激光与光电子学进展, 2019, 56 (12): 122203, 网络出版: 2019-06-13   

大相对孔径、长焦距的紫外告警光学系统设计 下载: 984次

Design of Ultraviolet Warning Optical System with Large Relative Aperture and Long Focal Length
作者单位
北京空间机电研究所, 北京 100049
摘要
利用ZEMAX软件设计了一款大相对口径、长焦距的远心紫外告警光学系统。光学系统包含6片球面透镜,总长约为154 mm。其中光学系统焦距为100 mm,相对孔径为1∶2,视场角为10°。采用具有负折射率温度系数的CaF2作为负透镜进行热补偿。结果表明:在-10~40 ℃内各视场平均光学调制传递函数在10 lp/mm处高于0.4,最大点列图方均根半径小于50 μm。该系统具有成像质量好、结构紧凑、温度适应范围广的特点,适用于紫外告警相机。
Abstract
A telecentric ultraviolet warning optical system with a large relative aperture and a long focal length is designed using ZEMAX. This optical system contains six pieces of spherical lenses and has a total length of 154 mm. The system has a focal length of 100 mm, a relative aperture of 1∶2, and a field of view angle of 10°. CaF2 with a negative temperature coefficient of the refractive index is used as a concave lens for thermal compensation. The result shows that the average light modulation transfer function of each field of view is >0.4 at 10 lp/mm. Further, the biggest root-mean-square radius of the spot diagrams is smaller than 50 μm. With the advantages of excellent imaging quality, compact configuration, and wide temperature adaptability, the system is suitable for ultraviolet warning cameras.

曹桂丽, 刘芳芳, 贾永丹, 张倩, 徐崇斌. 大相对孔径、长焦距的紫外告警光学系统设计[J]. 激光与光电子学进展, 2019, 56(12): 122203. Guili Cao, Fangfang Liu, Yongdan Jia, Qian Zhang, Chongbin Xu. Design of Ultraviolet Warning Optical System with Large Relative Aperture and Long Focal Length[J]. Laser & Optoelectronics Progress, 2019, 56(12): 122203.

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