Projecting system and its color temperature regulation method

A technology of projection system and color temperature adjustment, applied in the field of projection system and its color temperature adjustment, can solve the problems of inability to display the user's color temperature, difficult to meet the user's needs, affecting the color balance of the picture, etc.

Inactive Publication Date: 2009-10-28
HONG FU JIN PRECISION IND (SHENZHEN) CO LTD +1
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  • Abstract
  • Description
  • Claims
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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

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  • Projecting system and its color temperature regulation method
  • Projecting system and its color temperature regulation method

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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 respectively arranged on the light path of the light emitted from the light source 10 to form an image, and are projected on the screen through the projection lens 80.

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

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Abstract

A projection system comprises: a light source and an optoelectronic device, the light of the light source forms an image after passing through the optoelectronic device and projects it on a screen. The projection system further includes an adjustment device, the adjustment device includes an adjustment unit and a control unit, and the adjustment unit is electrically connected to the control unit. The control unit is used to analyze the color temperature value of the image projected on the screen, and compare the color temperature value obtained by the analysis with the preset color temperature value in the control unit. When the values ​​are different, the control unit controls the luminous flux of the adjustment unit according to the color temperature value obtained by analysis, so as to adjust the color temperature of the image. The invention also provides a color temperature adjustment method of the projection system. The projection system and the color temperature adjustment method thereof can adjust the color temperature of the light of the image projected on the screen, so that the color temperature value of the image on the screen is the same as the set color temperature value.

Description

Technical field [0001] The invention relates to a projection system and a method for adjusting its color temperature. Background technique [0002] In the projection system, the light source is projected on the screen to display the image through the optical element and photoelectric adjustment device. The color tone of the image display is related to the color temperature, that is, the red (R), green (G), and blue (B) in the display screen The ratio of the three colors is related. 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 his needs. [0003] However, the color temperature adjustment range that has been set is generally different...

Claims

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Application Information

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Patent Type & Authority Patents(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
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