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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 $@d`Kz;  
rZ<0ks  
[attachment=34427] RL/~E xYC  
l!e8=QlJ  
然后添加了默认公差分析，基本没变 `84pql,  
4S|! iOY  
[attachment=34428] *0M#{HQ  
fVv#|   
然后运行分析的结果如下： q]q(zUtU  
hH:7  
Analysis of Tolerances P;0tI;  
2pFOC;tl  
File : E:\光学设计资料\zemax练习\f500.ZMX  SzkF-yRd  
Title: Yf Udpa0  
Date : TUE JUN 21 2011 LB%_FT5  
hk4f)z  
Units are Millimeters. Z y@35;r  
All changes are computed using linear differences. 5} |O  
{;^boo q  
Paraxial Focus compensation only. k9UmTvX  
2#&9qGR  
WARNING: Solves should be removed prior to tolerancing. $+Ke$fq.>  
(WiA  
Mnemonics: "{;]T  
TFRN: Tolerance on curvature in fringes. B#o(21s  
TTHI: Tolerance on thickness. 5P{dey!  
TSDX: Tolerance on surface decentering in x. t+Mr1e  
TSDY: Tolerance on surface decentering in y. 3P Twpq1  
TSTX: Tolerance on surface tilt in x (degrees). f|Kd{ $VO  
TSTY: Tolerance on surface tilt in y (degrees). DrbjqQL+.  
TIRR: Tolerance on irregularity (fringes). oQ~Q?o]Ri  
TIND: Tolerance on Nd index of refraction. k\_>/)g  
TEDX: Tolerance on element decentering in x. G;615p1  
TEDY: Tolerance on element decentering in y. 6"WR}S0o  
TETX: Tolerance on element tilt in x (degrees). C-]H+p  
TETY: Tolerance on element tilt in y (degrees). Gdnk1_D>  
'GQ1;9A57  
WARNING: RAY AIMING IS OFF. Very loose tolerances may not be computed accurately. [,Ts;Hy6Q  
R0+v5E  
WARNING: Boundary constraints on compensators will be ignored. eJ)Bs20Q  
Vi`+2%4  
Criterion           : Geometric MTF average S&T at 30.0000 cycles per mm !JUXq  
Mode                : Sensitivities &w:"e'FG`  
Sampling            : 2 |DfYH~@(  
Nominal Criterion   : 0.54403234 K2nq2Gbn  
Test Wavelength     : 0.6328 wRf_IBhCd  
x(3E#7>1  
x*5' 6  
Fields: XY Symmetric Angle in degrees i:OD)l  
#      X-Field      Y-Field       Weight    VDX    VDY    VCX    VCY l3n* b6  
1   0.000E+000   0.000E+000   1.000E+000  0.000  0.000  0.000  0.000 ~$#DB@b  
4nkH0dJQ  
Sensitivity Analysis: 7^Uv1ezDR  
a}`4BMi3  
                 |----------------- Minimum ----------------| |----------------- Maximum ----------------| 0 sVCTJ@  
Type                      Value      Criterion        Change          Value      Criterion        Change .{HU1/!  
Fringe tolerance on surface 1 ;3Fgy8 T  
TFRN   1            -1.00000000     0.54257256    -0.00145977     1.00000000     0.54548607     0.00145374 h+zJ"\  
Change in Focus                :      -0.000000                            0.000000 bj(U?$  
Fringe tolerance on surface 2 >!A&@1[M  
TFRN   2            -1.00000000     0.54177471    -0.00225762     1.00000000     0.54627463     0.00224230 EiI3$y3;  
Change in Focus                :       0.000000                            0.000000 BMU~1[r  
Fringe tolerance on surface 3 IkH]W!_+  
TFRN   3            -1.00000000     0.54779866     0.00376632     1.00000000     0.54022572    -0.00380662 kP%'{   
Change in Focus                :      -0.000000                            0.000000 v"O{5LM"  
Thickness tolerance on surface 1 /4 RKA!W  
TTHI   1   3        -0.20000000     0.54321462    -0.00081772     0.20000000     0.54484759     0.00081525 fS-#dJC";`  
Change in Focus                :       0.000000                            0.000000 9g >]m 6  
Thickness tolerance on surface 2 *Au4q<   
TTHI   2   3        -0.20000000     0.54478712     0.00075478     0.20000000     0.54327558    -0.00075675 82Nh;5T r  
Change in Focus                :       0.000000                           -0.000000 f'Wc_ L)  
Decenter X tolerance on surfaces 1 through 3 56u'XMB?  
TEDX   1   3        -0.20000000     0.54401464   -1.7700E-005     0.20000000     0.54401464   -1.7700E-005 ?A(=%c|,g  
Change in Focus                :       0.000000                            0.000000 Mp?Ev.  
Decenter Y tolerance on surfaces 1 through 3 L|S#(0  
TEDY   1   3        -0.20000000     0.54401464   -1.7700E-005     0.20000000     0.54401464   -1.7700E-005 "vH@b_>9|  
Change in Focus                :       0.000000                            0.000000 _.J{U0N  
Tilt X tolerance on surfaces 1 through 3 (degrees) O-wR48Q  
TETX   1   3        -0.20000000     0.54897548     0.00494314     0.20000000     0.54897548     0.00494314 CY)Wuv ^  
Change in Focus                :       0.000000                            0.000000 :~:(49l  
Tilt Y tolerance on surfaces 1 through 3 (degrees) !#3#}R.$Fl  
TETY   1   3        -0.20000000     0.54897548     0.00494314     0.20000000     0.54897548     0.00494314 &xr?yd  
Change in Focus                :       0.000000                            0.000000 &k&tkE  
Decenter X tolerance on surface 1 %&Z!-k(  
TSDX   1            -0.20000000     0.53999563    -0.00403671     0.20000000     0.53999563    -0.00403671 dSsMa3X[n  
Change in Focus                :       0.000000                            0.000000 P~;NwHZ?k  
Decenter Y tolerance on surface 1 vb9G_Pfz  
TSDY   1            -0.20000000     0.53999563    -0.00403671     0.20000000     0.53999563    -0.00403671 #1z}~1-  
Change in Focus                :       0.000000                            0.000000 '68{dyFZL  
Tilt X tolerance on surface (degrees) 1 rv;w`f  
TSTX   1            -0.20000000     0.42678383    -0.11724851     0.20000000     0.42678383    -0.11724851 7\JRHw  
Change in Focus                :       0.000000                            0.000000 Y!i4P#4+q  
Tilt Y tolerance on surface (degrees) 1 ?.|qRzWL  
TSTY   1            -0.20000000     0.42678383    -0.11724851     0.20000000     0.42678383    -0.11724851 p4<&NMG  
Change in Focus                :       0.000000                            0.000000 (8@._  
Decenter X tolerance on surface 2 |w6:mtaS  
TSDX   2            -0.20000000     0.51705427    -0.02697807     0.20000000     0.51705427    -0.02697807 (BMFGyE3  
Change in Focus                :       0.000000                            0.000000 2aW&d=!ZV  
Decenter Y tolerance on surface 2 Eo)Q> AM  
TSDY   2            -0.20000000     0.51705427    -0.02697807     0.20000000     0.51705427    -0.02697807 U;;vNzcn  
Change in Focus                :       0.000000                            0.000000 }UHuFff,  
Tilt X tolerance on surface (degrees) 2 $oq&uL  
TSTX   2            -0.20000000     0.35349910    -0.19053324     0.20000000     0.35349910    -0.19053324 oO$a4|&,  
Change in Focus                :       0.000000                            0.000000 *7nlel  
Tilt Y tolerance on surface (degrees) 2 +_06{7@h  
TSTY   2            -0.20000000     0.35349910    -0.19053324     0.20000000     0.35349910    -0.19053324 *<x EM-  
Change in Focus                :       0.000000                            0.000000 P et0yH  
Decenter X tolerance on surface 3 >LFhu6T  
TSDX   3            -0.20000000     0.53419039    -0.00984195     0.20000000     0.53419039    -0.00984195 TaG'?  
Change in Focus                :       0.000000                            0.000000 3VB{Qj  
Decenter Y tolerance on surface 3 )]n:y M  
TSDY   3            -0.20000000     0.53419039    -0.00984195     0.20000000     0.53419039    -0.00984195 DWHl,w;[z`  
Change in Focus                :       0.000000                            0.000000 6Ei>VcN4a  
Tilt X tolerance on surface (degrees) 3 n_)d4d zl  
TSTX   3            -0.20000000     0.42861670    -0.11541563     0.20000000     0.42861670    -0.11541563 4punJg~1  
Change in Focus                :       0.000000                            0.000000 '2/48j X5  
Tilt Y tolerance on surface (degrees) 3 4ZQX YwfC|  
TSTY   3            -0.20000000     0.42861670    -0.11541563     0.20000000     0.42861670    -0.11541563 j*q]-$2E  
Change in Focus                :       0.000000                            0.000000 #";(&|7  
Irregularity of surface 1 in fringes 87>\wUJ  
TIRR   1            -0.20000000     0.50973587    -0.03429647     0.20000000     0.57333868     0.02930634 lk%rE  
Change in Focus                :       0.000000                            0.000000 F,P,dc  
Irregularity of surface 2 in fringes $vTU|o>|  
TIRR   2            -0.20000000     0.53400904    -0.01002330     0.20000000     0.55360281     0.00957047 `+\ +  
Change in Focus                :       0.000000                            0.000000 +*DXzVC  
Irregularity of surface 3 in fringes c3`X19'%fM  
TIRR   3            -0.20000000     0.58078982     0.03675748     0.20000000     0.49904394    -0.04498840 ?X]7jH<iw;  
Change in Focus                :       0.000000                            0.000000 i=o<\ {iV:  
Index tolerance on surface 1 PLw;9^<  
TIND   1            -0.00100000     0.52606778    -0.01796456     0.00100000     0.56121811     0.01718578 $0AN5 |`g\  
Change in Focus                :       0.000000                            0.000000 9%$4Ux*q  
Index tolerance on surface 2 y%cg  
TIND   2            -0.00100000     0.55639086     0.01235852     0.00100000     0.53126361    -0.01276872 1$q SbQ  
Change in Focus                :       0.000000                           -0.000000 o D*h@yL  
Hp8)-eT  
Worst offenders: zo7Hm]W`  
Type                      Value      Criterion        Change UKZsq5Q  
TSTY   2            -0.20000000     0.35349910    -0.19053324 c9=;:E  
TSTY   2             0.20000000     0.35349910    -0.19053324 e#0R9+"Ba  
TSTX   2            -0.20000000     0.35349910    -0.19053324 %_(e{Mf)  
TSTX   2             0.20000000     0.35349910    -0.19053324 bEMD2ABm  
TSTY   1            -0.20000000     0.42678383    -0.11724851 Ih{(d O;  
TSTY   1             0.20000000     0.42678383    -0.11724851 >(|T]u](q  
TSTX   1            -0.20000000     0.42678383    -0.11724851 }RO Cj,|  
TSTX   1             0.20000000     0.42678383    -0.11724851 u0A.I_  
TSTY   3            -0.20000000     0.42861670    -0.11541563 # yAt `  
TSTY   3             0.20000000     0.42861670    -0.11541563 2Rc#{A  
]pzf{8%  
Estimated Performance Changes based upon Root-Sum-Square method: }<[@)g.h.  
Nominal MTF                 :     0.54403234 2x"&8Bg3  
Estimated change            :    -0.36299231 6*lTur9ni  
Estimated MTF               :     0.18104003 v<ASkkh>  
2LiJ IO8N  
Compensator Statistics: 0%<Fc9#  
Change in back focus: cDYKvrPY  
Minimum            :        -0.000000 >j4;{r+eQw  
Maximum            :         0.000000 q$yTG!q*  
Mean               :        -0.000000 O8w R#(/  
Standard Deviation :         0.000000 & VJ+X|Z  
Ty}'A(U  
Monte Carlo Analysis: [GyW1-p33w  
Number of trials: 20 yS0!#AG  
/3Zo8.  
Initial Statistics: Normal Distribution T[`o$j6  
L09YA  
  Trial       Criterion        Change #e}Q|pF  
      1     0.42804416    -0.11598818 2TXrVaM  
Change in Focus                :      -0.400171 7.,C'^ci  
      2     0.54384387    -0.00018847 H!y1&  
Change in Focus                :       1.018470 *Ew`Fm H  
      3     0.44510003    -0.09893230 ': 87.8$  
Change in Focus                :      -0.601922 \xlelsmB*  
      4     0.18154684    -0.36248550 ]o$aGrZ  
Change in Focus                :       0.920681 bX Q*d_]WT  
      5     0.28665820    -0.25737414 6U Q~Fv`]  
Change in Focus                :       1.253875 }xk85*V  
      6     0.21263372    -0.33139862 b(Zh$86  
Change in Focus                :      -0.903878 6 6(|3DX  
      7     0.40051424    -0.14351809 _D1Uc|  
Change in Focus                :      -1.354815 )\s{\u \  
      8     0.48754161    -0.05649072 x"9`w 42\r  
Change in Focus                :       0.215922 s!:'3[7+  
      9     0.40357468    -0.14045766 T`mG+"O  
Change in Focus                :       0.281783 F0t-b%w,  
     10     0.26315315    -0.28087919 Za_w@o  
Change in Focus                :      -1.048393 iH<:wLY&J  
     11     0.26120585    -0.28282649 1YV ;pEw3w  
Change in Focus                :       1.017611 y-6k<RN  
     12     0.24033815    -0.30369419  O{R)0&  
Change in Focus                :      -0.109292 ^hr^f;N  
     13     0.37164046    -0.17239188 97l<9^$  
Change in Focus                :      -0.692430 "4NcszEN  
     14     0.48597489    -0.05805744 OyH>N/  
Change in Focus                :      -0.662040 eS-akx^@  
     15     0.21462327    -0.32940907 mhVdsa  
Change in Focus                :       1.611296 &OQ37(<_  
     16     0.43378226    -0.11025008 'i+j;.  
Change in Focus                :      -0.640081 a> qB k})  
     17     0.39321881    -0.15081353 JN)@bP  
Change in Focus                :       0.914906 PvF3a `&r  
     18     0.20692530    -0.33710703 ?*cr|G$r[  
Change in Focus                :       0.801607 I!1|);li  
     19     0.51374068    -0.03029165 ]s_,;PGU  
Change in Focus                :       0.947293 2T 3tKX  
     20     0.38013374    -0.16389860 G%ytp=N  
Change in Focus                :       0.667010 S9RH&/^H  
xl2;DFiYt  
Number of traceable Monte Carlo files generated: 20 Oxsx\f_  
\GYrP f$  
Nominal     0.54403234 xKl\:}Ytp  
Best        0.54384387    Trial     2 q>|&u  
Worst       0.18154684    Trial     4 !-rG1VI_S*  
Mean        0.35770970 *Tc lc u  
Std Dev     0.11156454 $0 ]xeD0X  
c(Ws3  
D8X~qt/  
Compensator Statistics: Rtpk_ND!  
Change in back focus: =sZ58xA  
Minimum            :        -1.354815 ,/2&HZd  
Maximum            :         1.611296 |ht:_l 8  
Mean               :         0.161872 v}\4/u  
Standard Deviation :         0.869664 Xna58KF/  
|2ImitN0  
90% >       0.20977951               =T!eyGE  
80% >       0.22748071               | KtI:n4d  
50% >       0.38667627               Yo%ph%e  
20% >       0.46553746               EDAtC  
10% >       0.50064115                8ShIn@|32  
FQTAkkA_!  
End of Run. 1 A%0y)]  
6mV-+CnYC  
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 (vP<}  
[attachment=34429] ?_ 476A  
@cB7tY*Ski  
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 HTz5LAe~b7  
hk+8s\%-  
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                 36e  
80% >       0.22748071                 3_bqDhVI5  
50% >       0.38667627                 "UX/yLc3(  
20% >       0.46553746                 :%_\!FvS  
10% >       0.50064115 fn#qcZv?  
NC%96gfD  
最后这个数值是MTF值呢，还是MTF的公差？ j)ME%17  
UpaF>,kM  
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？？？   ee/3=/H|;  
A^ofs*"Y  
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  : 5vFM0  
90% >       0.20977951                 $PG(>1e  
80% >       0.22748071                 _\=x A6!  
50% >       0.38667627                 %~I&T". iC  
20% >       0.46553746                 egK~w8`W%  
10% >       0.50064115 !Q WNHL  
....... ?q7MbQw  
xax[# Vl4  
SwsJ<Dq^z  
这些数值都是MTF值
天地大同 2011-06-23 09:38
Criterion           : Geometric MTF average S&T at 30.0000 cycles per mm   &?@[bD'T  
Mode                : Sensitivities wmww7  
Sampling            : 2 A_l\ij$Y  
Nominal Criterion   : 0.54403234 veuX />!  
Test Wavelength     : 0.6328 4#{f8  
vh.-9eD  
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？ [O<F`u"a  
@ <3E `j'p  
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 +_ /ys!  
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   (SQGl!Lai0  
Mode                : Sensitivities |EdEV*.ej  
Sam .. (2011-06-23 09:38)  &>+5 8  
<m^a ?q^  
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 ,SIGfd  
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