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Color wheel device, and light source device as well as projection system thereof

A color wheel and light source technology, applied in the field of projection systems and color wheel devices, can solve the problems of color wheel failure, temperature rise, product quality decline, etc., to achieve convenient design, increase air convection coefficient, and improve heat exchange capacity Effect

Active Publication Date: 2015-05-27
APPOTRONICS CORP LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Under the irradiation of the laser, the color wheel will absorb a relatively high heat and make its temperature rise rapidly. High temperature may cause the color wheel to malfunction, resulting in a decline in product quality

Method used

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  • Color wheel device, and light source device as well as projection system thereof
  • Color wheel device, and light source device as well as projection system thereof
  • Color wheel device, and light source device as well as projection system thereof

Examples

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Embodiment Construction

[0025] The present invention will be further described below in conjunction with accompanying drawing.

[0026] figure 1 A first embodiment of a color wheel arrangement 10 according to the invention is shown schematically. like figure 1 As shown, the color wheel device 10 includes a housing 11, an airflow channel is formed in the housing 11, a color wheel assembly disposed in the airflow channel and an airflow driving assembly for cooling the color wheel assembly. Same as the prior art, the color wheel assembly includes a motor 13 and a color wheel 14 fixedly connected to the motor 13. The color wheel 14 is provided with phosphors to convert the excitation light irradiated on it into other wavelengths of the subject. The laser shoots out. The rotation of the motor 13 can drive the color wheel 14 to rotate around its central axis. The color wheel device 10 also includes other auxiliary components well known to those skilled in the art, and for the sake of simplicity, detail...

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PUM

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Abstract

The invention relates to a color wheel device, and a light source device as well as a projection system thereof. The color wheel device comprises a housing, a color wheel assembly and an airflow driving assembly, wherein an airflow channel is formed in the interior of the housing; the color wheel assembly is arranged in the airflow channel and at least comprises a color wheel disc with a wavelength conversion function; the airflow driving assembly is arranged in the airflow channel; the generated airflow flows from the airflow driving assembly to the surface of the color wheel disc in the direction parallel to the surface of the color wheel disc. According to the color wheel device and the light source device as well as the projection system thereof, the air flowability of the surface of the color wheel disc can be improved, thereby quickly reducing the temperature of the color wheel disc.

Description

technical field [0001] The invention relates to an optical projection device, in particular to a color wheel device. The invention also relates to a light source device using such a color wheel arrangement, and a projection system using such an optical device. Background technique [0002] Projection systems can be divided into liquid crystal projection equipment (ie, LCD), monocrystalline silicon liquid crystal projection equipment (ie, LCOS) and digital light processing technology projection equipment (ie, DLP) according to their principles. Among them, DLP projection equipment has the advantages of high brightness, accurate color reproduction, short response time, no noise and thinness, etc., and has become one of the mainstream projection systems at present. [0003] In DLP projection equipment, digital control is adopted, and the principle of reflection is used to concentrate the light source, focus it through a lens, and then pass through a color wheel with a color fi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N9/31
CPCH04N9/3144H04N9/315H04N9/3161
Inventor 郭健叶红
Owner APPOTRONICS CORP LTD
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