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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 1!v >I"]  
    Q'Jpsmwu  
    $Zu4tuXA  
    2AdHj&XE  
    然后添加了默认公差分析，基本没变 Bc9|rlV,  
    xdTzG4  
    dC;d>j,  
    D^R! |K/  
    然后运行分析的结果如下： (EF$^FYPK  
    MS*Mem,  
    Analysis of Tolerances l<)JAT;P  
    \<MTY:  
    File : E:\光学设计资料\zemax练习\f500.ZMX vsr~[d=  
    Title: ]zM90$6  
    Date : TUE JUN 21 2011 n4d(`  
    *!7SM 7  
    Units are Millimeters.  C>K"ZJ  
    All changes are computed using linear differences. ZsK'</7  
    2QuypVC ]  
    Paraxial Focus compensation only. PRf\6   
    t;a}p_>  
    WARNING: Solves should be removed prior to tolerancing. HjF'~n  
     ;;"c+  
    Mnemonics: 7[?}kG   
    TFRN: Tolerance on curvature in fringes. Z`1o#yZ  
    TTHI: Tolerance on thickness. CPCB!8-5  
    TSDX: Tolerance on surface decentering in x. @SVEhk#  
    TSDY: Tolerance on surface decentering in y. va*>q-QCr  
    TSTX: Tolerance on surface tilt in x (degrees). K v>#  
    TSTY: Tolerance on surface tilt in y (degrees). NNpa69U  
    TIRR: Tolerance on irregularity (fringes). >5@ 0lYhH  
    TIND: Tolerance on Nd index of refraction. W!9f'Yn  
    TEDX: Tolerance on element decentering in x. Yr(f iI  
    TEDY: Tolerance on element decentering in y. +iDz+3v(  
    TETX: Tolerance on element tilt in x (degrees). 93p9?4;n-  
    TETY: Tolerance on element tilt in y (degrees). WE8L?55_Au  
    ljR?* P  
    WARNING: RAY AIMING IS OFF. Very loose tolerances may not be computed accurately. 1nM?>j%k  
    %^@0tT  
    WARNING: Boundary constraints on compensators will be ignored. l=OC?d*m  
    %$-3fj7  
    Criterion           : Geometric MTF average S&T at 30.0000 cycles per mm k}a!lI:  
    Mode                : Sensitivities Q]koj!mMl  
    Sampling            : 2 9lwo/(s  
    Nominal Criterion   : 0.54403234 HBkQ`T  
    Test Wavelength     : 0.6328 sAAIyPJts  
    o>k-~v7  
    @P*P8v8:  
    Fields: XY Symmetric Angle in degrees AE@Rn(1.  
    #      X-Field      Y-Field       Weight    VDX    VDY    VCX    VCY ' xq5tRg>  
    1   0.000E+000   0.000E+000   1.000E+000  0.000  0.000  0.000  0.000 M(f*hOG{Y  
    ;0}"2aGY  
    Sensitivity Analysis: .;sPG  
    Tf]VcEF  
                     |----------------- Minimum ----------------| |----------------- Maximum ----------------| -8J@r2\  
    Type                      Value      Criterion        Change          Value      Criterion        Change gG z_t,=  
    Fringe tolerance on surface 1 |8?{JKsg  
    TFRN   1            -1.00000000     0.54257256    -0.00145977     1.00000000     0.54548607     0.00145374 YO4ppL~xe  
    Change in Focus                :      -0.000000                            0.000000 vP;tgW9Qk  
    Fringe tolerance on surface 2 3mn-dKe((  
    TFRN   2            -1.00000000     0.54177471    -0.00225762     1.00000000     0.54627463     0.00224230 /|^^v DL  
    Change in Focus                :       0.000000                            0.000000 j{+I~|ZB,  
    Fringe tolerance on surface 3 =:}DD0o*  
    TFRN   3            -1.00000000     0.54779866     0.00376632     1.00000000     0.54022572    -0.00380662 \}&w/.T  
    Change in Focus                :      -0.000000                            0.000000 Xpz-@fqKdf  
    Thickness tolerance on surface 1 o~N-x*   
    TTHI   1   3        -0.20000000     0.54321462    -0.00081772     0.20000000     0.54484759     0.00081525 F>{uB!!L4  
    Change in Focus                :       0.000000                            0.000000 |&*rSp2iH  
    Thickness tolerance on surface 2 #Yb9w3N  
    TTHI   2   3        -0.20000000     0.54478712     0.00075478     0.20000000     0.54327558    -0.00075675 ~x#-#nuh"  
    Change in Focus                :       0.000000                           -0.000000 <^$b1<@  
    Decenter X tolerance on surfaces 1 through 3 R1%T>2"~&  
    TEDX   1   3        -0.20000000     0.54401464   -1.7700E-005     0.20000000     0.54401464   -1.7700E-005 QLLV OJi  
    Change in Focus                :       0.000000                            0.000000 ^g"6p#S=n  
    Decenter Y tolerance on surfaces 1 through 3 UE](`|4H  
    TEDY   1   3        -0.20000000     0.54401464   -1.7700E-005     0.20000000     0.54401464   -1.7700E-005 xGQ:7g+qu  
    Change in Focus                :       0.000000                            0.000000 6h"? 3w  
    Tilt X tolerance on surfaces 1 through 3 (degrees) ;{u#~d}  
    TETX   1   3        -0.20000000     0.54897548     0.00494314     0.20000000     0.54897548     0.00494314 e"09b<69  
    Change in Focus                :       0.000000                            0.000000 e/l?|+m 6  
    Tilt Y tolerance on surfaces 1 through 3 (degrees) l@9:V hU(  
    TETY   1   3        -0.20000000     0.54897548     0.00494314     0.20000000     0.54897548     0.00494314 ~oyPmIcb  
    Change in Focus                :       0.000000                            0.000000 4h@of'  
    Decenter X tolerance on surface 1 bJ[1'Es `  
    TSDX   1            -0.20000000     0.53999563    -0.00403671     0.20000000     0.53999563    -0.00403671 @y%qQe/g  
    Change in Focus                :       0.000000                            0.000000 1KEPD@0oxx  
    Decenter Y tolerance on surface 1 BbhdGFG1  
    TSDY   1            -0.20000000     0.53999563    -0.00403671     0.20000000     0.53999563    -0.00403671 ?7dDQI7^(  
    Change in Focus                :       0.000000                            0.000000 gKEvgXOj  
    Tilt X tolerance on surface (degrees) 1 3Q6#m3AWY  
    TSTX   1            -0.20000000     0.42678383    -0.11724851     0.20000000     0.42678383    -0.11724851 r+obm)Qtp  
    Change in Focus                :       0.000000                            0.000000 "A$Y)j<#G  
    Tilt Y tolerance on surface (degrees) 1 0;`PHNBq  
    TSTY   1            -0.20000000     0.42678383    -0.11724851     0.20000000     0.42678383    -0.11724851 UzRF'<TWf  
    Change in Focus                :       0.000000                            0.000000 g[Y$SgJ  
    Decenter X tolerance on surface 2 ZuON@(  
    TSDX   2            -0.20000000     0.51705427    -0.02697807     0.20000000     0.51705427    -0.02697807 Kn]WXc|("  
    Change in Focus                :       0.000000                            0.000000 A~t7I{`  
    Decenter Y tolerance on surface 2 &Vm[5XW  
    TSDY   2            -0.20000000     0.51705427    -0.02697807     0.20000000     0.51705427    -0.02697807 UY^f|f&  
    Change in Focus                :       0.000000                            0.000000 b?^<';,5  
    Tilt X tolerance on surface (degrees) 2 ?q6eV~P  
    TSTX   2            -0.20000000     0.35349910    -0.19053324     0.20000000     0.35349910    -0.19053324 8BdeqgU/_  
    Change in Focus                :       0.000000                            0.000000 }gt~{9?c  
    Tilt Y tolerance on surface (degrees) 2 L32ki}2  
    TSTY   2            -0.20000000     0.35349910    -0.19053324     0.20000000     0.35349910    -0.19053324 &}?e:PEy  
    Change in Focus                :       0.000000                            0.000000 1 1'Tt!  
    Decenter X tolerance on surface 3 'f!Jh<i  
    TSDX   3            -0.20000000     0.53419039    -0.00984195     0.20000000     0.53419039    -0.00984195 3Pq)RD|hn  
    Change in Focus                :       0.000000                            0.000000 Q?q m~wD  
    Decenter Y tolerance on surface 3 e$h\7i:(  
    TSDY   3            -0.20000000     0.53419039    -0.00984195     0.20000000     0.53419039    -0.00984195 43fA;Uc{Y`  
    Change in Focus                :       0.000000                            0.000000 [!$>:_Vq/  
    Tilt X tolerance on surface (degrees) 3 :@L5=2Z+  
    TSTX   3            -0.20000000     0.42861670    -0.11541563     0.20000000     0.42861670    -0.11541563 HyMb-Us  
    Change in Focus                :       0.000000                            0.000000 Melc -[  
    Tilt Y tolerance on surface (degrees) 3 l{yPO@ut`F  
    TSTY   3            -0.20000000     0.42861670    -0.11541563     0.20000000     0.42861670    -0.11541563 MS)bhZvO  
    Change in Focus                :       0.000000                            0.000000 pu#<qD*w  
    Irregularity of surface 1 in fringes NoIdO/vy"  
    TIRR   1            -0.20000000     0.50973587    -0.03429647     0.20000000     0.57333868     0.02930634 G)`MoVH1  
    Change in Focus                :       0.000000                            0.000000 1jb@n xRjO  
    Irregularity of surface 2 in fringes b /ySt<  
    TIRR   2            -0.20000000     0.53400904    -0.01002330     0.20000000     0.55360281     0.00957047 cke[SUH,  
    Change in Focus                :       0.000000                            0.000000 i vk|-C'\  
    Irregularity of surface 3 in fringes e76)z; '  
    TIRR   3            -0.20000000     0.58078982     0.03675748     0.20000000     0.49904394    -0.04498840 .})8gL7 V  
    Change in Focus                :       0.000000                            0.000000 pq`MO .R  
    Index tolerance on surface 1 XUHY.M  
    TIND   1            -0.00100000     0.52606778    -0.01796456     0.00100000     0.56121811     0.01718578 }8e %s;C  
    Change in Focus                :       0.000000                            0.000000 ]QQ"7_+  
    Index tolerance on surface 2 HB^azHr  
    TIND   2            -0.00100000     0.55639086     0.01235852     0.00100000     0.53126361    -0.01276872 u,q#-d0g;  
    Change in Focus                :       0.000000                           -0.000000 T@XiG:b7  
    +d96Z^KUhv  
    Worst offenders: VP&lWPA}\$  
    Type                      Value      Criterion        Change [8n4lE[)"  
    TSTY   2            -0.20000000     0.35349910    -0.19053324 HmKE>C/  
    TSTY   2             0.20000000     0.35349910    -0.19053324 IU}`5+:m  
    TSTX   2            -0.20000000     0.35349910    -0.19053324 5 Da( DA  
    TSTX   2             0.20000000     0.35349910    -0.19053324  w4mL/j  
    TSTY   1            -0.20000000     0.42678383    -0.11724851 MJoC*8QxM  
    TSTY   1             0.20000000     0.42678383    -0.11724851 Os;\\~e5  
    TSTX   1            -0.20000000     0.42678383    -0.11724851 `x3c},'@k  
    TSTX   1             0.20000000     0.42678383    -0.11724851 I`l< }M  
    TSTY   3            -0.20000000     0.42861670    -0.11541563 ;'urt /  
    TSTY   3             0.20000000     0.42861670    -0.11541563 ho. a93  
    7y&`H  
    Estimated Performance Changes based upon Root-Sum-Square method: FE.:h'^h  
    Nominal MTF                 :     0.54403234 .u&g2Y  
    Estimated change            :    -0.36299231 g=wnly  
    Estimated MTF               :     0.18104003 >?tpGEZ\  
    ijfT!W  
    Compensator Statistics: :>z0m 0nI\  
    Change in back focus: ~yV0SpL  
    Minimum            :        -0.000000 j~0hAKHG  
    Maximum            :         0.000000 d!cx%[  
    Mean               :        -0.000000 i&#c+iTH  
    Standard Deviation :         0.000000 ,==lgM2V>  
    lK0coj1+  
    Monte Carlo Analysis: T^ -RP  
    Number of trials: 20 b~-9u5.L1  
    &%<G2x$  
    Initial Statistics: Normal Distribution W=drp>Uj  
    hO8B]4=&*  
      Trial       Criterion        Change fsu'W]f  
          1     0.42804416    -0.11598818 Bs*s8}6  
    Change in Focus                :      -0.400171 \BA_PyS?W+  
          2     0.54384387    -0.00018847 .+.Pc_fv  
    Change in Focus                :       1.018470 sE% n=Ww  
          3     0.44510003    -0.09893230 >*&[bW'}?  
    Change in Focus                :      -0.601922 xYbF76B  
          4     0.18154684    -0.36248550 %O-wMl  
    Change in Focus                :       0.920681 q-H ]Hxv  
          5     0.28665820    -0.25737414 AyWCb  
    Change in Focus                :       1.253875 3JwmLGj}  
          6     0.21263372    -0.33139862 RAvV[QkT  
    Change in Focus                :      -0.903878 =6'A8d  
          7     0.40051424    -0.14351809 l\H9Io3  
    Change in Focus                :      -1.354815 NW$Z}?I  
          8     0.48754161    -0.05649072 Mppb34y  
    Change in Focus                :       0.215922 "dIoIW  
          9     0.40357468    -0.14045766 iVA_a8}  
    Change in Focus                :       0.281783 `C3F?Lch  
         10     0.26315315    -0.28087919 iIg_S13  
    Change in Focus                :      -1.048393 5}f$O  
         11     0.26120585    -0.28282649 vjWS35i  
    Change in Focus                :       1.017611 i^yQ; 2 -  
         12     0.24033815    -0.30369419 Xo P]PR`cQ  
    Change in Focus                :      -0.109292 &}WSfZ0{  
         13     0.37164046    -0.17239188 l`d=sOB^  
    Change in Focus                :      -0.692430 8I*fPf  
         14     0.48597489    -0.05805744 K/altyj`  
    Change in Focus                :      -0.662040 |b|p0Z%7{  
         15     0.21462327    -0.32940907 ]>!]X*\9  
    Change in Focus                :       1.611296 18~j>fN  
         16     0.43378226    -0.11025008 F$.M2*9  
    Change in Focus                :      -0.640081 M C>{I3  
         17     0.39321881    -0.15081353 ZC05^  
    Change in Focus                :       0.914906 !JJY ( o  
         18     0.20692530    -0.33710703 +:D0tYk2B  
    Change in Focus                :       0.801607 c#_%|gg  
         19     0.51374068    -0.03029165 |(Sqd;#v  
    Change in Focus                :       0.947293 Mv_4*xVc  
         20     0.38013374    -0.16389860 8YCtU9D  
    Change in Focus                :       0.667010 qk+:p]2  
    a XwFQ,  
    Number of traceable Monte Carlo files generated: 20 h)sc-e  
    rLp0VKPe  
    Nominal     0.54403234 ezFyd'P  
    Best        0.54384387    Trial     2 ]^dXB 0  
    Worst       0.18154684    Trial     4 R5Ti|k.~Y"  
    Mean        0.35770970 h.PY$W<  
    Std Dev     0.11156454 bBGLf)fsTG  
    X)\t=><<  
    |= ~9y"F  
    Compensator Statistics: Fq~de%y  
    Change in back focus: O -@7n0  
    Minimum            :        -1.354815 (ue;O~  
    Maximum            :         1.611296 5<9}{X+@o  
    Mean               :         0.161872 F&Q:1`y  
    Standard Deviation :         0.869664 azN<]u@.  
    K@+&5\y]  
    90% >       0.20977951               5'6Oan7dL:  
    80% >       0.22748071               "zfy_h  
    50% >       0.38667627               eP6>a7gc  
    20% >       0.46553746               B \BP:;"  
    10% >       0.50064115                .^uNzN~  
    @qI^xs=Z  
    End of Run. .F |yxj;I7  
    tMC<\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 }{HlY?S  
    b16\2%Ea1  
    K-sJnQ23'  
    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 T2GJoJ!  
    zGA#7W2?0  
    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                 !o1+#DL)MU  
    80% >       0.22748071                 '9.L5*wh]  
    50% >       0.38667627                 XOsuRI ?  
    20% >       0.46553746                 5LMAy"  
    10% >       0.50064115 ?)X 0l  
    {S,L %  
    最后这个数值是MTF值呢，还是MTF的公差？ a'r8J~:jy  
    5bBY[qp  
    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？？？   sYE|  
    {el,CT#  
    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  : fL(_V/p^  
    90% >       0.20977951                 >zX`qv&>  
    80% >       0.22748071                 lK Ry4~O  
    50% >       0.38667627                 -[}AhNYK  
    20% >       0.46553746                 HC!5AJ&+}v  
    10% >       0.50064115 @Ta0v:Y  
    ....... o)WzZ,\F^J  
    s{uSU1lQn  
    0u}+n+\g  
    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   \2Yo*jE}  
    Mode                : Sensitivities Bo4iX,zu  
    Sampling            : 2 Ow 0(q^H<  
    Nominal Criterion   : 0.54403234 <YAs0  
    Test Wavelength     : 0.6328 |Hv8GT  
    k r5'E#  
    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？ 2,rjy|R`  
    Q"k #eEA  
    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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