还有一点忘了说了, 就是公差计算时的视场设定? 是Y对称? XY对称? 用户自定义? 我的解释只是针对用户自定义时的结果. Vmc5IPd{\
具体的内容请见下面: pe0F0Ruy
~< P
0]ju
Fields: Generally speaking, the field definitions used for optimization and analysis are inadequate for
bo<~jb{
tolerancing. for example, a rotationally symmetric lens may use field definitions of 0, 7, and 10 degrees. For N O2XA\
tolerancing purposes, the lack of symmetry in the field definitions may cause inaccurate results when analyzing t#yk ->,
tilt or decenter tolerances. When constructing a merit function to use for tolerancing ZEMAX can use three ^aIPN5CK
different field settings: PUz *!9HC
Y-Symmetric: ZEMAX computes the maximum field coordinate, then defines new field points at +1.0, +0.7, 214Ml0/%
0.0, -0.7, and -1.0 times the maximum field coordinate, in the Y direction only. All X field values are set to pny11 C
zero. This is the default for rotationally symmetric lenses. V GL aN%|
XY-Symmetric: Similar to Y-Symmetric, except there are 9 field points used. The 5 Y-Symmetric points are < z+t,<3D
used, and -1.0, -0.7, +0.7, and +1.0 are added in the X axis direction only. Okgv!Nt8)A
User Defined: Use whatever field definitions exist in the current lens file. This option is required when using cO-7ke
vignetting factors, tolerancing multiple configuration lenses, or using tolerance scripts. It is also highly 68bQ;Dv
recommended when tolerancing non rotationally symmetric lenses or lenses with complex field weighting Q0$8j-1I
that user defined fields be used.
