U CN U2007201154252U CN 200720115425 U CN200720115425 U CN 200720115425U CN 201004150 Y CN201004150 Y CN 201004150Y
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- CN
- China
- Prior art keywords
- light source
- liquid crystal
- crystal projector
- compensating element
- color
- 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 liquid crystal projector light source compensating device, comprising light source compensating element which are arranged near a light source light condenser. The light source compensating elements are divided into groups which are parallelly connected; the elements in the same group are serially connected; the groups are connected with the power supply after parallel connection. The utility model adds an LED lamp with a certain color near the front and the back of the light source light condenser in the light path of the liquid crystal projector to compensate a certain color lack in the original light source so as to reach the high fidelity effect of the menu color. Experiments prove that adding a red lamp is able to greatly improve the fuzzy extent of the scenery color so as to reach the aim of light source compensation.
Description
(1) technical field
The utility model relates to the liquid crystal projector technical field.
(2) background technology
The colour picture that present liquid crystal projector is shown out, color reducibility is relatively poor.Mainly be because the light that sends of light source, its curve of spectrum undulatory property is very big, can not satisfy the requirement of high-fidelity reductibility fully, so lack certain color on the picture, makes scenery cross-color on the picture, and human eye is watched very uncomfortable.
(3) summary of the invention
The purpose of this utility model is to provide a kind of liquid crystal projector light source compensation system.
The purpose of this utility model is achieved in that it comprises the light source compensating element, that is arranged on the light source condenser side, and the grouping of light source compensating element, is connected in parallel, and connects between each element in same group, connects power supply after the parallel connection between each group.
The utility model also has some technical characterictics like this:
1, described light source compensating element, is the LED lamp;
2, described LED lamp is a red LED lamp;
3, described light source compensating element, is arranged on the front of light source condenser;
4, described light source compensating element, is arranged on the back of light source condenser.
The utility model is in the light path of liquid crystal projector, and the LED lamp in front or rear certain color of adding of light source condenser so just can compensate certain color that lacks in the primary source, thereby reach the effect of picture color high-fidelity.And, generally add the degree that red colored lamp can be improved the scenery cross-color on the picture greatly, thereby reach the purpose of light source compensation through experimental verification.
(4) description of drawings
Fig. 1 is the structural representation of embodiment 1;
Fig. 2 is the structural representation of embodiment 2;
Fig. 3 is the connection diagram of light source compensating element.
(5) embodiment
The utility model is described in further detail below in conjunction with the drawings and specific embodiments:
Embodiment 1:
In conjunction with Fig. 1, present embodiment comprises the light source compensating element, that is arranged on light source condenser 3 back, and the grouping of light source compensating element, is connected in parallel, and connects between each element in same group, and back in parallel connects power supply between each group.Described light source compensating element, is a red LED lamp 4.In liquid crystal projector, lamp 2 is arranged between catoptron 1 and the spotlight 3, and spotlight 3 rear sides are provided with Fresnel Lenses 6, liquid crystal board 6 and projection objective 7, rear side at light source condenser 3 adds red LED lamp 4, so just can compensate the color that lacks in the primary source, thereby reach the effect of picture color high-fidelity, strengthen the reductibility of color.
In conjunction with Fig. 3, tetrad among the red LED lamp L1-L12 in the present embodiment is divided into three groups and is connected in parallel, and back in parallel connects the 12V power supply between each group.
Embodiment 2:
In conjunction with Fig. 2, the structure of liquid crystal projector is with embodiment 1 in the present embodiment, the light source compensating element, is a red LED lamp 4, difference is that the light source compensating element, is arranged on the front of light source condenser 3, the grouping of light source compensating element, is connected in parallel, connect between each element in same group, back in parallel connects power supply between each group.Circuit connection structure is with embodiment 1.
Claims (5)
1, a kind of liquid crystal projector light source compensation system is characterized in that it comprises the light source compensating element, that is arranged on the light source condenser side, and the grouping of light source compensating element, is connected in parallel, and connects between each element in same group, connects power supply after the parallel connection between each group.
2, liquid crystal projector light source compensation system according to claim 1 is characterized in that described light source compensating element, is the LED lamp.
3, liquid crystal projector light source compensation system according to claim 2 is characterized in that described LED lamp is a red LED lamp.
4, liquid crystal projector light source compensation system according to claim 3 is characterized in that described light source compensating element, is arranged on the front of light source condenser.
5, liquid crystal projector light source compensation system according to claim 3 is characterized in that described light source compensating element, is arranged on the back of light source condenser.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201154252U CN201004150Y (en) | 2007-01-22 | 2007-01-22 | Optical source compensation device for LCD projector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201154252U CN201004150Y (en) | 2007-01-22 | 2007-01-22 | Optical source compensation device for LCD projector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201004150Y true CN201004150Y (en) | 2008-01-09 |
Family
ID=39039692
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201154252U Expired - Fee Related CN201004150Y (en) | 2007-01-22 | 2007-01-22 | Optical source compensation device for LCD projector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201004150Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102778808A (en) * | 2012-08-16 | 2012-11-14 | 哈尔滨固泰电子有限责任公司 | LED (Light Emitting Diode) high-definition digital projection machine and projection method |
| CN103019011A (en) * | 2012-12-03 | 2013-04-03 | 哈尔滨飞羽科技有限公司 | Simulation validation method of projection system effect |
| CN104317145A (en) * | 2014-11-03 | 2015-01-28 | 苏州精创光学仪器有限公司 | Novel optical projection device |
-
2007
- 2007-01-22 CN CNU2007201154252U patent/CN201004150Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102778808A (en) * | 2012-08-16 | 2012-11-14 | 哈尔滨固泰电子有限责任公司 | LED (Light Emitting Diode) high-definition digital projection machine and projection method |
| CN103019011A (en) * | 2012-12-03 | 2013-04-03 | 哈尔滨飞羽科技有限公司 | Simulation validation method of projection system effect |
| CN104317145A (en) * | 2014-11-03 | 2015-01-28 | 苏州精创光学仪器有限公司 | Novel optical projection device |
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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: 20080109 Termination date: 20150122 |
|
| EXPY | Termination of patent right or utility model |