| hhao100 |
2014-09-10 09:48 |
之前回家了，好久没登了，这个我也不知道 J<($L}T*$
在modern lens design英文第一版中329页中有个注释提到了这个。看来是用来计算higher-order contributions的。 a._^E/EV
F 'UguC">
The fifth, seventh, etc., orders may also be computed from paraxial raytrace data. 3dX=xuQ%/
Buchdahl develops specific equations by which the higher-order contributions may be -0KbdHIKb'
calculated. The equations for the fifth-order contributions are very complex and are usu- Wq{d8|)1
ally calculated as part of a computer optical software package
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