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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 OnD!*jy  
    h8R3N?S3#  
    CcF$?07 i  
    &b!L$@6  
    然后添加了默认公差分析，基本没变 PKDzIA~T  
    PvmmyF  
    FG-v71!h#  
    , 7` /D  
    然后运行分析的结果如下： cJ CKxj  
    w$ zX.;s  
    Analysis of Tolerances 'brt?oZ%  
    608}-J=3#  
    File : E:\光学设计资料\zemax练习\f500.ZMX $-HP5Kj(k-  
    Title: J<p.J3I  
    Date : TUE JUN 21 2011 to}g4  
    r>!$eqX_  
    Units are Millimeters. 7'c ;$~  
    All changes are computed using linear differences. G~$.Af!9W  
    tyEa5sy4  
    Paraxial Focus compensation only. $0uh8RB  
    ld RV JVZc  
    WARNING: Solves should be removed prior to tolerancing. 2(SU# /,  
    E5^P*6c(  
    Mnemonics: R`IFKmA EJ  
    TFRN: Tolerance on curvature in fringes. +XaRwcLC.  
    TTHI: Tolerance on thickness. Se0!-NUK0  
    TSDX: Tolerance on surface decentering in x. [C8lMEV~  
    TSDY: Tolerance on surface decentering in y. #3b_ #+,  
    TSTX: Tolerance on surface tilt in x (degrees). Z&f@)j  
    TSTY: Tolerance on surface tilt in y (degrees). :htz]  
    TIRR: Tolerance on irregularity (fringes). wiwAdYEQ\  
    TIND: Tolerance on Nd index of refraction. @W4tnM,#  
    TEDX: Tolerance on element decentering in x. 5=;LHS*   
    TEDY: Tolerance on element decentering in y. s} I8:ufT  
    TETX: Tolerance on element tilt in x (degrees). GJu[af  
    TETY: Tolerance on element tilt in y (degrees). 7H$I9e  
    |4$.mb.  
    WARNING: RAY AIMING IS OFF. Very loose tolerances may not be computed accurately. 4tQ~Z6Jn;  
    SG5GJCkc  
    WARNING: Boundary constraints on compensators will be ignored.  U(d K  
    n! Dr:$  
    Criterion           : Geometric MTF average S&T at 30.0000 cycles per mm  X.q,  
    Mode                : Sensitivities :\!D 6\o6  
    Sampling            : 2 fwkklg^  
    Nominal Criterion   : 0.54403234 Aof)WKo  
    Test Wavelength     : 0.6328 3/aK#TjK  
    mJ_ 5Vt=  
    qjcPJ  
    Fields: XY Symmetric Angle in degrees ;\N )RZ  
    #      X-Field      Y-Field       Weight    VDX    VDY    VCX    VCY wjq;9%eXk  
    1   0.000E+000   0.000E+000   1.000E+000  0.000  0.000  0.000  0.000 u<g0oEs)  
    Qu  x1N  
    Sensitivity Analysis: vz$_Fgsc.  
    h_( #U)z_3  
                     |----------------- Minimum ----------------| |----------------- Maximum ----------------| Mr0<b?I  
    Type                      Value      Criterion        Change          Value      Criterion        Change _#dBcEH[  
    Fringe tolerance on surface 1 ifXGH>C  
    TFRN   1            -1.00000000     0.54257256    -0.00145977     1.00000000     0.54548607     0.00145374 pmWt7 }  
    Change in Focus                :      -0.000000                            0.000000 O(R1D/A[  
    Fringe tolerance on surface 2 NsPAWI|4  
    TFRN   2            -1.00000000     0.54177471    -0.00225762     1.00000000     0.54627463     0.00224230 VRb+-T7"  
    Change in Focus                :       0.000000                            0.000000  46^9O 5J  
    Fringe tolerance on surface 3 6YHQ/#'G~  
    TFRN   3            -1.00000000     0.54779866     0.00376632     1.00000000     0.54022572    -0.00380662 3} 7`?$ 5  
    Change in Focus                :      -0.000000                            0.000000 3P.v#TEst  
    Thickness tolerance on surface 1 8gHOs#\  
    TTHI   1   3        -0.20000000     0.54321462    -0.00081772     0.20000000     0.54484759     0.00081525 <M y+!3\A  
    Change in Focus                :       0.000000                            0.000000 )Ja&Y  
    Thickness tolerance on surface 2 9a6ij*#  
    TTHI   2   3        -0.20000000     0.54478712     0.00075478     0.20000000     0.54327558    -0.00075675 j`D%Wx_  
    Change in Focus                :       0.000000                           -0.000000 bQvhBa?  
    Decenter X tolerance on surfaces 1 through 3 A2 r\=for  
    TEDX   1   3        -0.20000000     0.54401464   -1.7700E-005     0.20000000     0.54401464   -1.7700E-005 wv7XhY}  
    Change in Focus                :       0.000000                            0.000000 9hTzi+'S  
    Decenter Y tolerance on surfaces 1 through 3 t'e\Z2  
    TEDY   1   3        -0.20000000     0.54401464   -1.7700E-005     0.20000000     0.54401464   -1.7700E-005 >1$ vG  
    Change in Focus                :       0.000000                            0.000000 8|"26UwD/  
    Tilt X tolerance on surfaces 1 through 3 (degrees) 8v ZY+Q >  
    TETX   1   3        -0.20000000     0.54897548     0.00494314     0.20000000     0.54897548     0.00494314 baO'FyCs9&  
    Change in Focus                :       0.000000                            0.000000 rjo1  
    Tilt Y tolerance on surfaces 1 through 3 (degrees) svaclkT=  
    TETY   1   3        -0.20000000     0.54897548     0.00494314     0.20000000     0.54897548     0.00494314 t:O"t G  
    Change in Focus                :       0.000000                            0.000000 joRrsxFU  
    Decenter X tolerance on surface 1 n^t!+  
    TSDX   1            -0.20000000     0.53999563    -0.00403671     0.20000000     0.53999563    -0.00403671 Wik8V0(  
    Change in Focus                :       0.000000                            0.000000 W5^<4Ya!  
    Decenter Y tolerance on surface 1 W]CsKN,K  
    TSDY   1            -0.20000000     0.53999563    -0.00403671     0.20000000     0.53999563    -0.00403671 8Y,imj\(v  
    Change in Focus                :       0.000000                            0.000000 )Jaq5OMA/  
    Tilt X tolerance on surface (degrees) 1 tkX?iqKQ  
    TSTX   1            -0.20000000     0.42678383    -0.11724851     0.20000000     0.42678383    -0.11724851 Q1'4xWu  
    Change in Focus                :       0.000000                            0.000000 }T~ }W8H  
    Tilt Y tolerance on surface (degrees) 1 ?'IY0^  
    TSTY   1            -0.20000000     0.42678383    -0.11724851     0.20000000     0.42678383    -0.11724851 ,\RZ+kC>~  
    Change in Focus                :       0.000000                            0.000000 V{{Xz:   
    Decenter X tolerance on surface 2 u85  dG7  
    TSDX   2            -0.20000000     0.51705427    -0.02697807     0.20000000     0.51705427    -0.02697807 $`&zIz  
    Change in Focus                :       0.000000                            0.000000 a;h.I}*]  
    Decenter Y tolerance on surface 2 K(3_1*e  
    TSDY   2            -0.20000000     0.51705427    -0.02697807     0.20000000     0.51705427    -0.02697807 *DcB?8%  
    Change in Focus                :       0.000000                            0.000000 di4>Ir~]  
    Tilt X tolerance on surface (degrees) 2 v;o/M6GL5  
    TSTX   2            -0.20000000     0.35349910    -0.19053324     0.20000000     0.35349910    -0.19053324 f.G"[p  
    Change in Focus                :       0.000000                            0.000000 m#,AD,s  
    Tilt Y tolerance on surface (degrees) 2 U~GQ JR  
    TSTY   2            -0.20000000     0.35349910    -0.19053324     0.20000000     0.35349910    -0.19053324 n)uck5  
    Change in Focus                :       0.000000                            0.000000 eUVhNg  
    Decenter X tolerance on surface 3 V^%P}RFMc  
    TSDX   3            -0.20000000     0.53419039    -0.00984195     0.20000000     0.53419039    -0.00984195 od-yVE&  
    Change in Focus                :       0.000000                            0.000000 g2%fla7r  
    Decenter Y tolerance on surface 3 5L y Wg2  
    TSDY   3            -0.20000000     0.53419039    -0.00984195     0.20000000     0.53419039    -0.00984195 !Z!X]F-fY  
    Change in Focus                :       0.000000                            0.000000 AF\gB2^  
    Tilt X tolerance on surface (degrees) 3 xO{$6M3-~  
    TSTX   3            -0.20000000     0.42861670    -0.11541563     0.20000000     0.42861670    -0.11541563 $]<wQH/?_  
    Change in Focus                :       0.000000                            0.000000 ?J,K[.z  
    Tilt Y tolerance on surface (degrees) 3 XM57 UG  
    TSTY   3            -0.20000000     0.42861670    -0.11541563     0.20000000     0.42861670    -0.11541563 ?`/DFI'_G  
    Change in Focus                :       0.000000                            0.000000 6qd?&.=r  
    Irregularity of surface 1 in fringes F #)@ c  
    TIRR   1            -0.20000000     0.50973587    -0.03429647     0.20000000     0.57333868     0.02930634 IKVFbTX:y  
    Change in Focus                :       0.000000                            0.000000 f;=<$Y>i  
    Irregularity of surface 2 in fringes y#{v\h Cz  
    TIRR   2            -0.20000000     0.53400904    -0.01002330     0.20000000     0.55360281     0.00957047 dqgH"g  
    Change in Focus                :       0.000000                            0.000000 c->.eL%   
    Irregularity of surface 3 in fringes eL_Il.:  
    TIRR   3            -0.20000000     0.58078982     0.03675748     0.20000000     0.49904394    -0.04498840 }0}=-g&  
    Change in Focus                :       0.000000                            0.000000 Dnp><%  
    Index tolerance on surface 1 )m$MC25  
    TIND   1            -0.00100000     0.52606778    -0.01796456     0.00100000     0.56121811     0.01718578 3_ ZlZ_Tq  
    Change in Focus                :       0.000000                            0.000000 Tn"^`\m  
    Index tolerance on surface 2 5ENEx  
    TIND   2            -0.00100000     0.55639086     0.01235852     0.00100000     0.53126361    -0.01276872 }u]7x:lh  
    Change in Focus                :       0.000000                           -0.000000 -BC`p 8  
    1 \Z/}FT  
    Worst offenders: ;~GBD]  
    Type                      Value      Criterion        Change PJL [En*  
    TSTY   2            -0.20000000     0.35349910    -0.19053324 ] @uuB\u  
    TSTY   2             0.20000000     0.35349910    -0.19053324 4x-K0  
    TSTX   2            -0.20000000     0.35349910    -0.19053324 oc"7|YG  
    TSTX   2             0.20000000     0.35349910    -0.19053324 97k}{tG  
    TSTY   1            -0.20000000     0.42678383    -0.11724851 zG)vmysJf  
    TSTY   1             0.20000000     0.42678383    -0.11724851 _t>[gB,  
    TSTX   1            -0.20000000     0.42678383    -0.11724851 Vt(s4  
    TSTX   1             0.20000000     0.42678383    -0.11724851 PYiO l  
    TSTY   3            -0.20000000     0.42861670    -0.11541563 E1s~ +  
    TSTY   3             0.20000000     0.42861670    -0.11541563 UaB2vuL*=  
    @^.o8+Pp  
    Estimated Performance Changes based upon Root-Sum-Square method: ldnKV&N  
    Nominal MTF                 :     0.54403234 bT MgE Y  
    Estimated change            :    -0.36299231 NwN3T]W  
    Estimated MTF               :     0.18104003 FEdFGT  
    @=6oB3tQA  
    Compensator Statistics: i`w)dS  
    Change in back focus: #$;}-*  
    Minimum            :        -0.000000 jAdZS\?w  
    Maximum            :         0.000000 EE-wi@  
    Mean               :        -0.000000 ^p~QHS/  
    Standard Deviation :         0.000000 lS]6Sk Z6  
    P)O:lYX  
    Monte Carlo Analysis: s6k(K>Pl  
    Number of trials: 20 *).!  
    ~KczP1p  
    Initial Statistics: Normal Distribution *j<{3$6Ii  
    P4:Zy;$v!  
      Trial       Criterion        Change TZhYgV  
          1     0.42804416    -0.11598818 (aLjW=  
    Change in Focus                :      -0.400171 |G/U%?`  
          2     0.54384387    -0.00018847 3+&k{UZjt  
    Change in Focus                :       1.018470 @0V4$OoFl  
          3     0.44510003    -0.09893230 iB5q"hoZC  
    Change in Focus                :      -0.601922 9)>+r6t  
          4     0.18154684    -0.36248550 29zMs9oKPP  
    Change in Focus                :       0.920681 Dq-[b+bm  
          5     0.28665820    -0.25737414 [ldBI3  
    Change in Focus                :       1.253875 &3Lhb}m  
          6     0.21263372    -0.33139862 A b+qLh&?  
    Change in Focus                :      -0.903878 -O\f y!  
          7     0.40051424    -0.14351809 ~UHjc0  
    Change in Focus                :      -1.354815 Dutc#?bT  
          8     0.48754161    -0.05649072 R'pfA B|!  
    Change in Focus                :       0.215922 BIEq(/-  
          9     0.40357468    -0.14045766 -2j[;kgt}  
    Change in Focus                :       0.281783 o]WcODJdl  
         10     0.26315315    -0.28087919 mkq246<D~  
    Change in Focus                :      -1.048393 qP-_xpu]R  
         11     0.26120585    -0.28282649 Y;@]G=a   
    Change in Focus                :       1.017611 51-'*Y  
         12     0.24033815    -0.30369419 7K1_$vd  
    Change in Focus                :      -0.109292  % s@  
         13     0.37164046    -0.17239188 86>@.:d  
    Change in Focus                :      -0.692430 1bjz :^  
         14     0.48597489    -0.05805744 <fE ^S  
    Change in Focus                :      -0.662040 M9G?^mW1sT  
         15     0.21462327    -0.32940907 bokr,I3  
    Change in Focus                :       1.611296 -d-xsP} s  
         16     0.43378226    -0.11025008 ;p7R~17  
    Change in Focus                :      -0.640081 {0 %  
         17     0.39321881    -0.15081353 G7i0P j  
    Change in Focus                :       0.914906 BF 0#G2`h>  
         18     0.20692530    -0.33710703 ^\[c][fo  
    Change in Focus                :       0.801607 y\,,hs  
         19     0.51374068    -0.03029165 !MVf(y$  
    Change in Focus                :       0.947293 gjx-tp 1.  
         20     0.38013374    -0.16389860 ]^8CtgC  
    Change in Focus                :       0.667010 hAs ReZ?  
    /N#=Tol  
    Number of traceable Monte Carlo files generated: 20 wR,}#m,  
    BLAF{vVaf  
    Nominal     0.54403234 4Dy1M}7  
    Best        0.54384387    Trial     2 ObJ-XNcNH  
    Worst       0.18154684    Trial     4 z]KJ4  
    Mean        0.35770970 AxeQv'e  
    Std Dev     0.11156454 |bhv7(_  
    {|<yZ,,p  
    KyQTrl.qdl  
    Compensator Statistics: fg lN_  
    Change in back focus: 2%pU'D:  
    Minimum            :        -1.354815 KoA+Vv9  
    Maximum            :         1.611296 Mp=T;Nz  
    Mean               :         0.161872 @n=&muC}  
    Standard Deviation :         0.869664 s}-j.jzB{  
    4>HaKJ-c#  
    90% >       0.20977951               X|&H2y|*7  
    80% >       0.22748071               ?:&2iW7z  
    50% >       0.38667627               _s<s14+od  
    20% >       0.46553746               V(:wYk?ZR  
    10% >       0.50064115                KYwUkuw)  
    6(x53 y__  
    End of Run. 3t9CN )*  
    @.c[z D  
    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 [-i&)eX  
    2h#.:!/SMw  
    \B:k|Pw6~  
    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 &,3s2,1U(  
     NEPK   
    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                 `rK@> -  
    80% >       0.22748071                 ~7PiIky.  
    50% >       0.38667627                 bfEH>pQ>#  
    20% >       0.46553746                 tN_=&|{WE4  
    10% >       0.50064115 AAW] Y#UwW  
    _cC1u7U9  
    最后这个数值是MTF值呢，还是MTF的公差？ <Rs$d0/  
    e M5-v-  
    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？？？   ]=ZPSLuEm%  
    w{lj'3z I  
    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  : #`= >Mza  
    90% >       0.20977951                 \ZhkOl  
    80% >       0.22748071                 1:- M<=J?f  
    50% >       0.38667627                 N?#L{Yt  
    20% >       0.46553746                 u rQvJ  
    10% >       0.50064115 l+@k:IK  
    ....... ,' t&L]  
    [Mc Hl1a  
    "X._:||8  
    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   oa5L5Zr,A  
    Mode                : Sensitivities %}-ogi/c  
    Sampling            : 2 [; $:Lr  
    Nominal Criterion   : 0.54403234 6Fk[wH 7  
    Test Wavelength     : 0.6328 *%_M?^  
    _Gb 7n5p  
    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？ B VH)!]m0  
    <; Td8O89_  
    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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