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sansummer 2011-06-21 13:48

公差分析结果的疑问

我现在在初学zemax的公差分析，找了一个双胶合透镜 idc4Cf+4  
^Q.,\TL01  
[attachment=34427] }Hcx=}j  
Yr+23Ro  
然后添加了默认公差分析，基本没变  HpW 42  
g|%L"-%gJ  
[attachment=34428] ^G|98yc!'  
%Mn.e a  
然后运行分析的结果如下： H(-4:BD?  
{Wv% zA*8  
Analysis of Tolerances x_MJJ(q8g  
9em*r9-  
File : E:\光学设计资料\zemax练习\f500.ZMX _yH`t[  
Title: 'Ot,H_pE  
Date : TUE JUN 21 2011 6'C2SihYp  
h|;qG)f^  
Units are Millimeters. K#mOSY;}  
All changes are computed using linear differences. ,Zf 9RM  
..W-76{  
Paraxial Focus compensation only. bzZ>lyH  
LT@OWH  
WARNING: Solves should be removed prior to tolerancing. +T{'V^  
, YW|n:X  
Mnemonics: ,!#ccv+Vm%  
TFRN: Tolerance on curvature in fringes. :aAEJ  
TTHI: Tolerance on thickness. kv{}C)kt3  
TSDX: Tolerance on surface decentering in x. &^".2)zU  
TSDY: Tolerance on surface decentering in y. '0RwO[A#1  
TSTX: Tolerance on surface tilt in x (degrees). B 0ee?VC  
TSTY: Tolerance on surface tilt in y (degrees). {QAv~S>4  
TIRR: Tolerance on irregularity (fringes). R^#@lI~  
TIND: Tolerance on Nd index of refraction. ]lOh&Cz[  
TEDX: Tolerance on element decentering in x. _BM4>r?\  
TEDY: Tolerance on element decentering in y. Q \hY7Xq'  
TETX: Tolerance on element tilt in x (degrees). pB:$lS  
TETY: Tolerance on element tilt in y (degrees). !CTxVLl"F  
p#P~Q/;  
WARNING: RAY AIMING IS OFF. Very loose tolerances may not be computed accurately. eU@Cr7@,|  
t= #&fSR  
WARNING: Boundary constraints on compensators will be ignored. Z.PBu|Kx  
K2)!h.W  
Criterion           : Geometric MTF average S&T at 30.0000 cycles per mm lSwcL  
Mode                : Sensitivities fwR_OB: $  
Sampling            : 2 b*kfWG-6t  
Nominal Criterion   : 0.54403234 G6 0S|d  
Test Wavelength     : 0.6328 c}Z6V1]QP  
<UP m=Hb  
~uWOdm-"[  
Fields: XY Symmetric Angle in degrees pKUP2m`MW  
#      X-Field      Y-Field       Weight    VDX    VDY    VCX    VCY 9A'Y4Kg<C  
1   0.000E+000   0.000E+000   1.000E+000  0.000  0.000  0.000  0.000 l|2D/K5  
-Apc$0ZsN  
Sensitivity Analysis: H6*^Ga  
OR1DYHHT/1  
                 |----------------- Minimum ----------------| |----------------- Maximum ----------------| _ gj&$zP  
Type                      Value      Criterion        Change          Value      Criterion        Change S[3iA~)Z-  
Fringe tolerance on surface 1 )-15 N  
TFRN   1            -1.00000000     0.54257256    -0.00145977     1.00000000     0.54548607     0.00145374 1$/MrPT(b  
Change in Focus                :      -0.000000                            0.000000 2&mGT&HAVA  
Fringe tolerance on surface 2 /1=4"|q>h'  
TFRN   2            -1.00000000     0.54177471    -0.00225762     1.00000000     0.54627463     0.00224230 MM_k ]-7  
Change in Focus                :       0.000000                            0.000000 2j JmE&)7,  
Fringe tolerance on surface 3 <*ZJaBwWU~  
TFRN   3            -1.00000000     0.54779866     0.00376632     1.00000000     0.54022572    -0.00380662 z;f2*F  
Change in Focus                :      -0.000000                            0.000000 E51dV:l  
Thickness tolerance on surface 1 .T<= z  
TTHI   1   3        -0.20000000     0.54321462    -0.00081772     0.20000000     0.54484759     0.00081525 >eQr<-8  
Change in Focus                :       0.000000                            0.000000 $,=6[T!z+e  
Thickness tolerance on surface 2 v4,h&JLt  
TTHI   2   3        -0.20000000     0.54478712     0.00075478     0.20000000     0.54327558    -0.00075675 MB^~%uZ2K  
Change in Focus                :       0.000000                           -0.000000 H(c72]@Vg  
Decenter X tolerance on surfaces 1 through 3 1/1Xk,E  
TEDX   1   3        -0.20000000     0.54401464   -1.7700E-005     0.20000000     0.54401464   -1.7700E-005 } "vW4   
Change in Focus                :       0.000000                            0.000000 Ix@&$!'k  
Decenter Y tolerance on surfaces 1 through 3 - O98pi  
TEDY   1   3        -0.20000000     0.54401464   -1.7700E-005     0.20000000     0.54401464   -1.7700E-005 T3UMCqc=  
Change in Focus                :       0.000000                            0.000000 :K`ESq!8u  
Tilt X tolerance on surfaces 1 through 3 (degrees) O4\Z!R60g  
TETX   1   3        -0.20000000     0.54897548     0.00494314     0.20000000     0.54897548     0.00494314 K5ZC:Ks  
Change in Focus                :       0.000000                            0.000000 6fH@wQ"wN  
Tilt Y tolerance on surfaces 1 through 3 (degrees) z?/1Kj}xG  
TETY   1   3        -0.20000000     0.54897548     0.00494314     0.20000000     0.54897548     0.00494314 o+`6LKg;  
Change in Focus                :       0.000000                            0.000000 Va,<3z%O<  
Decenter X tolerance on surface 1 j Uv!9Y}F  
TSDX   1            -0.20000000     0.53999563    -0.00403671     0.20000000     0.53999563    -0.00403671 ORGD  
Change in Focus                :       0.000000                            0.000000 1wzqGmjmt  
Decenter Y tolerance on surface 1 7Dzuii?1  
TSDY   1            -0.20000000     0.53999563    -0.00403671     0.20000000     0.53999563    -0.00403671 ,g-EW jN  
Change in Focus                :       0.000000                            0.000000  ~\,w {  
Tilt X tolerance on surface (degrees) 1 D0k 8^  
TSTX   1            -0.20000000     0.42678383    -0.11724851     0.20000000     0.42678383    -0.11724851 t*z~5_/  
Change in Focus                :       0.000000                            0.000000 Re:jVJg Bz  
Tilt Y tolerance on surface (degrees) 1 9CA^B2u  
TSTY   1            -0.20000000     0.42678383    -0.11724851     0.20000000     0.42678383    -0.11724851 ^4r73ak/):  
Change in Focus                :       0.000000                            0.000000 >_rha~   
Decenter X tolerance on surface 2 i|w8.}0  
TSDX   2            -0.20000000     0.51705427    -0.02697807     0.20000000     0.51705427    -0.02697807 /MY9 >  
Change in Focus                :       0.000000                            0.000000 IdYzgDH  
Decenter Y tolerance on surface 2 d(vsE%/!  
TSDY   2            -0.20000000     0.51705427    -0.02697807     0.20000000     0.51705427    -0.02697807 Zfk*HV#\  
Change in Focus                :       0.000000                            0.000000 l Z#o+d2Y  
Tilt X tolerance on surface (degrees) 2 )1N 54FNO  
TSTX   2            -0.20000000     0.35349910    -0.19053324     0.20000000     0.35349910    -0.19053324 E$W{8?:{  
Change in Focus                :       0.000000                            0.000000 +iRq8aS_  
Tilt Y tolerance on surface (degrees) 2 QM3,'?ekRH  
TSTY   2            -0.20000000     0.35349910    -0.19053324     0.20000000     0.35349910    -0.19053324 1(|D'y#  
Change in Focus                :       0.000000                            0.000000 WZOY)>K  
Decenter X tolerance on surface 3 xe7O/',pa=  
TSDX   3            -0.20000000     0.53419039    -0.00984195     0.20000000     0.53419039    -0.00984195 ]| N3eu  
Change in Focus                :       0.000000                            0.000000 q@b|F-  
Decenter Y tolerance on surface 3 Fk(JSiU  
TSDY   3            -0.20000000     0.53419039    -0.00984195     0.20000000     0.53419039    -0.00984195 (P&4d~) m  
Change in Focus                :       0.000000                            0.000000 vN 2u34  
Tilt X tolerance on surface (degrees) 3 0sI1GhVR  
TSTX   3            -0.20000000     0.42861670    -0.11541563     0.20000000     0.42861670    -0.11541563 T+N|R  
Change in Focus                :       0.000000                            0.000000 xs\!$*R  
Tilt Y tolerance on surface (degrees) 3 OB[o2G<0  
TSTY   3            -0.20000000     0.42861670    -0.11541563     0.20000000     0.42861670    -0.11541563 | 8qBm  
Change in Focus                :       0.000000                            0.000000 UzXE_ S  
Irregularity of surface 1 in fringes zBO(`=|  
TIRR   1            -0.20000000     0.50973587    -0.03429647     0.20000000     0.57333868     0.02930634 gp$Ucfu'  
Change in Focus                :       0.000000                            0.000000 u:aW 8  
Irregularity of surface 2 in fringes )tCX y4  
TIRR   2            -0.20000000     0.53400904    -0.01002330     0.20000000     0.55360281     0.00957047 WL`9~S  
Change in Focus                :       0.000000                            0.000000 dw.F5?j`b  
Irregularity of surface 3 in fringes sp@E8G%xO  
TIRR   3            -0.20000000     0.58078982     0.03675748     0.20000000     0.49904394    -0.04498840 JG9`h#  
Change in Focus                :       0.000000                            0.000000 F4<O2!V  
Index tolerance on surface 1 A AHt218  
TIND   1            -0.00100000     0.52606778    -0.01796456     0.00100000     0.56121811     0.01718578 Ed9Z9  
Change in Focus                :       0.000000                            0.000000 Lm@vXgMD  
Index tolerance on surface 2 o)OUWGjb/K  
TIND   2            -0.00100000     0.55639086     0.01235852     0.00100000     0.53126361    -0.01276872 hJzxbr <  
Change in Focus                :       0.000000                           -0.000000 {.yStB. T  
,39aF*r1Q  
Worst offenders: _fZZ_0\Q  
Type                      Value      Criterion        Change VUI|.76g  
TSTY   2            -0.20000000     0.35349910    -0.19053324 -s9P 8W  
TSTY   2             0.20000000     0.35349910    -0.19053324 )K'N(w  
TSTX   2            -0.20000000     0.35349910    -0.19053324 >J|]moSVA  
TSTX   2             0.20000000     0.35349910    -0.19053324 k</%YKk  
TSTY   1            -0.20000000     0.42678383    -0.11724851 v)2M1  
TSTY   1             0.20000000     0.42678383    -0.11724851 Y?ez9o:/#  
TSTX   1            -0.20000000     0.42678383    -0.11724851 ID.n1i3  
TSTX   1             0.20000000     0.42678383    -0.11724851 CRbdAqofV  
TSTY   3            -0.20000000     0.42861670    -0.11541563 Hcc"b0>}{  
TSTY   3             0.20000000     0.42861670    -0.11541563 >5Wlc$bc  
VXR]"W=  
Estimated Performance Changes based upon Root-Sum-Square method: Xn~I=Ml d  
Nominal MTF                 :     0.54403234 f]7M'sy|  
Estimated change            :    -0.36299231 ' oF xR003  
Estimated MTF               :     0.18104003 191&_*Xb  
Q[+ac*F=Y  
Compensator Statistics: T97]P-}  
Change in back focus: |Yq$s U  
Minimum            :        -0.000000 t%530EB3  
Maximum            :         0.000000 "_2Ng<2  
Mean               :        -0.000000 W+*5"h  
Standard Deviation :         0.000000 M)sZSH.<O  
D1nq2GwS  
Monte Carlo Analysis: U35AX9/  
Number of trials: 20 0@2mXO9f"  
e[Abp~@M1  
Initial Statistics: Normal Distribution 5wUUx#  
6rS$yjTX!  
  Trial       Criterion        Change n]dL?BJ  
      1     0.42804416    -0.11598818 ,RN:^5 p  
Change in Focus                :      -0.400171 QJ|ap4r  
      2     0.54384387    -0.00018847 4e;QiTj  
Change in Focus                :       1.018470 R0oKbs{  
      3     0.44510003    -0.09893230 ;W>Y:NCrp  
Change in Focus                :      -0.601922 r!,}Z=cGe  
      4     0.18154684    -0.36248550 .Vq)zi1<  
Change in Focus                :       0.920681 c*UvYzDZL  
      5     0.28665820    -0.25737414 OM{WI27  
Change in Focus                :       1.253875 #[#KL/i)$  
      6     0.21263372    -0.33139862 b*ef);  
Change in Focus                :      -0.903878 #2iD'>bQ  
      7     0.40051424    -0.14351809 y,pZTlE  
Change in Focus                :      -1.354815 g R nOd  
      8     0.48754161    -0.05649072 C ;(t/zh  
Change in Focus                :       0.215922 Et_V,s<|  
      9     0.40357468    -0.14045766 UU8pz{/  
Change in Focus                :       0.281783 /t-fjB{=G  
     10     0.26315315    -0.28087919 I5h[%T  
Change in Focus                :      -1.048393 NAPX_B,6  
     11     0.26120585    -0.28282649 :rP#I#,7w  
Change in Focus                :       1.017611 n<B<93f/  
     12     0.24033815    -0.30369419 fb  da  
Change in Focus                :      -0.109292 `-3o+ID\  
     13     0.37164046    -0.17239188 5[n(7;+gw  
Change in Focus                :      -0.692430 U.{l;EL:T  
     14     0.48597489    -0.05805744 {)AMwq  
Change in Focus                :      -0.662040 ^9-&o  
     15     0.21462327    -0.32940907 =vT<EW}[  
Change in Focus                :       1.611296 {-BRt)L[  
     16     0.43378226    -0.11025008 CIVnCy z  
Change in Focus                :      -0.640081 fh^lO ^  
     17     0.39321881    -0.15081353 rxme(9M  
Change in Focus                :       0.914906 i_][P TH  
     18     0.20692530    -0.33710703 {647|j;e  
Change in Focus                :       0.801607 J9T3nTfL  
     19     0.51374068    -0.03029165 ={?v Ab:  
Change in Focus                :       0.947293 9C t`  
     20     0.38013374    -0.16389860 OCy0#aPRS  
Change in Focus                :       0.667010 :iR \%  
o->\vlbD  
Number of traceable Monte Carlo files generated: 20 N8`?t5  
LW:o8ES33  
Nominal     0.54403234 #P#-xz  
Best        0.54384387    Trial     2 &Z?ut *%S  
Worst       0.18154684    Trial     4 2BCtJ`S`  
Mean        0.35770970 f&D]anf33  
Std Dev     0.11156454 OGiV{9U  
%zU`XVNN+  
mJB2)^33a  
Compensator Statistics: )bx_;9Y{  
Change in back focus: 1c+]gIe  
Minimum            :        -1.354815 !A1)|/ a@  
Maximum            :         1.611296  Xtq{%  
Mean               :         0.161872 I]!^;))  
Standard Deviation :         0.869664 ?OdJqw0,G  
w;v7_  
90% >       0.20977951               Q !qrNa6  
80% >       0.22748071               )6~1 ^tD  
50% >       0.38667627               K\XyZ  
20% >       0.46553746               V#ev-\k}@  
10% >       0.50064115                /J)l/oI  
#E0t?:t5bk  
End of Run. qNyzU@  
T!W~n ZC  
这就有了些疑问，为什么我选择的补偿器是近轴焦点，而分析结果近轴焦点都不变化？？应该是变得。另外最后的蒙特卡洛分析，只有10%的大于0.5（我用的是MTF作为评价方式），可是我设计的MTF如图 ^w~23g.  
[attachment=34429] Nx#4W1B[`H  
,7,g%?_P  
是大于0.6左右的，难道我按照这个默认的公差来加工的话，只有10%的才可能大于0.5？那太低了啊，请问这该怎么进行进一步处理。或者之前哪有问题 %7`f{|.  
drwgjLC+  
不吝赐教
sansummer 2011-06-21 15:00
我又试了试，原来是得根据上面的结果不断修改公差，放松或者变紧，然后在做公差分析，不断提高蒙特卡罗的结果。但是比如就拿我这个来说，理想是达到30lp处>0.6，那么实际做蒙特卡罗公差分析时，百分之多少以上的MTF是合格的呢？
sansummer 2011-06-22 08:56
90% >       0.20977951                  QH]M   
80% >       0.22748071                 *b}>cn)<v  
50% >       0.38667627                 eK/?%t  
20% >       0.46553746                 aj,)P3DJu  
10% >       0.50064115 Ut]+k+ 4  
0^'B3$>  
最后这个数值是MTF值呢，还是MTF的公差？ 8&"(WuZ@  
#sKWd  
也就是说，这到底是有90%的产品MTF大于0.20977951还是90%的产品的MTF变化量大于0.20977951？？？   Kt>X3m,  
O?EB8RB  
怎么没人啊，大家讨论讨论吗
sansummer 2011-06-23 08:21
没有人啊？？？
天地大同 2011-06-23 09:35
引用第2楼sansummer于2011-06-22 08:56发表的  : t0PQ~|H<KV  
90% >       0.20977951                 dw@E)  
80% >       0.22748071                 D1,O:+[;.  
50% >       0.38667627                 aI#4H+/  
20% >       0.46553746                 ST1Ts5I  
10% >       0.50064115 Mj0Cat=  
....... (U.**9b;  
;'RFo?u K  
AZFWuPJo  
这些数值都是MTF值
天地大同 2011-06-23 09:38
Criterion           : Geometric MTF average S&T at 30.0000 cycles per mm   .")b?#K  
Mode                : Sensitivities c|wCKn}`  
Sampling            : 2 MQcE6)  
Nominal Criterion   : 0.54403234 #G _/.h@  
Test Wavelength     : 0.6328 2?i\@r@E|  
J;~|p h  
波长632.8nm 时 mtf 是 0.54403234  没达到0.6
sansummer 2011-06-24 09:37
谢谢。您说的“波长632.8nm 时 mtf 是 0.54403234  没达到0.6”这是一个评价标准吧？ YaFcz$GE_  
?)A2Kw>2  
这个评价标准和我理想的设计结果的0.6有什么联系吗，另外这个 0.54403234  是这么来的？
天地大同 2011-06-24 11:21
你试试把原来的系统波长改成632.8nm，看看Geometric MTF    30 per mm 的mtf值是不是0.54403234
sansummer 2011-06-24 14:30
啊...这倒也是。换了波长的确可能有所变化。另外还有就是如果现在百分比太低，我是否应该考虑把最敏感的公差再紧一些，就会好了？
天地大同 2011-06-28 14:14
恩，多多尝试
sansummer 2011-06-28 15:04
最后一个问题，你的头像怎么换的？哈哈
天地大同 2011-06-28 16:09
是啊  本来没有的  最近刚弄的
sansummer 2011-06-28 18:02
多谢多谢，我也换头像啦
guapiqlh 2011-12-29 09:54
自己看看书不是一样可以解决吗？
雷伽多 2012-02-27 15:15
楼主分享一下学习ZEMAX公差分析的心得吧。我也刚刚学习这块，很是晕，不知怎么入手。看了一些相关资料，总说蒙特卡洛分析可以模拟生产装配的实际情况，我就是不知道他是如何做到的
zhujiehui 2012-02-27 16:32
学习一下啊
雷伽多 2012-03-07 17:37
额。。。请问你把敏感的公差调紧了后，百分比数有所变化吗？我也遇到同样的问题。。。
nanuto 2012-03-09 18:38
好样的
licc 2012-08-04 10:38
好高深
wmh1985 2012-08-06 21:23
楼主 太强大了  能不能讲的 系统一些了 yKDZ+3xK]  
毛毛虫07 2013-06-21 11:12
请问，公差设置的阿贝偏差应该设置成多少呢？
毛毛虫07 2013-06-21 11:16
天地大同:Criterion           : Geometric MTF average S&T at 30.0000 cycles per mm   ?360SQ<  
Mode                : Sensitivities #ko6L3Pi  
Sam .. (2011-06-23 09:38)  _FFv#R*4  
28+HKbgK  
我们导师说让用蒙特卡罗分析法，是不是skip sensitivity 模式？还有，geom MTF和 diff MTF有什么区别？
zhu1988zi 2013-11-28 15:25
楼主的头像太慎人！
唐千永 2014-04-17 11:22
     公差分析这里 我也不是很清楚 ，学习一下
nd871693070 2020-03-19 10:47
一起学习下 s?HsUD$b  
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