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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 lIuXo3  
    Sl.o,W^  
    w3#`1T`N  
    B <+K<,S  
    然后添加了默认公差分析，基本没变 ?Bu}.0ku-$  
    5 R*lVUix  
    w &vhWq  
    O|UxFnB}  
    然后运行分析的结果如下： <F=Dj*]  
    TmiWjQv`  
    Analysis of Tolerances l(Cf7o!  
    Lht[g9  
    File : E:\光学设计资料\zemax练习\f500.ZMX 9bEM#Hj  
    Title: ,QS'$n  
    Date : TUE JUN 21 2011 \Hs|$   
    0 [i+  
    Units are Millimeters. \/,g VT  
    All changes are computed using linear differences. uMDtdC8  
    ~Oh=   
    Paraxial Focus compensation only. l7Lj[d<n  
    ? : md  
    WARNING: Solves should be removed prior to tolerancing. 5w-JPjH  
    m;h<"]<  
    Mnemonics: n4>cERf a  
    TFRN: Tolerance on curvature in fringes. A7(M,4`6  
    TTHI: Tolerance on thickness. XTj73 MWY  
    TSDX: Tolerance on surface decentering in x. jm> U6  
    TSDY: Tolerance on surface decentering in y. (zmNa}-  
    TSTX: Tolerance on surface tilt in x (degrees). .b _?-Fv  
    TSTY: Tolerance on surface tilt in y (degrees). [` 'd#pR  
    TIRR: Tolerance on irregularity (fringes). q5?L1  
    TIND: Tolerance on Nd index of refraction. s$3`X(Pn  
    TEDX: Tolerance on element decentering in x. U"B.:C2  
    TEDY: Tolerance on element decentering in y. lzoeST  
    TETX: Tolerance on element tilt in x (degrees).  ,F}r@  
    TETY: Tolerance on element tilt in y (degrees). =z-5  
    ( H[  
    WARNING: RAY AIMING IS OFF. Very loose tolerances may not be computed accurately. M1(9A>|nF  
    &gWiu9WbS  
    WARNING: Boundary constraints on compensators will be ignored. B<+pg  
    {~nvs4X  
    Criterion           : Geometric MTF average S&T at 30.0000 cycles per mm 1C'P)f28  
    Mode                : Sensitivities q\U4n[Zk  
    Sampling            : 2 F(E<,l2[  
    Nominal Criterion   : 0.54403234 H`?* bG  
    Test Wavelength     : 0.6328 lO_c/o$  
    {Ve D@  
    [Gf{f\O  
    Fields: XY Symmetric Angle in degrees Q!x`M4   
    #      X-Field      Y-Field       Weight    VDX    VDY    VCX    VCY (h|ch#  
    1   0.000E+000   0.000E+000   1.000E+000  0.000  0.000  0.000  0.000 k)i"tpw  
    U,38qKE  
    Sensitivity Analysis: bHJoEYY^  
    = uk`pj  
                     |----------------- Minimum ----------------| |----------------- Maximum ----------------| !Z-9tYO  
    Type                      Value      Criterion        Change          Value      Criterion        Change blmmm(|~|  
    Fringe tolerance on surface 1 rV~T>x  
    TFRN   1            -1.00000000     0.54257256    -0.00145977     1.00000000     0.54548607     0.00145374 jjX%$Hr  
    Change in Focus                :      -0.000000                            0.000000 7y;u} 1  
    Fringe tolerance on surface 2 g#Mv&tU  
    TFRN   2            -1.00000000     0.54177471    -0.00225762     1.00000000     0.54627463     0.00224230 5=m3J !?  
    Change in Focus                :       0.000000                            0.000000 DH/L`$  
    Fringe tolerance on surface 3 }z?xGW/k  
    TFRN   3            -1.00000000     0.54779866     0.00376632     1.00000000     0.54022572    -0.00380662 Kny%QBoiw  
    Change in Focus                :      -0.000000                            0.000000 vi<X3G6Xh  
    Thickness tolerance on surface 1 p6 <}3m$  
    TTHI   1   3        -0.20000000     0.54321462    -0.00081772     0.20000000     0.54484759     0.00081525 OFIMi^@  
    Change in Focus                :       0.000000                            0.000000 d>;2,srUf  
    Thickness tolerance on surface 2 '}T;b}&s  
    TTHI   2   3        -0.20000000     0.54478712     0.00075478     0.20000000     0.54327558    -0.00075675 pY, O_ t$  
    Change in Focus                :       0.000000                           -0.000000 2H3(HZv  
    Decenter X tolerance on surfaces 1 through 3 +!Q!m 3/I  
    TEDX   1   3        -0.20000000     0.54401464   -1.7700E-005     0.20000000     0.54401464   -1.7700E-005 Gxo# !  
    Change in Focus                :       0.000000                            0.000000 &q"'_4  
    Decenter Y tolerance on surfaces 1 through 3 n'ehB%"  
    TEDY   1   3        -0.20000000     0.54401464   -1.7700E-005     0.20000000     0.54401464   -1.7700E-005 [qW<D/@  
    Change in Focus                :       0.000000                            0.000000 2q/nAQ+  
    Tilt X tolerance on surfaces 1 through 3 (degrees) ckAsGF_B~!  
    TETX   1   3        -0.20000000     0.54897548     0.00494314     0.20000000     0.54897548     0.00494314 4uX,uEa  
    Change in Focus                :       0.000000                            0.000000 'HJ/2-=  
    Tilt Y tolerance on surfaces 1 through 3 (degrees) G{/;AK  
    TETY   1   3        -0.20000000     0.54897548     0.00494314     0.20000000     0.54897548     0.00494314 yS+ (<  
    Change in Focus                :       0.000000                            0.000000 %8a=mQl1^  
    Decenter X tolerance on surface 1 W\'Nv/L  
    TSDX   1            -0.20000000     0.53999563    -0.00403671     0.20000000     0.53999563    -0.00403671 70duk:Ri0  
    Change in Focus                :       0.000000                            0.000000 `(!W s\:  
    Decenter Y tolerance on surface 1 >/8ru*Oc  
    TSDY   1            -0.20000000     0.53999563    -0.00403671     0.20000000     0.53999563    -0.00403671 u >81dO]H  
    Change in Focus                :       0.000000                            0.000000 .|U4N/XN%q  
    Tilt X tolerance on surface (degrees) 1 Q6eN+i2 ;  
    TSTX   1            -0.20000000     0.42678383    -0.11724851     0.20000000     0.42678383    -0.11724851 ~Vwk:+):  
    Change in Focus                :       0.000000                            0.000000 NoJUx['6  
    Tilt Y tolerance on surface (degrees) 1 m**0rpA  
    TSTY   1            -0.20000000     0.42678383    -0.11724851     0.20000000     0.42678383    -0.11724851 y-%nJD$  
    Change in Focus                :       0.000000                            0.000000 2rF?Q?$,B  
    Decenter X tolerance on surface 2 Sy4 mZ}:  
    TSDX   2            -0.20000000     0.51705427    -0.02697807     0.20000000     0.51705427    -0.02697807 ^@M [t<  
    Change in Focus                :       0.000000                            0.000000 lfXH7jL2~  
    Decenter Y tolerance on surface 2 p}96uaC1  
    TSDY   2            -0.20000000     0.51705427    -0.02697807     0.20000000     0.51705427    -0.02697807 4 U}zJP(L  
    Change in Focus                :       0.000000                            0.000000 lt{lHat1  
    Tilt X tolerance on surface (degrees) 2 >'eB2  
    TSTX   2            -0.20000000     0.35349910    -0.19053324     0.20000000     0.35349910    -0.19053324 lj4%(rB=  
    Change in Focus                :       0.000000                            0.000000 S^|$23}  
    Tilt Y tolerance on surface (degrees) 2 nt drXg  
    TSTY   2            -0.20000000     0.35349910    -0.19053324     0.20000000     0.35349910    -0.19053324 /3OC7!~;fM  
    Change in Focus                :       0.000000                            0.000000 yI3Q|731)  
    Decenter X tolerance on surface 3 5?Uo&e  
    TSDX   3            -0.20000000     0.53419039    -0.00984195     0.20000000     0.53419039    -0.00984195 7U&5^s )J  
    Change in Focus                :       0.000000                            0.000000 &$<(D0  
    Decenter Y tolerance on surface 3 IO^:FnJJv  
    TSDY   3            -0.20000000     0.53419039    -0.00984195     0.20000000     0.53419039    -0.00984195 &t~zD4u B  
    Change in Focus                :       0.000000                            0.000000 6#-6Bh)>4  
    Tilt X tolerance on surface (degrees) 3 +.S#=  
    TSTX   3            -0.20000000     0.42861670    -0.11541563     0.20000000     0.42861670    -0.11541563 Q^*G`&w,  
    Change in Focus                :       0.000000                            0.000000 )Y=w40Yzd  
    Tilt Y tolerance on surface (degrees) 3 UaH26fWs  
    TSTY   3            -0.20000000     0.42861670    -0.11541563     0.20000000     0.42861670    -0.11541563 di"C]" ;  
    Change in Focus                :       0.000000                            0.000000 P{"  WlJ  
    Irregularity of surface 1 in fringes j#7wyi5q  
    TIRR   1            -0.20000000     0.50973587    -0.03429647     0.20000000     0.57333868     0.02930634 m$7x#8gF  
    Change in Focus                :       0.000000                            0.000000 kuWK/6l4  
    Irregularity of surface 2 in fringes c:3@[nF~  
    TIRR   2            -0.20000000     0.53400904    -0.01002330     0.20000000     0.55360281     0.00957047 wy,Jw3  
    Change in Focus                :       0.000000                            0.000000 f<g>dQlE  
    Irregularity of surface 3 in fringes l.XknF  
    TIRR   3            -0.20000000     0.58078982     0.03675748     0.20000000     0.49904394    -0.04498840 \R6;Fef  
    Change in Focus                :       0.000000                            0.000000 _Wm(/ +G_|  
    Index tolerance on surface 1 p.@0=)  
    TIND   1            -0.00100000     0.52606778    -0.01796456     0.00100000     0.56121811     0.01718578 "Q3PC!7X:5  
    Change in Focus                :       0.000000                            0.000000 x1.3W j  
    Index tolerance on surface 2 #S@UTJa  
    TIND   2            -0.00100000     0.55639086     0.01235852     0.00100000     0.53126361    -0.01276872 -Pqi1pj]  
    Change in Focus                :       0.000000                           -0.000000 Z[a O_6L  
    ;[;)P tFz\  
    Worst offenders: ,AdusM  
    Type                      Value      Criterion        Change di8W2cwz  
    TSTY   2            -0.20000000     0.35349910    -0.19053324 ]]\)=F`n77  
    TSTY   2             0.20000000     0.35349910    -0.19053324 f %bc64N(  
    TSTX   2            -0.20000000     0.35349910    -0.19053324 8W19#?7>B  
    TSTX   2             0.20000000     0.35349910    -0.19053324 !T<z'zZU  
    TSTY   1            -0.20000000     0.42678383    -0.11724851 x?%rx}h  
    TSTY   1             0.20000000     0.42678383    -0.11724851 \?bwm&6+r  
    TSTX   1            -0.20000000     0.42678383    -0.11724851 ?l6>6a7  
    TSTX   1             0.20000000     0.42678383    -0.11724851 g,00'z_D  
    TSTY   3            -0.20000000     0.42861670    -0.11541563 }s`jl` `PM  
    TSTY   3             0.20000000     0.42861670    -0.11541563 C_;HaQiu  
    &Pmc"9Rl  
    Estimated Performance Changes based upon Root-Sum-Square method: di-O*ug  
    Nominal MTF                 :     0.54403234 b}ySZlmy  
    Estimated change            :    -0.36299231 hknwis%y  
    Estimated MTF               :     0.18104003 ArNur~  
    l@,);w=_P  
    Compensator Statistics: Z-N-9E  
    Change in back focus: ?D RFsA  
    Minimum            :        -0.000000 F3k C"H  
    Maximum            :         0.000000 *4(/t$)pEl  
    Mean               :        -0.000000 ^/_\etV  
    Standard Deviation :         0.000000 r!{w93rPX  
    y+K7WUwhq  
    Monte Carlo Analysis: #2_o[/&}x@  
    Number of trials: 20 %00k1 *$  
    OSSd;ueur$  
    Initial Statistics: Normal Distribution -D!#W%y8  
    cJU!zG  
      Trial       Criterion        Change B6tcKh9d,  
          1     0.42804416    -0.11598818 E[)7tr  
    Change in Focus                :      -0.400171 qT4I Y$h  
          2     0.54384387    -0.00018847 8gVxiFjo  
    Change in Focus                :       1.018470 J{nyo1A  
          3     0.44510003    -0.09893230 s=H/b$v  
    Change in Focus                :      -0.601922 , aRJ!AZ  
          4     0.18154684    -0.36248550 }XfS#Xr1aV  
    Change in Focus                :       0.920681 p?dGZ2` [I  
          5     0.28665820    -0.25737414 8\qCj.>S  
    Change in Focus                :       1.253875 ka?IX9t\  
          6     0.21263372    -0.33139862 w\"n!^ms  
    Change in Focus                :      -0.903878 % j[O&[s}  
          7     0.40051424    -0.14351809 -4*'WzWr  
    Change in Focus                :      -1.354815 ,cGwtt(  
          8     0.48754161    -0.05649072 xZ9}8*Q&:  
    Change in Focus                :       0.215922 %\(y8QV  
          9     0.40357468    -0.14045766 $I}Hk^X  
    Change in Focus                :       0.281783 9#Aipu\  
         10     0.26315315    -0.28087919 ,<uiitOo  
    Change in Focus                :      -1.048393 {V]Qwz)1  
         11     0.26120585    -0.28282649 %{N$1ht^  
    Change in Focus                :       1.017611 @e.OU(Bf  
         12     0.24033815    -0.30369419 nZ`2Z7!  
    Change in Focus                :      -0.109292 L}e"nzTE6I  
         13     0.37164046    -0.17239188 2fj0 I  
    Change in Focus                :      -0.692430 }5o~R~H  
         14     0.48597489    -0.05805744 j=xtnIq  
    Change in Focus                :      -0.662040 lRF_ k  
         15     0.21462327    -0.32940907 -!C Y,'3  
    Change in Focus                :       1.611296 GvZac  
         16     0.43378226    -0.11025008 #lBpln9  
    Change in Focus                :      -0.640081 :f?,]|]+-  
         17     0.39321881    -0.15081353 W%cj39$  
    Change in Focus                :       0.914906 .T#y N\S1  
         18     0.20692530    -0.33710703 g:.,}L  
    Change in Focus                :       0.801607 %vf2||a$BS  
         19     0.51374068    -0.03029165 h30QCk  
    Change in Focus                :       0.947293 O?j98H Sya  
         20     0.38013374    -0.16389860 .gM>FUH3L  
    Change in Focus                :       0.667010 jM3Y|}+  
    .q_uJ_qu-  
    Number of traceable Monte Carlo files generated: 20 r?5@Etpg  
    dVsAX(  
    Nominal     0.54403234 9Th32}H  
    Best        0.54384387    Trial     2 }Ll3AR7\  
    Worst       0.18154684    Trial     4 Z!*8JaMT  
    Mean        0.35770970 4PO%qO  
    Std Dev     0.11156454 e~t}z_>F  
    }QWTPRn  
    L!8 -:)0b  
    Compensator Statistics: qSpa4W[  
    Change in back focus: LRCS)UBY(.  
    Minimum            :        -1.354815 uJ IRk$  
    Maximum            :         1.611296 zCGmn& *M  
    Mean               :         0.161872 =XacG}_  
    Standard Deviation :         0.869664 Mk'n~.mb  
     0'V-  
    90% >       0.20977951               siss_1J  
    80% >       0.22748071               '&pf  
    50% >       0.38667627               ,rH)}C<Q+  
    20% >       0.46553746               +/@ZnE9s  
    10% >       0.50064115                /8$1[[[  
    r_g\_y7ua  
    End of Run. JR a*;_  
    8JtI&aH-L  
    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 k@t,[  
    9s\i(/RxW  
    p+`*~6Jj/  
    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 px [1#*  
    (1elF)  
    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                 Y3MR:{}  
    80% >       0.22748071                 %\{?(baOA  
    50% >       0.38667627                 .f92^lu9  
    20% >       0.46553746                 R 6yvpH  
    10% >       0.50064115 [>J~M!yu:r  
    bhm~Ii  
    最后这个数值是MTF值呢，还是MTF的公差？ ANpY qV  
    3Ibt'$dK  
    也就是说，这到底是有90%的产品MTF大于0.20977951还是90%的产品的MTF变化量大于0.20977951？？？   xwH|ryfs,Z  
    B> " r-O  
    怎么没人啊，大家讨论讨论吗
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    只看该作者 3楼 发表于: 2011-06-23
    没有人啊？？？
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    只看该作者 4楼 发表于: 2011-06-23
    引用第2楼sansummer于2011-06-22 08:56发表的  : 8YLZ)k'  
    90% >       0.20977951                 w@$o  
    80% >       0.22748071                 NG W{Z~l  
    50% >       0.38667627                 $No>-^ )  
    20% >       0.46553746                 *2C79hi1  
    10% >       0.50064115 GGQ(|?w  
    ....... ^]!1'xg  
    K2o0L5Lke  
    @P5@ &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   ;Owu:}   
    Mode                : Sensitivities >rS<!e%  
    Sampling            : 2 Y~SlipY_  
    Nominal Criterion   : 0.54403234 ${6'  
    Test Wavelength     : 0.6328 yy.:0:ema  
    +rpd0s49  
    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？ 5Zm_^IS  
    ~@?-|xLqQ  
    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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