還有一點(diǎn)忘了說了, 就是公差計(jì)算時(shí)的視場(chǎng)設(shè)定? 是Y對(duì)稱? XY對(duì)稱? 用戶自定義? 我的解釋只是針對(duì)用戶自定義時(shí)的結(jié)果. o 5;V=8T;
具體的內(nèi)容請(qǐng)見下面: <D1>;C
5VLJ:I?0O
Fields: Generally speaking, the field definitions used for optimization and analysis are inadequate for $@ R[$/
tolerancing. for example, a rotationally symmetric lens may use field definitions of 0, 7, and 10 degrees. For Y)7LkZO(y
tolerancing purposes, the lack of symmetry in the field definitions may cause inaccurate results when analyzing b+6%Mu}o
tilt or decenter tolerances. When constructing a merit function to use for tolerancing ZEMAX can use three \/
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different field settings: v}) -:
Y-Symmetric: ZEMAX computes the maximum field coordinate, then defines new field points at +1.0, +0.7, kZfUwF:yN
0.0, -0.7, and -1.0 times the maximum field coordinate, in the Y direction only. All X field values are set to \i}:Vb(^
zero. This is the default for rotationally symmetric lenses. 0>aA I3E
XY-Symmetric: Similar to Y-Symmetric, except there are 9 field points used. The 5 Y-Symmetric points are <z2*T \B!8
used, and -1.0, -0.7, +0.7, and +1.0 are added in the X axis direction only. ' u)zQAaw.
User Defined: Use whatever field definitions exist in the current lens file. This option is required when using w4"4(SR.
vignetting factors, tolerancing multiple configuration lenses, or using tolerance scripts. It is also highly .dr-I7&!
recommended when tolerancing non rotationally symmetric lenses or lenses with complex field weighting <h vVh9
that user defined fields be used.
