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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 gBOF#"-  
    y-{?0mLq  
    }s[`T   
    6FY.kN\  
    然后添加了默认公差分析，基本没变 }b]eiPWN  
    `1uGU[{x  
    /0Mt-8[  
    &@=W+A=c~  
    然后运行分析的结果如下： @M"( r"ab  
    -q\Rbb5M  
    Analysis of Tolerances je%D&ci$  
    -b|"%e<'  
    File : E:\光学设计资料\zemax练习\f500.ZMX {nw.bKq 7  
    Title: #Hy\l J  
    Date : TUE JUN 21 2011 w~yC^`  
    '4CD }  
    Units are Millimeters. d4p6.3  
    All changes are computed using linear differences. !t}yoN n|  
    p(nEcu  
    Paraxial Focus compensation only. "C?H:8W  
    =.w~qL  
    WARNING: Solves should be removed prior to tolerancing. >`p? CE  
    d{"@<0i?  
    Mnemonics: hVAatn[  
    TFRN: Tolerance on curvature in fringes. u60RuP&  
    TTHI: Tolerance on thickness. %m+7$iD  
    TSDX: Tolerance on surface decentering in x. P#D|CP/Cu  
    TSDY: Tolerance on surface decentering in y. _!_1=|[  
    TSTX: Tolerance on surface tilt in x (degrees). `3`.usw  
    TSTY: Tolerance on surface tilt in y (degrees). t7Mq>rFB  
    TIRR: Tolerance on irregularity (fringes). 20}w . V  
    TIND: Tolerance on Nd index of refraction. *F!1xyg  
    TEDX: Tolerance on element decentering in x. cL][sI  
    TEDY: Tolerance on element decentering in y. ci/qm\JI<<  
    TETX: Tolerance on element tilt in x (degrees). 3_`)QYU'  
    TETY: Tolerance on element tilt in y (degrees). !qU1RdZ  
    uP(t+}dQ+3  
    WARNING: RAY AIMING IS OFF. Very loose tolerances may not be computed accurately. 9M5W4&  
    r=~K#:66  
    WARNING: Boundary constraints on compensators will be ignored. (.X)=  
    jsx&h Y%(  
    Criterion           : Geometric MTF average S&T at 30.0000 cycles per mm 57=d;Yg e  
    Mode                : Sensitivities WIuYSt)h  
    Sampling            : 2 :Z x|=  
    Nominal Criterion   : 0.54403234 #<Lv&-U<KT  
    Test Wavelength     : 0.6328 E AZX  
    2pU'&8  
    *ra>Kl0   
    Fields: XY Symmetric Angle in degrees ;8dffsyq  
    #      X-Field      Y-Field       Weight    VDX    VDY    VCX    VCY |:.Uw\z5'  
    1   0.000E+000   0.000E+000   1.000E+000  0.000  0.000  0.000  0.000 R PoBF~>  
    vZ811U~}  
    Sensitivity Analysis: ?$T^L"~  
    kkWv#,qwU  
                     |----------------- Minimum ----------------| |----------------- Maximum ----------------| g6;smtu_T  
    Type                      Value      Criterion        Change          Value      Criterion        Change YB<nz<;JR  
    Fringe tolerance on surface 1 MtaGv#mJ  
    TFRN   1            -1.00000000     0.54257256    -0.00145977     1.00000000     0.54548607     0.00145374 +:4>4=  
    Change in Focus                :      -0.000000                            0.000000 <U1T_fiBoc  
    Fringe tolerance on surface 2 9} m?E<6&  
    TFRN   2            -1.00000000     0.54177471    -0.00225762     1.00000000     0.54627463     0.00224230 m#Z&05^  
    Change in Focus                :       0.000000                            0.000000 2QM{e!9  
    Fringe tolerance on surface 3 {-8Nq`w  
    TFRN   3            -1.00000000     0.54779866     0.00376632     1.00000000     0.54022572    -0.00380662 %ut 8/T  
    Change in Focus                :      -0.000000                            0.000000 #QIY+muN  
    Thickness tolerance on surface 1 $#p5BQQ|  
    TTHI   1   3        -0.20000000     0.54321462    -0.00081772     0.20000000     0.54484759     0.00081525 I`H&b& .`  
    Change in Focus                :       0.000000                            0.000000 1[8^JVC>6  
    Thickness tolerance on surface 2 s)`(@"{  
    TTHI   2   3        -0.20000000     0.54478712     0.00075478     0.20000000     0.54327558    -0.00075675 2xflRks  
    Change in Focus                :       0.000000                           -0.000000 $ P 5K   
    Decenter X tolerance on surfaces 1 through 3 {H)hoAenA  
    TEDX   1   3        -0.20000000     0.54401464   -1.7700E-005     0.20000000     0.54401464   -1.7700E-005 PJ0~ymE1~G  
    Change in Focus                :       0.000000                            0.000000 |Z{#DOT  
    Decenter Y tolerance on surfaces 1 through 3 HY FMf3  
    TEDY   1   3        -0.20000000     0.54401464   -1.7700E-005     0.20000000     0.54401464   -1.7700E-005 vxTn  
    Change in Focus                :       0.000000                            0.000000 PA ?2K4  
    Tilt X tolerance on surfaces 1 through 3 (degrees) wbrOL(q.m  
    TETX   1   3        -0.20000000     0.54897548     0.00494314     0.20000000     0.54897548     0.00494314 $q z{L~ <  
    Change in Focus                :       0.000000                            0.000000 't&1y6Uu  
    Tilt Y tolerance on surfaces 1 through 3 (degrees) TB* t^ E  
    TETY   1   3        -0.20000000     0.54897548     0.00494314     0.20000000     0.54897548     0.00494314  Ux*xz|^  
    Change in Focus                :       0.000000                            0.000000 xc 1d[dCdp  
    Decenter X tolerance on surface 1 "Zh,;)hS  
    TSDX   1            -0.20000000     0.53999563    -0.00403671     0.20000000     0.53999563    -0.00403671 _ia&|#n  
    Change in Focus                :       0.000000                            0.000000 o>C,Db~L/  
    Decenter Y tolerance on surface 1 v:QUwW  
    TSDY   1            -0.20000000     0.53999563    -0.00403671     0.20000000     0.53999563    -0.00403671 F:T(-,  
    Change in Focus                :       0.000000                            0.000000 Tp?IK_  
    Tilt X tolerance on surface (degrees) 1 $q:l \  
    TSTX   1            -0.20000000     0.42678383    -0.11724851     0.20000000     0.42678383    -0.11724851 :?\29j#*V  
    Change in Focus                :       0.000000                            0.000000 t!Cz;ajNi  
    Tilt Y tolerance on surface (degrees) 1 #%@bZ f  
    TSTY   1            -0.20000000     0.42678383    -0.11724851     0.20000000     0.42678383    -0.11724851 CLzF84@W=  
    Change in Focus                :       0.000000                            0.000000 !DFTg 4xb  
    Decenter X tolerance on surface 2 ~6n|GxR.[  
    TSDX   2            -0.20000000     0.51705427    -0.02697807     0.20000000     0.51705427    -0.02697807 YiO}"  
    Change in Focus                :       0.000000                            0.000000 /~u^@@.  
    Decenter Y tolerance on surface 2 xOKJOl  
    TSDY   2            -0.20000000     0.51705427    -0.02697807     0.20000000     0.51705427    -0.02697807 "h_f- vP  
    Change in Focus                :       0.000000                            0.000000 ,$:u^;V(  
    Tilt X tolerance on surface (degrees) 2 eLPtdP5k  
    TSTX   2            -0.20000000     0.35349910    -0.19053324     0.20000000     0.35349910    -0.19053324 O=7S=Rm4&  
    Change in Focus                :       0.000000                            0.000000 \ YF@r7  
    Tilt Y tolerance on surface (degrees) 2 S1Y,5,}  
    TSTY   2            -0.20000000     0.35349910    -0.19053324     0.20000000     0.35349910    -0.19053324 |.$B,cEd  
    Change in Focus                :       0.000000                            0.000000 5X)QW5A  
    Decenter X tolerance on surface 3 l+F29_o#  
    TSDX   3            -0.20000000     0.53419039    -0.00984195     0.20000000     0.53419039    -0.00984195 -%MXt  
    Change in Focus                :       0.000000                            0.000000 !9PAfi?  
    Decenter Y tolerance on surface 3 %C,zR&]F  
    TSDY   3            -0.20000000     0.53419039    -0.00984195     0.20000000     0.53419039    -0.00984195 "[~yu* S  
    Change in Focus                :       0.000000                            0.000000 k1xx>=md|C  
    Tilt X tolerance on surface (degrees) 3 H"? 5]!p  
    TSTX   3            -0.20000000     0.42861670    -0.11541563     0.20000000     0.42861670    -0.11541563 a5/, O4Q  
    Change in Focus                :       0.000000                            0.000000 E/oLE^yL  
    Tilt Y tolerance on surface (degrees) 3 #~-Xt! I  
    TSTY   3            -0.20000000     0.42861670    -0.11541563     0.20000000     0.42861670    -0.11541563 *W\3cS  
    Change in Focus                :       0.000000                            0.000000 , 4xNW:!j  
    Irregularity of surface 1 in fringes j[:70%X  
    TIRR   1            -0.20000000     0.50973587    -0.03429647     0.20000000     0.57333868     0.02930634 'uL$j=vB  
    Change in Focus                :       0.000000                            0.000000 @NA+Ma{N  
    Irregularity of surface 2 in fringes |e@1@q(a[]  
    TIRR   2            -0.20000000     0.53400904    -0.01002330     0.20000000     0.55360281     0.00957047 ,dQ*0XO!  
    Change in Focus                :       0.000000                            0.000000 }C_g;7*  
    Irregularity of surface 3 in fringes E*5aLT5!,  
    TIRR   3            -0.20000000     0.58078982     0.03675748     0.20000000     0.49904394    -0.04498840 8Pa*d/5Y(  
    Change in Focus                :       0.000000                            0.000000 ^2$b8]q  
    Index tolerance on surface 1 A"M;kzAfHM  
    TIND   1            -0.00100000     0.52606778    -0.01796456     0.00100000     0.56121811     0.01718578 U.SC,;N^  
    Change in Focus                :       0.000000                            0.000000 rBmW%Gv  
    Index tolerance on surface 2 k8}fKVU;  
    TIND   2            -0.00100000     0.55639086     0.01235852     0.00100000     0.53126361    -0.01276872 4z5qXI/<m4  
    Change in Focus                :       0.000000                           -0.000000 9D\E0YG X/  
    j:1N&7<FU  
    Worst offenders: 6/L[`n"G  
    Type                      Value      Criterion        Change uo]\L^j   
    TSTY   2            -0.20000000     0.35349910    -0.19053324 ;~:Z~8+{c  
    TSTY   2             0.20000000     0.35349910    -0.19053324 2EpQ(G J  
    TSTX   2            -0.20000000     0.35349910    -0.19053324 yOlVS@7  
    TSTX   2             0.20000000     0.35349910    -0.19053324 ) 6QJZ$  
    TSTY   1            -0.20000000     0.42678383    -0.11724851 $!9U\Au>2  
    TSTY   1             0.20000000     0.42678383    -0.11724851 H4 O"^#5  
    TSTX   1            -0.20000000     0.42678383    -0.11724851 2*w`l|Sx  
    TSTX   1             0.20000000     0.42678383    -0.11724851 }GURq#  
    TSTY   3            -0.20000000     0.42861670    -0.11541563 kYkA^Aq  
    TSTY   3             0.20000000     0.42861670    -0.11541563 6/wC StZ  
    E]~ #EFc  
    Estimated Performance Changes based upon Root-Sum-Square method: GPh;r7xg6  
    Nominal MTF                 :     0.54403234 Vbp@n  
    Estimated change            :    -0.36299231 F-:AT$Ok  
    Estimated MTF               :     0.18104003 ?SYmsaSr5  
    U~yPQ8jD  
    Compensator Statistics: igTs[q=Ak  
    Change in back focus: sYXLVJ>b  
    Minimum            :        -0.000000 E.m2- P;4  
    Maximum            :         0.000000 J)Yz@0#T(;  
    Mean               :        -0.000000 2<J2#}+ \  
    Standard Deviation :         0.000000 /PaS <"<P@  
    [AFR \{  
    Monte Carlo Analysis: ECL{`m(#n  
    Number of trials: 20 8SroA$^n  
    30I-E ._F  
    Initial Statistics: Normal Distribution ? }ff O  
    <^> nR3E  
      Trial       Criterion        Change Da[#X`Kp$  
          1     0.42804416    -0.11598818 (bI/s'?K  
    Change in Focus                :      -0.400171 gAEB  
          2     0.54384387    -0.00018847 L:&'z:,<  
    Change in Focus                :       1.018470 <n k/w5nKL  
          3     0.44510003    -0.09893230 E]vox~xK>  
    Change in Focus                :      -0.601922 GKWsJO5 n  
          4     0.18154684    -0.36248550 *\:sHVyG(  
    Change in Focus                :       0.920681 /z!y[ri+J  
          5     0.28665820    -0.25737414 s^PsA9EAn  
    Change in Focus                :       1.253875 ,tZL"  
          6     0.21263372    -0.33139862 8H};pu2  
    Change in Focus                :      -0.903878 I+Yq",{%  
          7     0.40051424    -0.14351809 _Ad63.Uq))  
    Change in Focus                :      -1.354815 VPO~veQ  
          8     0.48754161    -0.05649072 ^ux'-/  
    Change in Focus                :       0.215922 N@X6Z!EO  
          9     0.40357468    -0.14045766 zI ^:{]p  
    Change in Focus                :       0.281783 G 9 &,`  
         10     0.26315315    -0.28087919 4yTgH0(T  
    Change in Focus                :      -1.048393 Ed0}$ b  
         11     0.26120585    -0.28282649 8.wtv5eZ  
    Change in Focus                :       1.017611 mg._c  
         12     0.24033815    -0.30369419 =s.0 f:(  
    Change in Focus                :      -0.109292 vY4}vHH2  
         13     0.37164046    -0.17239188 LrdED[Z  
    Change in Focus                :      -0.692430 1)97AkN(O  
         14     0.48597489    -0.05805744 e+#k\x   
    Change in Focus                :      -0.662040 By[M|4a  
         15     0.21462327    -0.32940907 _'y`hKeI[  
    Change in Focus                :       1.611296 ,bM):  
         16     0.43378226    -0.11025008 -e"kJd&V  
    Change in Focus                :      -0.640081 ntPX?/  
         17     0.39321881    -0.15081353 k`'*niz  
    Change in Focus                :       0.914906 VL"Cxs  
         18     0.20692530    -0.33710703 ~A%+oa*2~  
    Change in Focus                :       0.801607 W%&s$b(  
         19     0.51374068    -0.03029165 XCxxm3t  
    Change in Focus                :       0.947293 e1V1Ae  
         20     0.38013374    -0.16389860 7z\ #"~(.  
    Change in Focus                :       0.667010 rN.8-  
    icVB?M,m  
    Number of traceable Monte Carlo files generated: 20 "Il) _Ui  
    O\=Zo9(NHF  
    Nominal     0.54403234 /Wl8Jf7'  
    Best        0.54384387    Trial     2  (t@!0_5  
    Worst       0.18154684    Trial     4 vaVV 1  
    Mean        0.35770970 L|b[6[XTHL  
    Std Dev     0.11156454 hhU\$'0B-  
    !"hzGgOOX  
    yP` K [/  
    Compensator Statistics: f4 +P2j  
    Change in back focus: q JtLJ<=1  
    Minimum            :        -1.354815 211T}a  
    Maximum            :         1.611296 [T [] U   
    Mean               :         0.161872 :1"k`AG  
    Standard Deviation :         0.869664 @x[A ^  
    +4qR5(W  
    90% >       0.20977951               heWQPM|s  
    80% >       0.22748071               EK Q>hww8  
    50% >       0.38667627               Ui1s ]R  
    20% >       0.46553746               i>-#QKqJ  
    10% >       0.50064115                y La E]  
    8NNs_~+x}  
    End of Run. 8aM\B%NGWi  
    Azr|cKu]  
    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 rY@9nQ\>g  
    O^ &m  
    Bk5 ELf8pL  
    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 _2<UcC~  
    ~GJ;;v1b2  
    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                 A9J{>f  
    80% >       0.22748071                 z_A\\  
    50% >       0.38667627                 X(8LhsP  
    20% >       0.46553746                 nKEw$~F  
    10% >       0.50064115 OJM2t`}_t  
    _)YB*z5  
    最后这个数值是MTF值呢，还是MTF的公差？ VpY,@qh  
    B T {cTj0W  
    也就是说，这到底是有90%的产品MTF大于0.20977951还是90%的产品的MTF变化量大于0.20977951？？？   0=40}n&`  
    kK:Wr&X0H  
    怎么没人啊，大家讨论讨论吗
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    只看该作者 3楼 发表于: 2011-06-23
    没有人啊？？？
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    只看该作者 4楼 发表于: 2011-06-23
    引用第2楼sansummer于2011-06-22 08:56发表的  : ZcTjOy?  
    90% >       0.20977951                 L EFLKC  
    80% >       0.22748071                 G2P:|R  
    50% >       0.38667627                 p&HO~J <w  
    20% >       0.46553746                 <HpUP!q8v  
    10% >       0.50064115 (>lH=&%zj  
    ....... 8;f5;7M n  
    'Ddzlip  
    >m%7dU  
    这些数值都是MTF值
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    只看该作者 5楼 发表于: 2011-06-23
    Criterion           : Geometric MTF average S&T at 30.0000 cycles per mm   dqFp"Xe"%  
    Mode                : Sensitivities M+lr [,c  
    Sampling            : 2 G%K&f1q%  
    Nominal Criterion   : 0.54403234 t7,$u-  
    Test Wavelength     : 0.6328 Gj[5e w?@  
    -%V~ 1  
    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？ ##Qy6Dc  
    nu2m5RYx  
    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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    离线天地大同
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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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