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Colour wheel

A color wheel and filter technology, which is applied in the field of color wheels that can prevent the filter from escaping, can solve the problems of aging adhesive, insufficient bonding force of the filter, thermal deformation of the filter, etc.

Inactive Publication Date: 2006-05-17
DELTA ELECTRONICS INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Excessive heat at this time will cause thermal deformation of the filter and aging of the bonding glue, and then the filter will fall off the color wheel due to insufficient bonding force under long-term operation
[0006] Therefore, under the current trend of high display speed and high color saturation, the known color wheel cannot maintain long-term operation in the projection device, and the projection device with high display speed and high color saturation

Method used

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Examples

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Embodiment Construction

[0030] figure 2 It is an exploded schematic view showing a color wheel 200 according to a preferred embodiment of the present invention. refer to figure 2 , the color wheel 200 of the present invention is used as a color selection structure of a projection device, and the color wheel 200 is composed of a filter 202 and a fixed ring 208 .

[0031] The light filter 202 can filter the light passing through the light filter 202 to make the light have color. The optical filter 202 can be a combination of multiple optical filters, or can be integrally formed, depending on actual requirements. The colors that can be filtered by each filter 202 can be the same or different. Preferably, a filter set is composed of a plurality of filters 202 that can filter different colors. The shape of the filter 202 can be fan-shaped or ring-shaped.

[0032] The fixing ring 208 surrounds the outer periphery of the optical filter 202 to surround the optical filter 202 into a specific shape, such...

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PUM

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Abstract

The present invention relates to a color wheel. It is composed of several filters, at leas a drive device and at least a fixed ring, in which the filters are uniformly placed around the drive device, and the fixed rings are placed around the periphery of the filters so as to make the filters be formed into a specific form.

Description

technical field [0001] The invention relates to a color wheel, in particular to a color wheel capable of preventing a filter from escaping. Background technique [0002] In today's projection devices such as projectors and projection TVs, in order to make the internal projection light have a color, a color wheel is generally added between the projection light source and the display panel of the projection device, so that the light beam from the projection light source is filtered by the color wheel. There is color after light. Since there are multiple filters on the color wheel, and the colors that can be filtered by each filter are not necessarily the same, when the color wheel rotates rapidly, the passing light beams will show different colors, and then appear on the display panel. Pattern with colors. [0003] refer to figure 1 , the existing color wheel 100 is composed of a plurality of fan-shaped filters 102, a combination structure 104 and a motor 106, wherein the f...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G03B21/14G03B21/00
Inventor 游锦祥吴家骐
Owner DELTA ELECTRONICS INC
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