Color segmentation three-dimensional projection device based on band-pass color wheel light-filtering

A technology of three-dimensional stereoscopic and projection devices, which is applied in stereophotography, projection devices, optics, etc., can solve the problems of large light loss, inconsistency of stereoscopic discrimination, high requirements for color segmentation balance and accuracy, and achieve accuracy improvement, Effect of avoiding ghosting, overlapping band reduction

Inactive Publication Date: 2011-03-30
上海华博数码科技有限公司
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  • Abstract
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AI Technical Summary

Problems solved by technology

However, the current spectral separation technology has a large light loss, and has high requirements for the balance and accuracy of color segmentation, otherwise it will cause inconsistent stereo distinction
On the other hand, the production cost of multi-bandpass filters with good optical performance is also high

Method used

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  • Color segmentation three-dimensional projection device based on band-pass color wheel light-filtering
  • Color segmentation three-dimensional projection device based on band-pass color wheel light-filtering
  • Color segmentation three-dimensional projection device based on band-pass color wheel light-filtering

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Embodiment Construction

[0020] The present invention will be further described below in conjunction with the accompanying drawings.

[0021] like figure 1 , 2 As shown, a color-segmented three-dimensional projection device based on band-pass color wheel filtering includes a left projector 1 and a right projector 2 corresponding to the left eye and the right eye respectively, and the left projector 1 and the right projector 2 each includes a light source 3, a band-pass color wheel 4 capable of performing RGB three-channel filtering, a digital micromirror device DMD5, and a projection lens 6, and the light source 3, the band-pass color wheel 4, and the digital micromirror device DMD5 are arranged in sequence, The projection lens 6 is located on the reflection path of the digital micromirror device DMD5.

[0022] The bandpass color wheel 4 includes a color wheel body that can rotate around the center, and an R color bandpass filter 40, a G color bandpass filter 41 and a B color bandpass filter are inl...

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Abstract

The invention relates to a color segmentation three-dimensional projection device based on band-pass color wheel light-filtering, comprising a left projector and a right projector respectively corresponding to a left eye and a right eye. Both of the left projector and the right projector comprise light sources, band-pass color wheels which can carry out RGB (Red, Green, Blue) three-channel light-filtering, digital micromirror devices DMD and projection lenses. The light sources, the band-pass color wheels and the digital micromirror devices DMD are sequentially arranged, and the projection lenses are positioned on a reflection path of the digital micromirror devices DMD. Compared with the prior art, the invention has the advantages of low cost and good projection effect and is simple to manufacture.

Description

technical field [0001] The invention relates to a three-dimensional projection device, in particular to a color-segmented three-dimensional projection device based on band-pass color wheel filtering. Background technique [0002] At present, the mainstream stereoscopic projection technology put into commercial operation can be divided into three categories: active stereoscopic display system, passive polarization stereoscopic display system and spectral separation stereoscopic display system. [0003] Active stereo uses a projector with a refresh rate of about 120Hz to alternately output left and right eye images, and cooperates with LCD stereoscopic glasses that can be switched left and right alternately to realize the separation of left and right eye images, and the stereo effect is very good. However, the cost of the active stereoscopic glasses is high, and the frequent switching and flickering of the stereoscopic glasses will bring discomfort to the eyes, and the brightn...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G03B35/20G03B21/20
Inventor 王薇寇懿邓文周军明李刚洪一农刘亮
Owner 上海华博数码科技有限公司
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