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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 =>- W!Of  
2Mu3] 2>  
[attachment=34427] w$0*5n>)  
>-j( [%  
然后添加了默认公差分析，基本没变 AHzm9U @  
w :9M6+mM^  
[attachment=34428] ]zz%gZz  
.\+c{  
然后运行分析的结果如下： a/n~#5-  
Jow{7@FG  
Analysis of Tolerances F8xu&Vk0:  
MM*9Q`cB  
File : E:\光学设计资料\zemax练习\f500.ZMX }Xb|Ur43  
Title: w19OOD  
Date : TUE JUN 21 2011 : cPV08i  
E%?> %h  
Units are Millimeters. BKK@_B"  
All changes are computed using linear differences. ~xJ ^YkyH  
_^D-nk?  
Paraxial Focus compensation only. #V.u[:mO  
"iJAM`Hi  
WARNING: Solves should be removed prior to tolerancing. G_}oI|B  
Rl'xEtaN  
Mnemonics: j:$Z-s  
TFRN: Tolerance on curvature in fringes. +hcJ!$J7  
TTHI: Tolerance on thickness. (ZP e{;L.  
TSDX: Tolerance on surface decentering in x. f\z9?Z(~  
TSDY: Tolerance on surface decentering in y. {KSy I#  
TSTX: Tolerance on surface tilt in x (degrees). hyY^$p+  
TSTY: Tolerance on surface tilt in y (degrees). SduUXHk  
TIRR: Tolerance on irregularity (fringes). . |`)k  
TIND: Tolerance on Nd index of refraction. AD >/#Ul  
TEDX: Tolerance on element decentering in x. |M EJ)LE7  
TEDY: Tolerance on element decentering in y. 9t7 e~&R  
TETX: Tolerance on element tilt in x (degrees). !Pu7%nV.  
TETY: Tolerance on element tilt in y (degrees). -|P7e  
X{iidTW`xv  
WARNING: RAY AIMING IS OFF. Very loose tolerances may not be computed accurately. ]UrlFiR  
*-'`Ea  
WARNING: Boundary constraints on compensators will be ignored. ;L,yJ~  
y2PxC. -  
Criterion           : Geometric MTF average S&T at 30.0000 cycles per mm uN0'n}c;1.  
Mode                : Sensitivities .UU)   
Sampling            : 2 W+.?J 60  
Nominal Criterion   : 0.54403234 r#d]"3tH  
Test Wavelength     : 0.6328 <)+;Bg  
;1k_J~Qei  
7o-}86x#  
Fields: XY Symmetric Angle in degrees wKJK!P  
#      X-Field      Y-Field       Weight    VDX    VDY    VCX    VCY v%QC p  
1   0.000E+000   0.000E+000   1.000E+000  0.000  0.000  0.000  0.000 iHWt;]  
:~p_(rE  
Sensitivity Analysis: BT(G9 Pj;  
17 VNw/Y  
                 |----------------- Minimum ----------------| |----------------- Maximum ----------------| s%?<:9  
Type                      Value      Criterion        Change          Value      Criterion        Change +EZr@  
Fringe tolerance on surface 1 0qBXL;sE  
TFRN   1            -1.00000000     0.54257256    -0.00145977     1.00000000     0.54548607     0.00145374 fVZ_*'v  
Change in Focus                :      -0.000000                            0.000000 U}{\qs-zt  
Fringe tolerance on surface 2 Q8DKU  
TFRN   2            -1.00000000     0.54177471    -0.00225762     1.00000000     0.54627463     0.00224230 `U;V-  
Change in Focus                :       0.000000                            0.000000 ^fM=|.?  
Fringe tolerance on surface 3 )' 2vUt`_7  
TFRN   3            -1.00000000     0.54779866     0.00376632     1.00000000     0.54022572    -0.00380662 ?#__#  
Change in Focus                :      -0.000000                            0.000000 }J=zO8OL  
Thickness tolerance on surface 1 7.C]ZcU  
TTHI   1   3        -0.20000000     0.54321462    -0.00081772     0.20000000     0.54484759     0.00081525 5a* Awv}  
Change in Focus                :       0.000000                            0.000000 / `w'X/'VJ  
Thickness tolerance on surface 2 ND5E`Va5R  
TTHI   2   3        -0.20000000     0.54478712     0.00075478     0.20000000     0.54327558    -0.00075675 ) |hHbD^V  
Change in Focus                :       0.000000                           -0.000000 4;w# mzd  
Decenter X tolerance on surfaces 1 through 3 + >v{#A_u  
TEDX   1   3        -0.20000000     0.54401464   -1.7700E-005     0.20000000     0.54401464   -1.7700E-005 2aQ}| `  
Change in Focus                :       0.000000                            0.000000 EKT"pL-EY  
Decenter Y tolerance on surfaces 1 through 3 H/ub=,Ej*  
TEDY   1   3        -0.20000000     0.54401464   -1.7700E-005     0.20000000     0.54401464   -1.7700E-005 *OZ O} i  
Change in Focus                :       0.000000                            0.000000 '`p0T%w  
Tilt X tolerance on surfaces 1 through 3 (degrees) B^1Io9  
TETX   1   3        -0.20000000     0.54897548     0.00494314     0.20000000     0.54897548     0.00494314 wJF$<f7P  
Change in Focus                :       0.000000                            0.000000 |nO }YU\E  
Tilt Y tolerance on surfaces 1 through 3 (degrees) q{.~=~  
TETY   1   3        -0.20000000     0.54897548     0.00494314     0.20000000     0.54897548     0.00494314 t aOsC! Bp  
Change in Focus                :       0.000000                            0.000000 iainl@3Qj  
Decenter X tolerance on surface 1 Os1y8ui  
TSDX   1            -0.20000000     0.53999563    -0.00403671     0.20000000     0.53999563    -0.00403671 3*b!]^d:D  
Change in Focus                :       0.000000                            0.000000 < YuI}d~'  
Decenter Y tolerance on surface 1 !Jo.Un7  
TSDY   1            -0.20000000     0.53999563    -0.00403671     0.20000000     0.53999563    -0.00403671 QLTE`t5w3'  
Change in Focus                :       0.000000                            0.000000 W&^2Fb  
Tilt X tolerance on surface (degrees) 1 O11.wLNH  
TSTX   1            -0.20000000     0.42678383    -0.11724851     0.20000000     0.42678383    -0.11724851 .{ ]=v  
Change in Focus                :       0.000000                            0.000000 Q&9& )8-  
Tilt Y tolerance on surface (degrees) 1 2qkC{klC^M  
TSTY   1            -0.20000000     0.42678383    -0.11724851     0.20000000     0.42678383    -0.11724851 ,<-a 6  
Change in Focus                :       0.000000                            0.000000 )5bdWJ>l  
Decenter X tolerance on surface 2 YCQ+9  
TSDX   2            -0.20000000     0.51705427    -0.02697807     0.20000000     0.51705427    -0.02697807 ]9pcDZB  
Change in Focus                :       0.000000                            0.000000 @i:_ JOl  
Decenter Y tolerance on surface 2 i@d@~M7/  
TSDY   2            -0.20000000     0.51705427    -0.02697807     0.20000000     0.51705427    -0.02697807 %K]nX#.B&  
Change in Focus                :       0.000000                            0.000000 dzMI5fA<_  
Tilt X tolerance on surface (degrees) 2 ts0K"xmY\c  
TSTX   2            -0.20000000     0.35349910    -0.19053324     0.20000000     0.35349910    -0.19053324 v6?<)M%  
Change in Focus                :       0.000000                            0.000000 :Zd# }P  
Tilt Y tolerance on surface (degrees) 2 =;xlmndT,  
TSTY   2            -0.20000000     0.35349910    -0.19053324     0.20000000     0.35349910    -0.19053324 3'2}F%!Mv  
Change in Focus                :       0.000000                            0.000000 ]# T9v06w  
Decenter X tolerance on surface 3 )uyh  
TSDX   3            -0.20000000     0.53419039    -0.00984195     0.20000000     0.53419039    -0.00984195 9/|i. 2&  
Change in Focus                :       0.000000                            0.000000 &On0)G3Rc  
Decenter Y tolerance on surface 3 X]*W +  
TSDY   3            -0.20000000     0.53419039    -0.00984195     0.20000000     0.53419039    -0.00984195 `o*g2fW!  
Change in Focus                :       0.000000                            0.000000 Dy^4^ J5+  
Tilt X tolerance on surface (degrees) 3 UoxF00H@!  
TSTX   3            -0.20000000     0.42861670    -0.11541563     0.20000000     0.42861670    -0.11541563 W.,J'  
Change in Focus                :       0.000000                            0.000000 XsHl%o8,z  
Tilt Y tolerance on surface (degrees) 3 ,K6]Q|U@r  
TSTY   3            -0.20000000     0.42861670    -0.11541563     0.20000000     0.42861670    -0.11541563 L=}UApK  
Change in Focus                :       0.000000                            0.000000 cw<DM%p  
Irregularity of surface 1 in fringes n*6',BY  
TIRR   1            -0.20000000     0.50973587    -0.03429647     0.20000000     0.57333868     0.02930634 .< vg[  
Change in Focus                :       0.000000                            0.000000 5tl}rmI`  
Irregularity of surface 2 in fringes zFuUv_t  
TIRR   2            -0.20000000     0.53400904    -0.01002330     0.20000000     0.55360281     0.00957047 uf)W? `e~  
Change in Focus                :       0.000000                            0.000000 ?\F,}e  
Irregularity of surface 3 in fringes y$V{yh[:  
TIRR   3            -0.20000000     0.58078982     0.03675748     0.20000000     0.49904394    -0.04498840 1,`x1dcO!A  
Change in Focus                :       0.000000                            0.000000 qc'tK6=jp  
Index tolerance on surface 1 +msHQk5#$m  
TIND   1            -0.00100000     0.52606778    -0.01796456     0.00100000     0.56121811     0.01718578 L}a3!33)C  
Change in Focus                :       0.000000                            0.000000 D&9j$#9Rh  
Index tolerance on surface 2 W\<#`0tUt  
TIND   2            -0.00100000     0.55639086     0.01235852     0.00100000     0.53126361    -0.01276872 D+o.9I/{  
Change in Focus                :       0.000000                           -0.000000 e#HP+b$  
Z#o\9/{(R  
Worst offenders: pmW=l/6+V3  
Type                      Value      Criterion        Change Nyqm0C6m^  
TSTY   2            -0.20000000     0.35349910    -0.19053324 n"K7@[d  
TSTY   2             0.20000000     0.35349910    -0.19053324 #1bgV  
TSTX   2            -0.20000000     0.35349910    -0.19053324 F<(x z=  
TSTX   2             0.20000000     0.35349910    -0.19053324 Eq<#pX6  
TSTY   1            -0.20000000     0.42678383    -0.11724851 Z%OSW  
TSTY   1             0.20000000     0.42678383    -0.11724851 NxX1_d  
TSTX   1            -0.20000000     0.42678383    -0.11724851 wD,F=O  
TSTX   1             0.20000000     0.42678383    -0.11724851 j'J*QK&Q  
TSTY   3            -0.20000000     0.42861670    -0.11541563 V!<#E)-?<  
TSTY   3             0.20000000     0.42861670    -0.11541563 l*m|b""].u  
t+(CAP|,  
Estimated Performance Changes based upon Root-Sum-Square method: 3MzY]J y(  
Nominal MTF                 :     0.54403234 rzBWk  
Estimated change            :    -0.36299231 :A{-^qd(  
Estimated MTF               :     0.18104003 6HqK%(  
d<3"$%C  
Compensator Statistics: \%Smp2K  
Change in back focus: 5~"=Fm<uD  
Minimum            :        -0.000000 z0W+4meoH  
Maximum            :         0.000000 y14@9<~9  
Mean               :        -0.000000 %ej"ZeM  
Standard Deviation :         0.000000 x/S%NySG  
vZDQ@\HrC  
Monte Carlo Analysis: &^7)yS+C  
Number of trials: 20 5Q}@Y3 i=  
H= y-Y_R  
Initial Statistics: Normal Distribution N_ DgnZ7*  
&4[iC/}  
  Trial       Criterion        Change db XG?K][  
      1     0.42804416    -0.11598818 I^|bQ3sor  
Change in Focus                :      -0.400171 ?hu 9c  
      2     0.54384387    -0.00018847 `3:%F>  
Change in Focus                :       1.018470 D_)vGvv3;.  
      3     0.44510003    -0.09893230 z} \9/`  
Change in Focus                :      -0.601922 }00e@a  
      4     0.18154684    -0.36248550 C(P$,;6  
Change in Focus                :       0.920681 DRIv<=Bt  
      5     0.28665820    -0.25737414 NE4fQi?3  
Change in Focus                :       1.253875 %dU}GYL_  
      6     0.21263372    -0.33139862 p{J_d,JH  
Change in Focus                :      -0.903878 Vwqfn4sx?i  
      7     0.40051424    -0.14351809 i=a LC*@  
Change in Focus                :      -1.354815 !!86Sv  
      8     0.48754161    -0.05649072 >g2B5KY  
Change in Focus                :       0.215922 FTfA\/tl(;  
      9     0.40357468    -0.14045766 Dn3~8  
Change in Focus                :       0.281783 N [u Xo  
     10     0.26315315    -0.28087919 kt#W~n  
Change in Focus                :      -1.048393 B# fzMaC  
     11     0.26120585    -0.28282649 z)~!G~J]  
Change in Focus                :       1.017611 >cNXB7]E>  
     12     0.24033815    -0.30369419 \PONaRK|[z  
Change in Focus                :      -0.109292 }BrE|'.j'  
     13     0.37164046    -0.17239188 ka3 Z5  
Change in Focus                :      -0.692430 20qVzXi  
     14     0.48597489    -0.05805744 h'x~"k1  
Change in Focus                :      -0.662040 `[&2K@u  
     15     0.21462327    -0.32940907 ;" *`  
Change in Focus                :       1.611296 d"UW38K{  
     16     0.43378226    -0.11025008 iL, XBoE  
Change in Focus                :      -0.640081 sriz b  
     17     0.39321881    -0.15081353 Snu;5:R  
Change in Focus                :       0.914906 1znV>PO!  
     18     0.20692530    -0.33710703 (O2HB-<rY  
Change in Focus                :       0.801607 0?xiGSZV  
     19     0.51374068    -0.03029165 @RIEO%S  
Change in Focus                :       0.947293 36a~!  
     20     0.38013374    -0.16389860 %6'D!H?d  
Change in Focus                :       0.667010 ha=z<Q  
Zg&\K~OC  
Number of traceable Monte Carlo files generated: 20 {UBQ?7.jE  
I)6Sbt JV^  
Nominal     0.54403234 Wt fOE@h  
Best        0.54384387    Trial     2 :(`>bY  
Worst       0.18154684    Trial     4 B7MW" y  
Mean        0.35770970 *h:EE6|  
Std Dev     0.11156454 1>VS/H`  
0Zh _Q  
eF^"{a3b  
Compensator Statistics: Q; /F0JDH  
Change in back focus: R?~h7 d  
Minimum            :        -1.354815 Q;O)>K  
Maximum            :         1.611296 1cBhcYv"  
Mean               :         0.161872 tC:,!4 P$  
Standard Deviation :         0.869664 PX2k,%  
d$rUxqB.  
90% >       0.20977951               q{/Jw"e  
80% >       0.22748071               #L:P R>  
50% >       0.38667627               X,+}syK  
20% >       0.46553746               dm=F:\C  
10% >       0.50064115                @:9fS  
rDX'oP:  
End of Run. (mIJI,[xn  
chmJ|  
这就有了些疑问，为什么我选择的补偿器是近轴焦点，而分析结果近轴焦点都不变化？？应该是变得。另外最后的蒙特卡洛分析，只有10%的大于0.5（我用的是MTF作为评价方式），可是我设计的MTF如图 ;kW}'&Ug  
[attachment=34429] )?&kQ^@v  
?s)sPM?  
是大于0.6左右的，难道我按照这个默认的公差来加工的话，只有10%的才可能大于0.5？那太低了啊，请问这该怎么进行进一步处理。或者之前哪有问题 gQ=POJ=G  
u?;Vxh3@|  
不吝赐教
sansummer 2011-06-21 15:00
我又试了试，原来是得根据上面的结果不断修改公差，放松或者变紧，然后在做公差分析，不断提高蒙特卡罗的结果。但是比如就拿我这个来说，理想是达到30lp处>0.6，那么实际做蒙特卡罗公差分析时，百分之多少以上的MTF是合格的呢？
sansummer 2011-06-22 08:56
90% >       0.20977951                 ~po%GoH(K  
80% >       0.22748071                 2HGD{;6>v{  
50% >       0.38667627                 8J3@VD.  
20% >       0.46553746                 tNuCxb-  
10% >       0.50064115 j8Q5d`  
#;LMtDaL  
最后这个数值是MTF值呢，还是MTF的公差？ Cz@FZb8  
plx/}ah8  
也就是说，这到底是有90%的产品MTF大于0.20977951还是90%的产品的MTF变化量大于0.20977951？？？   #} ~p^ 0  
CQjZAv  
怎么没人啊，大家讨论讨论吗
sansummer 2011-06-23 08:21
没有人啊？？？
天地大同 2011-06-23 09:35
引用第2楼sansummer于2011-06-22 08:56发表的  : Ep<!zO|  
90% >       0.20977951                 y)p$_.YFF  
80% >       0.22748071                 ] ^; b  
50% >       0.38667627                 7}d$*C  
20% >       0.46553746                 D(qHf9  
10% >       0.50064115 bk7^%O>  
....... NqT1buU#  
a: yB%:2  
z[qdmx^  
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   C|4 U78f{  
Mode                : Sensitivities QJ a4R  
Sampling            : 2 p*pn@z  
Nominal Criterion   : 0.54403234 J[}gku?C;  
Test Wavelength     : 0.6328 l5=u3r9WYC  
O1?B{F/ e  
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？ y _'eyR@)  
n2n00%Wu[  
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 ')C|`(hs   
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   LxB&7  
Mode                : Sensitivities fzl=d_  
Sam .. (2011-06-23 09:38)  -eUV`&[4  
77``8,  
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 RYH)AS4w'  
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