Shear transformation polymer network infrared liquid crystal light valve and manufacturing method thereof

Abstract

The invention discloses a sheared polymer network infrared liquid crystal light valve and a production method thereof; a germanium substrate, a light guide layer, a sheared polymer network liquid crystal layer, an insulated paper washer and conductive glass of the infrared liquid crystal light valve are sequentially stacked from bottom to top and cured together through the corresponding process. The sheared polymer network infrared liquid crystal light valve is mainly characterized in that: a raw material of the sheared polymer network liquid crystal layer is a mixture which is prepared by using nematic liquid crystal and flexible UV optical adhesive according to a certain proportion; a semi-finished product of the liquid crystal light valve after the molding is implemented two times of UV exposures under high temperature and normal temperature and the mechanical shear, thereby allowing the liquid crystal mixture layer to be changed into the sheared polymer network liquid crystal layer; and the edge sealing is carried out to the sheared polymer network liquid crystal layer by using the adhesive under the shearing state. The infrared liquid crystal light valve of the invention has the advantages of wide spectrum, high frame rate, wide dynamic range, simple production process, low cost and high reliability, etc.

Description

technical field [0001] The invention relates to an image conversion device, namely an infrared liquid crystal light valve capable of converting a visible light image into an infrared image, in particular to an infrared liquid crystal light valve based on a shear polymer network liquid crystal and a manufacturing method thereof. Background technique [0002] The optoelectronic system of modern weapons adopts a variety of high-tech and gradually tends to be an intelligent system integrating multi-band, multi-sensor, multi-function and full-automatic. In order to meet the needs of simulation testing and evaluation of modern weapon systems, optoelectronic simulation systems are developing in the direction of high precision, high frame rate, wide spectrum and high spatial resolution. As a core device of the infrared scene generator, the research on the infrared liquid crystal light valve has received widespread attention at home and abroad. [0003] An infrared liquid crystal li...

AI Technical Summary

Problems solved by technology

Due to its low frame rate, the infrared scene generated by using this liquid crystal light valve cannot meet the needs of the simulation test of the new generation of imaging seeker, infrared imaging tracking and fire control system hardware-in-the-loop simulation

Secondly, the manufacturing process of this liquid crystal light valve is complicated, and it needs to be plated with an alignment layer and a gasket, and the liquid crystal is poured under vacuum conditions.

In addition, after filling the liquid crystal, it is easy to cause air to enter the liquid crystal, which reduces the reliability of the device.

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