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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 FQ=@mjh  
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然后添加了默认公差分析，基本没变 Yo[;W vu  
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[attachment=34428] 6`f2-f9%iq  
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然后运行分析的结果如下： Dk?\)lD`  
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Analysis of Tolerances .'Vww  
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File : E:\光学设计资料\zemax练习\f500.ZMX br|;'i%(  
Title: I'|$}/\`  
Date : TUE JUN 21 2011 ;VWAf;U;B  
}Hn/I,/  
Units are Millimeters. Q=]w !I\  
All changes are computed using linear differences. EVoE szR  
9(@\&>)  
Paraxial Focus compensation only. V O3x~E  
s0PrbL%_`  
WARNING: Solves should be removed prior to tolerancing. je!-J8{  
v8y1b%  
Mnemonics: >Q(3*d >  
TFRN: Tolerance on curvature in fringes. %Ah^E$&n2  
TTHI: Tolerance on thickness. >uSy  
TSDX: Tolerance on surface decentering in x. B[KJR?>  
TSDY: Tolerance on surface decentering in y. ONe# rKJ_  
TSTX: Tolerance on surface tilt in x (degrees). %"P,1&\^  
TSTY: Tolerance on surface tilt in y (degrees). #FNcF>3>  
TIRR: Tolerance on irregularity (fringes). 8O38# {[S  
TIND: Tolerance on Nd index of refraction. P'`r  
TEDX: Tolerance on element decentering in x. wu)w   
TEDY: Tolerance on element decentering in y. ^/r7@:  
TETX: Tolerance on element tilt in x (degrees).  -4cXRv]  
TETY: Tolerance on element tilt in y (degrees). hRCed4qA  
({q?d[q[  
WARNING: RAY AIMING IS OFF. Very loose tolerances may not be computed accurately. 6Udov pl  
nVi[  
WARNING: Boundary constraints on compensators will be ignored. V>b\[(=s  
sD=n95`v  
Criterion           : Geometric MTF average S&T at 30.0000 cycles per mm cZ|\.0-  
Mode                : Sensitivities a]MX)?  
Sampling            : 2  Y*14v~\'  
Nominal Criterion   : 0.54403234 O<,\^[x  
Test Wavelength     : 0.6328 \ioH\9  
c`o7d)_Ke  
QDhOhGK  
Fields: XY Symmetric Angle in degrees #*KNPh  
#      X-Field      Y-Field       Weight    VDX    VDY    VCX    VCY 8p:j&F  
1   0.000E+000   0.000E+000   1.000E+000  0.000  0.000  0.000  0.000 @w?P7P<O`  
@0F3$  
Sensitivity Analysis: s#WAR]x0x  
'L8' '(eZ^  
                 |----------------- Minimum ----------------| |----------------- Maximum ----------------| eN^qG 42  
Type                      Value      Criterion        Change          Value      Criterion        Change 4 XAQVq5  
Fringe tolerance on surface 1 9_ d pR.  
TFRN   1            -1.00000000     0.54257256    -0.00145977     1.00000000     0.54548607     0.00145374 k<" oiCE  
Change in Focus                :      -0.000000                            0.000000 K|Di1)7=/  
Fringe tolerance on surface 2 sPR1?:0:  
TFRN   2            -1.00000000     0.54177471    -0.00225762     1.00000000     0.54627463     0.00224230 /@,j232  
Change in Focus                :       0.000000                            0.000000 !s&NT @ S  
Fringe tolerance on surface 3 urjjw.wZ  
TFRN   3            -1.00000000     0.54779866     0.00376632     1.00000000     0.54022572    -0.00380662 W`u[h0\c  
Change in Focus                :      -0.000000                            0.000000 apu4DAy&8  
Thickness tolerance on surface 1 +w+} b^4  
TTHI   1   3        -0.20000000     0.54321462    -0.00081772     0.20000000     0.54484759     0.00081525 QC9eUYe  
Change in Focus                :       0.000000                            0.000000 i~{Ufi  
Thickness tolerance on surface 2 ,d{"m)r<  
TTHI   2   3        -0.20000000     0.54478712     0.00075478     0.20000000     0.54327558    -0.00075675 [_Qa9e  
Change in Focus                :       0.000000                           -0.000000 6e[VgN-s  
Decenter X tolerance on surfaces 1 through 3 egq67S  
TEDX   1   3        -0.20000000     0.54401464   -1.7700E-005     0.20000000     0.54401464   -1.7700E-005 HxIIO[h  
Change in Focus                :       0.000000                            0.000000 E6pMT^{K  
Decenter Y tolerance on surfaces 1 through 3 2u5|8  
TEDY   1   3        -0.20000000     0.54401464   -1.7700E-005     0.20000000     0.54401464   -1.7700E-005 MpF$xzh  
Change in Focus                :       0.000000                            0.000000 TZY3tUx0|G  
Tilt X tolerance on surfaces 1 through 3 (degrees) }#n;C{z2e  
TETX   1   3        -0.20000000     0.54897548     0.00494314     0.20000000     0.54897548     0.00494314 }Nf%n@  
Change in Focus                :       0.000000                            0.000000 =fO5cA6Z  
Tilt Y tolerance on surfaces 1 through 3 (degrees) 70eb]\%  
TETY   1   3        -0.20000000     0.54897548     0.00494314     0.20000000     0.54897548     0.00494314 SN1}xR$  
Change in Focus                :       0.000000                            0.000000 1q,{0s_kp  
Decenter X tolerance on surface 1 /N&CaH\;^$  
TSDX   1            -0.20000000     0.53999563    -0.00403671     0.20000000     0.53999563    -0.00403671 3U7 *>H  
Change in Focus                :       0.000000                            0.000000 yge,8i)c  
Decenter Y tolerance on surface 1 !0vG|C ;'  
TSDY   1            -0.20000000     0.53999563    -0.00403671     0.20000000     0.53999563    -0.00403671 ;,?KI$K  
Change in Focus                :       0.000000                            0.000000 b)e *$)  
Tilt X tolerance on surface (degrees) 1 +Zaj,oEE  
TSTX   1            -0.20000000     0.42678383    -0.11724851     0.20000000     0.42678383    -0.11724851 Y\$ySvZ0  
Change in Focus                :       0.000000                            0.000000 "-vW,7y  
Tilt Y tolerance on surface (degrees) 1 61)-cVC  
TSTY   1            -0.20000000     0.42678383    -0.11724851     0.20000000     0.42678383    -0.11724851 hMykf4  
Change in Focus                :       0.000000                            0.000000 ''0fF_P  
Decenter X tolerance on surface 2 V;,{}  
TSDX   2            -0.20000000     0.51705427    -0.02697807     0.20000000     0.51705427    -0.02697807 =*r]) Vg^  
Change in Focus                :       0.000000                            0.000000 RsY3V=u  
Decenter Y tolerance on surface 2 }x07^4$j  
TSDY   2            -0.20000000     0.51705427    -0.02697807     0.20000000     0.51705427    -0.02697807 {M^3m5.^  
Change in Focus                :       0.000000                            0.000000 `Ch9~*p  
Tilt X tolerance on surface (degrees) 2 2AO~HxF  
TSTX   2            -0.20000000     0.35349910    -0.19053324     0.20000000     0.35349910    -0.19053324 Vnr[}<L  
Change in Focus                :       0.000000                            0.000000 }M H0L#Tu  
Tilt Y tolerance on surface (degrees) 2 @ CZ T  
TSTY   2            -0.20000000     0.35349910    -0.19053324     0.20000000     0.35349910    -0.19053324 $ >u*} X9  
Change in Focus                :       0.000000                            0.000000 [YUv7|\  
Decenter X tolerance on surface 3 p IU&^yX>  
TSDX   3            -0.20000000     0.53419039    -0.00984195     0.20000000     0.53419039    -0.00984195 U qFv}VsnF  
Change in Focus                :       0.000000                            0.000000 H?)w!QX  
Decenter Y tolerance on surface 3 br":y>=,  
TSDY   3            -0.20000000     0.53419039    -0.00984195     0.20000000     0.53419039    -0.00984195 Ljx(\Cm  
Change in Focus                :       0.000000                            0.000000 )~HUo9K9  
Tilt X tolerance on surface (degrees) 3 LQngK7>  
TSTX   3            -0.20000000     0.42861670    -0.11541563     0.20000000     0.42861670    -0.11541563 $D|e>U  
Change in Focus                :       0.000000                            0.000000 QT>`^/]d  
Tilt Y tolerance on surface (degrees) 3 `CgaS#  
TSTY   3            -0.20000000     0.42861670    -0.11541563     0.20000000     0.42861670    -0.11541563 'gTbA?+@5  
Change in Focus                :       0.000000                            0.000000 f;xkT  
Irregularity of surface 1 in fringes ;3B1_vo9  
TIRR   1            -0.20000000     0.50973587    -0.03429647     0.20000000     0.57333868     0.02930634 b-{=s +:  
Change in Focus                :       0.000000                            0.000000 k6sI L3QJ0  
Irregularity of surface 2 in fringes +ayos[<0#  
TIRR   2            -0.20000000     0.53400904    -0.01002330     0.20000000     0.55360281     0.00957047 @AIaC-,~]  
Change in Focus                :       0.000000                            0.000000 c0;t4( &8  
Irregularity of surface 3 in fringes (?(zH3  
TIRR   3            -0.20000000     0.58078982     0.03675748     0.20000000     0.49904394    -0.04498840 g!+| I  
Change in Focus                :       0.000000                            0.000000 `m!j$,c.  
Index tolerance on surface 1 2M68CE  
TIND   1            -0.00100000     0.52606778    -0.01796456     0.00100000     0.56121811     0.01718578 ^`)) C;  
Change in Focus                :       0.000000                            0.000000 {:]9Q Tq  
Index tolerance on surface 2 q gL aa  
TIND   2            -0.00100000     0.55639086     0.01235852     0.00100000     0.53126361    -0.01276872 [`c^ 4 E  
Change in Focus                :       0.000000                           -0.000000 Ai gS!-   
I~Zh@d%  
Worst offenders: 5 ({t4dm  
Type                      Value      Criterion        Change 5`gQ~   
TSTY   2            -0.20000000     0.35349910    -0.19053324 .xH5fMj,"  
TSTY   2             0.20000000     0.35349910    -0.19053324 v,4pp@8rv  
TSTX   2            -0.20000000     0.35349910    -0.19053324 RWg No #<  
TSTX   2             0.20000000     0.35349910    -0.19053324 EioB%f3  
TSTY   1            -0.20000000     0.42678383    -0.11724851 }5}.lJ:  
TSTY   1             0.20000000     0.42678383    -0.11724851 8\5 T3AF  
TSTX   1            -0.20000000     0.42678383    -0.11724851 b#hDHSdZ,  
TSTX   1             0.20000000     0.42678383    -0.11724851 fi$-;Gz  
TSTY   3            -0.20000000     0.42861670    -0.11541563 7lBAxqr2  
TSTY   3             0.20000000     0.42861670    -0.11541563 1M 781  
79xx2  
Estimated Performance Changes based upon Root-Sum-Square method: p|&Yku=  
Nominal MTF                 :     0.54403234 >V*mr{/1  
Estimated change            :    -0.36299231 N =QfP  
Estimated MTF               :     0.18104003 t_qNq{  
5Drq9B9;  
Compensator Statistics: A#95&kJpy  
Change in back focus: 8_ tK4PwP  
Minimum            :        -0.000000 H P3lz,d  
Maximum            :         0.000000 3T!lA  
Mean               :        -0.000000 '-"/ =j&d[  
Standard Deviation :         0.000000 I$0)Px%z  
UmclTGn  
Monte Carlo Analysis: Nd cg/d  
Number of trials: 20 h_T7% #0  
8W#heW\-]  
Initial Statistics: Normal Distribution :kf`?u  
Wu_kx2h  
  Trial       Criterion        Change x*nSHb  
      1     0.42804416    -0.11598818 OC<5E121>Y  
Change in Focus                :      -0.400171 %^>ju;i^O  
      2     0.54384387    -0.00018847 FWHNj.r  
Change in Focus                :       1.018470 NF0%}II&xK  
      3     0.44510003    -0.09893230 @Q/-s9b  
Change in Focus                :      -0.601922 (C@~3!AVa  
      4     0.18154684    -0.36248550 .On|uC)!  
Change in Focus                :       0.920681 nC}6B).el  
      5     0.28665820    -0.25737414 x`dHJq`_g  
Change in Focus                :       1.253875 hijgF@  
      6     0.21263372    -0.33139862 [.S#rGYk  
Change in Focus                :      -0.903878 qh2ON>e;  
      7     0.40051424    -0.14351809 PX n;C/  
Change in Focus                :      -1.354815 K/3)g9Z&io  
      8     0.48754161    -0.05649072 E7Y`|nT  
Change in Focus                :       0.215922 s+EAB{w$  
      9     0.40357468    -0.14045766 !/3B3cG  
Change in Focus                :       0.281783 KFvQ  
     10     0.26315315    -0.28087919 HOE_S!N  
Change in Focus                :      -1.048393 PUBWZ^63  
     11     0.26120585    -0.28282649 'toa@5  
Change in Focus                :       1.017611 y?a Acn$  
     12     0.24033815    -0.30369419 /U"CO8Da  
Change in Focus                :      -0.109292 NX/;+{  
     13     0.37164046    -0.17239188 '=G|Sq^aO  
Change in Focus                :      -0.692430 WeQk<y  
     14     0.48597489    -0.05805744 R%qGPO5Z\c  
Change in Focus                :      -0.662040 q&/Yg,p\  
     15     0.21462327    -0.32940907 \7l-@6 '7  
Change in Focus                :       1.611296 qLT>Mz)$ %  
     16     0.43378226    -0.11025008 zOqn<Y@  
Change in Focus                :      -0.640081 KOp162X>r  
     17     0.39321881    -0.15081353 D[mSmpjE6&  
Change in Focus                :       0.914906 weE/TW\e  
     18     0.20692530    -0.33710703 k25WucQ  
Change in Focus                :       0.801607 OZTPOz.  
     19     0.51374068    -0.03029165 nZ@&2YPlem  
Change in Focus                :       0.947293 7"w2$*4'0  
     20     0.38013374    -0.16389860 %_{tzXim  
Change in Focus                :       0.667010 `}l JH i  
2#<xAR  
Number of traceable Monte Carlo files generated: 20 L}}y'^(  
2cqI[t@0  
Nominal     0.54403234 ,Td!|~I|j6  
Best        0.54384387    Trial     2 Ju3*lk/j-  
Worst       0.18154684    Trial     4 PG_0\'X)/w  
Mean        0.35770970 I{lT>go  
Std Dev     0.11156454 2;^y4ssg  
B]Y}Hu  
T:IW%?M  
Compensator Statistics: m"fNK$_d  
Change in back focus: P~G1EK|4  
Minimum            :        -1.354815 f"9q^  
Maximum            :         1.611296 &Ibu>di4[  
Mean               :         0.161872 E 2"q3_,,  
Standard Deviation :         0.869664 )Jk0v_ X  
`xywho%/Y  
90% >       0.20977951               IZ =Mlu  
80% >       0.22748071               &p}$J )q  
50% >       0.38667627               GW$.lo1|)  
20% >       0.46553746               H~+l7OhV  
10% >       0.50064115                =9z[[dQ|L  
<%Ostqj  
End of Run. g"?Y+j  
s_> f5/i2  
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 \uXcLhXN  
[attachment=34429] Wt=|  
g q}I[N  
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 XvE9 b5}  
)QG<f{wS  
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                 FI<q@HF  
80% >       0.22748071                 g=]u^&  
50% >       0.38667627                 >9f%@uSM$3  
20% >       0.46553746                 K\$J4~EtG  
10% >       0.50064115 OzQ -7|m'J  
S=nP[s  
最后这个数值是MTF值呢，还是MTF的公差？ \N4 y<  
vk?skN@  
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？？？   ]miy/V }5  
i@B[ eta  
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  : :KKa4=5L  
90% >       0.20977951                 +R\vgE68  
80% >       0.22748071                 RC^9HuR&  
50% >       0.38667627                 \(PohwWWo  
20% >       0.46553746                 )' hH^(Yu  
10% >       0.50064115 v @O&t4  
....... LFZ iPu  
"ywh9cp  
e|rg;`AW  
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   e } *0ghKI  
Mode                : Sensitivities -3&G"hfK  
Sampling            : 2 m rJQ#  
Nominal Criterion   : 0.54403234 >?]_<:  
Test Wavelength     : 0.6328 z*a8sr  
9~0^PzTA  
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？ KZbR3mi,  
/R LI,.%  
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 #g5^SR|qE  
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   qd!#t]  
Mode                : Sensitivities 6U,fz#<,}  
Sam .. (2011-06-23 09:38)  ); 6,H.v  
cCxi{a1uo  
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 aqfL0Rg+`  
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