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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 }F B]LLi  
ZBY*C;[)*P  
[attachment=34427] P* Z1Rs_  
Y| dw>qO  
然后添加了默认公差分析，基本没变 GZq~Pl  
Hoj'zY  
[attachment=34428] BE$Wj;Q  
g6D7Y<}d  
然后运行分析的结果如下： 4{v?<x8  
1#w'<}h#U  
Analysis of Tolerances XI5TVxo(q  
Jc=~BT_G  
File : E:\光学设计资料\zemax练习\f500.ZMX j tH>&O  
Title: .EfGL _  
Date : TUE JUN 21 2011 6,raRg6  
cVYPPal  
Units are Millimeters. a#pM9n~a  
All changes are computed using linear differences. xo GX&^=  
S%6V(L|  
Paraxial Focus compensation only. )x<oRHx]  
eWk W,a  
WARNING: Solves should be removed prior to tolerancing. B]nu \!  
6uu49x_^L4  
Mnemonics: BD_"w]bqD  
TFRN: Tolerance on curvature in fringes. uS|f|)U&  
TTHI: Tolerance on thickness. v(GT+i)|  
TSDX: Tolerance on surface decentering in x. O<\h_   
TSDY: Tolerance on surface decentering in y. ^ZD0rp(l  
TSTX: Tolerance on surface tilt in x (degrees). b~td ^  
TSTY: Tolerance on surface tilt in y (degrees). 6j6P&[  
TIRR: Tolerance on irregularity (fringes). D/`b ~Yl  
TIND: Tolerance on Nd index of refraction. |h 3`z  
TEDX: Tolerance on element decentering in x. 4|INy =<"t  
TEDY: Tolerance on element decentering in y. cs-dvpMZ  
TETX: Tolerance on element tilt in x (degrees). yyv<MSU8  
TETY: Tolerance on element tilt in y (degrees). jQ X9KwSP  
X B[C&3I  
WARNING: RAY AIMING IS OFF. Very loose tolerances may not be computed accurately. 3FQXp  
>U#j\2!Sg  
WARNING: Boundary constraints on compensators will be ignored. Pm=i(TBS/  
OlcWptM$  
Criterion           : Geometric MTF average S&T at 30.0000 cycles per mm FNHJHuTe  
Mode                : Sensitivities nK>D& S_!  
Sampling            : 2 " o>` Y  
Nominal Criterion   : 0.54403234 IuOQX}  
Test Wavelength     : 0.6328 Uv|^k8(  
zz[[9Am!  
3BK_$Fy  
Fields: XY Symmetric Angle in degrees r.10b]b  
#      X-Field      Y-Field       Weight    VDX    VDY    VCX    VCY Y}hz UKJ  
1   0.000E+000   0.000E+000   1.000E+000  0.000  0.000  0.000  0.000 'l41];_  
tKLAA+Z  
Sensitivity Analysis: 1vL$k[^&d  
;_D5]kl`  
                 |----------------- Minimum ----------------| |----------------- Maximum ----------------| IfF&QBi  
Type                      Value      Criterion        Change          Value      Criterion        Change q@ %9Y3  
Fringe tolerance on surface 1 ?{KC@c*c  
TFRN   1            -1.00000000     0.54257256    -0.00145977     1.00000000     0.54548607     0.00145374 9 Xx4,#?  
Change in Focus                :      -0.000000                            0.000000 InfUH8./t  
Fringe tolerance on surface 2 5imqZw  
TFRN   2            -1.00000000     0.54177471    -0.00225762     1.00000000     0.54627463     0.00224230 Sp~gY]:  
Change in Focus                :       0.000000                            0.000000 ^#,cWG}z  
Fringe tolerance on surface 3 :}[[G2|9  
TFRN   3            -1.00000000     0.54779866     0.00376632     1.00000000     0.54022572    -0.00380662 ~\~XD+jy"  
Change in Focus                :      -0.000000                            0.000000 %q5iy0~P  
Thickness tolerance on surface 1 QP[`*X  
TTHI   1   3        -0.20000000     0.54321462    -0.00081772     0.20000000     0.54484759     0.00081525 5:x .<  
Change in Focus                :       0.000000                            0.000000 t.]c44RY  
Thickness tolerance on surface 2 90]{4]y;  
TTHI   2   3        -0.20000000     0.54478712     0.00075478     0.20000000     0.54327558    -0.00075675 !|;w(/  
Change in Focus                :       0.000000                           -0.000000 o](nK5?  
Decenter X tolerance on surfaces 1 through 3 K$Yc!4M  
TEDX   1   3        -0.20000000     0.54401464   -1.7700E-005     0.20000000     0.54401464   -1.7700E-005 '$5o5\  
Change in Focus                :       0.000000                            0.000000 &Vi0.o  
Decenter Y tolerance on surfaces 1 through 3 & wG3RR|  
TEDY   1   3        -0.20000000     0.54401464   -1.7700E-005     0.20000000     0.54401464   -1.7700E-005 ,';+A{aV  
Change in Focus                :       0.000000                            0.000000 A}Gj;vaw  
Tilt X tolerance on surfaces 1 through 3 (degrees) 2z=GKV  
TETX   1   3        -0.20000000     0.54897548     0.00494314     0.20000000     0.54897548     0.00494314 `@r#o&  
Change in Focus                :       0.000000                            0.000000 lITZ|u  
Tilt Y tolerance on surfaces 1 through 3 (degrees) MB] Y|Vee  
TETY   1   3        -0.20000000     0.54897548     0.00494314     0.20000000     0.54897548     0.00494314 p!w}hB598  
Change in Focus                :       0.000000                            0.000000 +6v;( ] y  
Decenter X tolerance on surface 1 $N`uM  
TSDX   1            -0.20000000     0.53999563    -0.00403671     0.20000000     0.53999563    -0.00403671 g+iV0bbT  
Change in Focus                :       0.000000                            0.000000 w=H4#a?fc  
Decenter Y tolerance on surface 1 )QiHe}  
TSDY   1            -0.20000000     0.53999563    -0.00403671     0.20000000     0.53999563    -0.00403671 [j`-R 0Np  
Change in Focus                :       0.000000                            0.000000 # pz{,  
Tilt X tolerance on surface (degrees) 1 c&T14!lfn  
TSTX   1            -0.20000000     0.42678383    -0.11724851     0.20000000     0.42678383    -0.11724851 !saKAb}d7H  
Change in Focus                :       0.000000                            0.000000 Bt^];DjH  
Tilt Y tolerance on surface (degrees) 1 C JNz J(  
TSTY   1            -0.20000000     0.42678383    -0.11724851     0.20000000     0.42678383    -0.11724851 8!AMRE  
Change in Focus                :       0.000000                            0.000000 4ng*SE _  
Decenter X tolerance on surface 2 07dUBoq  
TSDX   2            -0.20000000     0.51705427    -0.02697807     0.20000000     0.51705427    -0.02697807 E~|`Q6&Y  
Change in Focus                :       0.000000                            0.000000 'd@Vusq}2  
Decenter Y tolerance on surface 2 L5*,l`lET  
TSDY   2            -0.20000000     0.51705427    -0.02697807     0.20000000     0.51705427    -0.02697807 6@ HY+RCx  
Change in Focus                :       0.000000                            0.000000 ]m(5>h#  
Tilt X tolerance on surface (degrees) 2 oFeflcSz  
TSTX   2            -0.20000000     0.35349910    -0.19053324     0.20000000     0.35349910    -0.19053324 N#`aVW'{v2  
Change in Focus                :       0.000000                            0.000000 R.)U<`||  
Tilt Y tolerance on surface (degrees) 2 ljrA^P ,>P  
TSTY   2            -0.20000000     0.35349910    -0.19053324     0.20000000     0.35349910    -0.19053324 uPpRzp  
Change in Focus                :       0.000000                            0.000000 Z0e+CEzq  
Decenter X tolerance on surface 3 m 5NF)eL  
TSDX   3            -0.20000000     0.53419039    -0.00984195     0.20000000     0.53419039    -0.00984195 vAE?^*F  
Change in Focus                :       0.000000                            0.000000 fV.43E  
Decenter Y tolerance on surface 3 Ueyt}44.e2  
TSDY   3            -0.20000000     0.53419039    -0.00984195     0.20000000     0.53419039    -0.00984195 u? f3&pA  
Change in Focus                :       0.000000                            0.000000 E4'D4@\W  
Tilt X tolerance on surface (degrees) 3 3&@MZF&  
TSTX   3            -0.20000000     0.42861670    -0.11541563     0.20000000     0.42861670    -0.11541563 dkQA[/k  
Change in Focus                :       0.000000                            0.000000 ,b@0Qa"  
Tilt Y tolerance on surface (degrees) 3 VrokEK*qbY  
TSTY   3            -0.20000000     0.42861670    -0.11541563     0.20000000     0.42861670    -0.11541563 CFh&z^]PR  
Change in Focus                :       0.000000                            0.000000 (;T; ?v`-  
Irregularity of surface 1 in fringes ^IGTGY]s  
TIRR   1            -0.20000000     0.50973587    -0.03429647     0.20000000     0.57333868     0.02930634 nWK"i\2#G  
Change in Focus                :       0.000000                            0.000000 TJB0O]@3  
Irregularity of surface 2 in fringes (t9qwSS8z  
TIRR   2            -0.20000000     0.53400904    -0.01002330     0.20000000     0.55360281     0.00957047 B!le=V,@,  
Change in Focus                :       0.000000                            0.000000 ~^"cq S(  
Irregularity of surface 3 in fringes [<sBnHbvQ.  
TIRR   3            -0.20000000     0.58078982     0.03675748     0.20000000     0.49904394    -0.04498840 Ac.z6]p  
Change in Focus                :       0.000000                            0.000000 9& W\BQ  
Index tolerance on surface 1 5Wi5`8m  
TIND   1            -0.00100000     0.52606778    -0.01796456     0.00100000     0.56121811     0.01718578 ANCgch\  
Change in Focus                :       0.000000                            0.000000 ' U)~|(\i  
Index tolerance on surface 2 cuR|cUK  
TIND   2            -0.00100000     0.55639086     0.01235852     0.00100000     0.53126361    -0.01276872 _pNUI {De  
Change in Focus                :       0.000000                           -0.000000 Drlt xI)  
C({L4O#?o  
Worst offenders: _V{WXsOx(  
Type                      Value      Criterion        Change %'* |N [  
TSTY   2            -0.20000000     0.35349910    -0.19053324 $}k"wI[  
TSTY   2             0.20000000     0.35349910    -0.19053324 %p2C5z?  
TSTX   2            -0.20000000     0.35349910    -0.19053324 \FTv N  
TSTX   2             0.20000000     0.35349910    -0.19053324 ]'_z (s}  
TSTY   1            -0.20000000     0.42678383    -0.11724851 n37( sKG  
TSTY   1             0.20000000     0.42678383    -0.11724851 4:<0i0)5  
TSTX   1            -0.20000000     0.42678383    -0.11724851 >CPkL_@VZ=  
TSTX   1             0.20000000     0.42678383    -0.11724851 $Y,]D*|"K  
TSTY   3            -0.20000000     0.42861670    -0.11541563 |<ke>j/6n  
TSTY   3             0.20000000     0.42861670    -0.11541563 cp?`\P  
B>Nxc@=D  
Estimated Performance Changes based upon Root-Sum-Square method: O|j5ulO}&"  
Nominal MTF                 :     0.54403234 o D* '  
Estimated change            :    -0.36299231 6XQ)Q)  
Estimated MTF               :     0.18104003 Y=3Y~  
]hvB-R16f  
Compensator Statistics: MO#%w  
Change in back focus: r 'jVF'w  
Minimum            :        -0.000000 G)43Y!  
Maximum            :         0.000000 >/bl r}5 H  
Mean               :        -0.000000 V7401@F  
Standard Deviation :         0.000000 FcW ?([l  
5[gkGKkf_  
Monte Carlo Analysis: dIO\ lL   
Number of trials: 20 5Ij_$a  
Op%^dwVG(v  
Initial Statistics: Normal Distribution :{66WSa@Dd  
j9u-C/Q\r  
  Trial       Criterion        Change >; W)tc,  
      1     0.42804416    -0.11598818 N%B#f\N  
Change in Focus                :      -0.400171 2CxdNj  
      2     0.54384387    -0.00018847 2%8N<GW.F  
Change in Focus                :       1.018470 6:EO  
      3     0.44510003    -0.09893230 R9CAw>s  
Change in Focus                :      -0.601922 9i`LOl:;  
      4     0.18154684    -0.36248550 `P z !H  
Change in Focus                :       0.920681 Jx>P%>+<j  
      5     0.28665820    -0.25737414 XPEjMm'*b3  
Change in Focus                :       1.253875 iuHG9#n  
      6     0.21263372    -0.33139862 lHGv:TN  
Change in Focus                :      -0.903878 s{q2C}=$?D  
      7     0.40051424    -0.14351809 C3_*o>8  
Change in Focus                :      -1.354815 B)-S@.u  
      8     0.48754161    -0.05649072 "7<4NV@yQ  
Change in Focus                :       0.215922 |;_ yAL  
      9     0.40357468    -0.14045766 So8P 8TCK  
Change in Focus                :       0.281783 u\E.H5u27  
     10     0.26315315    -0.28087919 Xl aNR+  
Change in Focus                :      -1.048393 O.$<Bf9  
     11     0.26120585    -0.28282649 df:,5@CJ8  
Change in Focus                :       1.017611 NFSPw` f  
     12     0.24033815    -0.30369419 !c&^b@ yw  
Change in Focus                :      -0.109292 q@!:<Ra,){  
     13     0.37164046    -0.17239188 pj )I4C)  
Change in Focus                :      -0.692430 Fu`g)#Z  
     14     0.48597489    -0.05805744 Qxvz}r.l]  
Change in Focus                :      -0.662040 O:x=yj%^  
     15     0.21462327    -0.32940907 VC+\RB#:-  
Change in Focus                :       1.611296 DuE>KX{<!R  
     16     0.43378226    -0.11025008 5Ci}w|c/>  
Change in Focus                :      -0.640081 WIGb7}egR  
     17     0.39321881    -0.15081353 evs2dz<eA  
Change in Focus                :       0.914906 7RLh#D|  
     18     0.20692530    -0.33710703 "_l[4o[D  
Change in Focus                :       0.801607 B 3h<K}  
     19     0.51374068    -0.03029165 ec0vg.>p  
Change in Focus                :       0.947293 _YJwF1e+M  
     20     0.38013374    -0.16389860 OiOL 4}5(  
Change in Focus                :       0.667010 Ya. $x~  
[Vf|4xcD  
Number of traceable Monte Carlo files generated: 20 'IP!)DS  
aj,ZM,Ad  
Nominal     0.54403234 b?^n'0  
Best        0.54384387    Trial     2 < 9MnQ*@  
Worst       0.18154684    Trial     4 }Q=Zqlvz  
Mean        0.35770970 QXz!1o+"  
Std Dev     0.11156454 lrE0)B5F  
qa~[fORO[  
?gtkf[0B|  
Compensator Statistics: b?$09,{0  
Change in back focus: mOB\ `&h5  
Minimum            :        -1.354815 R3PhKdQ"  
Maximum            :         1.611296 TGNeEYr  
Mean               :         0.161872 d5\1-d_uz  
Standard Deviation :         0.869664 ayD\b6Z2.  
%FU[ j^  
90% >       0.20977951               VJ"3G;;  
80% >       0.22748071               Dpd$&Wr0Y  
50% >       0.38667627               Esjv^* v9-  
20% >       0.46553746               v(^rq  
10% >       0.50064115                fz&}N`n  
O>GP>U?]  
End of Run. %)D7Dr  
r Lh h  
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 rA`\we)  
[attachment=34429] "Pc,+>vh  
~c^-DAgB  
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 agYK aM1N  
z!+<m<  
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                 WI6E3,ejB1  
80% >       0.22748071                 m}9V@@  
50% >       0.38667627                 [}2.CM  
20% >       0.46553746                 o FLrSmY)E  
10% >       0.50064115 OK\%cq/U  
i[pf*W0g  
最后这个数值是MTF值呢，还是MTF的公差？ pqSE|3*l  
DBUwf1=qj  
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？？？   qt(:bEr^6b  
xgz87d/<:  
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  : @/~k8M/  
90% >       0.20977951                 TRLeZ0EC  
80% >       0.22748071                 x{>Y$t]  
50% >       0.38667627                 q7&yb.<KD.  
20% >       0.46553746                 O'-Zn]@.]  
10% >       0.50064115 XDk o{jEJ  
....... {(}w4.!  
MLBg_<  
:{:?D\%6  
这些数值都是MTF值
天地大同 2011-06-23 09:38
Criterion           : Geometric MTF average S&T at 30.0000 cycles per mm   o:8S$F`O@  
Mode                : Sensitivities ,{?bM  
Sampling            : 2 Cw[Od"B\?U  
Nominal Criterion   : 0.54403234 CY3\:D0I  
Test Wavelength     : 0.6328 &n]Z1e}5  
_8li4;F  
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？ ZqbM%(=z(`  
.8qzU47E  
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 |T$a+lHMD  
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   ]xJ'oBhy  
Mode                : Sensitivities 1F3QI|  
Sam .. (2011-06-23 09:38)   +eDN,iv  
$vgmoJ@X0  
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 ;_?zB NW  
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