摘要 为 提高头盔式单目微光夜视仪中光学系统的成像质量，并满足夜视仪结构紧凑、质量小的指标要求，提出在微光夜视仪光学系统设计中引入高次项非球面透镜的设计方 法。针对具体的头盔式微光夜视仪，根据微光物镜、目镜系统技术参数计算理论，确定该微光夜视仪光学系统的技术参数，应用光学设计软件ZEMX上机调试，并 在光学系统设计中引入高次非球面透镜，使物镜系统镜片数由原来的9片减少为6片，目镜系统由原来的9片减少为7片，简化了结构，并提高了成像质量。设计结 果表明：在头盔式微光夜视系统中采用非球面透镜可以提高系统成像质量，简化系统结构。
关键词 微光夜视仪 光学系统设计 非球面透镜
Lens design in helmet-mounted LLL night-vision system
SHANG Hua,LIU Jun,GAO Ming,MAO Cui-li,MENG Li-zhuang
Abstract To improve the imaging quality of the lens used in helmet-mounted low-levellight (LLL) night vision system and make the lens light in weight, small in size, compact in structure, a high order aspheric lens is designed. According to the theoretical calculation of the lens parameters specific to the helmet-mounted LLL night-vision system, lens parameters are designed to meet the demand. With the high order aspheric lens designed, the number of lenses in object lens is reduced from 9 to 6 and the number of lenses in ocular is reduced from 9 to 7. The analysis results show that the configuration of the aspheric surface for helmet-mounted LLL night-vision systems can make its lens configuration simple.
Key words LLL night vision system design of optical system aspheric surface lens
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