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| 微光夜视头盔成像光学系统的设计与研制 |
| Low-light-level night vision helmet imaging system design and development |
| 投稿时间：2025-06-09 |
| DOI：10.3969/j.issn.1005-5630.202506090081 |
| 中文关键词: 微光夜视 成像镜头 非球面光学元件 光学设计 |
| 英文关键词:low-light-level night vision imaging lens aspheric optical element optical design |
| 基金项目:福厦泉自创区协同专项(3502ZCQXT2023010); 福建省科技创新重点项目(2022G02018) |
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| 中文摘要: |
| 为解决军用与警用侦查设备的应用缺陷，设计了一款焦距为23 mm，视场角为40°，F数为0.9的微光夜视头盔成像镜头。该成像镜头工作波段为400～1000 nm，全视场光学畸变小于2%，在空间频率为53 lp/mm时，全视场调制传递函数大于0.3，光学系统总长为40 mm。该成像系统采用像元尺寸为9.5 μm 的CMOS图像传感器，并已完成试制与测试评估。研究结果表明，该设计具备通光孔径大、分辨率高、成本低且畸变小的优势。 |
| 英文摘要: |
| Design of a helmet-mounted low-light-level night vision imaging lens is studied in this paper. This imaging lens has focal length of 23 mm, field of view of 40°, F-number of 0.9. With working wavelength range of 400 -1000 nm, the optical distortion of this lens for the full field of view is less than 2%. With the spatial frequency of 53 lp/mm, the modulation transfer function for the full field of view is greater than 0.3. and the total length of the optical system is less than 40 mm. A CMOS image sensor with pixel size of 9.5 μm is used. The prototype of the helmet-mounted low-light-level night vision imaging system is completed and lens performance is evaluated. The research results show that the design has the advantages of large aperture, high resolution, low cost and minimal distortion. The research results can provide low-cost and high-performance low-light-level imaging solutions for military individual night vision devices, police investigation equipment and other application scenarios. |
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