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Projection imaging device, use method of projection imaging device and liquid crystal light valve system

A technology of an imaging device and a liquid crystal light valve, which is applied in the field of projection imaging device and liquid crystal light valve system, can solve the problems of uneven beam edge and scattered light spots, etc., and achieves the effect of wide beam spectrum, adjustable intensity, and avoiding shaping

Pending Publication Date: 2022-01-28
INST OF FLUID PHYSICS CHINA ACAD OF ENG PHYSICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In fact, in the current liquid crystal light valve system, the addressing light used by most optical addressing light valves is laser. Since the beam output by the laser is a single-point Gaussian beam, there are uneven beam edges and scattered spots during the addressing process. And other issues

Method used

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  • Projection imaging device, use method of projection imaging device and liquid crystal light valve system
  • Projection imaging device, use method of projection imaging device and liquid crystal light valve system
  • Projection imaging device, use method of projection imaging device and liquid crystal light valve system

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Experimental program
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Effect test

Embodiment 1

[0043] A projection imaging device 2, including a receiving module, a generating module and a projecting module;

[0044] A receiving module, configured to receive user instruction information;

[0045] The instruction information mentioned in this embodiment includes image instruction information and color ratio instruction information; wherein, the image instruction information is used to generate an image of a specific shape, and the color ratio instruction information is used to fill the generated image with color.

[0046] A generating module, configured to generate a corresponding specific image according to the instruction information; specifically:

[0047] The generating module in this embodiment includes an image generating unit and a specific image generating unit;

[0048] an image generation unit, configured to generate a specified image according to the image instruction information;

[0049] The specific image generation unit is configured to fill the image wi...

Embodiment 2

[0055] This embodiment provides a projection method for the projection imaging device 2 on the basis of Embodiment 1, including the following steps:

[0056] S1: receiving user instruction information;

[0057] The instruction information mentioned in this embodiment includes image instruction information and color ratio instruction information; wherein, the image instruction information is used to generate an image of a specific shape, and the color ratio instruction information is used to fill the generated image with color.

[0058] S2: Generate corresponding specific image information according to the instruction information, specifically, including:

[0059] S21: Generate a corresponding image according to the image instruction information in the instruction information;

[0060] S22: Fill the image with color according to the color proportion instruction information in the instruction information to obtain a specific image.

[0061] S3: Projecting specific image informat...

Embodiment 3

[0064] This embodiment provides a liquid crystal light valve system on the basis of embodiment 1, including a light-addressable liquid crystal light valve 3 and a projection imaging device provided in embodiment 1; the projection imaging device 2 is used to project image information to the light addressable liquid crystal light valve 3 .

[0065] Specifically, the liquid crystal light valve system in this embodiment, such as figure 1 As shown, it includes a main laser generator 1, a projection imaging device 2, an optical addressable liquid crystal light valve 3, a polarizer 4, an imaging system 5, a beam splitter 6, a target surface 7 and a detection system 8; when the main laser is transmitted with graphic information When the light-addressable liquid crystal light valve 3 is reached, under the condition that the light-addressable liquid crystal light valve 3 is not addressed, the polarization direction of the main laser light does not change after passing through the light-...

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Abstract

The invention discloses a projection imaging device, a use method of the projection imaging device and a liquid crystal light valve system. The projection imaging device comprises a receiving module, a generation module and a projection module. The receiving module is used for receiving instruction information of a user; the generation module is used for generating a corresponding specific image according to the instruction information; and the projection module is used for projecting the specific image. The invention aims to provide a projection imaging device, a use method of the projection imaging device and a liquid crystal light valve system. Compared with Gaussian laser, the projection light beam of the projection device has the advantages of uniform light beam, wide light beam spectrum, adjustable intensity of each part and no scattering light spot.

Description

technical field [0001] The invention relates to the technical field of optical addressing liquid crystal light valves, in particular to a projection imaging device, a method for using the projection imaging device, and a liquid crystal light valve system. Background technique [0002] An optically addressable liquid crystal light valve is an optically addressable spatial light modulator made by associating a liquid crystal material with a thin photoconductive plate. The photoconductive thin plate and the glass thin plate form a liquid crystal cell, and ITO electrodes are deposited on the outside of the photoconductive thin plate and the inside of the glass thin plate for voltage application. Liquid crystal material is poured between the photoconductive thin plate and the glass thin plate to form a complete liquid crystal light valve device. [0003] Before the addressing light enters, due to the large dark-state resistance of the photoconductive thin plate, the applied volt...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N9/31
CPCH04N9/3155H04N9/3182H04N9/3185H04N9/3161H04N9/3144
Inventor 陈一波段佳著赵祥杰张大勇骆永全乔冉李大鹏曾建成沈浩李玥颖
Owner INST OF FLUID PHYSICS CHINA ACAD OF ENG PHYSICS
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