基于相位补偿的低温光学系统常温装调方法研究

基于对红外光学系统的热分析,提出一种低温光学系统的常温装调方法.在常温装调时为系统引入额外的相位板来补偿低温系统在常温时产生的离焦和表面变形.通过热分析获得离焦量和表面变形数据,设计出合适的相位板进行补偿,从而可以实现低温光学系统在常温环境下的正常装调和测试.

Assembling and alignment of cryogenic optical system at room temperature based on phase compensation

Based on the thermal analysis of infrared optical system,a novel assembling and alignment method of cryogenic optical system is introduced.When assembled and adjusted at room temperature,an additional phase board is set in the system to compensate the defocusing and surface changes.The data of defocusing and surface changes can be acquired by thermal analysis in advance.The suitable phase board is designed to compensate the changes.By this way,the normal assembling and testing of cryogenic optical system at room temperature can be realized.