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Three-optical-path polarizing light-splitting stereoscopic video conversion system

A technology of polarization splitting and stereoscopic video, applied in stereoscopic systems, image communications, electrical components, etc., can solve the problems of difficult image alignment and low light efficiency in dual optical path polarization splitting stereoscopic video conversion systems, and achieve easy implementation and improved imaging quality effect

Inactive Publication Date: 2015-09-30
SHENZHEN ESTAR DISPLAYTECH
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Problems solved by technology

[0009] The present invention mainly aims to solve the technical problems of low optical efficiency of the existing single optical path polarization splitting stereoscopic video conversion system and difficult image alignment of the dual optical path polarization splitting stereoscopic video conversion system, and provides a high optical efficiency, easy alignment, and high imaging quality three-dimensional video conversion system. Optical path polarization splitting stereoscopic video conversion system

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Embodiment Construction

[0044] See Figure 4 , Figure 4 It is a structural schematic diagram of the first embodiment of the three-light path polarization splitting stereoscopic video conversion system of the present invention. Such as Figure 4 As shown, the three-light-path polarization-splitting stereoscopic video conversion system 30 of the present embodiment mainly includes a polarization-splitting device 31 ( Figure 4 shown by the dotted line in the middle), two reflection devices 32 and 33 , a half-wave plate 34 , a compensating mirror 35 , three liquid crystal optical rotation devices 36 and a synchronous controller 37 .

[0045] In this embodiment, the polarization beam splitting device 31 includes a first polarization beam splitting layer 311, a second polarization beam splitting layer 312, and two transparent substrates 313 and 314 arranged together by means of machine positioning. The first polarization beam splitting layer 311 is set On the first transparent substrate 313, the second...

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Abstract

The present invention relates to a three-light path polarized light-splitting stereographic video switching system. The system comprises: a polarized light-splitting device comprising a first polarized light-splitting layer and a second polarized light-splitting layer which are crossed, wherein the first polarized light-splitting layer is used for guiding a received natural light video image to a first side path and a main path, and the second polarized light-splitting layer is used for guiding the received natural light video image to a second side path and the main path; two reflection devices; a compensation mirror arranged on the main path; a half wave plate arranged on the main path or the side path; and a synchronization controller and three identical liquid crystal optical rotation devices electrically connected thereto, wherein the synchronization controller is used for synchronously driving the three liquid crystal optical rotation devices according to a left-right eye synchronization signal to change the polarization state of incident linearly polarized light so as to alternately generate left-handed circular polarized light and right-handed circular polarized light. By means of the the above arrangement, the three-light path polarized light-splitting stereographic video switching system of the present invention can obtain a relatively high light effect, images are easily aligned, and the imaging quality is high.

Description

technical field [0001] The invention relates to the technical field of stereoscopic display, in particular to a three-light path polarization splitting stereoscopic video conversion system. Background technique [0002] A three-dimensional movie projection system needs to send two video images with parallax to the left and right eyes of the viewer respectively, and then synthesize them through the human brain to produce a three-dimensional effect. Existing technologies mainly include left and right polarization splitting, left and right shutter switch synchronization, and left and right red and blue splitting. [0003] Among them, the left and right polarization splitting method is the most commonly used stereo conversion method in cinemas. At present, there are mainly single optical path polarization splitting ( figure 1 shown) and two-path polarization splitting ( figure 2 shown). figure 1 It is a structural schematic diagram of a single optical path polarization split...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N13/00H04N13/04H04N13/02G02B30/25
CPCG02B30/25
Inventor 刘美鸿母林吴新民
Owner SHENZHEN ESTAR DISPLAYTECH
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