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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 gt>k]0  
    $eSSW+8q"  
    G*y! Q  
    kWZ@v+Mk3  
    然后添加了默认公差分析，基本没变 vB<2f*U  
    :4\=xGiY  
    R?Ou=p .  
    zn3]vU!  
    然后运行分析的结果如下： azCod1aL{  
    J? 4E Hl  
    Analysis of Tolerances >;NiG)Z  
    f_m~_`m  
    File : E:\光学设计资料\zemax练习\f500.ZMX Z !81\5  
    Title: mzGMYi*  
    Date : TUE JUN 21 2011 W{l{O1,  
    <aR sogu"P  
    Units are Millimeters. o"19{ D^.  
    All changes are computed using linear differences. nQm (UN  
    ahmxbv3f=5  
    Paraxial Focus compensation only. >U9JbkeF  
    @?/>$  
    WARNING: Solves should be removed prior to tolerancing. tmgZNg  
    Vm8rQFCp74  
    Mnemonics: ,bRYqU?#0  
    TFRN: Tolerance on curvature in fringes. .Z9{\tj  
    TTHI: Tolerance on thickness. hf1h*x^J  
    TSDX: Tolerance on surface decentering in x. VEG p!~D  
    TSDY: Tolerance on surface decentering in y. v1aE[Q  
    TSTX: Tolerance on surface tilt in x (degrees). ']__V[  
    TSTY: Tolerance on surface tilt in y (degrees). 8iwH^+h~  
    TIRR: Tolerance on irregularity (fringes). xWuvT,^  
    TIND: Tolerance on Nd index of refraction. UV#DN`%n  
    TEDX: Tolerance on element decentering in x. >V$ S\"  
    TEDY: Tolerance on element decentering in y. ~R*01AnZ  
    TETX: Tolerance on element tilt in x (degrees). tm|YUat$]r  
    TETY: Tolerance on element tilt in y (degrees). Id<O/C  
    %c-T Gr,  
    WARNING: RAY AIMING IS OFF. Very loose tolerances may not be computed accurately. 6=3;(2u[C"  
    gnWEsA\!  
    WARNING: Boundary constraints on compensators will be ignored. r=4vN=:  
    c*DBa]u2  
    Criterion           : Geometric MTF average S&T at 30.0000 cycles per mm *Me&> "N"  
    Mode                : Sensitivities wN2D{Jj  
    Sampling            : 2 m+=L}[  
    Nominal Criterion   : 0.54403234 3T)_(SM"  
    Test Wavelength     : 0.6328 mFx \[S  
    MY>*F[~ 2  
    (/ e[n.T  
    Fields: XY Symmetric Angle in degrees ?d5_{*]+v  
    #      X-Field      Y-Field       Weight    VDX    VDY    VCX    VCY bqcwZ6r<  
    1   0.000E+000   0.000E+000   1.000E+000  0.000  0.000  0.000  0.000 *Kmo1>^  
    Zk<Y+!  
    Sensitivity Analysis: {osadXd C  
    \]Y=*+{  
                     |----------------- Minimum ----------------| |----------------- Maximum ----------------| ZO*?02c  
    Type                      Value      Criterion        Change          Value      Criterion        Change =DsFR9IB  
    Fringe tolerance on surface 1 a2.@Zyz  
    TFRN   1            -1.00000000     0.54257256    -0.00145977     1.00000000     0.54548607     0.00145374 F [S'l  
    Change in Focus                :      -0.000000                            0.000000 m2>$)\-;  
    Fringe tolerance on surface 2 HvJ-P#  
    TFRN   2            -1.00000000     0.54177471    -0.00225762     1.00000000     0.54627463     0.00224230 NhRKP"<CO  
    Change in Focus                :       0.000000                            0.000000 1`F25DhhY  
    Fringe tolerance on surface 3 iNG =x   
    TFRN   3            -1.00000000     0.54779866     0.00376632     1.00000000     0.54022572    -0.00380662 )=Ens=>Z  
    Change in Focus                :      -0.000000                            0.000000 d8N4@3CkL  
    Thickness tolerance on surface 1 #``Alh8  
    TTHI   1   3        -0.20000000     0.54321462    -0.00081772     0.20000000     0.54484759     0.00081525 |TQa=  
    Change in Focus                :       0.000000                            0.000000 -Zfq:Kr  
    Thickness tolerance on surface 2 rvRIKc|}l  
    TTHI   2   3        -0.20000000     0.54478712     0.00075478     0.20000000     0.54327558    -0.00075675 K [R.B!;N  
    Change in Focus                :       0.000000                           -0.000000 0fAo&B  
    Decenter X tolerance on surfaces 1 through 3 "YoFUfaNg  
    TEDX   1   3        -0.20000000     0.54401464   -1.7700E-005     0.20000000     0.54401464   -1.7700E-005 LLU]KZhtY|  
    Change in Focus                :       0.000000                            0.000000 5]F4.sa  
    Decenter Y tolerance on surfaces 1 through 3 5{\;7(  
    TEDY   1   3        -0.20000000     0.54401464   -1.7700E-005     0.20000000     0.54401464   -1.7700E-005 7$A=|/'nSA  
    Change in Focus                :       0.000000                            0.000000 3!Cab/T  
    Tilt X tolerance on surfaces 1 through 3 (degrees) AVi,+n  
    TETX   1   3        -0.20000000     0.54897548     0.00494314     0.20000000     0.54897548     0.00494314 FKU)# Eo  
    Change in Focus                :       0.000000                            0.000000 5-.{RU=  
    Tilt Y tolerance on surfaces 1 through 3 (degrees) Mp_SL^g|  
    TETY   1   3        -0.20000000     0.54897548     0.00494314     0.20000000     0.54897548     0.00494314 5D<"kT  
    Change in Focus                :       0.000000                            0.000000 "VI2--%v3  
    Decenter X tolerance on surface 1 ?, oE_H  
    TSDX   1            -0.20000000     0.53999563    -0.00403671     0.20000000     0.53999563    -0.00403671 <qjolMO`  
    Change in Focus                :       0.000000                            0.000000 (AswV7aGe  
    Decenter Y tolerance on surface 1 'da$i  
    TSDY   1            -0.20000000     0.53999563    -0.00403671     0.20000000     0.53999563    -0.00403671 >fx/TSql:J  
    Change in Focus                :       0.000000                            0.000000 Np>0c -S  
    Tilt X tolerance on surface (degrees) 1 U!i@XA%P  
    TSTX   1            -0.20000000     0.42678383    -0.11724851     0.20000000     0.42678383    -0.11724851 !HSX:qAP$  
    Change in Focus                :       0.000000                            0.000000 P%y$e0  
    Tilt Y tolerance on surface (degrees) 1 o!sHK9hvJ)  
    TSTY   1            -0.20000000     0.42678383    -0.11724851     0.20000000     0.42678383    -0.11724851 :r+F95e  
    Change in Focus                :       0.000000                            0.000000 %Zi}sm1t  
    Decenter X tolerance on surface 2 ,.TwM;w=  
    TSDX   2            -0.20000000     0.51705427    -0.02697807     0.20000000     0.51705427    -0.02697807 6bd{3@   
    Change in Focus                :       0.000000                            0.000000 fk'DJf[M  
    Decenter Y tolerance on surface 2 ^)S<Ha  
    TSDY   2            -0.20000000     0.51705427    -0.02697807     0.20000000     0.51705427    -0.02697807 (Z#j^}G_l  
    Change in Focus                :       0.000000                            0.000000 @i>o+>V  
    Tilt X tolerance on surface (degrees) 2 jFG Y`9Zw0  
    TSTX   2            -0.20000000     0.35349910    -0.19053324     0.20000000     0.35349910    -0.19053324 0khAi|PY  
    Change in Focus                :       0.000000                            0.000000 szas(7kDS  
    Tilt Y tolerance on surface (degrees) 2 KDu~,P]  
    TSTY   2            -0.20000000     0.35349910    -0.19053324     0.20000000     0.35349910    -0.19053324 )( W%Hmi  
    Change in Focus                :       0.000000                            0.000000 'tMS5d)4:  
    Decenter X tolerance on surface 3 j38>5DM6L  
    TSDX   3            -0.20000000     0.53419039    -0.00984195     0.20000000     0.53419039    -0.00984195 c'uDK>  
    Change in Focus                :       0.000000                            0.000000 VNHt ]Ewj  
    Decenter Y tolerance on surface 3 f1X]zk(=W  
    TSDY   3            -0.20000000     0.53419039    -0.00984195     0.20000000     0.53419039    -0.00984195 -|( q 9B  
    Change in Focus                :       0.000000                            0.000000 Qo])A6$IU  
    Tilt X tolerance on surface (degrees) 3 (&xIB F_6  
    TSTX   3            -0.20000000     0.42861670    -0.11541563     0.20000000     0.42861670    -0.11541563 .y2np  
    Change in Focus                :       0.000000                            0.000000 BBHoD:l  
    Tilt Y tolerance on surface (degrees) 3 C)|#z/"  
    TSTY   3            -0.20000000     0.42861670    -0.11541563     0.20000000     0.42861670    -0.11541563 ,Laz515  
    Change in Focus                :       0.000000                            0.000000 ;-d2~1$  
    Irregularity of surface 1 in fringes ^=,N] j  
    TIRR   1            -0.20000000     0.50973587    -0.03429647     0.20000000     0.57333868     0.02930634 LhQidvCNJ  
    Change in Focus                :       0.000000                            0.000000 @h)X3X  
    Irregularity of surface 2 in fringes v0,&wdi  
    TIRR   2            -0.20000000     0.53400904    -0.01002330     0.20000000     0.55360281     0.00957047 DPylc9[-  
    Change in Focus                :       0.000000                            0.000000 * vP:+]  
    Irregularity of surface 3 in fringes _v +At;Y  
    TIRR   3            -0.20000000     0.58078982     0.03675748     0.20000000     0.49904394    -0.04498840 gtJCvVj>g  
    Change in Focus                :       0.000000                            0.000000 _0!<iN L  
    Index tolerance on surface 1 -< }#ImTN  
    TIND   1            -0.00100000     0.52606778    -0.01796456     0.00100000     0.56121811     0.01718578 *>J45U(6:  
    Change in Focus                :       0.000000                            0.000000 &d i=alvv1  
    Index tolerance on surface 2 =8 01nZJ  
    TIND   2            -0.00100000     0.55639086     0.01235852     0.00100000     0.53126361    -0.01276872 28=L9q   
    Change in Focus                :       0.000000                           -0.000000 ^|lG9z%Foy  
    apd"p{  
    Worst offenders: kd+tD!:F(  
    Type                      Value      Criterion        Change am# (ms  
    TSTY   2            -0.20000000     0.35349910    -0.19053324 L0>w|LpRc  
    TSTY   2             0.20000000     0.35349910    -0.19053324 S<nbNSu6+  
    TSTX   2            -0.20000000     0.35349910    -0.19053324 ~)%DiGW&  
    TSTX   2             0.20000000     0.35349910    -0.19053324 ;%Rp=&J  
    TSTY   1            -0.20000000     0.42678383    -0.11724851 <hzuPi@  
    TSTY   1             0.20000000     0.42678383    -0.11724851 .R{+Pz D  
    TSTX   1            -0.20000000     0.42678383    -0.11724851 #u$ Z/,  
    TSTX   1             0.20000000     0.42678383    -0.11724851 n%I9l]  
    TSTY   3            -0.20000000     0.42861670    -0.11541563 uoe>T:  
    TSTY   3             0.20000000     0.42861670    -0.11541563 (5&l<u"K~  
    -`d(>ok  
    Estimated Performance Changes based upon Root-Sum-Square method: I oFtfb[  
    Nominal MTF                 :     0.54403234 LAPC L&Z  
    Estimated change            :    -0.36299231 ]]lM)  
    Estimated MTF               :     0.18104003 xD4G(]d!  
    m`H9^w%W  
    Compensator Statistics: HQtUNtZ  
    Change in back focus: r:9H>4m  
    Minimum            :        -0.000000 wm s@1~I  
    Maximum            :         0.000000 .aE%z/@s=  
    Mean               :        -0.000000 C^!ej"  
    Standard Deviation :         0.000000 DY!mq91  
    ?Qdp#K]WX  
    Monte Carlo Analysis: -[-Ry6G  
    Number of trials: 20 k80!!S=_>  
    77o&$l,A|  
    Initial Statistics: Normal Distribution eKek~U&  
    $,#,yl ol  
      Trial       Criterion        Change J&jig?t  
          1     0.42804416    -0.11598818 O!.mc=Gx7  
    Change in Focus                :      -0.400171 >W?7a:#,  
          2     0.54384387    -0.00018847 3-$w5O3}  
    Change in Focus                :       1.018470 aIABx!83>  
          3     0.44510003    -0.09893230 5"8R|NU:\0  
    Change in Focus                :      -0.601922 6v9A7g;4.  
          4     0.18154684    -0.36248550 %QKRl 5RM-  
    Change in Focus                :       0.920681 Trwk9 +  
          5     0.28665820    -0.25737414 8et.A  
    Change in Focus                :       1.253875 vV+>JM6<K  
          6     0.21263372    -0.33139862 ]z_C7Y"4BR  
    Change in Focus                :      -0.903878 _=68iDXm  
          7     0.40051424    -0.14351809 ]6 vqgu  
    Change in Focus                :      -1.354815 ,Jh('r7  
          8     0.48754161    -0.05649072 6mbHfL>cO  
    Change in Focus                :       0.215922 (VA:`pstP  
          9     0.40357468    -0.14045766 SK_i 3?  
    Change in Focus                :       0.281783 )./.rtP|4  
         10     0.26315315    -0.28087919 (8/Qt\3jv  
    Change in Focus                :      -1.048393 9dXtugp|  
         11     0.26120585    -0.28282649 =D6H?K-k!  
    Change in Focus                :       1.017611 Je~d/,^WU  
         12     0.24033815    -0.30369419 WmT(>JBO  
    Change in Focus                :      -0.109292 GDj ViAFm  
         13     0.37164046    -0.17239188 i&dMX:fRd  
    Change in Focus                :      -0.692430 POCFT0R}  
         14     0.48597489    -0.05805744 k 1   
    Change in Focus                :      -0.662040 58 Rmq/6s  
         15     0.21462327    -0.32940907 V`z2F'vT  
    Change in Focus                :       1.611296 Sk 10"DB/  
         16     0.43378226    -0.11025008 !rMl" Y[  
    Change in Focus                :      -0.640081 pr(16P  
         17     0.39321881    -0.15081353 ]kd )j  
    Change in Focus                :       0.914906 C5jR||  
         18     0.20692530    -0.33710703 k(v8zDq*  
    Change in Focus                :       0.801607 a>{b'X^LV  
         19     0.51374068    -0.03029165 Q9 * N/2+  
    Change in Focus                :       0.947293 `X7ns?  
         20     0.38013374    -0.16389860 _F1{<" 4  
    Change in Focus                :       0.667010 (W l5F  
    uY;2tZldf=  
    Number of traceable Monte Carlo files generated: 20 <NO?B+ ~]  
    Rtl;*ZAS  
    Nominal     0.54403234 $&|*v1rH  
    Best        0.54384387    Trial     2 HLy}ta\  
    Worst       0.18154684    Trial     4 r&|-6OQZZ  
    Mean        0.35770970 d#9"_{P  
    Std Dev     0.11156454  } Rc8\,  
    *0,?QS-a  
    i-EFq@xl  
    Compensator Statistics: ~4~-^ t  
    Change in back focus: )A4WK+yD$z  
    Minimum            :        -1.354815 6*,8 H&  
    Maximum            :         1.611296 +jD{ O @9  
    Mean               :         0.161872 6_wf $(im  
    Standard Deviation :         0.869664 T$'GFA  
    fr0iEO_  
    90% >       0.20977951               Zbp ByRyN  
    80% >       0.22748071               <4W"ne28  
    50% >       0.38667627               Gd~Xvw,u  
    20% >       0.46553746               wOy1i/oj  
    10% >       0.50064115                2dr[0tE  
    .wD>0Ig  
    End of Run. "kKIVlC  
    !j)H !|R  
    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 *My?l75  
    _= _]Yx  
    b-{\manH  
    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 'wAO Y  
    :ji_dQ8k  
    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                 (^eSm]<  
    80% >       0.22748071                 !xMyk>%2  
    50% >       0.38667627                 K/G|MT)  
    20% >       0.46553746                 N40.GL0s  
    10% >       0.50064115 fL"-K  
     KEsMes(*  
    最后这个数值是MTF值呢，还是MTF的公差？ zb~!> QIz{  
    W)V"QrFK  
    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？？？   pq>"GEN  
    El0|.dW  
    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  : BE:HO^-.1  
    90% >       0.20977951                 #)tt}GX  
    80% >       0.22748071                 {XC# -3O  
    50% >       0.38667627                 "D2 `=D!+  
    20% >       0.46553746                 siZw-.  
    10% >       0.50064115 .4^Ep\\  
    ....... M8ZpNa  
    J p!Q2}  
    1xar L))  
    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   |yx]TD{~P  
    Mode                : Sensitivities B?`Gs^Y {z  
    Sampling            : 2 3J32W@}.K  
    Nominal Criterion   : 0.54403234 IKMkpX!]  
    Test Wavelength     : 0.6328 9i*t3W71]  
    B+#!%J_  
    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？ _CO?HX5ek  
    `w` f[dU-  
    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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