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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 Q2#)Jx\6!  
    ;j52a8uE'}  
    Z`:V~8=l  
    M.l;!U!}  
    然后添加了默认公差分析，基本没变 \ tQi7yj4  
    N.2rF  
    \(A>~D8Fo  
    u(lq9; ;Th  
    然后运行分析的结果如下： Yhx~5p  
    x,1&ml5  
    Analysis of Tolerances 6: M   
    0u0Hl%nl  
    File : E:\光学设计资料\zemax练习\f500.ZMX pFG~XW  
    Title: JEAqSZak#  
    Date : TUE JUN 21 2011 R.RCa$  
    ?pVODnP k  
    Units are Millimeters. D/giM#"  
    All changes are computed using linear differences. ,*bxNs'/  
    jwE<}y I  
    Paraxial Focus compensation only. mqE&phF,  
    2xjS;lpw  
    WARNING: Solves should be removed prior to tolerancing. RZz].Nx  
    &2Y>yFB ,  
    Mnemonics: W:tE ?Hu  
    TFRN: Tolerance on curvature in fringes. zU}0AVlIL:  
    TTHI: Tolerance on thickness. >uUbWKn3  
    TSDX: Tolerance on surface decentering in x. VWNmqeP  
    TSDY: Tolerance on surface decentering in y. 2h/` RefHJ  
    TSTX: Tolerance on surface tilt in x (degrees). ciXAyT cG  
    TSTY: Tolerance on surface tilt in y (degrees). 1o$<pZZ  
    TIRR: Tolerance on irregularity (fringes). $AX!L+<!  
    TIND: Tolerance on Nd index of refraction. .jRXHrK;  
    TEDX: Tolerance on element decentering in x. wv*r}{%7g[  
    TEDY: Tolerance on element decentering in y. |E}N8 \Gr  
    TETX: Tolerance on element tilt in x (degrees). ",K6zALJ  
    TETY: Tolerance on element tilt in y (degrees). `@:^(sMo  
    3W27R  
    WARNING: RAY AIMING IS OFF. Very loose tolerances may not be computed accurately. mM95BUB  
    S]9xqiJW  
    WARNING: Boundary constraints on compensators will be ignored. $QY(7Z"  
    apYf,"|9  
    Criterion           : Geometric MTF average S&T at 30.0000 cycles per mm 1ITa6vjS  
    Mode                : Sensitivities DG& kY+  
    Sampling            : 2 (yZ^Y'0  
    Nominal Criterion   : 0.54403234 Ml)WY#7  
    Test Wavelength     : 0.6328 0ogTQ`2Z:  
    kdF# Nm  
    ,iHl;3bu  
    Fields: XY Symmetric Angle in degrees y6Rg@L&U  
    #      X-Field      Y-Field       Weight    VDX    VDY    VCX    VCY h?idRaN_  
    1   0.000E+000   0.000E+000   1.000E+000  0.000  0.000  0.000  0.000 jgC/  
    N2~Nc"L  
    Sensitivity Analysis: "q%Q[^b  
    >uI|S  
                     |----------------- Minimum ----------------| |----------------- Maximum ----------------| <vPIC G)  
    Type                      Value      Criterion        Change          Value      Criterion        Change Ddu$49{S:  
    Fringe tolerance on surface 1 /*8"S mte  
    TFRN   1            -1.00000000     0.54257256    -0.00145977     1.00000000     0.54548607     0.00145374 |D<~a(0  
    Change in Focus                :      -0.000000                            0.000000 ]pFYAe ?  
    Fringe tolerance on surface 2 _El=M0  
    TFRN   2            -1.00000000     0.54177471    -0.00225762     1.00000000     0.54627463     0.00224230 qUVV374N  
    Change in Focus                :       0.000000                            0.000000 d_OHQpfK  
    Fringe tolerance on surface 3 hd '!f  
    TFRN   3            -1.00000000     0.54779866     0.00376632     1.00000000     0.54022572    -0.00380662 ni3^J5XW  
    Change in Focus                :      -0.000000                            0.000000 T3Tk:r  
    Thickness tolerance on surface 1 PDtaL  
    TTHI   1   3        -0.20000000     0.54321462    -0.00081772     0.20000000     0.54484759     0.00081525 Ldig/:  
    Change in Focus                :       0.000000                            0.000000 ?6a:!^eL  
    Thickness tolerance on surface 2 2.CI^.5&  
    TTHI   2   3        -0.20000000     0.54478712     0.00075478     0.20000000     0.54327558    -0.00075675 !,I}2,1%k  
    Change in Focus                :       0.000000                           -0.000000 =>ignoeI  
    Decenter X tolerance on surfaces 1 through 3 *}LYMrP  
    TEDX   1   3        -0.20000000     0.54401464   -1.7700E-005     0.20000000     0.54401464   -1.7700E-005 7Xw #  
    Change in Focus                :       0.000000                            0.000000 "&>$/b$  
    Decenter Y tolerance on surfaces 1 through 3 =0O`VSb  
    TEDY   1   3        -0.20000000     0.54401464   -1.7700E-005     0.20000000     0.54401464   -1.7700E-005 Wb^YqqE  
    Change in Focus                :       0.000000                            0.000000 0OlB;  
    Tilt X tolerance on surfaces 1 through 3 (degrees) eH75: `  
    TETX   1   3        -0.20000000     0.54897548     0.00494314     0.20000000     0.54897548     0.00494314 Xd{"+'29  
    Change in Focus                :       0.000000                            0.000000 0Y[mh@(  
    Tilt Y tolerance on surfaces 1 through 3 (degrees) b}axw+  
    TETY   1   3        -0.20000000     0.54897548     0.00494314     0.20000000     0.54897548     0.00494314 yht_*7.lM  
    Change in Focus                :       0.000000                            0.000000 MQLa+I,S4  
    Decenter X tolerance on surface 1 w+[r$+z!k  
    TSDX   1            -0.20000000     0.53999563    -0.00403671     0.20000000     0.53999563    -0.00403671 )x8Izn  
    Change in Focus                :       0.000000                            0.000000 nI dvff  
    Decenter Y tolerance on surface 1 ^cX);koO  
    TSDY   1            -0.20000000     0.53999563    -0.00403671     0.20000000     0.53999563    -0.00403671 &;*jMu6  
    Change in Focus                :       0.000000                            0.000000 <r_ldkZ  
    Tilt X tolerance on surface (degrees) 1 )6Hc Pso6  
    TSTX   1            -0.20000000     0.42678383    -0.11724851     0.20000000     0.42678383    -0.11724851 c"6<p5j!  
    Change in Focus                :       0.000000                            0.000000 v=@Z,-  
    Tilt Y tolerance on surface (degrees) 1 f%d7?<rw  
    TSTY   1            -0.20000000     0.42678383    -0.11724851     0.20000000     0.42678383    -0.11724851 BgUf:PT  
    Change in Focus                :       0.000000                            0.000000 uh@ZHef[l  
    Decenter X tolerance on surface 2 Pij*?qmeQ  
    TSDX   2            -0.20000000     0.51705427    -0.02697807     0.20000000     0.51705427    -0.02697807 eSJ5YeY)  
    Change in Focus                :       0.000000                            0.000000 0~)cAKus  
    Decenter Y tolerance on surface 2 L%I@HB9-Q0  
    TSDY   2            -0.20000000     0.51705427    -0.02697807     0.20000000     0.51705427    -0.02697807 ?!cUAa>iH  
    Change in Focus                :       0.000000                            0.000000 1Hk`i%  
    Tilt X tolerance on surface (degrees) 2 \M<C6m5  
    TSTX   2            -0.20000000     0.35349910    -0.19053324     0.20000000     0.35349910    -0.19053324 F0])g  
    Change in Focus                :       0.000000                            0.000000 ?%#3p[  
    Tilt Y tolerance on surface (degrees) 2 xyBWV]Y  
    TSTY   2            -0.20000000     0.35349910    -0.19053324     0.20000000     0.35349910    -0.19053324 .kyp5CD}4  
    Change in Focus                :       0.000000                            0.000000 %^kBcId  
    Decenter X tolerance on surface 3 0LN"azhz  
    TSDX   3            -0.20000000     0.53419039    -0.00984195     0.20000000     0.53419039    -0.00984195 Z!v)zH\  
    Change in Focus                :       0.000000                            0.000000 wtIXZU x  
    Decenter Y tolerance on surface 3 ~~;J[F p  
    TSDY   3            -0.20000000     0.53419039    -0.00984195     0.20000000     0.53419039    -0.00984195 E&#cU}ErN  
    Change in Focus                :       0.000000                            0.000000 2E;UHR  
    Tilt X tolerance on surface (degrees) 3 `[X5mEe  
    TSTX   3            -0.20000000     0.42861670    -0.11541563     0.20000000     0.42861670    -0.11541563 R:fERj<s  
    Change in Focus                :       0.000000                            0.000000 Fe{lM' 8  
    Tilt Y tolerance on surface (degrees) 3 ^ yyL4{/  
    TSTY   3            -0.20000000     0.42861670    -0.11541563     0.20000000     0.42861670    -0.11541563 qwoF4_VN  
    Change in Focus                :       0.000000                            0.000000 s<h]2W  
    Irregularity of surface 1 in fringes JPR o<jt=  
    TIRR   1            -0.20000000     0.50973587    -0.03429647     0.20000000     0.57333868     0.02930634 <My4 )3  
    Change in Focus                :       0.000000                            0.000000 $!H;,Jxv  
    Irregularity of surface 2 in fringes aHuZzYQ*"j  
    TIRR   2            -0.20000000     0.53400904    -0.01002330     0.20000000     0.55360281     0.00957047 L9W'TvTwo  
    Change in Focus                :       0.000000                            0.000000 M&wf4)*%0+  
    Irregularity of surface 3 in fringes Gx,<|v  
    TIRR   3            -0.20000000     0.58078982     0.03675748     0.20000000     0.49904394    -0.04498840 e5W 8YNA  
    Change in Focus                :       0.000000                            0.000000 Pp#  
    Index tolerance on surface 1 Py_yIwQqg  
    TIND   1            -0.00100000     0.52606778    -0.01796456     0.00100000     0.56121811     0.01718578 nc4KeEl  
    Change in Focus                :       0.000000                            0.000000 DI"KH)XD  
    Index tolerance on surface 2 Wl\.*^`k  
    TIND   2            -0.00100000     0.55639086     0.01235852     0.00100000     0.53126361    -0.01276872 :2ILN.&  
    Change in Focus                :       0.000000                           -0.000000 8eGq.+5G  
    'I^3r~_  
    Worst offenders: t<h[Lb%{T4  
    Type                      Value      Criterion        Change waT'|9{  
    TSTY   2            -0.20000000     0.35349910    -0.19053324 3k3-Ts  
    TSTY   2             0.20000000     0.35349910    -0.19053324 +#ufW%ZG  
    TSTX   2            -0.20000000     0.35349910    -0.19053324 9EHhVi  
    TSTX   2             0.20000000     0.35349910    -0.19053324 HQGn[7JW  
    TSTY   1            -0.20000000     0.42678383    -0.11724851 .FYxVF.  
    TSTY   1             0.20000000     0.42678383    -0.11724851 z_nv|5"  
    TSTX   1            -0.20000000     0.42678383    -0.11724851 h9-^aB$8^  
    TSTX   1             0.20000000     0.42678383    -0.11724851 C&wp*  
    TSTY   3            -0.20000000     0.42861670    -0.11541563 f=:ycd!  
    TSTY   3             0.20000000     0.42861670    -0.11541563 ||yx?q6\h  
    @$mh0K>  
    Estimated Performance Changes based upon Root-Sum-Square method: N5_`  
    Nominal MTF                 :     0.54403234 7n}$|h5D  
    Estimated change            :    -0.36299231 uC$!|I  
    Estimated MTF               :     0.18104003 Lp31Y . 4  
    bAOL<0RS9`  
    Compensator Statistics: (`'(`x#  
    Change in back focus: _?~EWT   
    Minimum            :        -0.000000 ^`iqa-1  
    Maximum            :         0.000000 &l M=>?  
    Mean               :        -0.000000 kZ5;Fe\*  
    Standard Deviation :         0.000000 9 n0 ?0mk  
    8/gA]I 6=#  
    Monte Carlo Analysis: U-+o6XX  
    Number of trials: 20 )?y${T   
    1egq:bh  
    Initial Statistics: Normal Distribution E>_N|j)9  
    -<0xS.^  
      Trial       Criterion        Change S(2_s,J^  
          1     0.42804416    -0.11598818 |!m8JV|x  
    Change in Focus                :      -0.400171 U\y:\+e l  
          2     0.54384387    -0.00018847 wHuz~y6  
    Change in Focus                :       1.018470 #|j8vmfn$e  
          3     0.44510003    -0.09893230 NdxPC~Z+  
    Change in Focus                :      -0.601922 \RT3#X+  
          4     0.18154684    -0.36248550 2^w8J w9  
    Change in Focus                :       0.920681 `_"loPu  
          5     0.28665820    -0.25737414 xyzYY}PS  
    Change in Focus                :       1.253875 '><I|c}  
          6     0.21263372    -0.33139862 3QhQpPk) ,  
    Change in Focus                :      -0.903878 GAP,$xAaW  
          7     0.40051424    -0.14351809 Yj"{aFK#u@  
    Change in Focus                :      -1.354815 ^vw[z2"  
          8     0.48754161    -0.05649072 dkWV/DAm  
    Change in Focus                :       0.215922 #W9{3JGUY  
          9     0.40357468    -0.14045766 Se}&2 R  
    Change in Focus                :       0.281783 %p;;aZG  
         10     0.26315315    -0.28087919 MX 7 Y1  
    Change in Focus                :      -1.048393 l6T^e@*  
         11     0.26120585    -0.28282649 J.(mg D  
    Change in Focus                :       1.017611 LK|1[y^h  
         12     0.24033815    -0.30369419 )k[{re  
    Change in Focus                :      -0.109292 Suo%uD  
         13     0.37164046    -0.17239188 7u`:e,'  
    Change in Focus                :      -0.692430 H#H[8#  
         14     0.48597489    -0.05805744 VX:Kq<XwQ  
    Change in Focus                :      -0.662040 #g#[|c.  
         15     0.21462327    -0.32940907 Ua.%?V  
    Change in Focus                :       1.611296 vd9PBN  
         16     0.43378226    -0.11025008 PR3i}y>  
    Change in Focus                :      -0.640081 J?Bj=b  
         17     0.39321881    -0.15081353 H krhd   
    Change in Focus                :       0.914906 50e vWD  
         18     0.20692530    -0.33710703 De ([fC  
    Change in Focus                :       0.801607 oH(a*i  
         19     0.51374068    -0.03029165 7Y.mp9,  
    Change in Focus                :       0.947293 "cwvx8un  
         20     0.38013374    -0.16389860 |R;`  
    Change in Focus                :       0.667010 bjBXs;zr@\  
    Y )68  
    Number of traceable Monte Carlo files generated: 20 ,7Dm p7  
    s|][p|  
    Nominal     0.54403234 KFBBqP  
    Best        0.54384387    Trial     2 G%fXHAs.+  
    Worst       0.18154684    Trial     4 KBDNK_7A  
    Mean        0.35770970 SaOOD-u  
    Std Dev     0.11156454 Gs/G_E(T  
    u p zBd]  
    e$`;z%6y  
    Compensator Statistics: ^|%N _ s  
    Change in back focus: q{}U5(,{0  
    Minimum            :        -1.354815 s54AM]a{j  
    Maximum            :         1.611296 8/@*6J  
    Mean               :         0.161872 F?Fxm*Wa/  
    Standard Deviation :         0.869664 FI@kE19  
    iU|X/>k?  
    90% >       0.20977951               p^C$(}Yh  
    80% >       0.22748071               ~zoZ{YqP  
    50% >       0.38667627               &8dj*!4H  
    20% >       0.46553746               qFp]jbU  
    10% >       0.50064115                734H{,~  
    )`#SMLMy~  
    End of Run. mUfANlQ:  
    IN@ =UAc&  
    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 XzW\p8D^u  
    WeIi{<u8R  
    nj#kzD[n>  
    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 yPf,GB"  
    m0*_  
    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                 bKQ-PM&I/t  
    80% >       0.22748071                 .c@,$z2M  
    50% >       0.38667627                 :&m0eZZ%  
    20% >       0.46553746                 npcL<$<6X  
    10% >       0.50064115 O*1la/~m  
    9j1 tcT  
    最后这个数值是MTF值呢，还是MTF的公差？ (o8?j^ -v  
    b|U3\Fmc  
    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？？？   \P9HAz'6  
    Ns-3\~QSi  
    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  : WjvD C"  
    90% >       0.20977951                 +BE_K_56  
    80% >       0.22748071                 ~F9WR5}]  
    50% >       0.38667627                 mu =H&JC  
    20% >       0.46553746                 X?Mc"M  
    10% >       0.50064115 Qd$!?h  
    ....... l/w<R  
    Mlr}v^"G  
    xYCX}bksh  
    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   gr")Jw7  
    Mode                : Sensitivities ) b vZ~t+^  
    Sampling            : 2 .<C}/Cl  
    Nominal Criterion   : 0.54403234 Q}MS $[y  
    Test Wavelength     : 0.6328 DdL0MGwX  
    l[q%1-N  
    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？ 6NV- &0 _  
    5Q.bwl:  
    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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