本文介绍已建立的一套动态可见－红外图象转换系统，采用ＣｄＳ－ＣｄＳｅ光导薄膜型液晶光阀作为关键转换器件，实现了由可见图象到红外（８～１２μｍ）图象的视频转换，其对比度达∶１，响应时间为４０ｍｓ，极限分辨率为１０ｌｐ／ｍｍ． In this paper, a set of dynamic visible - infrared image conversion system is introduced. The CdS - CdSe thin film liquid crystal light valve is adopted as key conversion device to realize the video conversion from visible image to infrared (8 ~ 12μm) The contrast of up to: 1, the response time of 40ms, the ultimate resolution of 10lp / mm.