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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 'UYR5Y>  
    DrO2y  
    V?=8".GiX  
    ,j$Vvz   
    然后添加了默认公差分析，基本没变 67VT\f  
    Ck!VV2U#  
    ?G -e](]^<  
    zNIsf "  
    然后运行分析的结果如下： B}&xaY  
    u6bXv(  
    Analysis of Tolerances !H}vu]R  
    nTz6LVF  
    File : E:\光学设计资料\zemax练习\f500.ZMX <Ce2r"U1e  
    Title: <0PT"ij  
    Date : TUE JUN 21 2011 yd?x= |  
    -Q U^c2  
    Units are Millimeters. H `(exa:w  
    All changes are computed using linear differences. ^)W[l!!<)  
    cwL1/DGDB  
    Paraxial Focus compensation only. L_K=g_]  
    ~R@Nd~L  
    WARNING: Solves should be removed prior to tolerancing. [NTtz <i@  
    6%VV,$p  
    Mnemonics: 6MxKl D7kl  
    TFRN: Tolerance on curvature in fringes. ?A )hN8  
    TTHI: Tolerance on thickness. YR;^hs?  
    TSDX: Tolerance on surface decentering in x. DmOyBtj  
    TSDY: Tolerance on surface decentering in y. 6KOlY>m]  
    TSTX: Tolerance on surface tilt in x (degrees). _z1(y}u}  
    TSTY: Tolerance on surface tilt in y (degrees). Z%n(O(^L  
    TIRR: Tolerance on irregularity (fringes). &JtV'@>v  
    TIND: Tolerance on Nd index of refraction. q| LDo~H  
    TEDX: Tolerance on element decentering in x. V@\%)J'g  
    TEDY: Tolerance on element decentering in y. W[^qa5W<FB  
    TETX: Tolerance on element tilt in x (degrees). dH^<t,v  
    TETY: Tolerance on element tilt in y (degrees). [ l8jRT=R  
    rQaxr!  
    WARNING: RAY AIMING IS OFF. Very loose tolerances may not be computed accurately. \l@,B +)  
    %3$*K\Ai  
    WARNING: Boundary constraints on compensators will be ignored. ]7/ b/J  
    {je-I9%OK  
    Criterion           : Geometric MTF average S&T at 30.0000 cycles per mm <bD>m[8,  
    Mode                : Sensitivities &|`C)6[C  
    Sampling            : 2 E{n:J3_X^d  
    Nominal Criterion   : 0.54403234 +a*^{l}AST  
    Test Wavelength     : 0.6328 jr3ti>,xV  
    &c*^VL\  
    V,[d66H=N  
    Fields: XY Symmetric Angle in degrees P(K>=O  
    #      X-Field      Y-Field       Weight    VDX    VDY    VCX    VCY e~"fn*"  
    1   0.000E+000   0.000E+000   1.000E+000  0.000  0.000  0.000  0.000 5Fz.Y}  
    2^^=iU=!<|  
    Sensitivity Analysis: A2n qf^b{#  
    %:2+ o'  
                     |----------------- Minimum ----------------| |----------------- Maximum ----------------| >N.]|\V  
    Type                      Value      Criterion        Change          Value      Criterion        Change Y!T %cTK)a  
    Fringe tolerance on surface 1 nQ/E5y  
    TFRN   1            -1.00000000     0.54257256    -0.00145977     1.00000000     0.54548607     0.00145374 shMSN]S_x  
    Change in Focus                :      -0.000000                            0.000000 DK oN}c  
    Fringe tolerance on surface 2 SC- $B  
    TFRN   2            -1.00000000     0.54177471    -0.00225762     1.00000000     0.54627463     0.00224230 eBJUv]o %  
    Change in Focus                :       0.000000                            0.000000 5P'p2x#U  
    Fringe tolerance on surface 3 wGZR31  
    TFRN   3            -1.00000000     0.54779866     0.00376632     1.00000000     0.54022572    -0.00380662 ru7RcYRq  
    Change in Focus                :      -0.000000                            0.000000 _Dwqy(   
    Thickness tolerance on surface 1 @GvztVYo  
    TTHI   1   3        -0.20000000     0.54321462    -0.00081772     0.20000000     0.54484759     0.00081525 >X51$wBL  
    Change in Focus                :       0.000000                            0.000000 ZZyDG9a>7  
    Thickness tolerance on surface 2 U. @*`Fg  
    TTHI   2   3        -0.20000000     0.54478712     0.00075478     0.20000000     0.54327558    -0.00075675 41_SRh7N  
    Change in Focus                :       0.000000                           -0.000000 $\? yAE  
    Decenter X tolerance on surfaces 1 through 3 yA3wtm/?  
    TEDX   1   3        -0.20000000     0.54401464   -1.7700E-005     0.20000000     0.54401464   -1.7700E-005 $*W6A/%O  
    Change in Focus                :       0.000000                            0.000000 1=]kWp`i  
    Decenter Y tolerance on surfaces 1 through 3 dqX;#H}h  
    TEDY   1   3        -0.20000000     0.54401464   -1.7700E-005     0.20000000     0.54401464   -1.7700E-005 sIv)'  
    Change in Focus                :       0.000000                            0.000000 )nd\7|5#  
    Tilt X tolerance on surfaces 1 through 3 (degrees) X7g3  
    TETX   1   3        -0.20000000     0.54897548     0.00494314     0.20000000     0.54897548     0.00494314 Rtjqx6-B;  
    Change in Focus                :       0.000000                            0.000000 ZKdeB3D  
    Tilt Y tolerance on surfaces 1 through 3 (degrees) 2>l,no39t+  
    TETY   1   3        -0.20000000     0.54897548     0.00494314     0.20000000     0.54897548     0.00494314 "rAY.E]  
    Change in Focus                :       0.000000                            0.000000 %xQ.7~  
    Decenter X tolerance on surface 1 _A~4NW{U7  
    TSDX   1            -0.20000000     0.53999563    -0.00403671     0.20000000     0.53999563    -0.00403671 5~yNqC  
    Change in Focus                :       0.000000                            0.000000 2z@\R@F  
    Decenter Y tolerance on surface 1 1lpwZ"  
    TSDY   1            -0.20000000     0.53999563    -0.00403671     0.20000000     0.53999563    -0.00403671 L.=w?%:H=  
    Change in Focus                :       0.000000                            0.000000 )$Z=t-q  
    Tilt X tolerance on surface (degrees) 1 @EoZI~  
    TSTX   1            -0.20000000     0.42678383    -0.11724851     0.20000000     0.42678383    -0.11724851 E~kG2x{a  
    Change in Focus                :       0.000000                            0.000000 ^xZ e2@  
    Tilt Y tolerance on surface (degrees) 1 d;+[i  
    TSTY   1            -0.20000000     0.42678383    -0.11724851     0.20000000     0.42678383    -0.11724851 Z,X'-7YkU  
    Change in Focus                :       0.000000                            0.000000 W<<9y  
    Decenter X tolerance on surface 2 SZ_V^UX_  
    TSDX   2            -0.20000000     0.51705427    -0.02697807     0.20000000     0.51705427    -0.02697807 b,IocD6v;P  
    Change in Focus                :       0.000000                            0.000000 kHv[H]+v  
    Decenter Y tolerance on surface 2 h},oF!,  
    TSDY   2            -0.20000000     0.51705427    -0.02697807     0.20000000     0.51705427    -0.02697807 _e7-zg$/  
    Change in Focus                :       0.000000                            0.000000  P5gN#G  
    Tilt X tolerance on surface (degrees) 2 :h1pBEiH  
    TSTX   2            -0.20000000     0.35349910    -0.19053324     0.20000000     0.35349910    -0.19053324 Eaqca{%/^  
    Change in Focus                :       0.000000                            0.000000 [0UGuj  
    Tilt Y tolerance on surface (degrees) 2 Pe2wsR"_U  
    TSTY   2            -0.20000000     0.35349910    -0.19053324     0.20000000     0.35349910    -0.19053324 Cb:gH}j  
    Change in Focus                :       0.000000                            0.000000 _xLHrT!y  
    Decenter X tolerance on surface 3 Ap$y%6  
    TSDX   3            -0.20000000     0.53419039    -0.00984195     0.20000000     0.53419039    -0.00984195 ++Ww88820  
    Change in Focus                :       0.000000                            0.000000  >Ng)k]G  
    Decenter Y tolerance on surface 3 j8K,jZ  
    TSDY   3            -0.20000000     0.53419039    -0.00984195     0.20000000     0.53419039    -0.00984195 wl1m*`$  
    Change in Focus                :       0.000000                            0.000000 _Zc%z@}  
    Tilt X tolerance on surface (degrees) 3 tV/Z)fpyH  
    TSTX   3            -0.20000000     0.42861670    -0.11541563     0.20000000     0.42861670    -0.11541563 CD0VfA>Z  
    Change in Focus                :       0.000000                            0.000000 T%Pp*1/m7  
    Tilt Y tolerance on surface (degrees) 3 9GdB#k6W`  
    TSTY   3            -0.20000000     0.42861670    -0.11541563     0.20000000     0.42861670    -0.11541563 )J(q49  
    Change in Focus                :       0.000000                            0.000000 auWXgkwZs/  
    Irregularity of surface 1 in fringes D?M!ra  
    TIRR   1            -0.20000000     0.50973587    -0.03429647     0.20000000     0.57333868     0.02930634 C;~*pMAYe  
    Change in Focus                :       0.000000                            0.000000 Hk7K`9  
    Irregularity of surface 2 in fringes _P?\.W@  
    TIRR   2            -0.20000000     0.53400904    -0.01002330     0.20000000     0.55360281     0.00957047 tM j1~ R  
    Change in Focus                :       0.000000                            0.000000 BN,>&1I  
    Irregularity of surface 3 in fringes _#_ E^!  
    TIRR   3            -0.20000000     0.58078982     0.03675748     0.20000000     0.49904394    -0.04498840 _e!F~V.  
    Change in Focus                :       0.000000                            0.000000 voe7l+Xk  
    Index tolerance on surface 1 ]8;n{ }X  
    TIND   1            -0.00100000     0.52606778    -0.01796456     0.00100000     0.56121811     0.01718578  d^|0R  
    Change in Focus                :       0.000000                            0.000000 Pj?Dmk~   
    Index tolerance on surface 2 @InZ<AW>|  
    TIND   2            -0.00100000     0.55639086     0.01235852     0.00100000     0.53126361    -0.01276872 :"o o>  
    Change in Focus                :       0.000000                           -0.000000 k8]O65t|  
    kVS?RHR  
    Worst offenders: "gW7<ilw  
    Type                      Value      Criterion        Change ;o<m}bGaT  
    TSTY   2            -0.20000000     0.35349910    -0.19053324 gBk5wk_j|  
    TSTY   2             0.20000000     0.35349910    -0.19053324 W0cgI9=9  
    TSTX   2            -0.20000000     0.35349910    -0.19053324 VK3it3FI>3  
    TSTX   2             0.20000000     0.35349910    -0.19053324 kJ)gP2E  
    TSTY   1            -0.20000000     0.42678383    -0.11724851 }vt%R.u  
    TSTY   1             0.20000000     0.42678383    -0.11724851 zX7q:Pt  
    TSTX   1            -0.20000000     0.42678383    -0.11724851 nkeI60  
    TSTX   1             0.20000000     0.42678383    -0.11724851 FnHi(S|A  
    TSTY   3            -0.20000000     0.42861670    -0.11541563 C+N F9N  
    TSTY   3             0.20000000     0.42861670    -0.11541563 vs&8wbS)  
    &GWkq>  
    Estimated Performance Changes based upon Root-Sum-Square method: uM(UO,X  
    Nominal MTF                 :     0.54403234 %zo= K}u  
    Estimated change            :    -0.36299231 _2vd`k  
    Estimated MTF               :     0.18104003 I]}>|  
    5 ZfP  
    Compensator Statistics: qI3NkVA'C  
    Change in back focus: sP$Ks#/  
    Minimum            :        -0.000000 T,JA#Rk|1N  
    Maximum            :         0.000000 #NRh\Wj|  
    Mean               :        -0.000000 _ :^ 7a3I  
    Standard Deviation :         0.000000 $1*3!}_0  
    }{],GHCjQ  
    Monte Carlo Analysis: gY9\o#)<  
    Number of trials: 20 x|~zHFm6  
    mxqG-*ch-  
    Initial Statistics: Normal Distribution ] y1fM0  
    _`a&9i &  
      Trial       Criterion        Change XY+y}D %  
          1     0.42804416    -0.11598818 2>hz_o{5',  
    Change in Focus                :      -0.400171 (xyS7q]m  
          2     0.54384387    -0.00018847 keqcV23k  
    Change in Focus                :       1.018470 %c6E-4b  
          3     0.44510003    -0.09893230 hRTMFgO  
    Change in Focus                :      -0.601922 ^abD !8  
          4     0.18154684    -0.36248550 d34Y'r  
    Change in Focus                :       0.920681 F;D1F+S  
          5     0.28665820    -0.25737414 C9KWa*3  
    Change in Focus                :       1.253875 -fIc4u[  
          6     0.21263372    -0.33139862 [6g O  
    Change in Focus                :      -0.903878 MC=G"m:_  
          7     0.40051424    -0.14351809 [N|xzMe  
    Change in Focus                :      -1.354815 QD<eQsvV  
          8     0.48754161    -0.05649072 &2.+I go|G  
    Change in Focus                :       0.215922 # .q#O C  
          9     0.40357468    -0.14045766 Bh`IXu  
    Change in Focus                :       0.281783 F=&;Y@t  
         10     0.26315315    -0.28087919 @"1}16b#f  
    Change in Focus                :      -1.048393 MTmO>V&O  
         11     0.26120585    -0.28282649 `mB.pz[  
    Change in Focus                :       1.017611 )mkS5j`5\  
         12     0.24033815    -0.30369419 7U:=~7GH  
    Change in Focus                :      -0.109292 W (& 6  
         13     0.37164046    -0.17239188 zLek& s&-  
    Change in Focus                :      -0.692430 l_+A5Xy  
         14     0.48597489    -0.05805744 G :4;y7  
    Change in Focus                :      -0.662040 ,k*F`.[  
         15     0.21462327    -0.32940907 !A[S6-18%-  
    Change in Focus                :       1.611296 |NEd@  
         16     0.43378226    -0.11025008 xv0M  
    Change in Focus                :      -0.640081 JE)J<9gf  
         17     0.39321881    -0.15081353 6An{3 "  
    Change in Focus                :       0.914906 !Z/$}xxj  
         18     0.20692530    -0.33710703 sb'p-Mj  
    Change in Focus                :       0.801607 97x%w]kV  
         19     0.51374068    -0.03029165 ?'2 v.5TQt  
    Change in Focus                :       0.947293 %N{sD[^  
         20     0.38013374    -0.16389860  ? ICDIn  
    Change in Focus                :       0.667010 4 =Fg!Eu<  
    v>at/ef  
    Number of traceable Monte Carlo files generated: 20 p\+6"28{_~  
    ^K*-G@B  
    Nominal     0.54403234 $,P\)</ VR  
    Best        0.54384387    Trial     2 t F/nah  
    Worst       0.18154684    Trial     4 (9z|a ,  
    Mean        0.35770970 GYqJ!,  
    Std Dev     0.11156454 BkT-m'I?  
    gfVDqDF  
    KW>VOW<.  
    Compensator Statistics: a4u^f5)@  
    Change in back focus: 08io<c,L  
    Minimum            :        -1.354815 s7|3zqi  
    Maximum            :         1.611296 ;o%:7 &  
    Mean               :         0.161872 ) MBS  
    Standard Deviation :         0.869664 eE,;K1  
    Zsk?QS FE  
    90% >       0.20977951               CK Mv7  
    80% >       0.22748071               pVz pN8!  
    50% >       0.38667627               54wM8'+  
    20% >       0.46553746               )"-fHW+fy  
    10% >       0.50064115                z'e1"Y.  
    fMzYFM'i  
    End of Run. um}N%5GAa  
    &%}6q]e  
    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 wXcMt>3  
    uOb2npPj  
    @?vLAsp\  
    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 7BK46x  
    b_l.QKk  
    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                 N:A3kp  
    80% >       0.22748071                 [Yn;G7cK  
    50% >       0.38667627                 vs+ We*8H  
    20% >       0.46553746                 hzW{_Q.|?  
    10% >       0.50064115 9armirfV'P  
    #i@ACAgn;6  
    最后这个数值是MTF值呢，还是MTF的公差？ yW[L,N7d  
    KxGKA  
    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？？？   )K8P+zn~  
    P4i3y{$V  
    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  : j l;kcGE  
    90% >       0.20977951                 5%2ef{T[  
    80% >       0.22748071                 ,k4z;  
    50% >       0.38667627                 6V.awg,  
    20% >       0.46553746                 X{5v?4wI  
    10% >       0.50064115 &>&dhdTQ  
    ....... =-OCM*5~S  
    f}L>&^I)  
    @ChN_gd3!  
    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   w,M1`RsK  
    Mode                : Sensitivities u#zP>!  
    Sampling            : 2 ;']vY  
    Nominal Criterion   : 0.54403234 sf.E|]isW  
    Test Wavelength     : 0.6328 4FfwpO3,Ku  
    iFAoAw(  
    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？ d&[M8(  
    o*O "\/pmF  
    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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