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    [讨论]公差分析结果的疑问 [复制链接]

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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 ?#c "wA&  
    De 3;}]wC  
    B (eXWWT_  
    :*g$@T   
    然后添加了默认公差分析，基本没变 +)h# !/  
    1\Bh-tzB  
    {{gd}g  
     %o/@0.w  
    然后运行分析的结果如下： \1-lda  
    6Jy%4]wK  
    Analysis of Tolerances Xgh%2 ;:  
    W|{!0w  
    File : E:\光学设计资料\zemax练习\f500.ZMX _[8JSw7  
    Title: )6XnxBSH  
    Date : TUE JUN 21 2011 Tq* <J~-  
    ZwxEcs+UM  
    Units are Millimeters. b"@-9ke5I  
    All changes are computed using linear differences. !M}-N  
    Z  OAg7  
    Paraxial Focus compensation only. rp @%0/[  
    =}%:4  
    WARNING: Solves should be removed prior to tolerancing. !<h9XccN  
    {|%^'lS  
    Mnemonics: zI"&g]TV5  
    TFRN: Tolerance on curvature in fringes. Yrf?|,  
    TTHI: Tolerance on thickness. UCmJQJc  
    TSDX: Tolerance on surface decentering in x. P5dD&  
    TSDY: Tolerance on surface decentering in y. ku57<kb  
    TSTX: Tolerance on surface tilt in x (degrees). =|O]X|y-lZ  
    TSTY: Tolerance on surface tilt in y (degrees). ~K)FuL[*  
    TIRR: Tolerance on irregularity (fringes). 6_8yQ  
    TIND: Tolerance on Nd index of refraction. wBI:}N@.  
    TEDX: Tolerance on element decentering in x. IY~I=}  
    TEDY: Tolerance on element decentering in y. MC-Z6l2  
    TETX: Tolerance on element tilt in x (degrees). 9JMf T]  
    TETY: Tolerance on element tilt in y (degrees). Pvv7|AV   
    `{yD\qDyX  
    WARNING: RAY AIMING IS OFF. Very loose tolerances may not be computed accurately. W#d'SL#5  
    Z @m5hx&  
    WARNING: Boundary constraints on compensators will be ignored. U1yspHiZ  
    D}{]5R  
    Criterion           : Geometric MTF average S&T at 30.0000 cycles per mm O d6'bO;G  
    Mode                : Sensitivities 3 ?gfDJfE  
    Sampling            : 2 .1h\r, #  
    Nominal Criterion   : 0.54403234 =JTwH>fD  
    Test Wavelength     : 0.6328 mWoN\Rwj  
    b*Hk} !qH  
    j$u  
    Fields: XY Symmetric Angle in degrees }f{5-iwD}  
    #      X-Field      Y-Field       Weight    VDX    VDY    VCX    VCY S=L#8CID  
    1   0.000E+000   0.000E+000   1.000E+000  0.000  0.000  0.000  0.000 blG?("0!  
    3<Z@!ft8  
    Sensitivity Analysis: /ml+b8@  
    rCGKE`H  
                     |----------------- Minimum ----------------| |----------------- Maximum ----------------| _M>S=3w  
    Type                      Value      Criterion        Change          Value      Criterion        Change E^w0X,0XlE  
    Fringe tolerance on surface 1 gpbdK?  
    TFRN   1            -1.00000000     0.54257256    -0.00145977     1.00000000     0.54548607     0.00145374 %0u5d$bq  
    Change in Focus                :      -0.000000                            0.000000 E-9>lb  
    Fringe tolerance on surface 2 O#^qd0e'P!  
    TFRN   2            -1.00000000     0.54177471    -0.00225762     1.00000000     0.54627463     0.00224230  KI\ 9)  
    Change in Focus                :       0.000000                            0.000000 'L1yFv  
    Fringe tolerance on surface 3 PJKxh%J  
    TFRN   3            -1.00000000     0.54779866     0.00376632     1.00000000     0.54022572    -0.00380662 0|\JbM  
    Change in Focus                :      -0.000000                            0.000000 sBxCi~  
    Thickness tolerance on surface 1 C3<_0eI  
    TTHI   1   3        -0.20000000     0.54321462    -0.00081772     0.20000000     0.54484759     0.00081525 5}]gL  
    Change in Focus                :       0.000000                            0.000000  W"~"R  
    Thickness tolerance on surface 2 4&L,QSJ V  
    TTHI   2   3        -0.20000000     0.54478712     0.00075478     0.20000000     0.54327558    -0.00075675 tnX W7ej^  
    Change in Focus                :       0.000000                           -0.000000 hR>`I0|p&  
    Decenter X tolerance on surfaces 1 through 3 aO:A pOAO  
    TEDX   1   3        -0.20000000     0.54401464   -1.7700E-005     0.20000000     0.54401464   -1.7700E-005 tQMz1$  
    Change in Focus                :       0.000000                            0.000000 *MWI`=c  
    Decenter Y tolerance on surfaces 1 through 3 #Guwbg  
    TEDY   1   3        -0.20000000     0.54401464   -1.7700E-005     0.20000000     0.54401464   -1.7700E-005 p8CaD4bE  
    Change in Focus                :       0.000000                            0.000000 >^f]Lgp  
    Tilt X tolerance on surfaces 1 through 3 (degrees) #b&=CsW`  
    TETX   1   3        -0.20000000     0.54897548     0.00494314     0.20000000     0.54897548     0.00494314 ^sJp!hi4=)  
    Change in Focus                :       0.000000                            0.000000 Ej@N}r>X  
    Tilt Y tolerance on surfaces 1 through 3 (degrees) 'F1<m^  
    TETY   1   3        -0.20000000     0.54897548     0.00494314     0.20000000     0.54897548     0.00494314 Ac>G F  
    Change in Focus                :       0.000000                            0.000000 P6'0:M@5  
    Decenter X tolerance on surface 1 4%>tk 8 [  
    TSDX   1            -0.20000000     0.53999563    -0.00403671     0.20000000     0.53999563    -0.00403671 >u `Ci>tY  
    Change in Focus                :       0.000000                            0.000000 rG B*a8  
    Decenter Y tolerance on surface 1 Ys5I qj=mp  
    TSDY   1            -0.20000000     0.53999563    -0.00403671     0.20000000     0.53999563    -0.00403671 |z)7XK  
    Change in Focus                :       0.000000                            0.000000 _2})URU< S  
    Tilt X tolerance on surface (degrees) 1 kgX"I ?>d  
    TSTX   1            -0.20000000     0.42678383    -0.11724851     0.20000000     0.42678383    -0.11724851 b Olb  
    Change in Focus                :       0.000000                            0.000000 fb!>@@9Z  
    Tilt Y tolerance on surface (degrees) 1 0w$1Yx~C  
    TSTY   1            -0.20000000     0.42678383    -0.11724851     0.20000000     0.42678383    -0.11724851 w 3L+7V,!  
    Change in Focus                :       0.000000                            0.000000 k~1{|HxrE  
    Decenter X tolerance on surface 2 f*[Uq0?  
    TSDX   2            -0.20000000     0.51705427    -0.02697807     0.20000000     0.51705427    -0.02697807 ehX4[j6  
    Change in Focus                :       0.000000                            0.000000 (>om.FM  
    Decenter Y tolerance on surface 2 f./j%R@  
    TSDY   2            -0.20000000     0.51705427    -0.02697807     0.20000000     0.51705427    -0.02697807 BLo=@C%w5  
    Change in Focus                :       0.000000                            0.000000 jdD`C`w|,  
    Tilt X tolerance on surface (degrees) 2 fqm6Pd{:(  
    TSTX   2            -0.20000000     0.35349910    -0.19053324     0.20000000     0.35349910    -0.19053324 Ys%d  
    Change in Focus                :       0.000000                            0.000000 A^pRHbRq  
    Tilt Y tolerance on surface (degrees) 2 ~HX'8\5  
    TSTY   2            -0.20000000     0.35349910    -0.19053324     0.20000000     0.35349910    -0.19053324 C:}"?tri  
    Change in Focus                :       0.000000                            0.000000 l'\m'Ioh  
    Decenter X tolerance on surface 3 o PA m*  
    TSDX   3            -0.20000000     0.53419039    -0.00984195     0.20000000     0.53419039    -0.00984195 e0o)Jo.P  
    Change in Focus                :       0.000000                            0.000000 A6F/w  
    Decenter Y tolerance on surface 3 a&`Lfw"  
    TSDY   3            -0.20000000     0.53419039    -0.00984195     0.20000000     0.53419039    -0.00984195 =NL(L  
    Change in Focus                :       0.000000                            0.000000 KlRIJOS  
    Tilt X tolerance on surface (degrees) 3 4V5h1/JPm  
    TSTX   3            -0.20000000     0.42861670    -0.11541563     0.20000000     0.42861670    -0.11541563 Kx,<-]4  
    Change in Focus                :       0.000000                            0.000000 ^<e(3S:  
    Tilt Y tolerance on surface (degrees) 3 L8KMMYh[  
    TSTY   3            -0.20000000     0.42861670    -0.11541563     0.20000000     0.42861670    -0.11541563 rge/qUr/^  
    Change in Focus                :       0.000000                            0.000000 ]*AQT7PH  
    Irregularity of surface 1 in fringes i"y @Aj!7  
    TIRR   1            -0.20000000     0.50973587    -0.03429647     0.20000000     0.57333868     0.02930634 eq36mIo  
    Change in Focus                :       0.000000                            0.000000  !*-|s}e  
    Irregularity of surface 2 in fringes LZ~}*}jy  
    TIRR   2            -0.20000000     0.53400904    -0.01002330     0.20000000     0.55360281     0.00957047 ?w"zW6U  
    Change in Focus                :       0.000000                            0.000000 , *Z!Bd8  
    Irregularity of surface 3 in fringes 5q.)K f+  
    TIRR   3            -0.20000000     0.58078982     0.03675748     0.20000000     0.49904394    -0.04498840 .u9,w  
    Change in Focus                :       0.000000                            0.000000 ncij)7c)u  
    Index tolerance on surface 1 )L7h:%h#  
    TIND   1            -0.00100000     0.52606778    -0.01796456     0.00100000     0.56121811     0.01718578 ~@VyJT%  
    Change in Focus                :       0.000000                            0.000000 $)M 5@KT  
    Index tolerance on surface 2 yUFT9bD  
    TIND   2            -0.00100000     0.55639086     0.01235852     0.00100000     0.53126361    -0.01276872 D3;#:  
    Change in Focus                :       0.000000                           -0.000000 kCU (Hi`Q  
    ,tHV H7[  
    Worst offenders: s\ YHT.O?  
    Type                      Value      Criterion        Change iXuSFman  
    TSTY   2            -0.20000000     0.35349910    -0.19053324 vHx[:vuq:  
    TSTY   2             0.20000000     0.35349910    -0.19053324 b(:U]>J  
    TSTX   2            -0.20000000     0.35349910    -0.19053324 kt hy9<!$  
    TSTX   2             0.20000000     0.35349910    -0.19053324 -Y/c]g  
    TSTY   1            -0.20000000     0.42678383    -0.11724851 V3> JZH`  
    TSTY   1             0.20000000     0.42678383    -0.11724851 Wr\A ->+  
    TSTX   1            -0.20000000     0.42678383    -0.11724851 .d%CD`8!  
    TSTX   1             0.20000000     0.42678383    -0.11724851 i~EFRI@  
    TSTY   3            -0.20000000     0.42861670    -0.11541563 2G BE=T  
    TSTY   3             0.20000000     0.42861670    -0.11541563 6n$g73u<=3  
    ~myY-nEY  
    Estimated Performance Changes based upon Root-Sum-Square method: 5'[b:YC  
    Nominal MTF                 :     0.54403234 p6W|4_a?  
    Estimated change            :    -0.36299231 XlU`jv+  
    Estimated MTF               :     0.18104003 45tQ$jr`1  
    pu6@X7W"  
    Compensator Statistics: 6{TUs>~  
    Change in back focus: UB|}+WA3  
    Minimum            :        -0.000000 di]TS9&9  
    Maximum            :         0.000000 L+2<J,   
    Mean               :        -0.000000 y^hCO:`l3  
    Standard Deviation :         0.000000 p;9"0rj,z  
    NN@'79x  
    Monte Carlo Analysis: {:c5/ ,7c;  
    Number of trials: 20 zqa7!ky  
    qO}Q4a+  
    Initial Statistics: Normal Distribution 78/,rp#'_  
    ]?a i  
      Trial       Criterion        Change k^*S3#"  
          1     0.42804416    -0.11598818 f#b;s<G  
    Change in Focus                :      -0.400171 2N[/Cc2Tg/  
          2     0.54384387    -0.00018847 tkKiuh?m  
    Change in Focus                :       1.018470 R&]#@PW^  
          3     0.44510003    -0.09893230 Ipyr+7/zJ  
    Change in Focus                :      -0.601922 j )b[7%  
          4     0.18154684    -0.36248550 @pO2A6 Ks  
    Change in Focus                :       0.920681 7Nt6}${=z  
          5     0.28665820    -0.25737414 LF\HmKM,  
    Change in Focus                :       1.253875 6$A>%Jtwe  
          6     0.21263372    -0.33139862 x /E<@?*:  
    Change in Focus                :      -0.903878 .*Ylj2nM  
          7     0.40051424    -0.14351809 8zzY;3^h;  
    Change in Focus                :      -1.354815 {>n\B~*,"C  
          8     0.48754161    -0.05649072 IcP\#zhEv  
    Change in Focus                :       0.215922 aV`_@F-8  
          9     0.40357468    -0.14045766 bn6WvC 3?  
    Change in Focus                :       0.281783 EN;s 8sC!  
         10     0.26315315    -0.28087919 fm1yZX?`  
    Change in Focus                :      -1.048393 6g&Ev'  
         11     0.26120585    -0.28282649 + Un(VTD  
    Change in Focus                :       1.017611 3  G_0DS  
         12     0.24033815    -0.30369419 aGq1 YOD[$  
    Change in Focus                :      -0.109292 r6gfxW5  
         13     0.37164046    -0.17239188 GY wU3`{  
    Change in Focus                :      -0.692430 ?Es(pwJB  
         14     0.48597489    -0.05805744  {Bw  
    Change in Focus                :      -0.662040 `R6dnbH  
         15     0.21462327    -0.32940907 uJ T^=Y  
    Change in Focus                :       1.611296 X)b@ia'"Wp  
         16     0.43378226    -0.11025008 z1S p'h$  
    Change in Focus                :      -0.640081 x ?24oO  
         17     0.39321881    -0.15081353 )J{ .z   
    Change in Focus                :       0.914906 M)1Y7?r]  
         18     0.20692530    -0.33710703 F_F02:t  
    Change in Focus                :       0.801607 v8f1o$R  
         19     0.51374068    -0.03029165 7-#   
    Change in Focus                :       0.947293 #.j}:  
         20     0.38013374    -0.16389860 h yK&)y?~  
    Change in Focus                :       0.667010 fs\A(]`$  
    1s/548wu  
    Number of traceable Monte Carlo files generated: 20 _9:r4|S  
    ^xm%~   
    Nominal     0.54403234 AX;!-|bW  
    Best        0.54384387    Trial     2 D$Eq~VQ  
    Worst       0.18154684    Trial     4 @|([b r|O  
    Mean        0.35770970 #pcgfVl  
    Std Dev     0.11156454 {;vLM* '  
    YpI|=mv  
    zd|n!3;  
    Compensator Statistics: 0TWd.+  
    Change in back focus: `3yK<-  
    Minimum            :        -1.354815 HT ."J  
    Maximum            :         1.611296 L@s_)?x0  
    Mean               :         0.161872 S`8Iu[Ma  
    Standard Deviation :         0.869664 Kv9Z.DY  
    0p]v#z}  
    90% >       0.20977951               z3I |jy1  
    80% >       0.22748071               %X|u({(zb  
    50% >       0.38667627               !|Wf mU  
    20% >       0.46553746               rld8hFj  
    10% >       0.50064115                [ylRq7^e  
    OE*Y%*b  
    End of Run. IGNU_w4j  
    o$Ju\(Y$<+  
    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 10_#Z~aU  
    -}3nIk<N  
    pO92cGJ8  
    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 sGa}Cf;H@g  
    l];/,J^  
    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                 tva=DS  
    80% >       0.22748071                 bF6J>&]!  
    50% >       0.38667627                 f}J(nz>Sh  
    20% >       0.46553746                 A; wT`c  
    10% >       0.50064115 ]IEZ?+F,  
    Vd(n2JMtG  
    最后这个数值是MTF值呢，还是MTF的公差？ J\P6  
    :AS`1\ C  
    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？？？   em'ADRxG+  
    `XpQR=IOMb  
    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  : . \"k49M`  
    90% >       0.20977951                 R<Lf>p>_  
    80% >       0.22748071                 RI0^#S_{  
    50% >       0.38667627                 /N"3kK,N  
    20% >       0.46553746                 akxNT_   
    10% >       0.50064115 ( %\7dxiK  
    ....... "|L" C+tE  
    A913*O: \  
    n%s%i-[5B  
    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   (Q^sK\  
    Mode                : Sensitivities 2 }r=DAe0  
    Sampling            : 2 jO-?t9^  
    Nominal Criterion   : 0.54403234 h'):/}JPl  
    Test Wavelength     : 0.6328 /x6p  
    6lSz/V;  
    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？ r9i? H  
    I,j4 BU4  
    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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