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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 FQ%mNowuj  
LNkyV*TI  
[attachment=34427] L%FL{G  
cht#~d  
然后添加了默认公差分析，基本没变 yhaYlYv[_3  
<X?F :?Mk  
[attachment=34428] e=2D^ G#qE  
. +>}},  
然后运行分析的结果如下： @^O ww(I  
00i9yC8@6  
Analysis of Tolerances )c/] 8KU  
(yfTkBy  
File : E:\光学设计资料\zemax练习\f500.ZMX ry'(m M  
Title: 2xX7dl(cC  
Date : TUE JUN 21 2011 J}JnJV8|G  
gA6C(##0  
Units are Millimeters. t(Uoi~#[  
All changes are computed using linear differences. o&]qjFo\m  
YdFCYSiS  
Paraxial Focus compensation only. Ot?rsr  
x?3p3[y  
WARNING: Solves should be removed prior to tolerancing. nV,a|V5Xm  
<\5{R@A*6  
Mnemonics: pPE4~g 05h  
TFRN: Tolerance on curvature in fringes. DCj!m<Y&  
TTHI: Tolerance on thickness. ?V0IryF;  
TSDX: Tolerance on surface decentering in x. 4t":WutC  
TSDY: Tolerance on surface decentering in y. M0|z^2  
TSTX: Tolerance on surface tilt in x (degrees). sdb#K?l  
TSTY: Tolerance on surface tilt in y (degrees). r* U6govky  
TIRR: Tolerance on irregularity (fringes). 1n^xVk-G  
TIND: Tolerance on Nd index of refraction. 8L:0Wp  
TEDX: Tolerance on element decentering in x. B-RaAiE@  
TEDY: Tolerance on element decentering in y. [lf[J&}X  
TETX: Tolerance on element tilt in x (degrees). TtzB[F  
TETY: Tolerance on element tilt in y (degrees). % :NI@59  
/O9z-!Jz  
WARNING: RAY AIMING IS OFF. Very loose tolerances may not be computed accurately. WDcjj1`l  
uB\A8zC  
WARNING: Boundary constraints on compensators will be ignored. ]]+"`t,-  
j9%=^ZoQj  
Criterion           : Geometric MTF average S&T at 30.0000 cycles per mm Y9ru~&/o$  
Mode                : Sensitivities %NvY~,  
Sampling            : 2 oZQu&O'  
Nominal Criterion   : 0.54403234 C[75 !F   
Test Wavelength     : 0.6328 um/iK}O  
\QVL%,.%M  
GE|V^_|i  
Fields: XY Symmetric Angle in degrees [L:,A{rve  
#      X-Field      Y-Field       Weight    VDX    VDY    VCX    VCY 4oJ0,u  
1   0.000E+000   0.000E+000   1.000E+000  0.000  0.000  0.000  0.000 KcHW>IBxdv  
]`LMy t0  
Sensitivity Analysis: -Wf 2m6t  
8< R#}  
                 |----------------- Minimum ----------------| |----------------- Maximum ----------------| Gx!Y 4Q}-  
Type                      Value      Criterion        Change          Value      Criterion        Change WmeV[iI  
Fringe tolerance on surface 1 uZCPxog  
TFRN   1            -1.00000000     0.54257256    -0.00145977     1.00000000     0.54548607     0.00145374 ZjWI~"]  
Change in Focus                :      -0.000000                            0.000000 _G@)Bj^*  
Fringe tolerance on surface 2 :M3Fq@w=  
TFRN   2            -1.00000000     0.54177471    -0.00225762     1.00000000     0.54627463     0.00224230 `j9 ;9^  
Change in Focus                :       0.000000                            0.000000 Q/I/>6M7UZ  
Fringe tolerance on surface 3 NSZ9M%7  
TFRN   3            -1.00000000     0.54779866     0.00376632     1.00000000     0.54022572    -0.00380662 F8nR.|  
Change in Focus                :      -0.000000                            0.000000 m;'ebkq  
Thickness tolerance on surface 1 voiWf?X  
TTHI   1   3        -0.20000000     0.54321462    -0.00081772     0.20000000     0.54484759     0.00081525 RGsgT^  
Change in Focus                :       0.000000                            0.000000 FG/1!8F  
Thickness tolerance on surface 2 y2KR^/LN|Y  
TTHI   2   3        -0.20000000     0.54478712     0.00075478     0.20000000     0.54327558    -0.00075675 ,?S1e#  
Change in Focus                :       0.000000                           -0.000000 3%P<F>6 J  
Decenter X tolerance on surfaces 1 through 3 6o6I]QL  
TEDX   1   3        -0.20000000     0.54401464   -1.7700E-005     0.20000000     0.54401464   -1.7700E-005 4}`z^P<C  
Change in Focus                :       0.000000                            0.000000 %py3fzg  
Decenter Y tolerance on surfaces 1 through 3 7_HFQT1.N  
TEDY   1   3        -0.20000000     0.54401464   -1.7700E-005     0.20000000     0.54401464   -1.7700E-005 =bgWUu\F  
Change in Focus                :       0.000000                            0.000000 9(6f:D  
Tilt X tolerance on surfaces 1 through 3 (degrees) pLSh +*F  
TETX   1   3        -0.20000000     0.54897548     0.00494314     0.20000000     0.54897548     0.00494314 @q]4]U)  
Change in Focus                :       0.000000                            0.000000 0fu*}v"  
Tilt Y tolerance on surfaces 1 through 3 (degrees) 42M_  %l_  
TETY   1   3        -0.20000000     0.54897548     0.00494314     0.20000000     0.54897548     0.00494314 *+(rQ";x  
Change in Focus                :       0.000000                            0.000000 =U'!<w<-  
Decenter X tolerance on surface 1 S#kYPe  
TSDX   1            -0.20000000     0.53999563    -0.00403671     0.20000000     0.53999563    -0.00403671 K @RGvP  
Change in Focus                :       0.000000                            0.000000 (@m/j2z  
Decenter Y tolerance on surface 1 PzOnS   
TSDY   1            -0.20000000     0.53999563    -0.00403671     0.20000000     0.53999563    -0.00403671 >v2/0>U  
Change in Focus                :       0.000000                            0.000000 _iu~vU)r  
Tilt X tolerance on surface (degrees) 1 `*6|2  
TSTX   1            -0.20000000     0.42678383    -0.11724851     0.20000000     0.42678383    -0.11724851 bmu]zJ  
Change in Focus                :       0.000000                            0.000000 eSQkW  
Tilt Y tolerance on surface (degrees) 1 k3K*{"z  
TSTY   1            -0.20000000     0.42678383    -0.11724851     0.20000000     0.42678383    -0.11724851  & .0A%  
Change in Focus                :       0.000000                            0.000000 `WIZY33V  
Decenter X tolerance on surface 2 Ge_fU'F  
TSDX   2            -0.20000000     0.51705427    -0.02697807     0.20000000     0.51705427    -0.02697807 ~m_{&,CA.  
Change in Focus                :       0.000000                            0.000000 l^Ob60)2  
Decenter Y tolerance on surface 2 hr;^.a^  
TSDY   2            -0.20000000     0.51705427    -0.02697807     0.20000000     0.51705427    -0.02697807 Z#.1p'3qm1  
Change in Focus                :       0.000000                            0.000000 L&c & <+0T  
Tilt X tolerance on surface (degrees) 2 ugNt7P,^  
TSTX   2            -0.20000000     0.35349910    -0.19053324     0.20000000     0.35349910    -0.19053324 BBM[Fy37!}  
Change in Focus                :       0.000000                            0.000000 VwpC UW  
Tilt Y tolerance on surface (degrees) 2 MA,*$BgZ  
TSTY   2            -0.20000000     0.35349910    -0.19053324     0.20000000     0.35349910    -0.19053324 O 2-n-  
Change in Focus                :       0.000000                            0.000000 G<M0KU (  
Decenter X tolerance on surface 3 d\uN  
TSDX   3            -0.20000000     0.53419039    -0.00984195     0.20000000     0.53419039    -0.00984195 c ef[T(>  
Change in Focus                :       0.000000                            0.000000 'y\Je7  
Decenter Y tolerance on surface 3 S=ZZ[E_~S  
TSDY   3            -0.20000000     0.53419039    -0.00984195     0.20000000     0.53419039    -0.00984195 f[1cN`|z  
Change in Focus                :       0.000000                            0.000000 K fD. J)  
Tilt X tolerance on surface (degrees) 3 & ?xR  
TSTX   3            -0.20000000     0.42861670    -0.11541563     0.20000000     0.42861670    -0.11541563 A+="0{P  
Change in Focus                :       0.000000                            0.000000 a;t}'GQGk  
Tilt Y tolerance on surface (degrees) 3 yI 2UmhA  
TSTY   3            -0.20000000     0.42861670    -0.11541563     0.20000000     0.42861670    -0.11541563 Vx(*OQ  
Change in Focus                :       0.000000                            0.000000 @>HTbs6W  
Irregularity of surface 1 in fringes tGgxID  
TIRR   1            -0.20000000     0.50973587    -0.03429647     0.20000000     0.57333868     0.02930634 (oi:lC@h*  
Change in Focus                :       0.000000                            0.000000 W w,\s5Uw  
Irregularity of surface 2 in fringes '|DW#l\n  
TIRR   2            -0.20000000     0.53400904    -0.01002330     0.20000000     0.55360281     0.00957047 !gve]>M  
Change in Focus                :       0.000000                            0.000000 ux<|8S  
Irregularity of surface 3 in fringes EY)2,  
TIRR   3            -0.20000000     0.58078982     0.03675748     0.20000000     0.49904394    -0.04498840 f^FFn32u  
Change in Focus                :       0.000000                            0.000000 8cG?p  
Index tolerance on surface 1 rW)h ? , b  
TIND   1            -0.00100000     0.52606778    -0.01796456     0.00100000     0.56121811     0.01718578 m<h%BDSzr{  
Change in Focus                :       0.000000                            0.000000 Wd:pqhLh  
Index tolerance on surface 2 i)?7+<X  
TIND   2            -0.00100000     0.55639086     0.01235852     0.00100000     0.53126361    -0.01276872 eR$@Q  
Change in Focus                :       0.000000                           -0.000000 5tYo! f  
KLyRb0V  
Worst offenders: inWLIXC,  
Type                      Value      Criterion        Change V`y^m@U!  
TSTY   2            -0.20000000     0.35349910    -0.19053324 ,AP0*Ln  
TSTY   2             0.20000000     0.35349910    -0.19053324 e$J>z {  
TSTX   2            -0.20000000     0.35349910    -0.19053324 krUtOVI  
TSTX   2             0.20000000     0.35349910    -0.19053324 1Cw]~jh  
TSTY   1            -0.20000000     0.42678383    -0.11724851 /'sv7hg+  
TSTY   1             0.20000000     0.42678383    -0.11724851 ,^:{!?v  
TSTX   1            -0.20000000     0.42678383    -0.11724851 8zp?WUb  
TSTX   1             0.20000000     0.42678383    -0.11724851 l~i?  
TSTY   3            -0.20000000     0.42861670    -0.11541563 7*l$ i/!  
TSTY   3             0.20000000     0.42861670    -0.11541563 ev4[4T-( @  
50cVS)hG6d  
Estimated Performance Changes based upon Root-Sum-Square method: :W.H#@'(  
Nominal MTF                 :     0.54403234 wZ(1\ M(  
Estimated change            :    -0.36299231 &t= :xVn-M  
Estimated MTF               :     0.18104003 duaF?\vv  
F7DA~G!  
Compensator Statistics: C%z)D1-  
Change in back focus: ?2]fE[SqY  
Minimum            :        -0.000000 ^Hx}.?1  
Maximum            :         0.000000 }J#HIE\RG  
Mean               :        -0.000000 EtcT:k?y  
Standard Deviation :         0.000000 7kLu rv  
,Kv6!ib6Q  
Monte Carlo Analysis: 1#vu)a1+b  
Number of trials: 20 G"/;Cq=t  
Z>g72I%X  
Initial Statistics: Normal Distribution >V"{]v  
~O}r<PQ  
  Trial       Criterion        Change `i`P}W!F  
      1     0.42804416    -0.11598818 jj{:=l ZB  
Change in Focus                :      -0.400171 tK3$,9+  
      2     0.54384387    -0.00018847 HxO+JI`'3  
Change in Focus                :       1.018470  .\oz  
      3     0.44510003    -0.09893230 2XR!2_)O5  
Change in Focus                :      -0.601922 Ae2N"%Ej  
      4     0.18154684    -0.36248550 Vh0cac|X  
Change in Focus                :       0.920681 1)~|{X+~  
      5     0.28665820    -0.25737414 *$9U/  d  
Change in Focus                :       1.253875 n*[ZS[I  
      6     0.21263372    -0.33139862 /we]i1-9  
Change in Focus                :      -0.903878 .rBU"Rbo  
      7     0.40051424    -0.14351809 2bCfY\k  
Change in Focus                :      -1.354815 @fA{;@N  
      8     0.48754161    -0.05649072 ;MQl.?vj  
Change in Focus                :       0.215922 /4+L2O[  
      9     0.40357468    -0.14045766 H^'%$F?Ss  
Change in Focus                :       0.281783 6$OmOCA%  
     10     0.26315315    -0.28087919 E:qh}wY  
Change in Focus                :      -1.048393 y{M7kYWtHV  
     11     0.26120585    -0.28282649 VP!4Nob  
Change in Focus                :       1.017611 "`;-5dg  
     12     0.24033815    -0.30369419 q]1p Q)\'p  
Change in Focus                :      -0.109292 |dxWO  
     13     0.37164046    -0.17239188 f%PLR9Nh5@  
Change in Focus                :      -0.692430 >,Y+ 1  
     14     0.48597489    -0.05805744 +tk`$g  
Change in Focus                :      -0.662040  dw;<Q  
     15     0.21462327    -0.32940907 6Gg`ExcT5  
Change in Focus                :       1.611296 jOCV)V9}  
     16     0.43378226    -0.11025008 ;%0kzIvP  
Change in Focus                :      -0.640081 v#gXXO[P1  
     17     0.39321881    -0.15081353 sPc}hG+N  
Change in Focus                :       0.914906 ?<F([(  
     18     0.20692530    -0.33710703 z 8M\(<  
Change in Focus                :       0.801607 8Vz!zYl  
     19     0.51374068    -0.03029165 0e&&k  
Change in Focus                :       0.947293 VsTgK  
     20     0.38013374    -0.16389860 &bq1n_  
Change in Focus                :       0.667010 khjdTq\\  
p5qfv>E8)  
Number of traceable Monte Carlo files generated: 20 8D>5(Dg-  
V5-!w0{  
Nominal     0.54403234 N?t*4Y  
Best        0.54384387    Trial     2 7Cp /{l;d  
Worst       0.18154684    Trial     4 s#<fj#S  
Mean        0.35770970 J0vQqTaT  
Std Dev     0.11156454 X2I_,k'fQ  
$@kOMT  
x~uDCbL  
Compensator Statistics: S]=.p-Am  
Change in back focus: _QHk&-Lp  
Minimum            :        -1.354815 U]+IP;YS  
Maximum            :         1.611296 cQxUEY('+  
Mean               :         0.161872 y$nI?:d  
Standard Deviation :         0.869664 O Lt0Q.{  
)2wf D  
90% >       0.20977951               4Th?q{X  
80% >       0.22748071               c2Z !Vtd  
50% >       0.38667627               F5+F O^3E  
20% >       0.46553746               b3_P??yp  
10% >       0.50064115                %m/lPL  
&b^_~hB:q  
End of Run. |AE{rvP{@  
2gklGDJD  
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 "0nsYE  
[attachment=34429] 2o9B >f&g  
ceJ#>Rj  
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 EKcPJ\7  
ID`C  
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                 T=~d. &J  
80% >       0.22748071                 P 0+@,kM  
50% >       0.38667627                 VHqoa>U,*  
20% >       0.46553746                 {Mb<on W  
10% >       0.50064115 {E(2.'d  
A p?,y?  
最后这个数值是MTF值呢，还是MTF的公差？  WvF{`N  
uUx7>algF  
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？？？   ~.G$0IJY  
'l!\2Wv2  
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  : k:~UBs\)(  
90% >       0.20977951                 n2AoEbd  
80% >       0.22748071                 HES$. a  
50% >       0.38667627                 <=%[.. (S  
20% >       0.46553746                 7yg {0a  
10% >       0.50064115 U{l f$  
....... +U,t*U4,  
&e).l<B  
? B|i  
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   ^_G#JJ\@$  
Mode                : Sensitivities qx >Z@o  
Sampling            : 2 GpXf).a@  
Nominal Criterion   : 0.54403234 d^IX(y*$  
Test Wavelength     : 0.6328 +YCWoX 2  
e>!]_B1ad  
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？ ' t(#HBU  
'5T:*Yh  
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 VjiwW%UOM  
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   *iVv(xXgN  
Mode                : Sensitivities YD;"_yH  
Sam .. (2011-06-23 09:38)  e[.JS6  
n!?u/[@  
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 |s*tRag  
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