Projecting system and its color temperature regulation method

A technology for projection system and color temperature adjustment, which is applied in the field of projection system and its color temperature adjustment, and can solve problems such as the inability to display the user's color temperature, the inability of the user to adjust the color temperature, and the impact on the color balance of the screen.

Inactive Publication Date: 2008-12-31
HONG FU JIN PRECISION IND (SHENZHEN) CO LTD +1
View PDF0 Cites 12 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, there is a certain difference between the set color temperature adjustment range and the color temperature required by the user, and the color temperature required by the user cannot be displayed, and the user cannot adjust the color temperature.
When the color temperature adjustment range is quite different from the color temperature required by the user, it will affect the color balance of the screen, making it difficult to meet the user's needs.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Projecting system and its color temperature regulation method
  • Projecting system and its color temperature regulation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0012] The embodiments of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0013] see figure 1 , which is a projection system 100 according to an embodiment of the present invention. It includes a light source 10 , a color separation device, a photoelectric device, a color combination device 28 , an adjustment unit, a control unit, and a projection lens 80 . The color separation device, the adjustment unit and the photoelectric device are arranged correspondingly on the optical path of the light emitted by the light source 10 to form an image, which is projected on the screen through the projection lens 80 .

[0014] The dichroic device includes a first reflector 120 , a first dichroic mirror 122 , a second reflector 124 , a second dichroic mirror 126 , a third reflector 128 and a fourth reflector 129 . The first reflector 120 , the first dichroic mirror 122 , the second reflector 124 , the second dichroic mirro...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention provides a projection system, comprising a light source and a photoelectric device; the light beam of the light source forms an image after passing through the photoelectric device and then is projected on a screen. The projection system also comprises an adjusting device which comprises an adjusting unit and a control unit; the adjusting unit is electrically connected with the control unit. The control unit is used for analysing the colour temperature value of the projection image and compares the analysed colour temperature value with the colour temperature value prearranged in the control unit; when the analysed colour temperature value is different from the prearranged colour temperature value, the control unit controls the luminous flux of the adjusting unit according to the analysed colour temperature value so as to adjust the colour temperature of the image. The invention also provides a colour temperature adjusting method used for the projecting system. The projection system and the colour temperature adjusting method can adjust the colour temperature of the light beam of the projection image and leads the colour temperature value of the image on the screen to be identical to the given colour temperature value.

Description

technical field [0001] The invention relates to a projection system and a color temperature adjustment method thereof. Background technique [0002] In the projection system, the light source is projected on the screen to display the image through the optical element and the photoelectric adjustment device. color ratio. The higher the color temperature, the more blue components, and the lower the color temperature, the more red components. In general, the user sets the required color temperature in the display menu according to the needs of different scene modes. The display menu has determined several color temperature ranges that can be adjusted before leaving the factory, and the user can choose according to the need. [0003] However, there is generally a certain difference between the set color temperature adjustment range and the color temperature required by the user, and the color temperature required by the user cannot be displayed, and the user cannot adjust the ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): G03B21/00G02F1/13H04N9/31
CPCG03B21/16
Inventor 许建文周世杰高嘉宏罗焕亮
Owner HONG FU JIN PRECISION IND (SHENZHEN) CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap