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Color wheel and digital optical processing projector

A technology of color wheel and wheel sheet, which is applied in the field of digital light processing projectors, can solve the problems of color wheel sheet 145 falling off, deterioration of UV curing adhesive 144 bonding quality, etc., and achieve the effect of preventing bonding quality from deteriorating

Inactive Publication Date: 2009-12-16
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

As a result, a small amount of ultraviolet rays can still reach the UV-curable adhesive 144 through multiple refractions in the color wheel 145, deteriorating the bonding quality of the UV-curable adhesive 144, and causing the color wheel 145 to fall off.

Method used

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  • Color wheel and digital optical processing projector
  • Color wheel and digital optical processing projector
  • Color wheel and digital optical processing projector

Examples

Experimental program
Comparison scheme
Effect test

no. 1 approach

[0013] see figure 2 The digital light processing projector 100 according to the first embodiment of the present invention includes a light source 110 and a condenser lens 120 arranged along the light path of the light source 110 , a color wheel 130 , a digital micromirror chip 140 and a projection lens 150 . The color wheel 130 includes a motor 131 , a carrier 132 , curing glue 133 , a color wheel piece 134 and an ultraviolet filter 135 . The motor 131 includes a rotor 136 . The carrier 132 is fixed to the rotor 136 . The color wheel piece 134 is attached to the carrier 132 through the curing glue 133 . The ultraviolet filter 135 is an ultraviolet filter film formed on the surface 137 of the color wheel 134 opposite to the curing glue 133 .

[0014] The light source 110 can be a high-pressure mercury lamp, a metal halide lamp or a xenon lamp for generating white light. This embodiment adopts a high-pressure mercury lamp.

[0015] The condensing lens 120 is used for conde...

no. 2 approach

[0022] see image 3 The difference between the color wheel 230 of the second embodiment of the present invention and the color wheel 130 of the first embodiment is that the color wheel 230 of this embodiment further includes a cover sheet 231 . The cover sheet 231 is fixed on the surface 138 of the color wheel sheet 134 opposite to the ultraviolet filter 135 .

[0023] The cover sheet 231 can block all light from irradiating the cured glue 133 to increase the protection of the cured glue 133 .

no. 3 approach

[0025] see Figure 4 The difference between the color wheel 330 of the third embodiment of the present invention and the color wheel 230 of the second embodiment is that the ultraviolet filter 310 of this embodiment includes a transparent substrate 311 with the same shape as the color wheel sheet 134 and formed on a transparent An ultraviolet filter film 312 on one surface of the substrate 311 . The ultraviolet filter 310 is fixed on the surface 139 of the cover 231 opposite to the color wheel 134 .

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PUM

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Abstract

The invention provides a color wheel comprising a motor, a carrier, a color wheel piece and an ultraviolet optical filter, wherein the motor is provided with a rotor, the carrier is fixed on the rotor, the color wheel piece is connected with the carrier by solidification glue, and the ultraviolet optical filter is positioned on one side of the solidification glue opposite to the motor. The shape of the ultraviolet optical filter is matched with that of the color wheel piece. The ultraviolet optical filter can effectively obstruct ultraviolet light rays from entering the color wheel piece to refract or obstruct ultraviolet light refracting for plural times in the color wheel piece from irradiating on the solidification glue, and can prevent the connected quality of the solidification glue from deteriorating. In addition, the invention also provides a digital optical processing projector provided with the color wheel.

Description

technical field [0001] The invention relates to digital light processing projection technology, in particular to a color wheel and a digital light processing projector using the color wheel. Background technique [0002] see figure 1 The digital light processing projector 10 generally includes a light source 11 and an ultraviolet filter 12 , a condenser lens 13 and a color wheel 14 arranged along the light path of the light source 11 . The color wheel 14 includes a motor 141 , a carrier 143 fixed on the rotating shaft 142 of the motor 141 , a color wheel piece 145 attached to the carrier 143 through an ultraviolet curing glue 144 , and a cover piece 146 fixed on the color wheel piece 145 . [0003] The cover sheet 146 is used to block light, especially stray ultraviolet light from the outside, directly projecting on the ultraviolet curing adhesive 144 . However, in order for the color wheel plate 145 to retain a sufficient filter area, the size of the cover plate 146 is ge...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B7/00G03B21/00
CPCG02B26/008
Inventor 何侑伦詹博文林君鸿简义本
Owner HONG FU JIN PRECISION IND (SHENZHEN) CO LTD
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