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. 0Q7teXRM
具体的内容请见下面: L N z
1JQ5bB"
Fields: Generally speaking, the field definitions used for optimization and analysis are inadequate for 2xLEB&
tolerancing. for example, a rotationally symmetric lens may use field definitions of 0, 7, and 10 degrees. For V0)bP cS/
tolerancing purposes, the lack of symmetry in the field definitions may cause inaccurate results when analyzing 8H'ybfed
tilt or decenter tolerances. When constructing a merit function to use for tolerancing ZEMAX can use three Z8Iqgz7|y
different field settings: sX@}4[)<&
Y-Symmetric: ZEMAX computes the maximum field coordinate, then defines new field points at +1.0, +0.7, /^]/ iTg
0.0, -0.7, and -1.0 times the maximum field coordinate, in the Y direction only. All X field values are set to QdIx@[+WOq
zero. This is the default for rotationally symmetric lenses. HVJqDF
XY-Symmetric: Similar to Y-Symmetric, except there are 9 field points used. The 5 Y-Symmetric points are zq6)jH fq.
used, and -1.0, -0.7, +0.7, and +1.0 are added in the X axis direction only. Pz^C3h$5_
User Defined: Use whatever field definitions exist in the current lens file. This option is required when using <ni_78
vignetting factors, tolerancing multiple configuration lenses, or using tolerance scripts. It is also highly nt&"?
/s
recommended when tolerancing non rotationally symmetric lenses or lenses with complex field weighting kYhV1I
that user defined fields be used.
