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- W3205344307 abstract "根据CCTV（closed circuit television）镜头的使用需求，以“非相似”成像原理为基础，设计了一款双波段CCTV鱼眼镜头。系统工作波段480 nm～850 nm，可见光和近红外光双波段成像，可实现昼夜监控。镜头<i>F</i>数1.8、视场角180<sup>0</sup>、焦距1 mm、光学总长7.76 mm，具有大相对孔径、大视场角、小型化等特征。采用7组9片式反远距结构，无特殊玻璃、无非球面，大大降低了系统复杂化程度和加工制造成本。利用光学设计软件Zemax对其进行光学系统设计，选取1/3英寸CCD作为探测器，在奈奎斯特频率120 lp/mm时，其各个视场的子午调制传递函数曲线和弧矢调制传递函数曲线值均达到0.5以上，接近衍射极限，成像质量很好。全视场场曲均小于1 mm，相对畸变小于25%，相对照度在95%左右，满足CCTV镜头的使用要求，可广泛用于监控侦察等领域。" @default.
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- W3205344307 date "2021-01-01" @default.
- W3205344307 modified "2023-10-16" @default.
- W3205344307 title "Optical system design of dual band CCTV fish-eye lens" @default.
- W3205344307 doi "https://doi.org/10.5768/jao202142.0601009" @default.
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