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. q} >%8;nm
具体的内容请见下面: M2Qr(K|
yf+)6D -9n
Fields: Generally speaking, the field definitions used for optimization and analysis are inadequate for a=2%4Wmz
tolerancing. for example, a rotationally symmetric lens may use field definitions of 0, 7, and 10 degrees. For 0h_|t-9j
tolerancing purposes, the lack of symmetry in the field definitions may cause inaccurate results when analyzing 7NGxa6wi
tilt or decenter tolerances. When constructing a merit function to use for tolerancing ZEMAX can use three z:*|a +c y
different field settings: uXvtfc
Y-Symmetric: ZEMAX computes the maximum field coordinate, then defines new field points at +1.0, +0.7, TeM|:o
0.0, -0.7, and -1.0 times the maximum field coordinate, in the Y direction only. All X field values are set to 5j(k:a+!H
zero. This is the default for rotationally symmetric lenses. &QgR*,5eo
XY-Symmetric: Similar to Y-Symmetric, except there are 9 field points used. The 5 Y-Symmetric points are i/4>2y9/F4
used, and -1.0, -0.7, +0.7, and +1.0 are added in the X axis direction only. &8lZNv8;(p
User Defined: Use whatever field definitions exist in the current lens file. This option is required when using l_p2Riv
vignetting factors, tolerancing multiple configuration lenses, or using tolerance scripts. It is also highly i_%_ x*
recommended when tolerancing non rotationally symmetric lenses or lenses with complex field weighting o+' 6`g'8
that user defined fields be used.
