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    [讨论]公差分析结果的疑问 [复制链接]

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    离线sansummer
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    只看楼主 倒序阅读 楼主  发表于: 2011-06-21
    我现在在初学zemax的公差分析，找了一个双胶合透镜 )RgGcHT@  
    @@G6p($  
    xGk6n4Gg  
    $tqJ/:I  
    然后添加了默认公差分析，基本没变 |OO in]5  
    DL^o_61  
    k;W@LfP  
    nuQ]8 -,  
    然后运行分析的结果如下： 68fiG  
    Hy:V`>  
    Analysis of Tolerances &C<yfRDu  
    5Z/7kU= I  
    File : E:\光学设计资料\zemax练习\f500.ZMX q/9H..6  
    Title: ,i9Byx#TN  
    Date : TUE JUN 21 2011 Z4K+ /<I  
    @&F@I3`{  
    Units are Millimeters. iRo.RU8>  
    All changes are computed using linear differences. h"mi"H^o  
    @oP_;G  
    Paraxial Focus compensation only.  D1 Z{W  
    Oc].@Jy  
    WARNING: Solves should be removed prior to tolerancing. IA zZ1#/3  
    2| iV,uJ&  
    Mnemonics: X r63?N  
    TFRN: Tolerance on curvature in fringes. aVs(EHF  
    TTHI: Tolerance on thickness. RprKm'b8x`  
    TSDX: Tolerance on surface decentering in x. Xl7aGlH  
    TSDY: Tolerance on surface decentering in y. ^g1f X1  
    TSTX: Tolerance on surface tilt in x (degrees). ocbB&  
    TSTY: Tolerance on surface tilt in y (degrees). ZIR0PQh\  
    TIRR: Tolerance on irregularity (fringes). $3T_ .  
    TIND: Tolerance on Nd index of refraction. ^$>XW\yCs  
    TEDX: Tolerance on element decentering in x. @!N-RQ&A  
    TEDY: Tolerance on element decentering in y. }TQ{`a@  
    TETX: Tolerance on element tilt in x (degrees). Y}*\[}l:&x  
    TETY: Tolerance on element tilt in y (degrees). U6ZR->:  
    l ASL8O&\  
    WARNING: RAY AIMING IS OFF. Very loose tolerances may not be computed accurately. N]EcEM#  
    [S]S^ej*8  
    WARNING: Boundary constraints on compensators will be ignored. thi1kJ`L  
    |'ln?D:&  
    Criterion           : Geometric MTF average S&T at 30.0000 cycles per mm >>b3ZE|5  
    Mode                : Sensitivities 54;J8XT7  
    Sampling            : 2 fA%z*\  
    Nominal Criterion   : 0.54403234 F;ZSzWq  
    Test Wavelength     : 0.6328 b !@Sn/  
    ,Y?sfp  
    =o}"jVE  
    Fields: XY Symmetric Angle in degrees up3O|lj4  
    #      X-Field      Y-Field       Weight    VDX    VDY    VCX    VCY }eQRN<}P  
    1   0.000E+000   0.000E+000   1.000E+000  0.000  0.000  0.000  0.000 93qwH%  
    {CG_P,FO  
    Sensitivity Analysis: ,B(7\  
    5AS[\CB4  
                     |----------------- Minimum ----------------| |----------------- Maximum ----------------| 5 8-e^.  
    Type                      Value      Criterion        Change          Value      Criterion        Change n~V4nj&_T  
    Fringe tolerance on surface 1 87)zCq  
    TFRN   1            -1.00000000     0.54257256    -0.00145977     1.00000000     0.54548607     0.00145374 /yz=Cjoz  
    Change in Focus                :      -0.000000                            0.000000 {Sl57!U5  
    Fringe tolerance on surface 2 #*$P'r  
    TFRN   2            -1.00000000     0.54177471    -0.00225762     1.00000000     0.54627463     0.00224230 .?p\n7  
    Change in Focus                :       0.000000                            0.000000 Ok7t@l$  
    Fringe tolerance on surface 3 "LYh7:0s!k  
    TFRN   3            -1.00000000     0.54779866     0.00376632     1.00000000     0.54022572    -0.00380662 H.<a`m m8  
    Change in Focus                :      -0.000000                            0.000000 2$_9cF Wm  
    Thickness tolerance on surface 1 ?&LZB}1R  
    TTHI   1   3        -0.20000000     0.54321462    -0.00081772     0.20000000     0.54484759     0.00081525 )k&a}u5y  
    Change in Focus                :       0.000000                            0.000000 ;4M><OS!  
    Thickness tolerance on surface 2 ^_t%kmL`  
    TTHI   2   3        -0.20000000     0.54478712     0.00075478     0.20000000     0.54327558    -0.00075675 [%50/_h  
    Change in Focus                :       0.000000                           -0.000000 v%k9M{  
    Decenter X tolerance on surfaces 1 through 3 <^b7cOFQ  
    TEDX   1   3        -0.20000000     0.54401464   -1.7700E-005     0.20000000     0.54401464   -1.7700E-005 CycUeT  
    Change in Focus                :       0.000000                            0.000000 ""Zp:8o  
    Decenter Y tolerance on surfaces 1 through 3 +')f6P;t>=  
    TEDY   1   3        -0.20000000     0.54401464   -1.7700E-005     0.20000000     0.54401464   -1.7700E-005 Qu5UVjbE,  
    Change in Focus                :       0.000000                            0.000000 {e|*01hE  
    Tilt X tolerance on surfaces 1 through 3 (degrees) BR^7_q4q  
    TETX   1   3        -0.20000000     0.54897548     0.00494314     0.20000000     0.54897548     0.00494314 I)q,kP@yY  
    Change in Focus                :       0.000000                            0.000000 q#Zs\PD  
    Tilt Y tolerance on surfaces 1 through 3 (degrees) ihh4pD27g  
    TETY   1   3        -0.20000000     0.54897548     0.00494314     0.20000000     0.54897548     0.00494314 w{~+EolK  
    Change in Focus                :       0.000000                            0.000000 lf>*Y.!@me  
    Decenter X tolerance on surface 1 GU't%[  
    TSDX   1            -0.20000000     0.53999563    -0.00403671     0.20000000     0.53999563    -0.00403671 ] sz3]"2  
    Change in Focus                :       0.000000                            0.000000 kt[:@Nda9  
    Decenter Y tolerance on surface 1 xvzr:p P  
    TSDY   1            -0.20000000     0.53999563    -0.00403671     0.20000000     0.53999563    -0.00403671 Q6o(']0  
    Change in Focus                :       0.000000                            0.000000 E^GHVt/.  
    Tilt X tolerance on surface (degrees) 1 >@WX>0`ht  
    TSTX   1            -0.20000000     0.42678383    -0.11724851     0.20000000     0.42678383    -0.11724851 7&`}~$>}>e  
    Change in Focus                :       0.000000                            0.000000 I -Xlx<  
    Tilt Y tolerance on surface (degrees) 1 +jg9$e"  
    TSTY   1            -0.20000000     0.42678383    -0.11724851     0.20000000     0.42678383    -0.11724851 5Zmw} M  
    Change in Focus                :       0.000000                            0.000000 y@j,a  
    Decenter X tolerance on surface 2 OA:%lC!  
    TSDX   2            -0.20000000     0.51705427    -0.02697807     0.20000000     0.51705427    -0.02697807 nA|.t  
    Change in Focus                :       0.000000                            0.000000 M :3u@06a  
    Decenter Y tolerance on surface 2 hS[ yNwD  
    TSDY   2            -0.20000000     0.51705427    -0.02697807     0.20000000     0.51705427    -0.02697807 ) \Y7&  
    Change in Focus                :       0.000000                            0.000000 Xi?b]Z  
    Tilt X tolerance on surface (degrees) 2 uE[(cko  
    TSTX   2            -0.20000000     0.35349910    -0.19053324     0.20000000     0.35349910    -0.19053324 bifS 2>c  
    Change in Focus                :       0.000000                            0.000000 &U+ _ -Ph  
    Tilt Y tolerance on surface (degrees) 2 9Rm/V5  
    TSTY   2            -0.20000000     0.35349910    -0.19053324     0.20000000     0.35349910    -0.19053324 w ;daC(:  
    Change in Focus                :       0.000000                            0.000000 ZcuA6#3B  
    Decenter X tolerance on surface 3 th6+2&B6  
    TSDX   3            -0.20000000     0.53419039    -0.00984195     0.20000000     0.53419039    -0.00984195 ?u4INZ0W  
    Change in Focus                :       0.000000                            0.000000 7nbB^2  
    Decenter Y tolerance on surface 3 9Rek4<5  
    TSDY   3            -0.20000000     0.53419039    -0.00984195     0.20000000     0.53419039    -0.00984195 .nYUL>  
    Change in Focus                :       0.000000                            0.000000 awv De  
    Tilt X tolerance on surface (degrees) 3 ZKg{0DY  
    TSTX   3            -0.20000000     0.42861670    -0.11541563     0.20000000     0.42861670    -0.11541563 )s1Ib4C  
    Change in Focus                :       0.000000                            0.000000 ,uzN4_7u  
    Tilt Y tolerance on surface (degrees) 3 )CX4kPj  
    TSTY   3            -0.20000000     0.42861670    -0.11541563     0.20000000     0.42861670    -0.11541563 k{gLMl  
    Change in Focus                :       0.000000                            0.000000 _k^0m  
    Irregularity of surface 1 in fringes [4fU+D2\d  
    TIRR   1            -0.20000000     0.50973587    -0.03429647     0.20000000     0.57333868     0.02930634 yq+!czlZ  
    Change in Focus                :       0.000000                            0.000000 X1 ZgSs+i  
    Irregularity of surface 2 in fringes +A~\tK{  
    TIRR   2            -0.20000000     0.53400904    -0.01002330     0.20000000     0.55360281     0.00957047 3nY1[,  
    Change in Focus                :       0.000000                            0.000000 jBaB@LO9G  
    Irregularity of surface 3 in fringes 2F%W8Y 3  
    TIRR   3            -0.20000000     0.58078982     0.03675748     0.20000000     0.49904394    -0.04498840 Soie^$ Y  
    Change in Focus                :       0.000000                            0.000000 {lth+{&L#  
    Index tolerance on surface 1 DzQ1%!  
    TIND   1            -0.00100000     0.52606778    -0.01796456     0.00100000     0.56121811     0.01718578  0l;<5  
    Change in Focus                :       0.000000                            0.000000 T#pk]c6Q  
    Index tolerance on surface 2 B?$ "\;&  
    TIND   2            -0.00100000     0.55639086     0.01235852     0.00100000     0.53126361    -0.01276872 b3wM;jv  
    Change in Focus                :       0.000000                           -0.000000 0Z|FZGRP  
    FWH}j0Gj|  
    Worst offenders: ^m_yf|D$  
    Type                      Value      Criterion        Change lTU$0CG  
    TSTY   2            -0.20000000     0.35349910    -0.19053324 R),zl_d_  
    TSTY   2             0.20000000     0.35349910    -0.19053324 zqDR7+]  
    TSTX   2            -0.20000000     0.35349910    -0.19053324 RE.r4uOJg  
    TSTX   2             0.20000000     0.35349910    -0.19053324 c9R 5w.t:  
    TSTY   1            -0.20000000     0.42678383    -0.11724851 "P)*FT  
    TSTY   1             0.20000000     0.42678383    -0.11724851 \c[IbL07  
    TSTX   1            -0.20000000     0.42678383    -0.11724851 ]|_\xO(  
    TSTX   1             0.20000000     0.42678383    -0.11724851 CF|]e:  
    TSTY   3            -0.20000000     0.42861670    -0.11541563 tNVV)C  
    TSTY   3             0.20000000     0.42861670    -0.11541563 zrVC8Wb  
    ,G#.BLH cX  
    Estimated Performance Changes based upon Root-Sum-Square method: ?PTk1sB  
    Nominal MTF                 :     0.54403234 qyHZ M}/  
    Estimated change            :    -0.36299231 ?Qb<-~~ j1  
    Estimated MTF               :     0.18104003 p;?*}xa  
    3:%QB9qc]'  
    Compensator Statistics: LQnkcV  
    Change in back focus: bqanFQj  
    Minimum            :        -0.000000 #d{=\$=  
    Maximum            :         0.000000 iqnJ~g  
    Mean               :        -0.000000 %AOIKK5  
    Standard Deviation :         0.000000 `IYuz:  
    kj+#Tn F-  
    Monte Carlo Analysis: (;. AS  
    Number of trials: 20 KRJLxNr  
    8@NH%zWBp  
    Initial Statistics: Normal Distribution I ];M7  
    W4;m H}#0  
      Trial       Criterion        Change Y32O-I!9u  
          1     0.42804416    -0.11598818 "^I mb,  
    Change in Focus                :      -0.400171 k`".  
          2     0.54384387    -0.00018847 Gu=STb  
    Change in Focus                :       1.018470 ?j^=u:<  
          3     0.44510003    -0.09893230 M5T9JWbN  
    Change in Focus                :      -0.601922 F_xbwa*=  
          4     0.18154684    -0.36248550 "o& E2#  
    Change in Focus                :       0.920681 ,:+d g(\r  
          5     0.28665820    -0.25737414 E&yD8=vw  
    Change in Focus                :       1.253875 >pkT1Z&'  
          6     0.21263372    -0.33139862 74<!&t  
    Change in Focus                :      -0.903878 Khh0*S8.K  
          7     0.40051424    -0.14351809 |%~+2m  
    Change in Focus                :      -1.354815 EL3|u64GO  
          8     0.48754161    -0.05649072 Qr# 1u  
    Change in Focus                :       0.215922 *`( <'Z  
          9     0.40357468    -0.14045766 reo{*) %  
    Change in Focus                :       0.281783 o`khz{SU:  
         10     0.26315315    -0.28087919 *M7E#bQ5B  
    Change in Focus                :      -1.048393 ~f|Z%&l|  
         11     0.26120585    -0.28282649 7j5f ;O^+  
    Change in Focus                :       1.017611 E2GGEKrW  
         12     0.24033815    -0.30369419 X &2oPo  
    Change in Focus                :      -0.109292 hzI *{  
         13     0.37164046    -0.17239188 0oy-os  
    Change in Focus                :      -0.692430 *9ywXm&?  
         14     0.48597489    -0.05805744 x*oWa,  
    Change in Focus                :      -0.662040 ThW,Y" l  
         15     0.21462327    -0.32940907  2A4FaBq"  
    Change in Focus                :       1.611296 ~.PP30 '  
         16     0.43378226    -0.11025008 R E1 /"[t  
    Change in Focus                :      -0.640081 VC5_v62&.  
         17     0.39321881    -0.15081353 |L_wX:d`9  
    Change in Focus                :       0.914906 sqx` ">R  
         18     0.20692530    -0.33710703 2?Ye*-  
    Change in Focus                :       0.801607 5>9Y|UU  
         19     0.51374068    -0.03029165 DN4#H`  
    Change in Focus                :       0.947293 ,n2i@?NHZ  
         20     0.38013374    -0.16389860 0;,IKXK6X  
    Change in Focus                :       0.667010 dQy>Nmfy  
    H* !EP  
    Number of traceable Monte Carlo files generated: 20 57F%j3.|/  
    Uadr># C*  
    Nominal     0.54403234 9Qj2W  
    Best        0.54384387    Trial     2 gPS&^EdxA  
    Worst       0.18154684    Trial     4 `ir3YnT+  
    Mean        0.35770970 QD{:vG g  
    Std Dev     0.11156454 o/ [  
    l? #xAZx&_  
    -6Tk<W  
    Compensator Statistics: Vbh6HqAHxJ  
    Change in back focus: cIXwiC8t  
    Minimum            :        -1.354815 8 l/[(] &  
    Maximum            :         1.611296 %Qn(rA@9  
    Mean               :         0.161872 {5c]Mn"r  
    Standard Deviation :         0.869664 4^c- D  
    8:ggECD  
    90% >       0.20977951               ^=cXo<6D  
    80% >       0.22748071               ]O:M$ $  
    50% >       0.38667627               3L-^<'~-k;  
    20% >       0.46553746               Bz8 &R|~>"  
    10% >       0.50064115                rl:KJ\*D  
    4yMW^:@  
    End of Run. `=tyN@VC  
    oFg5aey4  
    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 :lcea6iO  
    TOl}U  
    x )5V.q  
    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 ~WVO  
    &UAe!{E0  
    不吝赐教
     
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    只看该作者 1楼 发表于: 2011-06-21
    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？
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    只看该作者 2楼 发表于: 2011-06-22
    90% >       0.20977951                 ,j9 80/  
    80% >       0.22748071                 Uf,fX/:!  
    50% >       0.38667627                 G^h_ YjR`*  
    20% >       0.46553746                 T@+ClZi  
    10% >       0.50064115 i1*C{Lf;%)  
    \&|CM8A  
    最后这个数值是MTF值呢，还是MTF的公差？ MB$a82bY  
    f>iuHR*EXB  
    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？？？   2PC5^Ni/9@  
    Vb6K:ZnF  
    怎么没人啊，大家讨论讨论吗
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    只看该作者 3楼 发表于: 2011-06-23
    没有人啊？？？
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    只看该作者 4楼 发表于: 2011-06-23
    引用第2楼sansummer于2011-06-22 08:56发表的  : NKh,z& _5-  
    90% >       0.20977951                 `i4I!E  
    80% >       0.22748071                 24|<<Xn  
    50% >       0.38667627                 ,?w!5N;iRO  
    20% >       0.46553746                 jEE_D +K  
    10% >       0.50064115 {d}26 $<$]  
    ....... Em9my2oE  
    A:xb!= 2  
    o}!&y?mp  
    这些数值都是MTF值
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    只看该作者 5楼 发表于: 2011-06-23
    Criterion           : Geometric MTF average S&T at 30.0000 cycles per mm   X@eg<]'m  
    Mode                : Sensitivities (V^QQ !:  
    Sampling            : 2 m^Rd Iy)  
    Nominal Criterion   : 0.54403234 .Wh6(LDY(  
    Test Wavelength     : 0.6328 3liq9P_  
    ~CulFxu  
    波长632.8nm 时 mtf 是 0.54403234  没达到0.6
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    只看该作者 6楼 发表于: 2011-06-24
    回 5楼(天地大同) 的帖子
    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？ $<14JEU  
     ,&4zKm  
    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？
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    只看该作者 7楼 发表于: 2011-06-24
    回 6楼(sansummer) 的帖子
    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
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    只看该作者 8楼 发表于: 2011-06-24
    回 7楼(天地大同) 的帖子
    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？
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    只看该作者 9楼 发表于: 2011-06-28
    回 8楼(sansummer) 的帖子
    恩，多多尝试
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