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. V0c*M>V
具体的内容请见下面: fw|r{#d
TM[Z~n(wt
Fields: Generally speaking, the field definitions used for optimization and analysis are inadequate for :&#hjeltt
tolerancing. for example, a rotationally symmetric lens may use field definitions of 0, 7, and 10 degrees. For el;^cMY
tolerancing purposes, the lack of symmetry in the field definitions may cause inaccurate results when analyzing -TjYQ
tilt or decenter tolerances. When constructing a merit function to use for tolerancing ZEMAX can use three 8 y/YX
different field settings: l/DV
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Y-Symmetric: ZEMAX computes the maximum field coordinate, then defines new field points at +1.0, +0.7, E)NH6 ~
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 A\N$
zero. This is the default for rotationally symmetric lenses. Gx y>aS3
XY-Symmetric: Similar to Y-Symmetric, except there are 9 field points used. The 5 Y-Symmetric points are lk2F]@_kJH
used, and -1.0, -0.7, +0.7, and +1.0 are added in the X axis direction only. tA3]6SIK@
User Defined: Use whatever field definitions exist in the current lens file. This option is required when using :BC 0f9
vignetting factors, tolerancing multiple configuration lenses, or using tolerance scripts. It is also highly (GMKIw2
recommended when tolerancing non rotationally symmetric lenses or lenses with complex field weighting Y^2`)':
that user defined fields be used.
