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. LH_ 2oJ\
具体的内容请见下面: +\ySx^vi
>r*Zm2($MR
Fields: Generally speaking, the field definitions used for optimization and analysis are inadequate for ` Q8 D[
tolerancing. for example, a rotationally symmetric lens may use field definitions of 0, 7, and 10 degrees. For
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tolerancing purposes, the lack of symmetry in the field definitions may cause inaccurate results when analyzing ?~K2&eo
tilt or decenter tolerances. When constructing a merit function to use for tolerancing ZEMAX can use three 1)R)+ `y
different field settings: D[r
Y-Symmetric: ZEMAX computes the maximum field coordinate, then defines new field points at +1.0, +0.7, M Q+ek4
0.0, -0.7, and -1.0 times the maximum field coordinate, in the Y direction only. All X field values are set to t}tKm
zero. This is the default for rotationally symmetric lenses. /f[_]LeV]
XY-Symmetric: Similar to Y-Symmetric, except there are 9 field points used. The 5 Y-Symmetric points are m\>x_:sE
used, and -1.0, -0.7, +0.7, and +1.0 are added in the X axis direction only. Z~|J"2.
User Defined: Use whatever field definitions exist in the current lens file. This option is required when using ' !I?C/49k
vignetting factors, tolerancing multiple configuration lenses, or using tolerance scripts. It is also highly ,J ^Op
recommended when tolerancing non rotationally symmetric lenses or lenses with complex field weighting 6vA5L_
that user defined fields be used.
