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Color wheel

A color wheel and end cap technology, applied in the field of color wheels, can solve problems such as product quality degradation, color filter translocation, falling off, etc., and achieve the effect of improving quality

Inactive Publication Date: 2009-02-04
HONG FU JIN PRECISION IND (SHENZHEN) CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The heat-resistant temperature of the adhesive used in ordinary color wheels is about 150 degrees to 180 degrees, and the heat emitted by the light source is about 150 degrees to 200 degrees, so the glue is prone to embrittlement at this temperature and causes color Decreased adhesion between filter 12 and motor
At the same time, due to the effect of the centrifugal force when the color wheel rotates, the color filter 12 is prone to translocation or even fall off, resulting in a decline in product quality.

Method used

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Embodiment Construction

[0016] see figure 2 , the first preferred embodiment of the color wheel of the present invention, the color wheel 100 includes a motor 42 , a filter 48 and an end cap 10 . The motor 42 includes a shaft 46 . The filter 48 is sheathed on the shaft 46 of the motor 42 . The end cover 10 is fixed on the end of the motor shaft 46 such that the filter 48 is sandwiched between the motor 42 and the end cover 10 .

[0017] The end cover 10 includes a heat dissipation portion 12 and a connection plate 14 , and the heat dissipation portion 12 is fixed on the connection plate 14 . The heat dissipation portion 12 and the connecting plate 14 are made of thermally conductive materials such as metals and thermally conductive polymer materials. The size and shape of the heat dissipation portion 12 and the connecting plate can be designed according to the color wheel to which the end cover 10 is applied. In this implementation, preferably, the heat dissipation portion 12 and the connection ...

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Abstract

The invention provides a color wheel, which comprises a motor, a filter and an end cover. The motor comprises a rotating shaft; the filter is sleeved on the rotating shaft of the motor and sandwiched between the motor and the end cover; the end cover also comprises a cooling part; and the cooling part comprises a soleplate, a plurality of cooling fins, as well as a connecting device. The cooling fins and the connecting device are respectively arranged at the two opposite sides of the soleplate. The end cover enables the filter to be fixedly arranged on the rotating shaft of the motor through the connecting device. The color wheel has high reliability and heat dissipation efficiency.

Description

technical field [0001] The invention relates to a color wheel, in particular to a color wheel capable of efficiently dissipating heat. Background technique [0002] Projection systems can be divided into liquid crystal projection systems (Liquid Crystal Display, LCD), single crystal silicon liquid crystal projection systems (Liquid Crystal on Silicon, LCOS) and digital light source processing technology projection systems (DigitalLight Processing, DLP) etc., among them, DLP projection system has the advantages of high brightness, accurate color reproduction, short response time, no noise, light weight and short size, and has become one of the mainstream projection systems at present. [0003] In the DLP projection system, digital control is adopted, and the principle of reflection is used to concentrate the light source, focus it through the lens, pass through the color wheel with color filter, and project it to the digital microchip (Digital Micro-mirrorDevice, DMD) Becaus...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B7/00G03B21/14
CPCG02B7/008G02B26/008
Inventor 何侑伦
Owner HONG FU JIN PRECISION IND (SHENZHEN) CO LTD
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