Design of catadioptric anamorphic optical system
CHINESE OPTICS(2023)
摘要
The anamorphic optical system has a two-plane symmetry, with different focal lengths in the two symmetry planes. This system can obtain a wider field of view when using sensors with conventional size. We propose a method for designing catadioptric anamorphic optical systems based on their first-order aberra-tion characteristics. A catadioptric anamorphic optical system is designed by using a biconic surface, with a focal length of 500 mm in the XOZ plane and 1 000 mm in the YOZ plane. The system's F-number is 10, and the full field angle is 1(degrees)x1(degrees). The mean value of the full field of view MTF of the system is higher than 0.3 at 80 lp/mm. The overall structure of the system is compact, and the imaging quality is excellent.
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关键词
optical design,anamorphic optical system,catadioptric system,biconic surface
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