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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 KjV1->r#  
    [r1\FF@v,  
    `cmzmQC  
    0#sf,ja>  
    然后添加了默认公差分析，基本没变 {bNKyT  
    *]S&V'Di  
    78'3&,+si  
    xCU pMB7  
    然后运行分析的结果如下： t%s(xz#1  
    Gd2t^tc  
    Analysis of Tolerances C%P"\>5@  
    F^DDN7AKH  
    File : E:\光学设计资料\zemax练习\f500.ZMX %&$s0=+  
    Title: ];{CNDAL2  
    Date : TUE JUN 21 2011 > 8!9  
    Qv;^nj{\qV  
    Units are Millimeters. d r=h;[Q'  
    All changes are computed using linear differences. ' '|R$9\@  
    /n9,XD&)  
    Paraxial Focus compensation only. H3 |x  
    y(6*)~Dh  
    WARNING: Solves should be removed prior to tolerancing. )K 0rPnYV  
    kSqMI'89  
    Mnemonics: ?Hf8<C}3  
    TFRN: Tolerance on curvature in fringes. ftqeiZ 2  
    TTHI: Tolerance on thickness. hLSas#B>  
    TSDX: Tolerance on surface decentering in x. ~hQTxLp  
    TSDY: Tolerance on surface decentering in y. -H](2}  
    TSTX: Tolerance on surface tilt in x (degrees). WD'[|s\  
    TSTY: Tolerance on surface tilt in y (degrees). LeXkl=CC  
    TIRR: Tolerance on irregularity (fringes). 4q`e<!MP)q  
    TIND: Tolerance on Nd index of refraction. KZsJ_t++!W  
    TEDX: Tolerance on element decentering in x. lT- LOu|  
    TEDY: Tolerance on element decentering in y. >~* w  
    TETX: Tolerance on element tilt in x (degrees). ,uhOf! |  
    TETY: Tolerance on element tilt in y (degrees). 0(az80 p  
    -* piC(  
    WARNING: RAY AIMING IS OFF. Very loose tolerances may not be computed accurately. ujoJ6UOG  
    v?#W/].C+  
    WARNING: Boundary constraints on compensators will be ignored. ~i9'9PHX@  
    /-C6I:  
    Criterion           : Geometric MTF average S&T at 30.0000 cycles per mm Ov~>* [  
    Mode                : Sensitivities \Q MRuR.  
    Sampling            : 2 kiR+ Dsl  
    Nominal Criterion   : 0.54403234 !Im{-t  
    Test Wavelength     : 0.6328 H.s:a#l?  
     5wy3C  
    %D<>F&h  
    Fields: XY Symmetric Angle in degrees r| 0wIpi6Q  
    #      X-Field      Y-Field       Weight    VDX    VDY    VCX    VCY =bl6:  
    1   0.000E+000   0.000E+000   1.000E+000  0.000  0.000  0.000  0.000 47^R  
    fpPHw)dTd  
    Sensitivity Analysis: J4^aD;j  
    A{KF<Omu  
                     |----------------- Minimum ----------------| |----------------- Maximum ----------------| ~V!gHJ5M  
    Type                      Value      Criterion        Change          Value      Criterion        Change }>~]q)]  
    Fringe tolerance on surface 1 nG !6[^D  
    TFRN   1            -1.00000000     0.54257256    -0.00145977     1.00000000     0.54548607     0.00145374 iz\GahK  
    Change in Focus                :      -0.000000                            0.000000 rh 7%<xb>  
    Fringe tolerance on surface 2 nv2p&-e+  
    TFRN   2            -1.00000000     0.54177471    -0.00225762     1.00000000     0.54627463     0.00224230 1usLCG>w{  
    Change in Focus                :       0.000000                            0.000000 $]S*(K3U ~  
    Fringe tolerance on surface 3 @vkO(o  
    TFRN   3            -1.00000000     0.54779866     0.00376632     1.00000000     0.54022572    -0.00380662 .Fn7yTQ%  
    Change in Focus                :      -0.000000                            0.000000 VF] ~J=>i  
    Thickness tolerance on surface 1 Ny)N  
    TTHI   1   3        -0.20000000     0.54321462    -0.00081772     0.20000000     0.54484759     0.00081525 4ai|*8.  
    Change in Focus                :       0.000000                            0.000000 4ROuy+Ms'  
    Thickness tolerance on surface 2 -jQM h  
    TTHI   2   3        -0.20000000     0.54478712     0.00075478     0.20000000     0.54327558    -0.00075675 :PF6xL&  
    Change in Focus                :       0.000000                           -0.000000 ' lMPI@C6r  
    Decenter X tolerance on surfaces 1 through 3 f" g-Hbl5  
    TEDX   1   3        -0.20000000     0.54401464   -1.7700E-005     0.20000000     0.54401464   -1.7700E-005 ,5HC &@  
    Change in Focus                :       0.000000                            0.000000 u:s[6T0  
    Decenter Y tolerance on surfaces 1 through 3 d{G*1l(X  
    TEDY   1   3        -0.20000000     0.54401464   -1.7700E-005     0.20000000     0.54401464   -1.7700E-005 M*lCoJ  
    Change in Focus                :       0.000000                            0.000000 MWron_xg  
    Tilt X tolerance on surfaces 1 through 3 (degrees) iF'qaqHWY4  
    TETX   1   3        -0.20000000     0.54897548     0.00494314     0.20000000     0.54897548     0.00494314 3zuYN-;  
    Change in Focus                :       0.000000                            0.000000 W]= $0'  
    Tilt Y tolerance on surfaces 1 through 3 (degrees) [5sa1$n96G  
    TETY   1   3        -0.20000000     0.54897548     0.00494314     0.20000000     0.54897548     0.00494314 { x/~gp  
    Change in Focus                :       0.000000                            0.000000 ftwn<B  
    Decenter X tolerance on surface 1 &5o ln@YL  
    TSDX   1            -0.20000000     0.53999563    -0.00403671     0.20000000     0.53999563    -0.00403671 r*XEne  
    Change in Focus                :       0.000000                            0.000000 E|l qlS7  
    Decenter Y tolerance on surface 1 y ZR\(\?<  
    TSDY   1            -0.20000000     0.53999563    -0.00403671     0.20000000     0.53999563    -0.00403671 'n4$dv% q  
    Change in Focus                :       0.000000                            0.000000 ;{hE]jReH  
    Tilt X tolerance on surface (degrees) 1 $ %BNoSK  
    TSTX   1            -0.20000000     0.42678383    -0.11724851     0.20000000     0.42678383    -0.11724851 kKEs >a  
    Change in Focus                :       0.000000                            0.000000 KBkS>0;X  
    Tilt Y tolerance on surface (degrees) 1 ^4 ?LQ[t'  
    TSTY   1            -0.20000000     0.42678383    -0.11724851     0.20000000     0.42678383    -0.11724851 Tkf JC|6  
    Change in Focus                :       0.000000                            0.000000 :FqHMN  
    Decenter X tolerance on surface 2 v3/l= e?u  
    TSDX   2            -0.20000000     0.51705427    -0.02697807     0.20000000     0.51705427    -0.02697807 *wD| e K7  
    Change in Focus                :       0.000000                            0.000000 (nLT 8{>0  
    Decenter Y tolerance on surface 2 uKE?VNC]  
    TSDY   2            -0.20000000     0.51705427    -0.02697807     0.20000000     0.51705427    -0.02697807 =UMqa;\K  
    Change in Focus                :       0.000000                            0.000000 # 8fq6z|JZ  
    Tilt X tolerance on surface (degrees) 2 WXX)_L$2  
    TSTX   2            -0.20000000     0.35349910    -0.19053324     0.20000000     0.35349910    -0.19053324 sbV {RSl  
    Change in Focus                :       0.000000                            0.000000 5svM3  #  
    Tilt Y tolerance on surface (degrees) 2 `37$YdX  
    TSTY   2            -0.20000000     0.35349910    -0.19053324     0.20000000     0.35349910    -0.19053324 iX\]-_D  
    Change in Focus                :       0.000000                            0.000000 :#&Y  
    Decenter X tolerance on surface 3 0$A7"^]  
    TSDX   3            -0.20000000     0.53419039    -0.00984195     0.20000000     0.53419039    -0.00984195 A4`3yy{0-  
    Change in Focus                :       0.000000                            0.000000 .1#G*A|  
    Decenter Y tolerance on surface 3 .*W_;Fo  
    TSDY   3            -0.20000000     0.53419039    -0.00984195     0.20000000     0.53419039    -0.00984195 *N!>c&8  
    Change in Focus                :       0.000000                            0.000000 5 i;n:&Y  
    Tilt X tolerance on surface (degrees) 3 @dx$&;w  
    TSTX   3            -0.20000000     0.42861670    -0.11541563     0.20000000     0.42861670    -0.11541563 .T|1l$Jn  
    Change in Focus                :       0.000000                            0.000000 TM2pE/P  
    Tilt Y tolerance on surface (degrees) 3 J.^%VnrFO9  
    TSTY   3            -0.20000000     0.42861670    -0.11541563     0.20000000     0.42861670    -0.11541563 1'Y7h;\~\  
    Change in Focus                :       0.000000                            0.000000 ^I]A@YNni  
    Irregularity of surface 1 in fringes 6< O|,7=_  
    TIRR   1            -0.20000000     0.50973587    -0.03429647     0.20000000     0.57333868     0.02930634 fA{t\  
    Change in Focus                :       0.000000                            0.000000 =LHz[dSL  
    Irregularity of surface 2 in fringes ? vr9l7VOi  
    TIRR   2            -0.20000000     0.53400904    -0.01002330     0.20000000     0.55360281     0.00957047 b]cnTR2E  
    Change in Focus                :       0.000000                            0.000000 ~![J~CkPS  
    Irregularity of surface 3 in fringes asd3J  
    TIRR   3            -0.20000000     0.58078982     0.03675748     0.20000000     0.49904394    -0.04498840 T>qI,BEY  
    Change in Focus                :       0.000000                            0.000000 ^a{cK  
    Index tolerance on surface 1 L j>HZS$F  
    TIND   1            -0.00100000     0.52606778    -0.01796456     0.00100000     0.56121811     0.01718578 |E5\_Z  
    Change in Focus                :       0.000000                            0.000000 t`oH7)nut  
    Index tolerance on surface 2 i^2-PKPg{  
    TIND   2            -0.00100000     0.55639086     0.01235852     0.00100000     0.53126361    -0.01276872 yHIZpU|(j  
    Change in Focus                :       0.000000                           -0.000000 \mGo k<b4  
    fNnX{Wq  
    Worst offenders: V4>qR{5  
    Type                      Value      Criterion        Change %=EN 3>,  
    TSTY   2            -0.20000000     0.35349910    -0.19053324 1Q>D^yPI[  
    TSTY   2             0.20000000     0.35349910    -0.19053324 |';oIYs|$  
    TSTX   2            -0.20000000     0.35349910    -0.19053324 )E>nr Z  
    TSTX   2             0.20000000     0.35349910    -0.19053324 MR`lF-|a|  
    TSTY   1            -0.20000000     0.42678383    -0.11724851 |p\vH#6y+  
    TSTY   1             0.20000000     0.42678383    -0.11724851 {$fd?| 9h  
    TSTX   1            -0.20000000     0.42678383    -0.11724851 9XEP:}5,  
    TSTX   1             0.20000000     0.42678383    -0.11724851 u-%|ZSg  
    TSTY   3            -0.20000000     0.42861670    -0.11541563 7x5wT ?2W  
    TSTY   3             0.20000000     0.42861670    -0.11541563 S2,tv  
    |(77ao3  
    Estimated Performance Changes based upon Root-Sum-Square method: 7wB*@a-  
    Nominal MTF                 :     0.54403234 _KZ&/  
    Estimated change            :    -0.36299231 Q$lgC v^M  
    Estimated MTF               :     0.18104003 .bloaeu-  
    TcKt   
    Compensator Statistics: S<nf"oy_K  
    Change in back focus: (YC{BM}  
    Minimum            :        -0.000000 & @rXt!  
    Maximum            :         0.000000 B57MzIZi]  
    Mean               :        -0.000000 rGIf/=G^r  
    Standard Deviation :         0.000000 Um2RLM%  
    T;`2t;  
    Monte Carlo Analysis: Kd;Iu\4hv  
    Number of trials: 20 A\:u5(  
    V''?kVJ  
    Initial Statistics: Normal Distribution #Bo3 :B8  
    "HwSW4a]  
      Trial       Criterion        Change -.!+i8d>  
          1     0.42804416    -0.11598818 J_`a}ox  
    Change in Focus                :      -0.400171 unD.t  
          2     0.54384387    -0.00018847 Y6:b  
    Change in Focus                :       1.018470 Xdl7'~k  
          3     0.44510003    -0.09893230 YHQvx_0yP  
    Change in Focus                :      -0.601922 nBkzNb{"AZ  
          4     0.18154684    -0.36248550 |9Pi*)E  
    Change in Focus                :       0.920681 (\$=de>?  
          5     0.28665820    -0.25737414 )kk10AZV-E  
    Change in Focus                :       1.253875 )1, U~+JFU  
          6     0.21263372    -0.33139862 qLWM,[Og  
    Change in Focus                :      -0.903878 GJTakhj3  
          7     0.40051424    -0.14351809 Gr8%%]1!0  
    Change in Focus                :      -1.354815 v9"|VhZ  
          8     0.48754161    -0.05649072 Hn sPXF'8g  
    Change in Focus                :       0.215922  "[ #.  
          9     0.40357468    -0.14045766 KEfwsNSc%  
    Change in Focus                :       0.281783 LTWiCI  
         10     0.26315315    -0.28087919 %n@ ^$&,&;  
    Change in Focus                :      -1.048393 E/@  
         11     0.26120585    -0.28282649 VKMgcfbHr/  
    Change in Focus                :       1.017611 E]dc4US  
         12     0.24033815    -0.30369419 ^d@ME<mb  
    Change in Focus                :      -0.109292 U%r|hn3  
         13     0.37164046    -0.17239188 {!>'# F^e  
    Change in Focus                :      -0.692430 ^@HWw@GA  
         14     0.48597489    -0.05805744 51gSbkVX  
    Change in Focus                :      -0.662040 VOGx  
         15     0.21462327    -0.32940907 w\lc;4U   
    Change in Focus                :       1.611296 Pe/8=+qO  
         16     0.43378226    -0.11025008  WJTc/  
    Change in Focus                :      -0.640081 MWq1 "c  
         17     0.39321881    -0.15081353 q#PMQR"C  
    Change in Focus                :       0.914906 6Wk9"?+1  
         18     0.20692530    -0.33710703 J;*2[o.N  
    Change in Focus                :       0.801607 !S#K6:  
         19     0.51374068    -0.03029165 !uW;Ea?  
    Change in Focus                :       0.947293 J b?x-%Za  
         20     0.38013374    -0.16389860 *-X`^R  
    Change in Focus                :       0.667010 Ejt?B')aB5  
    S{jm4LZ  
    Number of traceable Monte Carlo files generated: 20 'l $ViNq;  
    IC:>60A,]  
    Nominal     0.54403234 ok1-`c P  
    Best        0.54384387    Trial     2 K1CgM1v  
    Worst       0.18154684    Trial     4 45Lzq6  
    Mean        0.35770970 BG_6$9y  
    Std Dev     0.11156454 hdDL92JVg  
    kgP6'`}E[  
    d]vom@iI  
    Compensator Statistics: )nlFyWXh.  
    Change in back focus: t~%(Zu>S  
    Minimum            :        -1.354815 *:?XbtIK u  
    Maximum            :         1.611296 "EBCf.3-  
    Mean               :         0.161872 BVG.ZZR})  
    Standard Deviation :         0.869664 }poLH S/  
    KEjMxOv1  
    90% >       0.20977951               8Om4G]*|,  
    80% >       0.22748071               s\e b  
    50% >       0.38667627               7Qd boEa  
    20% >       0.46553746               4m!w<c0NL  
    10% >       0.50064115                 6apK  
    cq~~a(IS  
    End of Run. v;#0h7qd  
    Nz>xilU'  
    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 M>ntldV#g%  
    gjzU%{T ?  
     Y-+JDrK  
    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 L),r\#Y(v  
    D< 0))r  
    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                 e ^ZY  
    80% >       0.22748071                 yd[4l%G(zS  
    50% >       0.38667627                 $,0EV9+af  
    20% >       0.46553746                 @|{8/s Oq  
    10% >       0.50064115 hV&"  
    Z29LtKr  
    最后这个数值是MTF值呢，还是MTF的公差？ Y$9x !kV  
    .>S1do+  
    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:;7'w'  
    cPkP/3I]h  
    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  : ><xmw=  
    90% >       0.20977951                 k~3\0man  
    80% >       0.22748071                 :{VXDT"  
    50% >       0.38667627                 C%{2 sMJz  
    20% >       0.46553746                 r;"D>IM\  
    10% >       0.50064115 ^Wn+G8n  
    ....... !aKu9SR^e  
    kR:kn:  
    \)6bLB!  
    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   <QC7HR  
    Mode                : Sensitivities WRwx[[e6z  
    Sampling            : 2 LI&E.(:  
    Nominal Criterion   : 0.54403234 ^fH)E"qq5  
    Test Wavelength     : 0.6328 :I7mM y*  
    x*RSD,3  
    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？ )UpVGT)  
    j@^zK!mO  
    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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