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Question

曲率半径设置F数求解,系统是如何计算的


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陈老师@yuan.chen,您好,

请教一下,光学系统最后一面曲率半径设置F数求解,其他面不变,只改变最后一面曲率半径,确保系统F数,这里有个疑问,这个F数求解zemax是具体如何计算的呢?有没有最后一面的曲率半径和最后一面口径/焦距/F数的关系呢?谢谢

2 replies

yuan.chen
Zemax Staff
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  • Zemax Staff
  • 275 replies
  • March 9, 2023

Hello, 

关于F数求解曲率,在帮助文档的以下路径中有记载哈。

The Setup Tab > Editors Group (Setup Tab) > Lens Data Editor > Solve Types (lens data editor) > Curvature Solves

This solve will force the curvature of the surface such that the marginal ray angle exiting the surface is -1/2F where F is the paraxial F/#. The letter “F” will appear in the cell to indicate that the F/# solve is active on that surface.

个人理解是没有最后一面的曲率半径和最后一面口径/焦距/F数的关系(或者说有隐含的条件没有列出来?)。毕竟到达最后一个表面的边缘光线的方向余弦确定,折射率差确定,似乎没有额外的变量对它产生影响?


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  • Author
  • 5 replies
  • March 10, 2023

好的,谢谢回复


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