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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 $Jf9;.  
V/bH^@,sA  
[attachment=34427] C1QWU5c v  
og-]tEWA1  
然后添加了默认公差分析，基本没变 J Jy{@[m  
n\= (S9  
[attachment=34428] E1W:hGI  
x!?Z *v@I  
然后运行分析的结果如下： V2<i/6~  
u(hC^T1  
Analysis of Tolerances Taasi` k  
,qy&|4Jz  
File : E:\光学设计资料\zemax练习\f500.ZMX :qnokrGzB  
Title: $l"MXxx5I  
Date : TUE JUN 21 2011 }n95< {  
EUZq$@uWL  
Units are Millimeters. AbZ:(+@cP  
All changes are computed using linear differences. *Sb2w*c>  
-eL'KO5'  
Paraxial Focus compensation only. *<k&#D"m  
vYzVY\   
WARNING: Solves should be removed prior to tolerancing. ~4^p}{  
~:Ixmqi}R  
Mnemonics:  _8S4Q!  
TFRN: Tolerance on curvature in fringes. sR! +d:LJ4  
TTHI: Tolerance on thickness. .. UoyBV  
TSDX: Tolerance on surface decentering in x. 1;`Fe":;vC  
TSDY: Tolerance on surface decentering in y. 0n5!B..m}  
TSTX: Tolerance on surface tilt in x (degrees). ,'_( DJX  
TSTY: Tolerance on surface tilt in y (degrees). P;c0L;/  
TIRR: Tolerance on irregularity (fringes). 9K$]h2  
TIND: Tolerance on Nd index of refraction. qUg9$oh{LI  
TEDX: Tolerance on element decentering in x. ?cxr%`E  
TEDY: Tolerance on element decentering in y. "Q?_ EEn  
TETX: Tolerance on element tilt in x (degrees). YkI9d&ib+  
TETY: Tolerance on element tilt in y (degrees). 0etwz3NuW  
b[0S=e G  
WARNING: RAY AIMING IS OFF. Very loose tolerances may not be computed accurately. +!xu{2!  
^$}/|d(  
WARNING: Boundary constraints on compensators will be ignored. @T/qd>T o  
u GIr&`S  
Criterion           : Geometric MTF average S&T at 30.0000 cycles per mm SS0_P jKz  
Mode                : Sensitivities a7 =YG6[  
Sampling            : 2 :ln/`_  
Nominal Criterion   : 0.54403234 D&f!( n  
Test Wavelength     : 0.6328 952V@.Zp  
|Q6h /"2  
22'vm~2E  
Fields: XY Symmetric Angle in degrees HSC6;~U  
#      X-Field      Y-Field       Weight    VDX    VDY    VCX    VCY <b'1#Pd>0  
1   0.000E+000   0.000E+000   1.000E+000  0.000  0.000  0.000  0.000 w_!%'9m>  
lfRH`u  
Sensitivity Analysis: W W35&mI)k  
[!Ao,rt?Vg  
                 |----------------- Minimum ----------------| |----------------- Maximum ----------------| FXxN>\76.  
Type                      Value      Criterion        Change          Value      Criterion        Change MU*It"@}2  
Fringe tolerance on surface 1 wE8]'o  
TFRN   1            -1.00000000     0.54257256    -0.00145977     1.00000000     0.54548607     0.00145374 b( 1 :w"wD  
Change in Focus                :      -0.000000                            0.000000 ^} tuP  
Fringe tolerance on surface 2 _C5nApb  
TFRN   2            -1.00000000     0.54177471    -0.00225762     1.00000000     0.54627463     0.00224230 ]y}Zi/zh  
Change in Focus                :       0.000000                            0.000000 5DUi4 Cbgy  
Fringe tolerance on surface 3 ^t7_3%%w  
TFRN   3            -1.00000000     0.54779866     0.00376632     1.00000000     0.54022572    -0.00380662 C,(j$Id  
Change in Focus                :      -0.000000                            0.000000 \:h0w;34O  
Thickness tolerance on surface 1 1B(G]o_>!  
TTHI   1   3        -0.20000000     0.54321462    -0.00081772     0.20000000     0.54484759     0.00081525 `LqnEutzc  
Change in Focus                :       0.000000                            0.000000 DgVyy&7>  
Thickness tolerance on surface 2 d;<.;Od$`  
TTHI   2   3        -0.20000000     0.54478712     0.00075478     0.20000000     0.54327558    -0.00075675 ]M uF9={  
Change in Focus                :       0.000000                           -0.000000 VYHOk3  
Decenter X tolerance on surfaces 1 through 3 |K6nOX!i  
TEDX   1   3        -0.20000000     0.54401464   -1.7700E-005     0.20000000     0.54401464   -1.7700E-005 k~& o  
Change in Focus                :       0.000000                            0.000000 $@68=  
Decenter Y tolerance on surfaces 1 through 3 ": nI_~q  
TEDY   1   3        -0.20000000     0.54401464   -1.7700E-005     0.20000000     0.54401464   -1.7700E-005 .a5X*M]  
Change in Focus                :       0.000000                            0.000000 !eV^Ah>PZ  
Tilt X tolerance on surfaces 1 through 3 (degrees) @kS|Jz$iY  
TETX   1   3        -0.20000000     0.54897548     0.00494314     0.20000000     0.54897548     0.00494314 >=bt   
Change in Focus                :       0.000000                            0.000000 a$A2IkD  
Tilt Y tolerance on surfaces 1 through 3 (degrees) C"(_mW{@  
TETY   1   3        -0.20000000     0.54897548     0.00494314     0.20000000     0.54897548     0.00494314 EkDws `@  
Change in Focus                :       0.000000                            0.000000 IcRM4Ib))Q  
Decenter X tolerance on surface 1 dP?nP(l  
TSDX   1            -0.20000000     0.53999563    -0.00403671     0.20000000     0.53999563    -0.00403671 PKl]Geg P  
Change in Focus                :       0.000000                            0.000000 RzMA\r;#  
Decenter Y tolerance on surface 1 ' l|41wxk  
TSDY   1            -0.20000000     0.53999563    -0.00403671     0.20000000     0.53999563    -0.00403671 H^ESA s6  
Change in Focus                :       0.000000                            0.000000 N|bPhssFw  
Tilt X tolerance on surface (degrees) 1 ?0? x+  
TSTX   1            -0.20000000     0.42678383    -0.11724851     0.20000000     0.42678383    -0.11724851 4 `j,&=  
Change in Focus                :       0.000000                            0.000000 ,G/\@x%  
Tilt Y tolerance on surface (degrees) 1 od;Bb  
TSTY   1            -0.20000000     0.42678383    -0.11724851     0.20000000     0.42678383    -0.11724851 =PI^X\if88  
Change in Focus                :       0.000000                            0.000000 U+(Z#b(Q  
Decenter X tolerance on surface 2 lpIteZw:  
TSDX   2            -0.20000000     0.51705427    -0.02697807     0.20000000     0.51705427    -0.02697807 PWADbu{+  
Change in Focus                :       0.000000                            0.000000 x8\E~6`,  
Decenter Y tolerance on surface 2 Ry3+/]  
TSDY   2            -0.20000000     0.51705427    -0.02697807     0.20000000     0.51705427    -0.02697807 em f0sL  
Change in Focus                :       0.000000                            0.000000 rhlW  
Tilt X tolerance on surface (degrees) 2 Oex{:dO "F  
TSTX   2            -0.20000000     0.35349910    -0.19053324     0.20000000     0.35349910    -0.19053324 tI/mE[W  
Change in Focus                :       0.000000                            0.000000 p.6$w:eV  
Tilt Y tolerance on surface (degrees) 2 2hjre3"?  
TSTY   2            -0.20000000     0.35349910    -0.19053324     0.20000000     0.35349910    -0.19053324 Q `J,dzY  
Change in Focus                :       0.000000                            0.000000 0"wbcAh)  
Decenter X tolerance on surface 3 j1'xp`jgv  
TSDX   3            -0.20000000     0.53419039    -0.00984195     0.20000000     0.53419039    -0.00984195 D#vn {^c8O  
Change in Focus                :       0.000000                            0.000000 ]# tGT0   
Decenter Y tolerance on surface 3 Pn'QOVy  
TSDY   3            -0.20000000     0.53419039    -0.00984195     0.20000000     0.53419039    -0.00984195 rCnV5Yb0O  
Change in Focus                :       0.000000                            0.000000 0 .6X{kO  
Tilt X tolerance on surface (degrees) 3 <>&e/  
TSTX   3            -0.20000000     0.42861670    -0.11541563     0.20000000     0.42861670    -0.11541563 pq/ FLYiv  
Change in Focus                :       0.000000                            0.000000 bc0)'a\  
Tilt Y tolerance on surface (degrees) 3 g:~?U*f-  
TSTY   3            -0.20000000     0.42861670    -0.11541563     0.20000000     0.42861670    -0.11541563 a<a&6 3  
Change in Focus                :       0.000000                            0.000000 <3],C)Zwc  
Irregularity of surface 1 in fringes ~PU1vbv9T  
TIRR   1            -0.20000000     0.50973587    -0.03429647     0.20000000     0.57333868     0.02930634 9H !B)  
Change in Focus                :       0.000000                            0.000000 D@sx`H(  
Irregularity of surface 2 in fringes g%fJyk'  
TIRR   2            -0.20000000     0.53400904    -0.01002330     0.20000000     0.55360281     0.00957047 LX(iuf+l  
Change in Focus                :       0.000000                            0.000000 >[E|p6jgT  
Irregularity of surface 3 in fringes ^2Fs)19R  
TIRR   3            -0.20000000     0.58078982     0.03675748     0.20000000     0.49904394    -0.04498840 fY,@2VxyfA  
Change in Focus                :       0.000000                            0.000000 a@S4IoBg%  
Index tolerance on surface 1 rlUdAa3  
TIND   1            -0.00100000     0.52606778    -0.01796456     0.00100000     0.56121811     0.01718578 }jyS\drJ  
Change in Focus                :       0.000000                            0.000000 Z CQt1;  
Index tolerance on surface 2 {'=Nb 5F  
TIND   2            -0.00100000     0.55639086     0.01235852     0.00100000     0.53126361    -0.01276872 5b{yA~ty  
Change in Focus                :       0.000000                           -0.000000 Nak'g/uP>  
TYJnQ2m  
Worst offenders: ]\os`At  
Type                      Value      Criterion        Change _/z)&0DO  
TSTY   2            -0.20000000     0.35349910    -0.19053324 28UL  
TSTY   2             0.20000000     0.35349910    -0.19053324 K#6`LL m  
TSTX   2            -0.20000000     0.35349910    -0.19053324 eN2k8=  
TSTX   2             0.20000000     0.35349910    -0.19053324 . ;ea]_Z  
TSTY   1            -0.20000000     0.42678383    -0.11724851 #1qVFU  
TSTY   1             0.20000000     0.42678383    -0.11724851 Z imMjZ%4  
TSTX   1            -0.20000000     0.42678383    -0.11724851 zoJkDr=jn  
TSTX   1             0.20000000     0.42678383    -0.11724851 $E9daUt8"J  
TSTY   3            -0.20000000     0.42861670    -0.11541563 .' N O~  
TSTY   3             0.20000000     0.42861670    -0.11541563 yZ(Nv $[5  
K^cWj_a"  
Estimated Performance Changes based upon Root-Sum-Square method: ]RrP !|^  
Nominal MTF                 :     0.54403234 = "hY{RUa  
Estimated change            :    -0.36299231 c[d'1=Qiy  
Estimated MTF               :     0.18104003 zQ6 -2 A  
g%q?2Nv  
Compensator Statistics: Dxa)7dA|  
Change in back focus: p`l[cVQ<  
Minimum            :        -0.000000 {+UNjKQC  
Maximum            :         0.000000 GT\s!D;<  
Mean               :        -0.000000 neY=:9  
Standard Deviation :         0.000000 3NxaOO`  
ga1gd~a  
Monte Carlo Analysis: ao" ;5 m  
Number of trials: 20 t1{%FJ0F  
m)]fJ_  
Initial Statistics: Normal Distribution 4ysdna\+  
(h>X:!  
  Trial       Criterion        Change qxcBj  
      1     0.42804416    -0.11598818 -x%`Wv@L  
Change in Focus                :      -0.400171 gjN!_^ _  
      2     0.54384387    -0.00018847 I&NpN~AU  
Change in Focus                :       1.018470 Q3O .<9S  
      3     0.44510003    -0.09893230 _Il9s#NA%  
Change in Focus                :      -0.601922 a4CNPf<$  
      4     0.18154684    -0.36248550 v7OV;e a$  
Change in Focus                :       0.920681 u+gXBU  
      5     0.28665820    -0.25737414 7 KdM>1!  
Change in Focus                :       1.253875 w{O3P"N2  
      6     0.21263372    -0.33139862 F)iG D~  
Change in Focus                :      -0.903878 n]fbV/ x  
      7     0.40051424    -0.14351809 ._8cJf.ae  
Change in Focus                :      -1.354815 "oXAIfU#T  
      8     0.48754161    -0.05649072 898wZ{9  
Change in Focus                :       0.215922 ~q|e];tA  
      9     0.40357468    -0.14045766 PXu<4VF  
Change in Focus                :       0.281783 = hX-jP  
     10     0.26315315    -0.28087919 <J }9.k  
Change in Focus                :      -1.048393 _xL&sy09t  
     11     0.26120585    -0.28282649 0#{]!>R  
Change in Focus                :       1.017611 %+B-Z/1}  
     12     0.24033815    -0.30369419 jMWwu+w  
Change in Focus                :      -0.109292 Lz{T8yvZ  
     13     0.37164046    -0.17239188 L{,7(C=  
Change in Focus                :      -0.692430 +Y]*>afG  
     14     0.48597489    -0.05805744 @wgGnb)  
Change in Focus                :      -0.662040 -&D6w9w  
     15     0.21462327    -0.32940907 )hJjVitG  
Change in Focus                :       1.611296 AbI*/ |sY  
     16     0.43378226    -0.11025008 @%G"i:HZ&  
Change in Focus                :      -0.640081 I5OH=,y`  
     17     0.39321881    -0.15081353 &Wz:-G7<n  
Change in Focus                :       0.914906 -t'oW*kdL  
     18     0.20692530    -0.33710703 5N+(Gv[`"  
Change in Focus                :       0.801607 .LcE^y[V  
     19     0.51374068    -0.03029165 j?hyN@ns  
Change in Focus                :       0.947293 #&KE_ n  
     20     0.38013374    -0.16389860 -?`l<y(  
Change in Focus                :       0.667010 WvzvGT=  
kR?n%`&k  
Number of traceable Monte Carlo files generated: 20 <G?85*Nv_  
J$*["y`+  
Nominal     0.54403234 (MiOrzT  
Best        0.54384387    Trial     2 * t9qH  
Worst       0.18154684    Trial     4 y/VmjsN}  
Mean        0.35770970 ?Cfp=85ea!  
Std Dev     0.11156454 v+o3r]Y6  
NfN6KDd]2L  
9sU,.T  
Compensator Statistics: _?LI0iIFx  
Change in back focus: 2czL 1Ci  
Minimum            :        -1.354815 *]?YvY  
Maximum            :         1.611296 xi=uXxl  
Mean               :         0.161872 pR>QIZq<gT  
Standard Deviation :         0.869664 :S6 <v0`Z  
iGNKf|8{  
90% >       0.20977951               tzJtd  
80% >       0.22748071               ^q r[?ky]&  
50% >       0.38667627               wk/U"@lq  
20% >       0.46553746               Mn;CG'FA  
10% >       0.50064115                N Z9,9  
\9Zfu4WR  
End of Run. (7!(e  ,  
,1h(k<-  
这就有了些疑问，为什么我选择的补偿器是近轴焦点，而分析结果近轴焦点都不变化？？应该是变得。另外最后的蒙特卡洛分析，只有10%的大于0.5（我用的是MTF作为评价方式），可是我设计的MTF如图 3_-m>J**  
[attachment=34429] f\w4F'^tj  
kIo?<=F8T  
是大于0.6左右的，难道我按照这个默认的公差来加工的话，只有10%的才可能大于0.5？那太低了啊，请问这该怎么进行进一步处理。或者之前哪有问题 :PkSX*E[q  
[/]3:|  
不吝赐教
sansummer 2011-06-21 15:00
我又试了试，原来是得根据上面的结果不断修改公差，放松或者变紧，然后在做公差分析，不断提高蒙特卡罗的结果。但是比如就拿我这个来说，理想是达到30lp处>0.6，那么实际做蒙特卡罗公差分析时，百分之多少以上的MTF是合格的呢？
sansummer 2011-06-22 08:56
90% >       0.20977951                 q\Z1-sl~s  
80% >       0.22748071                 wu'60po  
50% >       0.38667627                 NYRNop( N#  
20% >       0.46553746                 %)]RM/e8  
10% >       0.50064115 2V 'Tt3  
[r'M_foga*  
最后这个数值是MTF值呢，还是MTF的公差？ ,oe4*b}O=.  
#k, kpL<a  
也就是说，这到底是有90%的产品MTF大于0.20977951还是90%的产品的MTF变化量大于0.20977951？？？   9!h+LGs(,  
B[h9epU]K  
怎么没人啊，大家讨论讨论吗
sansummer 2011-06-23 08:21
没有人啊？？？
天地大同 2011-06-23 09:35
引用第2楼sansummer于2011-06-22 08:56发表的  : \wd~ Y  
90% >       0.20977951                 A`KTm(  
80% >       0.22748071                 WJ@,f%=<~  
50% >       0.38667627                 +qdK]RR}  
20% >       0.46553746                 .B@;ch,  
10% >       0.50064115 H>B:jJf  
....... dNR4h  
V2*b f`/V  
8LL);"$  
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   4 ClW*l  
Mode                : Sensitivities 3^Ex_jeB  
Sampling            : 2 nV<YwqK  
Nominal Criterion   : 0.54403234 =3@^TW(j  
Test Wavelength     : 0.6328 6^ ~& sA  
#M:W?&.  
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？ :ZUy(8%Wl  
2$jY_{B+x  
这个评价标准和我理想的设计结果的0.6有什么联系吗，另外这个 0.54403234  是这么来的？
天地大同 2011-06-24 11:21
你试试把原来的系统波长改成632.8nm，看看Geometric MTF    30 per mm 的mtf值是不是0.54403234
sansummer 2011-06-24 14:30
啊...这倒也是。换了波长的确可能有所变化。另外还有就是如果现在百分比太低，我是否应该考虑把最敏感的公差再紧一些，就会好了？
天地大同 2011-06-28 14:14
恩，多多尝试
sansummer 2011-06-28 15:04
最后一个问题，你的头像怎么换的？哈哈
天地大同 2011-06-28 16:09
是啊  本来没有的  最近刚弄的
sansummer 2011-06-28 18:02
多谢多谢，我也换头像啦
guapiqlh 2011-12-29 09:54
自己看看书不是一样可以解决吗？
雷伽多 2012-02-27 15:15
楼主分享一下学习ZEMAX公差分析的心得吧。我也刚刚学习这块，很是晕，不知怎么入手。看了一些相关资料，总说蒙特卡洛分析可以模拟生产装配的实际情况，我就是不知道他是如何做到的
zhujiehui 2012-02-27 16:32
学习一下啊
雷伽多 2012-03-07 17:37
额。。。请问你把敏感的公差调紧了后，百分比数有所变化吗？我也遇到同样的问题。。。
nanuto 2012-03-09 18:38
好样的
licc 2012-08-04 10:38
好高深
wmh1985 2012-08-06 21:23
楼主 太强大了  能不能讲的 系统一些了 :kgwKuhL  
毛毛虫07 2013-06-21 11:12
请问，公差设置的阿贝偏差应该设置成多少呢？
毛毛虫07 2013-06-21 11:16
天地大同:Criterion           : Geometric MTF average S&T at 30.0000 cycles per mm   n*hHqZl  
Mode                : Sensitivities Qgf\gTF$r+  
Sam .. (2011-06-23 09:38)  9Iy>oV  
d 6j'[  
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 35|F?Jx.r  
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