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Stereo projection optical system

An optical system and stereoscopic projection technology, applied in the field of projection optical systems, can solve problems such as high cost and weight, difficult optical alignment, and difficult movement

Inactive Publication Date: 2009-03-04
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

While such systems are successfully used to form stereoscopic images, the cost and weight of the system is much higher than that of a single projector
Also, the optical alignment required for the two projectors is relatively difficult and time consuming
also, due to the weight and bulk of the two systems, it is extremely difficult to move such a system between the two locations, and there are potential image alignment issues

Method used

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  • Stereo projection optical system
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Embodiment Construction

[0017] In order to further illustrate the present invention, the following preferred embodiments are given and described in detail in conjunction with the accompanying drawings.

[0018] Please refer to FIG. 1 , which is a schematic structural diagram of a stereoscopic projection optical system 100 according to a first embodiment of the present invention. The stereoscopic projection optical system 100 includes a light source assembly 11, a first polarizing beam splitter 12 arranged in sequence along the direction of the optical path, and first and second reflecting devices 13 respectively arranged on different exiting optical paths of the first polarizing beam splitter 12. , 14, the first and second transmissive spatial light modulators 15 and 16 respectively arranged on the outgoing light paths of the first and second reflecting devices 13 and 14, one of which is arranged on the first and second transmissive A second polarizing beam splitter 17 on the outgoing light path of t...

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Abstract

The invention relates to a stereoscopic projection optical system which sequentially comprises a first polarization beam splitter used for splitting incident light into a first polarized light and a second polarized light, a first penetration spatial light modulator arranged in the emergent direction of the first polarized light, a second penetration spatial light modulator arranged in the emergent direction of the second polarized light and a second polarization beam splitter arranged in the emergent direction of the emergent light of the first and the second penetration spatial light modulators along a light path. The stereoscopic projection optical system inputs light carrying with different information into the first and the second penetration spatial light modulators, the two images which are formed by the first and second penetration spatial light modulators are respectively projected out by the first polarized light and the second polarized light passing through a projection lens, so that the viewer can observe the three-dimensional images by respectively wearing two polaroid sheets with orthogonal polarization directions on the right eye and the left eye.

Description

technical field [0001] The invention relates to a projection optical system, in particular to a stereoscopic projection optical system with a stereoscopic projection display function. Background technique [0002] In recent years, image projectors, especially digital projectors, have become popular as tools for displaying various information to viewers. Typically, these projectors are used to project computer-generated images onto a screen. To the viewer, the image projected by the image projector usually looks like a flat two-dimensional image, which cannot display any image depth information except the image itself. This display can be adapted to display a variety of information. However, in some cases, viewers will desire a projector that can reveal the depth of field or structural features of an image to a greater extent than a 2D display. [0003] One way of enabling an image displayed in two dimensions to give the image depth of field is by displaying the image ster...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B27/26G02B27/22H04N13/00H04N15/00G02B30/25H04N13/363
CPCG02B27/283H04N13/0459G02B27/26H04N13/0434H04N13/0438H04N13/337H04N13/341H04N13/363G02B30/25
Inventor 高嘉宏许建文
Owner HONG FU JIN PRECISION IND (SHENZHEN) CO LTD