Thermal analysis of 600mm diameter telescope optical system using CodeV

To analyze the parameters and imaging quality changing of the 600mm diameter telescope when the environmental temperature changing,CodeV software was used for the simulation.The analysis result showed that the imaging quality of the system was affected seriously when temperature changed from -40～+40℃equably,and the focal length changed a lot also.And the changing of the system could not be compensated by re-focusing along,the axial moving of the field lens should be added as a compensator also.The analysis showed that,using this compensation solution,the parameters and imaging quality of the telescope could keep unchanging.