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Application of Active-athermal Compensation to Uncooled IR Imaging Sensor System
Author(s): 
Pages: 612-616
Year: Issue:  10
Journal: Infrared Technology

Keyword:  ambiance temperature effectactive athermalizationIR dual field-of-view optical systemservocontrol;
Abstract: 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 of IR dual field-of-view optical system imaging from -40℃to 50℃.
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