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Color wheel module and projection device possessing same

A projection device and color wheel technology, applied to measuring devices, projection devices, installation, etc., can solve the problems of complex assembly structure of filter unit 110 and motor 120, increase of production cost of color wheel module 100, etc., to reduce production cost and The effect of assembly complexity, simplified structure, and maintenance cost saving

Active Publication Date: 2009-01-07
CORETRONIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the filter unit 110 and the motor 120 need to be provided with positioning holes 114 and 126 respectively, the assembly structure of the filter unit 110 and the motor 120 is relatively complicated, and the production cost of the color wheel module 100 is also increased accordingly.

Method used

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  • Color wheel module and projection device possessing same
  • Color wheel module and projection device possessing same
  • Color wheel module and projection device possessing same

Examples

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Embodiment Construction

[0038] The aforementioned and other technical contents, features and effects of the present invention will be clearly presented in the following detailed description of preferred embodiments with reference to the accompanying drawings. The directional terms mentioned in the following embodiments, such as: up, down, left, right, front or back, etc., are only referring to the directions of the drawings. Accordingly, the directional terms are used to illustrate and not to limit the invention.

[0039] Please refer to figure 2 and image 3 , the projection device 300 of the embodiment of the present invention includes a light source 310 , a display element 320 , a control unit 330 , a projection lens 340 and a color wheel module 200 . Wherein, the light source 310 is adapted to provide an illumination beam 312 , and the color wheel module 200 is disposed on a transmission path of the illumination beam 312 . The display element 320 is disposed on the transmission path of the il...

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PUM

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Abstract

The invention discloses a color wheel module comprising a motor, a color filtering unit and a magnetic sensing member. The motor is provided with a rotation unit with a position index, the color filtering unit is connected to the rotation unit, and the magnetic sensing member is disposed beside the motor and used for sensing the changes of a magnetic field resulted from the rotation of the position index driven by the rotation unit. In addition, the invention also proposes a projection device with the color wheel module.

Description

technical field [0001] The present invention relates to a display device and its internal components, and in particular to a projection device and its color wheel module. Background technique [0002] Please refer to Figure 1A and Figure 1B , an existing color wheel module 100 is used in a projection device (not shown), the color wheel module 100 includes a filter unit 110 and a motor 120, wherein the motor 120 includes a rotating unit 122 and a cover covering the rotating unit 122 A bracket 124 , and the filter unit 110 is fixed on the rotating unit 122 . In addition, the filter unit 110 includes a plurality of filters of different colors, such as a red filter 112r, a green filter 112g, and a blue filter 112b. [0003] The control unit (not shown) of the projection device will drive the motor 120 to drive the filter unit 110 to rotate, and as the filter unit 110 rotates, the light beam passing through the filter unit 110 will be sequentially filtered into red light, gre...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G03B21/14G02B7/00G01R33/07
Inventor 吴上炫陈德堂许年辉
Owner CORETRONIC
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