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Color wheel and projector using same

A projector and color wheel technology, applied in the field of projectors, to avoid carbonization, increase practicability and application surface effects

Inactive Publication Date: 2013-01-16
QISDA OPTRONICS (SUZHOU) CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The body has grooves and penetrations

Method used

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  • Color wheel and projector using same
  • Color wheel and projector using same
  • Color wheel and projector using same

Examples

Experimental program
Comparison scheme
Effect test

no. 1 example

[0028] Please refer to Figure 1A , Figure 1B , Figure 2A and Figure 2B , Figure 1A A diagram showing the configuration of the color wheel according to the first embodiment of the present invention, Figure 1B draw Figure 1A Exploded diagram of the color wheel in , Figure 2A Draw along Figure 1A The cross-sectional view of the color wheel with the section line 2-2' in the light projected on the penetrating part, and Figure 2B shown in Figure 2A Cutaway view of light hitting the grooves after the color wheel in .

[0029] The color wheel 110 includes a main body 111 and a cover body 113 . The main body 111 has a groove 111r, and the groove 111r is used for accommodating the phosphor f1. The cover 113 is disposed on the main body 111 and covers the groove 111r.

[0030] In this embodiment, the groove 111r surrounds at least part of the periphery of the main body 111 . Here, it is illustrated that the groove 111r only surrounds a part of the periphery of the main...

no. 2 example

[0036] Please refer to Figure 3A and Figure 3B , which shows a schematic diagram of the first color light and the second color light generated by the color wheel of the transmissive projector according to the second embodiment of the present invention.

[0037] Figure 3A and Figure 3BThe structure of the color wheel 210 is similar to that of the color wheel 110 of the first embodiment, so the description is not repeated here. Since the color wheel 210 is used in the transmissive projector 200 , the material of the cover 213 of the color wheel 210 is a light-transmitting material, such as glass.

[0038] The transmissive projector 200 includes a color wheel 210 , a motor 220 , a digital micro-mirror device 230 , a lens 240 and a light source 250 . The motor 220 is connected to the color wheel 210 for driving the color wheel 210 to rotate. The light source 250 is used to generate the light L21.

[0039] When the light L21 is projected onto the penetrating portion 211p ...

no. 3 example

[0043] Please refer to Figure 4A and Figure 4B , which shows a schematic diagram of the first color light and the second color light generated by the color wheel of the reflective projector according to the third embodiment of the present invention.

[0044] Figure 4A and Figure 4B The structure of the color wheel 310 is similar to that of the color wheel 110 of the first embodiment, so the description is not repeated here. Since the color wheel 310 is used in the reflective projector 3((, the material of the cover 313 of the color wheel 310 is a light reflective material, such as an aluminum plate or a structure with a mirror surface.

[0045] The reflective projector 300 includes a color wheel 310 , a motor 320 , a digital micromirror device 330 , a lens 340 , a light source 350 and a dichroic mirror 360 . The motor 320 is connected to the color wheel 310 for driving the color wheel 310 to rotate. The light source 350 is used to generate the light L31a, which is gui...

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Abstract

The invention relates to a color wheel and a projector using the same. The color wheel provided by the invention comprises a main body and a cover body, wherein the main body is provided with a groove and a penetrating part; the groove is only wound around the circumference of a part of the main body and used for containing fluorescent powder; the penetrating part corresponds to the circumference of the other part of the main body not wound by the groove and is positioned between the two opposite inner walls of the groove; and the cover body is arranged on the main body and covered on the groove. When light rays are projected to the penetrating part of the main body, the first color light is projected through the penetrating part of the main body, or when the light rays are projected to the fluorescent powder, the light rays excite the fluorescent powder to project the second color light. The color of the second color light is different from the color of the first color light. The color wheel and projector provided by the invention can enhance the quality of pictures.

Description

technical field [0001] The present invention relates to a color wheel and a projector using the same, and more particularly, to a color wheel with grooves and a projector using the color wheel. Background technique [0002] For projectors that use mercury lamps as the light source, the quality of the images produced is reduced due to the poor performance of part of the light spectrum of the mercury lamps. Therefore, some projectors currently use a laser light source as the light source. . After the laser light source generates laser light, the laser light is separated by a color wheel to generate a full-color image through the digital micro-mirror device. [0003] Generally, the color wheel is made of plastic, phosphor and glass. The phosphor powder and the adhesive are mixed with each other to coat and adhere to the glass. However, due to the high energy and power of the laser, when the laser is focused and projected onto the color wheel, the glue material is likely to b...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02B7/00G03B21/14G03B21/00
Inventor 吴中暄
Owner QISDA OPTRONICS (SUZHOU) CO LTD
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