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为了满足人们对超广角、大视野的取景需求,运用光学软件CODEV 和 ZEMAX 设计出一个用于运动 DV且结构紧凑的鱼眼镜头光学系统。该镜头由 5 片玻璃镜片和 3 片塑胶非球面镜片组成。设计结果如下:该镜头 F 数为 2.2,视场角 240°,系统总长度为 23mm,半像高 2.35mm,在 1/2 奈奎斯特频率即 178lp/mm频率处所有视场均大于 0.15,实现高清全景监控。鱼眼镜头产品经过投影检测,此产品的性能满足要求并能大量生产。
In order to meet people’s demands for ultra-wide-angle and large-field viewfinder, a compact fisheye lens optical system for sports DV is designed by optical software CODEV and ZEMAX. The lens consists of 5 glass lenses and 3 plastic aspherical lenses. The design results are as follows: The F-number of the lens is 2.2, the angle of view is 240 °, the total length of the system is 23 mm and the half-height is 2.35 mm. All the fields of view at the 1/2 Nyquist frequency, that is, 178 lp / mm, , To achieve high-definition panoramic monitoring. Fisheye lens products after projection testing, the performance of this product to meet the requirements and mass production.