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. G
"`t$=0
具体的内容请见下面: N/i {j.=
9 `z^'k&
Fields: Generally speaking, the field definitions used for optimization and analysis are inadequate for `sPH7 ^R
tolerancing. for example, a rotationally symmetric lens may use field definitions of 0, 7, and 10 degrees. For $|pD}
tolerancing purposes, the lack of symmetry in the field definitions may cause inaccurate results when analyzing W@FRKDixG
tilt or decenter tolerances. When constructing a merit function to use for tolerancing ZEMAX can use three Lm"zW>v
different field settings: \1mTKw)S
Y-Symmetric: ZEMAX computes the maximum field coordinate, then defines new field points at +1.0, +0.7, Cso-WG,
0.0, -0.7, and -1.0 times the maximum field coordinate, in the Y direction only. All X field values are set to Gf y9?sa
zero. This is the default for rotationally symmetric lenses. {axMS yp;
XY-Symmetric: Similar to Y-Symmetric, except there are 9 field points used. The 5 Y-Symmetric points are Z]x)d|3;
used, and -1.0, -0.7, +0.7, and +1.0 are added in the X axis direction only. w~l%x iC
User Defined: Use whatever field definitions exist in the current lens file. This option is required when using B 7 ty*)i?
vignetting factors, tolerancing multiple configuration lenses, or using tolerance scripts. It is also highly Yo;Mexo!
recommended when tolerancing non rotationally symmetric lenses or lenses with complex field weighting Lc5I?}:;L
that user defined fields be used.
