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    [讨论]公差分析结果的疑问 [复制链接]

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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 'xZxX3  
    )?'sw5C  
    &dvJg  
    S$%/9^\jF  
    然后添加了默认公差分析，基本没变 u]E%R&  
    $Z 10Zf=  
    /@FB;`'  
    #f.@XIt'  
    然后运行分析的结果如下： )ACa0V>*p  
    =Cs$0aA  
    Analysis of Tolerances DS>s_3V  
    y=9a2 [3Dz  
    File : E:\光学设计资料\zemax练习\f500.ZMX I>/`W  
    Title: KGi@H%NN  
    Date : TUE JUN 21 2011 2 T{PIJg3  
    SfJ/(q  
    Units are Millimeters. lGG1d  
    All changes are computed using linear differences. i BJ*6orz  
    /dOQ4VA\  
    Paraxial Focus compensation only. Ms1\J2  
    !nVX .m9  
    WARNING: Solves should be removed prior to tolerancing. { KwLcSn  
    nS?HH6H  
    Mnemonics: |BH, H  
    TFRN: Tolerance on curvature in fringes. rA*,)I_v@  
    TTHI: Tolerance on thickness. l0D.7>aj  
    TSDX: Tolerance on surface decentering in x. F]yclXf('  
    TSDY: Tolerance on surface decentering in y. (~Zg\(5#  
    TSTX: Tolerance on surface tilt in x (degrees). Q k-y 0  
    TSTY: Tolerance on surface tilt in y (degrees). Zz?+,-$_*&  
    TIRR: Tolerance on irregularity (fringes). w#PaN83+  
    TIND: Tolerance on Nd index of refraction. vW$] :).  
    TEDX: Tolerance on element decentering in x. R~RY:[5?w  
    TEDY: Tolerance on element decentering in y. " "a+Nc  
    TETX: Tolerance on element tilt in x (degrees). 7C2/^x P  
    TETY: Tolerance on element tilt in y (degrees). m$LZ3=v%8  
    D4#,9?us  
    WARNING: RAY AIMING IS OFF. Very loose tolerances may not be computed accurately. 5jNBt>.0  
    w5n>hz_5  
    WARNING: Boundary constraints on compensators will be ignored. "6KOql3  
    /u:Sn=SPd  
    Criterion           : Geometric MTF average S&T at 30.0000 cycles per mm ^"buF\3L  
    Mode                : Sensitivities HwST^\Ao  
    Sampling            : 2 I}:>M!w  
    Nominal Criterion   : 0.54403234 :L`z~/6  
    Test Wavelength     : 0.6328 2DV{gF  
    <Isr  
    g X(QRQ  
    Fields: XY Symmetric Angle in degrees |=%$7b\C  
    #      X-Field      Y-Field       Weight    VDX    VDY    VCX    VCY gu:..'V  
    1   0.000E+000   0.000E+000   1.000E+000  0.000  0.000  0.000  0.000 |um)vlN;9  
    C i*TX  
    Sensitivity Analysis: '.kbXw0}  
     %;W8;  
                     |----------------- Minimum ----------------| |----------------- Maximum ----------------| $^ >n@Q@&L  
    Type                      Value      Criterion        Change          Value      Criterion        Change xD1wHp!+  
    Fringe tolerance on surface 1 um8ZhXq  
    TFRN   1            -1.00000000     0.54257256    -0.00145977     1.00000000     0.54548607     0.00145374 nQ~q -=,L  
    Change in Focus                :      -0.000000                            0.000000 T@vVff  
    Fringe tolerance on surface 2 JK_$A;Q  
    TFRN   2            -1.00000000     0.54177471    -0.00225762     1.00000000     0.54627463     0.00224230 g:,4Kd|  
    Change in Focus                :       0.000000                            0.000000 ]iNSa{G  
    Fringe tolerance on surface 3 A,=l9hE'  
    TFRN   3            -1.00000000     0.54779866     0.00376632     1.00000000     0.54022572    -0.00380662 QM_~w \  
    Change in Focus                :      -0.000000                            0.000000 %xk]y&jv  
    Thickness tolerance on surface 1 5N|77AAxK  
    TTHI   1   3        -0.20000000     0.54321462    -0.00081772     0.20000000     0.54484759     0.00081525 QiRzA4-zq  
    Change in Focus                :       0.000000                            0.000000 d,0pNav)  
    Thickness tolerance on surface 2 1^W Aps  
    TTHI   2   3        -0.20000000     0.54478712     0.00075478     0.20000000     0.54327558    -0.00075675 Ys3C'Gc  
    Change in Focus                :       0.000000                           -0.000000 bg=`   
    Decenter X tolerance on surfaces 1 through 3 ;zJ_apZ:{  
    TEDX   1   3        -0.20000000     0.54401464   -1.7700E-005     0.20000000     0.54401464   -1.7700E-005 <s{/ka3  
    Change in Focus                :       0.000000                            0.000000 rU~"A  
    Decenter Y tolerance on surfaces 1 through 3 CNN?8/u!@  
    TEDY   1   3        -0.20000000     0.54401464   -1.7700E-005     0.20000000     0.54401464   -1.7700E-005 oNh .Zgg  
    Change in Focus                :       0.000000                            0.000000 ]D]K_`!K  
    Tilt X tolerance on surfaces 1 through 3 (degrees) vcSS+  
    TETX   1   3        -0.20000000     0.54897548     0.00494314     0.20000000     0.54897548     0.00494314 H{$yy)@F  
    Change in Focus                :       0.000000                            0.000000 d8r+UP@#  
    Tilt Y tolerance on surfaces 1 through 3 (degrees) 4Sl^cKb$7  
    TETY   1   3        -0.20000000     0.54897548     0.00494314     0.20000000     0.54897548     0.00494314 "yz@LV1  
    Change in Focus                :       0.000000                            0.000000 r-0 7!A  
    Decenter X tolerance on surface 1 E nUo B<  
    TSDX   1            -0.20000000     0.53999563    -0.00403671     0.20000000     0.53999563    -0.00403671 *lTu-  
    Change in Focus                :       0.000000                            0.000000 W ][IHy<   
    Decenter Y tolerance on surface 1 M1>a,va8Zq  
    TSDY   1            -0.20000000     0.53999563    -0.00403671     0.20000000     0.53999563    -0.00403671 EPg?jKZava  
    Change in Focus                :       0.000000                            0.000000 =1JRu[&]8  
    Tilt X tolerance on surface (degrees) 1 6x7=0}'  
    TSTX   1            -0.20000000     0.42678383    -0.11724851     0.20000000     0.42678383    -0.11724851 'qD9k J`  
    Change in Focus                :       0.000000                            0.000000 UM]wDFn'E  
    Tilt Y tolerance on surface (degrees) 1 g ` {0I[  
    TSTY   1            -0.20000000     0.42678383    -0.11724851     0.20000000     0.42678383    -0.11724851 h}d7M55#|  
    Change in Focus                :       0.000000                            0.000000 XDWERv Ij  
    Decenter X tolerance on surface 2 x~z 2l#ow  
    TSDX   2            -0.20000000     0.51705427    -0.02697807     0.20000000     0.51705427    -0.02697807 rTJWftH!  
    Change in Focus                :       0.000000                            0.000000 >@|<1Fx|  
    Decenter Y tolerance on surface 2 ?t"PawBWE  
    TSDY   2            -0.20000000     0.51705427    -0.02697807     0.20000000     0.51705427    -0.02697807 bpILiC  
    Change in Focus                :       0.000000                            0.000000 Z`!pU"O9l  
    Tilt X tolerance on surface (degrees) 2 INT2i8oU  
    TSTX   2            -0.20000000     0.35349910    -0.19053324     0.20000000     0.35349910    -0.19053324 u`~{:V  
    Change in Focus                :       0.000000                            0.000000 sg y  
    Tilt Y tolerance on surface (degrees) 2 JQCwI`%i  
    TSTY   2            -0.20000000     0.35349910    -0.19053324     0.20000000     0.35349910    -0.19053324 !(~>-;A8  
    Change in Focus                :       0.000000                            0.000000 h ^c'L=dR  
    Decenter X tolerance on surface 3 `sXx,sV?B  
    TSDX   3            -0.20000000     0.53419039    -0.00984195     0.20000000     0.53419039    -0.00984195 C G7 LF  
    Change in Focus                :       0.000000                            0.000000 f:SF&t*  
    Decenter Y tolerance on surface 3 u rOGOa$  
    TSDY   3            -0.20000000     0.53419039    -0.00984195     0.20000000     0.53419039    -0.00984195 @W,Y_8:  
    Change in Focus                :       0.000000                            0.000000 r/v&tU  
    Tilt X tolerance on surface (degrees) 3 Rb0{t[IU  
    TSTX   3            -0.20000000     0.42861670    -0.11541563     0.20000000     0.42861670    -0.11541563 aVb]H0  
    Change in Focus                :       0.000000                            0.000000 4tU~ ^z  
    Tilt Y tolerance on surface (degrees) 3 [ b W=>M  
    TSTY   3            -0.20000000     0.42861670    -0.11541563     0.20000000     0.42861670    -0.11541563 vB{b/xmah  
    Change in Focus                :       0.000000                            0.000000 aFym&n\  
    Irregularity of surface 1 in fringes ZL>V9UWN  
    TIRR   1            -0.20000000     0.50973587    -0.03429647     0.20000000     0.57333868     0.02930634 .R'i=D`Pz  
    Change in Focus                :       0.000000                            0.000000 8G P}g?%  
    Irregularity of surface 2 in fringes SMFW]I2T/  
    TIRR   2            -0.20000000     0.53400904    -0.01002330     0.20000000     0.55360281     0.00957047 1sJN^BvuG  
    Change in Focus                :       0.000000                            0.000000 85 hYYB0v  
    Irregularity of surface 3 in fringes M&FuXG%  
    TIRR   3            -0.20000000     0.58078982     0.03675748     0.20000000     0.49904394    -0.04498840 a*hThr+$M  
    Change in Focus                :       0.000000                            0.000000 rZv+K/6*M  
    Index tolerance on surface 1 C] w< &o  
    TIND   1            -0.00100000     0.52606778    -0.01796456     0.00100000     0.56121811     0.01718578 aiHr2x6  
    Change in Focus                :       0.000000                            0.000000 c v 9 6F  
    Index tolerance on surface 2 )8SP$  
    TIND   2            -0.00100000     0.55639086     0.01235852     0.00100000     0.53126361    -0.01276872 k ))*z FV  
    Change in Focus                :       0.000000                           -0.000000 %np#Bv-L  
    lo:~~l  
    Worst offenders: Om  
    Type                      Value      Criterion        Change )'~FDw\6  
    TSTY   2            -0.20000000     0.35349910    -0.19053324 }v,THj  
    TSTY   2             0.20000000     0.35349910    -0.19053324 Y zS*p~|  
    TSTX   2            -0.20000000     0.35349910    -0.19053324 r\d:fot  
    TSTX   2             0.20000000     0.35349910    -0.19053324 q#`^EqtUF  
    TSTY   1            -0.20000000     0.42678383    -0.11724851  G{.+D2  
    TSTY   1             0.20000000     0.42678383    -0.11724851 t] wM_]+  
    TSTX   1            -0.20000000     0.42678383    -0.11724851 6hK"k  
    TSTX   1             0.20000000     0.42678383    -0.11724851 (do=o&9p m  
    TSTY   3            -0.20000000     0.42861670    -0.11541563 ^mpB\D)q  
    TSTY   3             0.20000000     0.42861670    -0.11541563 %#9~V  
    PNgMLQI6  
    Estimated Performance Changes based upon Root-Sum-Square method: \T9UbkR  
    Nominal MTF                 :     0.54403234 1,QZnF!.x  
    Estimated change            :    -0.36299231 e9_+$Oo  
    Estimated MTF               :     0.18104003 ]gksyxn3  
    fm>K4\2  
    Compensator Statistics: 4d G-  
    Change in back focus: Pfx71*u,  
    Minimum            :        -0.000000 QJWES%m`  
    Maximum            :         0.000000 |:+pPh!-  
    Mean               :        -0.000000 o$VH,2 QF  
    Standard Deviation :         0.000000 ~iZF~PQ1_  
    F |81i$R  
    Monte Carlo Analysis: %E"/]!}3  
    Number of trials: 20 X.l"f'`l  
    TSSt@xQ+  
    Initial Statistics: Normal Distribution vw] D{OBv*  
    ,jsx]U/^  
      Trial       Criterion        Change JK"uj%  
          1     0.42804416    -0.11598818 -Y?(Zz_w  
    Change in Focus                :      -0.400171 y=xe<#L  
          2     0.54384387    -0.00018847 y%bqeo L~  
    Change in Focus                :       1.018470 ,7jiHF  
          3     0.44510003    -0.09893230 sFCs_u1tNN  
    Change in Focus                :      -0.601922 I%>]!X  
          4     0.18154684    -0.36248550 FR^wDm$  
    Change in Focus                :       0.920681 |~LjH|*M  
          5     0.28665820    -0.25737414 1r& ?J.z25  
    Change in Focus                :       1.253875 3dDQz#  
          6     0.21263372    -0.33139862 rqe_zyc&  
    Change in Focus                :      -0.903878 G>S1Ld'MV  
          7     0.40051424    -0.14351809 |uwteG5?$s  
    Change in Focus                :      -1.354815 n3g WM C  
          8     0.48754161    -0.05649072 NvHy'  
    Change in Focus                :       0.215922 >m6,xxTR  
          9     0.40357468    -0.14045766 {C0^D*U:  
    Change in Focus                :       0.281783 A|_%'8  
         10     0.26315315    -0.28087919 (Zn3-t*  
    Change in Focus                :      -1.048393 `[` *@O(y  
         11     0.26120585    -0.28282649 .Xz"NyW  
    Change in Focus                :       1.017611 i -s?"Fk  
         12     0.24033815    -0.30369419 Q0uO49sg  
    Change in Focus                :      -0.109292 ]AA*f_!  
         13     0.37164046    -0.17239188 p z+}7  
    Change in Focus                :      -0.692430 2]RH)W86;  
         14     0.48597489    -0.05805744 lPQ Ut!xI  
    Change in Focus                :      -0.662040 9 roth  
         15     0.21462327    -0.32940907 4f[M$xU&h  
    Change in Focus                :       1.611296 Oj lB 0  
         16     0.43378226    -0.11025008 0R5^p  
    Change in Focus                :      -0.640081 4U a~*58  
         17     0.39321881    -0.15081353 'j<:FUDJ  
    Change in Focus                :       0.914906 ^_S-s\DW  
         18     0.20692530    -0.33710703 `MYKXBM  
    Change in Focus                :       0.801607 ~v(M6dz~vk  
         19     0.51374068    -0.03029165 vQTQS[R=z  
    Change in Focus                :       0.947293 KYmWfM3^  
         20     0.38013374    -0.16389860 C`~4q<W'  
    Change in Focus                :       0.667010 2:HP5   
    $s(4?^GP  
    Number of traceable Monte Carlo files generated: 20 lp0T\ %  
    S}p&\w H  
    Nominal     0.54403234 -f;j1bQ  
    Best        0.54384387    Trial     2 vb.Y8[  
    Worst       0.18154684    Trial     4 L!b0y7yR  
    Mean        0.35770970 {{[jC"4AY  
    Std Dev     0.11156454 k1Mxsd  
    GKsL~;8"  
    B/9<b{6  
    Compensator Statistics: JXRf4QmG  
    Change in back focus: 5) n:<U*  
    Minimum            :        -1.354815 >[%.h(h/%  
    Maximum            :         1.611296 )4F/T,{;m  
    Mean               :         0.161872 0O['-x  
    Standard Deviation :         0.869664 qfP"UAc{/  
    d,J<SG&L&  
    90% >       0.20977951               $7gB&T.x  
    80% >       0.22748071               ,ORG"]_F  
    50% >       0.38667627               >]XaUQ-  
    20% >       0.46553746               7MuK/q.  
    10% >       0.50064115                l;{N/cS  
    p`<e~[]a  
    End of Run. B-ri}PA  
    e"s{_V  
    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 Th;gps%b  
    lgjoF_D  
    qvfAG 0p  
    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 @a.6?.<L  
    Q!2iOvK  
    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                 :uIi ?  
    80% >       0.22748071                 b5n]Gp  
    50% >       0.38667627                 }W__ffH  
    20% >       0.46553746                 <>T&ab@dE(  
    10% >       0.50064115 L)R[)$2(g  
     [`hE^chd  
    最后这个数值是MTF值呢，还是MTF的公差？ 9Ew:.&d  
    22al  
    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？？？   /.| A  
    [B"dH-r7  
    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  : _iG2J&1'L  
    90% >       0.20977951                 =N YgGEFq.  
    80% >       0.22748071                 ~bdv_|k  
    50% >       0.38667627                 k: b/Gq`  
    20% >       0.46553746                 QWrIa1.JC  
    10% >       0.50064115 LHs-&  
    ....... @ Ii-NmOr  
    Ye9Y^+-  
    K)\(wxv  
    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   lC0~c=?J  
    Mode                : Sensitivities LO)GTyzvJ  
    Sampling            : 2 {fZb@7?GF  
    Nominal Criterion   : 0.54403234 $@_{p*q  
    Test Wavelength     : 0.6328 #~L!pKM  
    R (G2qi  
    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？ ^i+[m  
    l<(cd,  
    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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