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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 RCt)qh+  
Fm}O,=  
[attachment=34427] xsRMF&8L  
Pyi PhOJe  
然后添加了默认公差分析，基本没变 ZLvw]N&R  
'$)Wp_  
[attachment=34428] +!POKr  
rOY^w9!  
然后运行分析的结果如下： %9mCgHQ9  
'D(Hqdr;:  
Analysis of Tolerances 7kn=j6I  
\Y9=d E}  
File : E:\光学设计资料\zemax练习\f500.ZMX &3{:h  
Title: P7\(D`  
Date : TUE JUN 21 2011 mUy/lo'4  
@6*<Xs =  
Units are Millimeters. iy tSC  
All changes are computed using linear differences. r"fu{4aX  
:yT~.AK}>1  
Paraxial Focus compensation only.  1 ,PFz  
mQ%kGqs  
WARNING: Solves should be removed prior to tolerancing. (Xq eX(s  
3|:uIoR{  
Mnemonics: l O, 2  
TFRN: Tolerance on curvature in fringes. \)BKuIP  
TTHI: Tolerance on thickness. q){]fp.,@  
TSDX: Tolerance on surface decentering in x. !^axO  
TSDY: Tolerance on surface decentering in y. l^`!:BOtR  
TSTX: Tolerance on surface tilt in x (degrees). Q,\lS  
TSTY: Tolerance on surface tilt in y (degrees). -I=}SZ  
TIRR: Tolerance on irregularity (fringes). `?JrC3  
TIND: Tolerance on Nd index of refraction. 3UC8iq*  
TEDX: Tolerance on element decentering in x. >^J!Z~;L)  
TEDY: Tolerance on element decentering in y. x6DH0*[.  
TETX: Tolerance on element tilt in x (degrees). 6%S>~L66  
TETY: Tolerance on element tilt in y (degrees). \f66ipZK*  
bf;IJ|v^  
WARNING: RAY AIMING IS OFF. Very loose tolerances may not be computed accurately. ^J% w[FE  
SgXXitg9+  
WARNING: Boundary constraints on compensators will be ignored. M~662]Ekk  
?7&VT1  
Criterion           : Geometric MTF average S&T at 30.0000 cycles per mm '&<-,1^L  
Mode                : Sensitivities &I(|aZx?J  
Sampling            : 2 Kg]( kP  
Nominal Criterion   : 0.54403234 R:.7 c(s  
Test Wavelength     : 0.6328 /@#)j( eY/  
.j&jf^a5  
RM<\bZPc  
Fields: XY Symmetric Angle in degrees [/#n+sz.A  
#      X-Field      Y-Field       Weight    VDX    VDY    VCX    VCY aRG[F*BY  
1   0.000E+000   0.000E+000   1.000E+000  0.000  0.000  0.000  0.000 !d(!1fC  
RTl7vzG  
Sensitivity Analysis: _)Qt,$  
+H<%)Lk J  
                 |----------------- Minimum ----------------| |----------------- Maximum ----------------| [2\`Wh:%P  
Type                      Value      Criterion        Change          Value      Criterion        Change T@Q<oNU  
Fringe tolerance on surface 1 :m$%D]WY  
TFRN   1            -1.00000000     0.54257256    -0.00145977     1.00000000     0.54548607     0.00145374 k6Tpaf^  
Change in Focus                :      -0.000000                            0.000000 [\.>BK  
Fringe tolerance on surface 2  %ANPv=  
TFRN   2            -1.00000000     0.54177471    -0.00225762     1.00000000     0.54627463     0.00224230 h,p&/oU4U  
Change in Focus                :       0.000000                            0.000000 ^cAJCbp7  
Fringe tolerance on surface 3 oNCDG|8z  
TFRN   3            -1.00000000     0.54779866     0.00376632     1.00000000     0.54022572    -0.00380662 shn-Es*  
Change in Focus                :      -0.000000                            0.000000 (u'/tNGS  
Thickness tolerance on surface 1 (/KF;J^M  
TTHI   1   3        -0.20000000     0.54321462    -0.00081772     0.20000000     0.54484759     0.00081525 mMjVbeh[  
Change in Focus                :       0.000000                            0.000000 }E1Eq  
Thickness tolerance on surface 2 v'@LuF'e8  
TTHI   2   3        -0.20000000     0.54478712     0.00075478     0.20000000     0.54327558    -0.00075675 9Akwr}  
Change in Focus                :       0.000000                           -0.000000 YJL=|v  
Decenter X tolerance on surfaces 1 through 3 AMm O+E?  
TEDX   1   3        -0.20000000     0.54401464   -1.7700E-005     0.20000000     0.54401464   -1.7700E-005 & {/ u>,  
Change in Focus                :       0.000000                            0.000000 O0{v`|w9+  
Decenter Y tolerance on surfaces 1 through 3 <1LuYEDq  
TEDY   1   3        -0.20000000     0.54401464   -1.7700E-005     0.20000000     0.54401464   -1.7700E-005 :YI>AaYWDO  
Change in Focus                :       0.000000                            0.000000 ,pG63&?j  
Tilt X tolerance on surfaces 1 through 3 (degrees) z`2d(KE?  
TETX   1   3        -0.20000000     0.54897548     0.00494314     0.20000000     0.54897548     0.00494314 CKR9APkv  
Change in Focus                :       0.000000                            0.000000 AdYQhF##  
Tilt Y tolerance on surfaces 1 through 3 (degrees) :|A db\b  
TETY   1   3        -0.20000000     0.54897548     0.00494314     0.20000000     0.54897548     0.00494314 {r}}X@|5  
Change in Focus                :       0.000000                            0.000000 o{Ep/O`  
Decenter X tolerance on surface 1 $ta#] >{  
TSDX   1            -0.20000000     0.53999563    -0.00403671     0.20000000     0.53999563    -0.00403671 ge?ymaU$a  
Change in Focus                :       0.000000                            0.000000 ]s S oIT  
Decenter Y tolerance on surface 1 j,-7J*A~  
TSDY   1            -0.20000000     0.53999563    -0.00403671     0.20000000     0.53999563    -0.00403671 E<4}mSn)  
Change in Focus                :       0.000000                            0.000000 0z xeA +U  
Tilt X tolerance on surface (degrees) 1 [*<&]^  
TSTX   1            -0.20000000     0.42678383    -0.11724851     0.20000000     0.42678383    -0.11724851 >k jJq]A2  
Change in Focus                :       0.000000                            0.000000 {p\KB!Y-  
Tilt Y tolerance on surface (degrees) 1 t8+93,*B  
TSTY   1            -0.20000000     0.42678383    -0.11724851     0.20000000     0.42678383    -0.11724851 Smu x&e  
Change in Focus                :       0.000000                            0.000000 +~v(*s C  
Decenter X tolerance on surface 2 yLX#: nm  
TSDX   2            -0.20000000     0.51705427    -0.02697807     0.20000000     0.51705427    -0.02697807 Yt'o#"R)  
Change in Focus                :       0.000000                            0.000000 O:x%!-w  
Decenter Y tolerance on surface 2 4>HGwk@+8  
TSDY   2            -0.20000000     0.51705427    -0.02697807     0.20000000     0.51705427    -0.02697807 wz#n$W3mGf  
Change in Focus                :       0.000000                            0.000000 6};oLnO  
Tilt X tolerance on surface (degrees) 2 ]mh+4k?b  
TSTX   2            -0.20000000     0.35349910    -0.19053324     0.20000000     0.35349910    -0.19053324 l{AT)1;^  
Change in Focus                :       0.000000                            0.000000 ?n+\T'f!  
Tilt Y tolerance on surface (degrees) 2 6;*(6$;  
TSTY   2            -0.20000000     0.35349910    -0.19053324     0.20000000     0.35349910    -0.19053324 LN^8U  
Change in Focus                :       0.000000                            0.000000 %G&v@R  
Decenter X tolerance on surface 3 F&~vD  
TSDX   3            -0.20000000     0.53419039    -0.00984195     0.20000000     0.53419039    -0.00984195 *X-$* ~J0  
Change in Focus                :       0.000000                            0.000000 )1,&YJM*6l  
Decenter Y tolerance on surface 3 `!8Z"xD  
TSDY   3            -0.20000000     0.53419039    -0.00984195     0.20000000     0.53419039    -0.00984195 /{va<CL  
Change in Focus                :       0.000000                            0.000000 rY= #^S  
Tilt X tolerance on surface (degrees) 3 3Cl9,Z"&6$  
TSTX   3            -0.20000000     0.42861670    -0.11541563     0.20000000     0.42861670    -0.11541563 5=986ci$U  
Change in Focus                :       0.000000                            0.000000 u\wd<<I']  
Tilt Y tolerance on surface (degrees) 3 OXB-.<  
TSTY   3            -0.20000000     0.42861670    -0.11541563     0.20000000     0.42861670    -0.11541563 jayoARUB  
Change in Focus                :       0.000000                            0.000000 8IH gsW";  
Irregularity of surface 1 in fringes g1|c?#fwo  
TIRR   1            -0.20000000     0.50973587    -0.03429647     0.20000000     0.57333868     0.02930634 -tdG} Gu  
Change in Focus                :       0.000000                            0.000000 co80M;4  
Irregularity of surface 2 in fringes k N+(  
TIRR   2            -0.20000000     0.53400904    -0.01002330     0.20000000     0.55360281     0.00957047 ;p ('cwU%  
Change in Focus                :       0.000000                            0.000000 ZM?r1Z4  
Irregularity of surface 3 in fringes (ce NVo&  
TIRR   3            -0.20000000     0.58078982     0.03675748     0.20000000     0.49904394    -0.04498840 H/&Q,9sU21  
Change in Focus                :       0.000000                            0.000000 -EaZ<d[|0  
Index tolerance on surface 1 dFFqs&cQ  
TIND   1            -0.00100000     0.52606778    -0.01796456     0.00100000     0.56121811     0.01718578 U'G`Q0n  
Change in Focus                :       0.000000                            0.000000 ]IV; >94[  
Index tolerance on surface 2 ;gnr\C*G  
TIND   2            -0.00100000     0.55639086     0.01235852     0.00100000     0.53126361    -0.01276872 LH;G :  
Change in Focus                :       0.000000                           -0.000000 -c@ 5qe>  
Qg!*=<b  
Worst offenders: J.l%H U  
Type                      Value      Criterion        Change %5gJ6>@6Z  
TSTY   2            -0.20000000     0.35349910    -0.19053324 B_2>Yt"  
TSTY   2             0.20000000     0.35349910    -0.19053324 L#Y;a 5b  
TSTX   2            -0.20000000     0.35349910    -0.19053324 yFo5pKF.J  
TSTX   2             0.20000000     0.35349910    -0.19053324 PEIr-qs%D  
TSTY   1            -0.20000000     0.42678383    -0.11724851 %#a%Luq  
TSTY   1             0.20000000     0.42678383    -0.11724851 '=.Uz3D'0  
TSTX   1            -0.20000000     0.42678383    -0.11724851 [#Vr)\n  
TSTX   1             0.20000000     0.42678383    -0.11724851 \k_3IP?o=  
TSTY   3            -0.20000000     0.42861670    -0.11541563 *Mc\7D  
TSTY   3             0.20000000     0.42861670    -0.11541563 OvG0UXRU  
%U7f9  
Estimated Performance Changes based upon Root-Sum-Square method: x?'%  
Nominal MTF                 :     0.54403234 pe})A  
Estimated change            :    -0.36299231 mU$7_7V~  
Estimated MTF               :     0.18104003 qEr[fC@x  
x^2/jUc#B  
Compensator Statistics: 7F:;3c  
Change in back focus: )d u{ZWr  
Minimum            :        -0.000000 Ue:T3jp 3%  
Maximum            :         0.000000 B31-<w  
Mean               :        -0.000000 &X,)+ b=  
Standard Deviation :         0.000000 zEfD{I  
~|C1$.-  
Monte Carlo Analysis: D  .R  
Number of trials: 20 |qDfFGYf  
#!,`EU  
Initial Statistics: Normal Distribution guXpHF=  
{Y%=/ba W  
  Trial       Criterion        Change Bqlc+d:  
      1     0.42804416    -0.11598818 F$ p*G][  
Change in Focus                :      -0.400171 >%dAqYi $  
      2     0.54384387    -0.00018847 m (:qZW  
Change in Focus                :       1.018470 K0=E4>z,`q  
      3     0.44510003    -0.09893230 wLe&y4  
Change in Focus                :      -0.601922 e*6` dz@  
      4     0.18154684    -0.36248550 R6mJFE*6T9  
Change in Focus                :       0.920681 C*e[CP@u  
      5     0.28665820    -0.25737414 `f+g A  
Change in Focus                :       1.253875 Y'0?<_ fj  
      6     0.21263372    -0.33139862 3#9r4;&  
Change in Focus                :      -0.903878 Bl\kU8O-  
      7     0.40051424    -0.14351809 aB6LAb2z;T  
Change in Focus                :      -1.354815 [<a%\:c m4  
      8     0.48754161    -0.05649072 @b\_696.  
Change in Focus                :       0.215922 E(+wl  
      9     0.40357468    -0.14045766 w!w _`7[  
Change in Focus                :       0.281783 T8TsKjqOZ  
     10     0.26315315    -0.28087919 (G%gVk]  
Change in Focus                :      -1.048393 D K_v{R  
     11     0.26120585    -0.28282649 :wmf{c  
Change in Focus                :       1.017611 ]m#MwN$  
     12     0.24033815    -0.30369419  ^-*Tn  
Change in Focus                :      -0.109292 xWe1F2nY  
     13     0.37164046    -0.17239188 V^/^OR4k  
Change in Focus                :      -0.692430 )TG0m= *  
     14     0.48597489    -0.05805744 x&oBO{LNK,  
Change in Focus                :      -0.662040 MXJ9,U{<C'  
     15     0.21462327    -0.32940907 AaC1 ||?R  
Change in Focus                :       1.611296  Is6 _  
     16     0.43378226    -0.11025008 maEpT43f  
Change in Focus                :      -0.640081 3=|2Gs?ut  
     17     0.39321881    -0.15081353 }\L !;6oy  
Change in Focus                :       0.914906 a{Hb7&  
     18     0.20692530    -0.33710703 JP,(4h *  
Change in Focus                :       0.801607  53*, f  
     19     0.51374068    -0.03029165 15T[J%7f  
Change in Focus                :       0.947293 N z3%}6F:  
     20     0.38013374    -0.16389860 o``>sBZOq  
Change in Focus                :       0.667010 ,!%R5*?=D  
|-Esc|J(  
Number of traceable Monte Carlo files generated: 20 AD%D ,l  
~TFYlV  
Nominal     0.54403234 #Q7x:,f  
Best        0.54384387    Trial     2 B"Kce"!  
Worst       0.18154684    Trial     4 KP d C9H  
Mean        0.35770970 pvQK6r  
Std Dev     0.11156454 l(w vQO  
.A!0.M|  
!a&SB*%^I3  
Compensator Statistics: $EGRaps{j>  
Change in back focus: T\ }v$A03  
Minimum            :        -1.354815 QT= ,En  
Maximum            :         1.611296 ]v\egfW,W  
Mean               :         0.161872 46P6Bwobh  
Standard Deviation :         0.869664 i|]Va44  
b'oGt,  
90% >       0.20977951               oYh<k  
80% >       0.22748071               3AQ>>)T~  
50% >       0.38667627               V>jhGf  
20% >       0.46553746               8u'O` j  
10% >       0.50064115                6^IqSNn-  
X})Imk7&E  
End of Run. MjXE|3&  
jy(+ 0F  
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 ,Lun-aMd  
[attachment=34429] Z-h7  
N>pmhskN?  
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 d1TdH s\  
u|OzW}xb7j  
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                 }\u%)uZ  
80% >       0.22748071                 Vl 19Md  
50% >       0.38667627                 6snOMa GRu  
20% >       0.46553746                 {s8U7rmML  
10% >       0.50064115 puS&S *  
3 IWLBc  
最后这个数值是MTF值呢，还是MTF的公差？ Yb%-tv:  
"o{)X@YN]  
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？？？   ^K.u ~p   
=%3b@}%HqS  
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  : pd4cg?K  
90% >       0.20977951                 ' :\fl.b  
80% >       0.22748071                 <Zp^lDxa  
50% >       0.38667627                 L6:W'u^  
20% >       0.46553746                 i s L{9^  
10% >       0.50064115 S~0JoCeo  
....... X"[dQ_o  
E &7@#'l  
Mlv<r=E  
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   >1x7UXs~:  
Mode                : Sensitivities ch@x]@-;A3  
Sampling            : 2 JbE?a[Eg?  
Nominal Criterion   : 0.54403234 -<^jGrb  
Test Wavelength     : 0.6328 ~ww?Emrw  
^ <qrM  
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？ 'nRp}s1^[  
c 9rVgLqn!  
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<9" t  
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   L1wZU,o  
Mode                : Sensitivities Txo@ U  
Sam .. (2011-06-23 09:38)  u, eZ6  
lV\lj@  
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 02\JzBU  
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