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. ~a$h\F'6
具体的内容请见下面: VW`SqUl
/SW*y@R2l
Fields: Generally speaking, the field definitions used for optimization and analysis are inadequate for
B\54e Tn
tolerancing. for example, a rotationally symmetric lens may use field definitions of 0, 7, and 10 degrees. For %T6
sm
tolerancing purposes, the lack of symmetry in the field definitions may cause inaccurate results when analyzing )4#YS$B$@)
tilt or decenter tolerances. When constructing a merit function to use for tolerancing ZEMAX can use three ]\Z8MxF D
different field settings: 9Bao~(j/k
Y-Symmetric: ZEMAX computes the maximum field coordinate, then defines new field points at +1.0, +0.7, 'MgYSP<
0.0, -0.7, and -1.0 times the maximum field coordinate, in the Y direction only. All X field values are set to zm!M'|~@7
zero. This is the default for rotationally symmetric lenses. |:w)$i& *
XY-Symmetric: Similar to Y-Symmetric, except there are 9 field points used. The 5 Y-Symmetric points are "wy2u~
used, and -1.0, -0.7, +0.7, and +1.0 are added in the X axis direction only. ~pT1,1
User Defined: Use whatever field definitions exist in the current lens file. This option is required when using q6PG=9d0B
vignetting factors, tolerancing multiple configuration lenses, or using tolerance scripts. It is also highly d{J@A;d a
recommended when tolerancing non rotationally symmetric lenses or lenses with complex field weighting X5p b9zRq
that user defined fields be used.
