A color-segmented three-dimensional projection device based on multi-channel combined filtering

A color segmentation and three-dimensional technology, applied in stereo photography, optics, photography, etc., can solve the problems of large light loss, inconsistent stereo distinction, high requirements for color segmentation balance and accuracy, and avoid ghosting and overlapping The effect of band reduction and accuracy improvement

Inactive Publication Date: 2011-12-14
上海寰博数码科技有限公司
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  • Description
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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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  • A color-segmented three-dimensional projection device based on multi-channel combined filtering
  • A color-segmented three-dimensional projection device based on multi-channel combined filtering
  • A color-segmented three-dimensional projection device based on multi-channel combined filtering

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Embodiment Construction

[0018] The present invention will be further described below in conjunction with accompanying drawing.

[0019] Such as figure 1 , 2 As shown, a color-segmented three-dimensional projection device based on multi-channel combined filtering includes a group of left projector 1 and right projector 2 respectively corresponding to the left eye and right eye, and the left projector 1 and right projection The machine 2 includes a light source 3, a projection lens 4, a prism 9, an R filter channel 5, a G filter channel 6 and a B filter channel 7 arranged side by side, and the R filter channel 5 includes a transmission red light reflection green light and a The first dichroic mirror 50, the first single bandpass filter 51 and the first reflector 52 of blue light, the light source 3, the first dichroic mirror 50, the first single bandpass filter 51 and the first Reflectors 52 are arranged in sequence, and the G filter channel 6 includes a second dichroic mirror 60 and a second single ...

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Abstract

The invention relates to a color-segmented three-dimensional projection device based on multi-channel combined filtering, which includes a set of left projectors and right projectors respectively corresponding to the left eye and right eye, and the left projector and the right projector both include Light source, projection lens, prism, side-by-side R filter channel, G filter channel and B filter channel, the method of separately dividing each channel band of R, G, B to generate R1, G1, B1 and R2, G2 , B2 two groups of complementary bands. The invention greatly reduces the manufacturing difficulty of the optical filter, reduces the cost, increases the brightness of the stereoscopic projection picture, reduces the color deviation of the stereoscopic projection picture, and effectively avoids double images and ghost images in the prior art. Phenomenon.

Description

technical field [0001] The invention relates to a projection device, in particular to a color-segmented three-dimensional projection device based on multi-channel combined 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 brightness loss after th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G03B35/20
Inventor 寇懿王薇刘亮周军明
Owner 上海寰博数码科技有限公司
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