主动式温度自适应技术在非制冷热像仪光学系统中的应用  

Application of Active-athermal Compensation to Uncooled IR Imaging Sensor System

作　　者：束慧琴 窦建云[1] 曹凌[1] 田桂平[1] 王红伟[1] 

机构地区：[1]昆明物理研究所,云南昆明650223

出　　处：《红外技术》2013年第10期612-616,共5页Infrared Technology

摘　　要：针对双视场成像光学系统的特点,对目前机电主动式温度适应技术需要手动调焦作了改进,采用基于温度传感器的温度信息和视场状态控制调焦机构运动技术,找出不同温度点下调焦镜的最佳位置并写入热像仪伺服控制板主控芯片,实现随环境温度变化自动调焦,达到快速最佳成像的目的。有效保证了双视场红外光学系统在-40℃～50℃范围内的性能。With the characteristics of IR dual field-of-view optical system, a method of active athermalization by using thermograph and switching zoom system is presented. So this system achieves the best temperature compensation simultaneously by moving the focus lens with the same distance. The moving distance was written into the command chip, and the system can gain the best images rapidly. As the ambient temperature varied, the focus lens moved automatically. This method satisfies the requirement oflR dual field-of-view optical system imaging from --40℃ to 50℃.

关 键 词：温度效应 光学主动式 双视场成像光学 伺服控制 

分 类 号：TN216[电子电信—物理电子学]