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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 uQKT  
Pa: |_IXA  
[attachment=34427] b@hqz!)l`  
88$8d>-  
然后添加了默认公差分析，基本没变 +ami?#Sz*;  
$/Uq0U  
[attachment=34428] S{T >}'y  
\YrUe1  
然后运行分析的结果如下： $6R-5oQ  
8zW2zkv2|#  
Analysis of Tolerances FGBbO\< /  
H3-hcx54T  
File : E:\光学设计资料\zemax练习\f500.ZMX ~})e?q;b  
Title: 5*u+q2\F  
Date : TUE JUN 21 2011 \1M4Dl5!  
M/`lM$98:  
Units are Millimeters. Z6MO^_m2  
All changes are computed using linear differences. Dk51z@  
5'u<iSmBo  
Paraxial Focus compensation only. ="l/klYV  
)MT}+ai  
WARNING: Solves should be removed prior to tolerancing. {Ou1KDy#)  
&s!@29DXR  
Mnemonics: 5~DJWi,  
TFRN: Tolerance on curvature in fringes. m+z& Q  
TTHI: Tolerance on thickness. 6[AL|d DK  
TSDX: Tolerance on surface decentering in x. WcbiqxK7-  
TSDY: Tolerance on surface decentering in y. 9 QJyZ  
TSTX: Tolerance on surface tilt in x (degrees). :e+jU5;]3  
TSTY: Tolerance on surface tilt in y (degrees). ]7c=PC  
TIRR: Tolerance on irregularity (fringes). SOaoo^,O  
TIND: Tolerance on Nd index of refraction. $M:*T.3  
TEDX: Tolerance on element decentering in x. A?OQE9'  
TEDY: Tolerance on element decentering in y. }"%N4(Kd  
TETX: Tolerance on element tilt in x (degrees). _Y m2/3!  
TETY: Tolerance on element tilt in y (degrees). {Qj~M<@3  
(S Yln>o  
WARNING: RAY AIMING IS OFF. Very loose tolerances may not be computed accurately. Bk{]g=DO  
H3oFORh  
WARNING: Boundary constraints on compensators will be ignored. % |L=l{g  
=($xG#g`  
Criterion           : Geometric MTF average S&T at 30.0000 cycles per mm 0JujesUw(  
Mode                : Sensitivities buHJB*?9  
Sampling            : 2 86a\+Kz%%L  
Nominal Criterion   : 0.54403234 ba9?(+i$h  
Test Wavelength     : 0.6328 es0hm2HT3  
Ab;.5O$y  
#,'kXj  
Fields: XY Symmetric Angle in degrees Lu%b9Jk  
#      X-Field      Y-Field       Weight    VDX    VDY    VCX    VCY @IZnFHN  
1   0.000E+000   0.000E+000   1.000E+000  0.000  0.000  0.000  0.000 bpa?C  
[mueZQyI?0  
Sensitivity Analysis: F,CT Z~  
;q>ah!"k  
                 |----------------- Minimum ----------------| |----------------- Maximum ----------------| -$Ih@2"6  
Type                      Value      Criterion        Change          Value      Criterion        Change i,VMd  
Fringe tolerance on surface 1 +LJ73 !  
TFRN   1            -1.00000000     0.54257256    -0.00145977     1.00000000     0.54548607     0.00145374 @>7%qS  
Change in Focus                :      -0.000000                            0.000000 _,*r_D61S  
Fringe tolerance on surface 2 <%mRSv  
TFRN   2            -1.00000000     0.54177471    -0.00225762     1.00000000     0.54627463     0.00224230 ;qV>L=a  
Change in Focus                :       0.000000                            0.000000 *qpSXmOz  
Fringe tolerance on surface 3 RPbZ(.  
TFRN   3            -1.00000000     0.54779866     0.00376632     1.00000000     0.54022572    -0.00380662 AQ^u   
Change in Focus                :      -0.000000                            0.000000 _)iCa3z  
Thickness tolerance on surface 1 xD=csJ'(  
TTHI   1   3        -0.20000000     0.54321462    -0.00081772     0.20000000     0.54484759     0.00081525 )QJUUn#  
Change in Focus                :       0.000000                            0.000000 &#i"=\d  
Thickness tolerance on surface 2 uHNCSz H(  
TTHI   2   3        -0.20000000     0.54478712     0.00075478     0.20000000     0.54327558    -0.00075675 -D: b*D  
Change in Focus                :       0.000000                           -0.000000 PQE =D0  
Decenter X tolerance on surfaces 1 through 3 /g.U&oI]D  
TEDX   1   3        -0.20000000     0.54401464   -1.7700E-005     0.20000000     0.54401464   -1.7700E-005 o5)<$P43  
Change in Focus                :       0.000000                            0.000000 b\5F]r  
Decenter Y tolerance on surfaces 1 through 3 yWf`rF{  
TEDY   1   3        -0.20000000     0.54401464   -1.7700E-005     0.20000000     0.54401464   -1.7700E-005 y>ktcuML  
Change in Focus                :       0.000000                            0.000000 bW:!5"_{H  
Tilt X tolerance on surfaces 1 through 3 (degrees) MpOc  
TETX   1   3        -0.20000000     0.54897548     0.00494314     0.20000000     0.54897548     0.00494314 1B\WA8  
Change in Focus                :       0.000000                            0.000000 -tU'yKhn  
Tilt Y tolerance on surfaces 1 through 3 (degrees) lk=<A"^S  
TETY   1   3        -0.20000000     0.54897548     0.00494314     0.20000000     0.54897548     0.00494314 o#N+Y?O  
Change in Focus                :       0.000000                            0.000000 lmhLM. 2  
Decenter X tolerance on surface 1 bhs _9ivw  
TSDX   1            -0.20000000     0.53999563    -0.00403671     0.20000000     0.53999563    -0.00403671 uEx-]F  
Change in Focus                :       0.000000                            0.000000 UGatWj  
Decenter Y tolerance on surface 1 3iU=c&P  
TSDY   1            -0.20000000     0.53999563    -0.00403671     0.20000000     0.53999563    -0.00403671 U%/+B]6jP  
Change in Focus                :       0.000000                            0.000000 ^kSqsT"  
Tilt X tolerance on surface (degrees) 1 O&hTNIfi  
TSTX   1            -0.20000000     0.42678383    -0.11724851     0.20000000     0.42678383    -0.11724851 23jwAsSo  
Change in Focus                :       0.000000                            0.000000 h>bx}$q  
Tilt Y tolerance on surface (degrees) 1 7PF%76TO  
TSTY   1            -0.20000000     0.42678383    -0.11724851     0.20000000     0.42678383    -0.11724851 VS|2|n1<6  
Change in Focus                :       0.000000                            0.000000 ,]/X\t5]D  
Decenter X tolerance on surface 2 /Gfw8g\}  
TSDX   2            -0.20000000     0.51705427    -0.02697807     0.20000000     0.51705427    -0.02697807 :MDKC /mC  
Change in Focus                :       0.000000                            0.000000 $`'/+x"%  
Decenter Y tolerance on surface 2 L4l!96]a  
TSDY   2            -0.20000000     0.51705427    -0.02697807     0.20000000     0.51705427    -0.02697807 ;GD]dW#  
Change in Focus                :       0.000000                            0.000000 Z #m+ObHK1  
Tilt X tolerance on surface (degrees) 2 wS3'?PRX  
TSTX   2            -0.20000000     0.35349910    -0.19053324     0.20000000     0.35349910    -0.19053324 D3K8F@d  
Change in Focus                :       0.000000                            0.000000 3=;<$+I6  
Tilt Y tolerance on surface (degrees) 2 lUMdrt0@z  
TSTY   2            -0.20000000     0.35349910    -0.19053324     0.20000000     0.35349910    -0.19053324 %N_%JK\{@  
Change in Focus                :       0.000000                            0.000000 ( uidNq  
Decenter X tolerance on surface 3 HtYwEjI  
TSDX   3            -0.20000000     0.53419039    -0.00984195     0.20000000     0.53419039    -0.00984195 C9 j|OSgk  
Change in Focus                :       0.000000                            0.000000 '4<1 1(U  
Decenter Y tolerance on surface 3 N4HqLh23H  
TSDY   3            -0.20000000     0.53419039    -0.00984195     0.20000000     0.53419039    -0.00984195 ijU*|8n{>  
Change in Focus                :       0.000000                            0.000000 h@wgd~X9  
Tilt X tolerance on surface (degrees) 3 2b8L\$1q  
TSTX   3            -0.20000000     0.42861670    -0.11541563     0.20000000     0.42861670    -0.11541563 SZCze"`[  
Change in Focus                :       0.000000                            0.000000 rQ snhv  
Tilt Y tolerance on surface (degrees) 3 f|oh.z_R  
TSTY   3            -0.20000000     0.42861670    -0.11541563     0.20000000     0.42861670    -0.11541563 h zn6kbv  
Change in Focus                :       0.000000                            0.000000 .5{ab\_af  
Irregularity of surface 1 in fringes p{dj~ &v  
TIRR   1            -0.20000000     0.50973587    -0.03429647     0.20000000     0.57333868     0.02930634 GsM<2@?  
Change in Focus                :       0.000000                            0.000000 mB)bcuPv  
Irregularity of surface 2 in fringes a"u0Q5J  
TIRR   2            -0.20000000     0.53400904    -0.01002330     0.20000000     0.55360281     0.00957047 @9|hMo  
Change in Focus                :       0.000000                            0.000000 5Jnlz@P9  
Irregularity of surface 3 in fringes *DhiN  
TIRR   3            -0.20000000     0.58078982     0.03675748     0.20000000     0.49904394    -0.04498840 ZSm3XXk  
Change in Focus                :       0.000000                            0.000000 oe~b}:  
Index tolerance on surface 1 w@fi{H(R  
TIND   1            -0.00100000     0.52606778    -0.01796456     0.00100000     0.56121811     0.01718578 ?|Zx!z ($  
Change in Focus                :       0.000000                            0.000000 cQ_Hp <D  
Index tolerance on surface 2 Yu2Bkq+  
TIND   2            -0.00100000     0.55639086     0.01235852     0.00100000     0.53126361    -0.01276872 ;YL i{  
Change in Focus                :       0.000000                           -0.000000 lqpp)Cq  
j b!i$/%w  
Worst offenders: El"Q'(:/U  
Type                      Value      Criterion        Change '@P^0+B!(.  
TSTY   2            -0.20000000     0.35349910    -0.19053324 #C@FYO f*  
TSTY   2             0.20000000     0.35349910    -0.19053324 a7%]Y}$  
TSTX   2            -0.20000000     0.35349910    -0.19053324 iO; 7t@]-  
TSTX   2             0.20000000     0.35349910    -0.19053324 Pj% |\kbNs  
TSTY   1            -0.20000000     0.42678383    -0.11724851 ^sWT:BDh  
TSTY   1             0.20000000     0.42678383    -0.11724851 9( wK@  
TSTX   1            -0.20000000     0.42678383    -0.11724851 x ]ot 2  
TSTX   1             0.20000000     0.42678383    -0.11724851 ;i:d+!3XwC  
TSTY   3            -0.20000000     0.42861670    -0.11541563 ;t`&n['N>  
TSTY   3             0.20000000     0.42861670    -0.11541563 >b4eL59  
II x#2r  
Estimated Performance Changes based upon Root-Sum-Square method: sCHJ&>m5-  
Nominal MTF                 :     0.54403234 XU7qd:|  
Estimated change            :    -0.36299231 ,$&&-p I]  
Estimated MTF               :     0.18104003 DM>eVS3}  
g eCM<]  
Compensator Statistics: FaJ&GOM,  
Change in back focus: .#pU=v#/[  
Minimum            :        -0.000000 v/=}B(TDF  
Maximum            :         0.000000 hY8reQp1  
Mean               :        -0.000000 =odFmF  
Standard Deviation :         0.000000 }RqK84K  
$iz|\m  
Monte Carlo Analysis: *4Y V v  
Number of trials: 20 h9W^[6  
'2^Q1{ :\  
Initial Statistics: Normal Distribution IPo?:1x]s  
#>+HlT  
  Trial       Criterion        Change cYt!n5w~W  
      1     0.42804416    -0.11598818 1&Zj  
Change in Focus                :      -0.400171 I,8Er2;)  
      2     0.54384387    -0.00018847 cExS7~*  
Change in Focus                :       1.018470 y'*K|a TG  
      3     0.44510003    -0.09893230 Tnm.A?  
Change in Focus                :      -0.601922 83q6Sv  
      4     0.18154684    -0.36248550 #;nYg?d=  
Change in Focus                :       0.920681 +srGN5!  
      5     0.28665820    -0.25737414 o " #\ >  
Change in Focus                :       1.253875 aw42oLk  
      6     0.21263372    -0.33139862 6NHX2Ja  
Change in Focus                :      -0.903878 M/gGoE{  
      7     0.40051424    -0.14351809 ?5 7Sk+  
Change in Focus                :      -1.354815 g}',(tPMZ  
      8     0.48754161    -0.05649072 _5N]B|cO  
Change in Focus                :       0.215922 uW36;3[f#1  
      9     0.40357468    -0.14045766 n6a`;0f[R  
Change in Focus                :       0.281783 W6/yn  
     10     0.26315315    -0.28087919 B`J~^+`[*  
Change in Focus                :      -1.048393 )+2hl  
     11     0.26120585    -0.28282649 LSr]S79N1  
Change in Focus                :       1.017611 Jze:[MYS  
     12     0.24033815    -0.30369419 R*2E/8Ia  
Change in Focus                :      -0.109292 [u*5z.^  
     13     0.37164046    -0.17239188 <W$mj04@  
Change in Focus                :      -0.692430 Npy :!  
     14     0.48597489    -0.05805744 W:L AP R  
Change in Focus                :      -0.662040 9;-p'C  
     15     0.21462327    -0.32940907 y_lU=(%Jd  
Change in Focus                :       1.611296 YcpoL@ab  
     16     0.43378226    -0.11025008 'SF<_aS(  
Change in Focus                :      -0.640081 81Z) eO#  
     17     0.39321881    -0.15081353 g7W"  
Change in Focus                :       0.914906 7O-x<P;  
     18     0.20692530    -0.33710703 :G%61x&=Zc  
Change in Focus                :       0.801607 .ctw2x5W  
     19     0.51374068    -0.03029165 Hja3a{LH  
Change in Focus                :       0.947293 v z '&%(  
     20     0.38013374    -0.16389860 [K0(RDV)%  
Change in Focus                :       0.667010 '16b2n+F@#  
wD'SPk5S?  
Number of traceable Monte Carlo files generated: 20 HCC#j9UN6  
5C5sgR C  
Nominal     0.54403234 Fy-t T]Q9  
Best        0.54384387    Trial     2 ckE-",G  
Worst       0.18154684    Trial     4 u5f9Jw}  
Mean        0.35770970 |4 0`B% Z  
Std Dev     0.11156454 b2&0Hx  
Gu\q%'I  
6G""I]uT  
Compensator Statistics: <lE <f+  
Change in back focus: n8ZZ#}Nhg  
Minimum            :        -1.354815 1NA.nw.  
Maximum            :         1.611296 L>4"(  
Mean               :         0.161872 VQ9/Gxdeo  
Standard Deviation :         0.869664 8NAON5.!  
C1 GKLl~  
90% >       0.20977951               6zuTQ^pz  
80% >       0.22748071               t=W}SH  
50% >       0.38667627               D7Q$R:6|  
20% >       0.46553746               -fW*vE:  
10% >       0.50064115                Q:d]imw!O  
Od,qbU4O  
End of Run. @O^6&\s>  
57  
这就有了些疑问，为什么我选择的补偿器是近轴焦点，而分析结果近轴焦点都不变化？？应该是变得。另外最后的蒙特卡洛分析，只有10%的大于0.5（我用的是MTF作为评价方式），可是我设计的MTF如图 ,S]7 'UP  
[attachment=34429] =R$u[~Xl2X  
dk4CpN  
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 Tqn@P  
Ig0VW)@  
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                 !9VY|&fHe  
80% >       0.22748071                 o~y;j75{.*  
50% >       0.38667627                 =wV<hg)C  
20% >       0.46553746                 Pw`8Wj  
10% >       0.50064115 w;:*P  
,Ae6/D$h/  
最后这个数值是MTF值呢，还是MTF的公差？ u[=r,^YQ  
YWO)HsjP  
也就是说，这到底是有90%的产品MTF大于0.20977951还是90%的产品的MTF变化量大于0.20977951？？？   ">,|V-H  
A&Usddcp  
怎么没人啊，大家讨论讨论吗
sansummer 2011-06-23 08:21
没有人啊？？？
天地大同 2011-06-23 09:35
引用第2楼sansummer于2011-06-22 08:56发表的  : b)5uf'?-  
90% >       0.20977951                 }Gm>`cw-  
80% >       0.22748071                 x$.^"l-vX  
50% >       0.38667627                 :B5Fdp3  
20% >       0.46553746                 U175{N%3  
10% >       0.50064115 ;yLu R  
....... p\tm:QWD;  
*-=(Q`3  
Zd}9O jz5  
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   CR`Q#Yi  
Mode                : Sensitivities [" )o.(  
Sampling            : 2 rv^@,8vq  
Nominal Criterion   : 0.54403234 fo#fg8zX%  
Test Wavelength     : 0.6328 6azGhxh  
i$:*Pb3mV  
波长632.8nm 时 mtf 是 0.54403234  没达到0.6
sansummer 2011-06-24 09:37
谢谢。您说的“波长632.8nm 时 mtf 是 0.54403234  没达到0.6”这是一个评价标准吧？ 2W96Zju\  
Is)u }  
这个评价标准和我理想的设计结果的0.6有什么联系吗，另外这个 0.54403234  是这么来的？
天地大同 2011-06-24 11:21
你试试把原来的系统波长改成632.8nm，看看Geometric MTF    30 per mm 的mtf值是不是0.54403234
sansummer 2011-06-24 14:30
啊...这倒也是。换了波长的确可能有所变化。另外还有就是如果现在百分比太低，我是否应该考虑把最敏感的公差再紧一些，就会好了？
天地大同 2011-06-28 14:14
恩，多多尝试
sansummer 2011-06-28 15:04
最后一个问题，你的头像怎么换的？哈哈
天地大同 2011-06-28 16:09
是啊  本来没有的  最近刚弄的
sansummer 2011-06-28 18:02
多谢多谢，我也换头像啦
guapiqlh 2011-12-29 09:54
自己看看书不是一样可以解决吗？
雷伽多 2012-02-27 15:15
楼主分享一下学习ZEMAX公差分析的心得吧。我也刚刚学习这块，很是晕，不知怎么入手。看了一些相关资料，总说蒙特卡洛分析可以模拟生产装配的实际情况，我就是不知道他是如何做到的
zhujiehui 2012-02-27 16:32
学习一下啊
雷伽多 2012-03-07 17:37
额。。。请问你把敏感的公差调紧了后，百分比数有所变化吗？我也遇到同样的问题。。。
nanuto 2012-03-09 18:38
好样的
licc 2012-08-04 10:38
好高深
wmh1985 2012-08-06 21:23
楼主 太强大了  能不能讲的 系统一些了 1MP~dRZ$  
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   Sxt"B  
Mode                : Sensitivities o8V5w!+#  
Sam .. (2011-06-23 09:38)  `quw9j9`C\  
>\-hO&%_  
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 -mbt4w  
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