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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 2z\F m/Z.  
    XbC8t &Q],  
    CA4-&O"  
    .;2!c'mT9  
    然后添加了默认公差分析，基本没变 iV&#5I  
    =;H'~  
    }'W^Ki$  
    Pb,^UFa=  
    然后运行分析的结果如下： DVJc-.x8  
    co3 ,8\N0  
    Analysis of Tolerances c)8wO=!  
    pJz8e&wyLM  
    File : E:\光学设计资料\zemax练习\f500.ZMX mz*z1`\7v\  
    Title: IdxToMr  
    Date : TUE JUN 21 2011 -z$0S%2?  
    p L@zZK0  
    Units are Millimeters. ~@D%qbN  
    All changes are computed using linear differences. O+?zn:  
    ,[\(U!Z7:%  
    Paraxial Focus compensation only. / aG>we  
    1Ol]^ 'y7)  
    WARNING: Solves should be removed prior to tolerancing. s%oAsQ_y  
    \z9?rvT:  
    Mnemonics: (NdgF+'=  
    TFRN: Tolerance on curvature in fringes. >!1f`  
    TTHI: Tolerance on thickness. G)hH?_U#T  
    TSDX: Tolerance on surface decentering in x. +ca296^  
    TSDY: Tolerance on surface decentering in y. :dN35Y]a  
    TSTX: Tolerance on surface tilt in x (degrees). \&5@yh  
    TSTY: Tolerance on surface tilt in y (degrees). Wp}9%Mq~Jy  
    TIRR: Tolerance on irregularity (fringes). U.U.\   
    TIND: Tolerance on Nd index of refraction. &8_;:  
    TEDX: Tolerance on element decentering in x. Jche79B  
    TEDY: Tolerance on element decentering in y. rx>Tc#g  
    TETX: Tolerance on element tilt in x (degrees). C..2y4bA}  
    TETY: Tolerance on element tilt in y (degrees). ]7kGHIJ|  
    $ bNe0  
    WARNING: RAY AIMING IS OFF. Very loose tolerances may not be computed accurately. cWO )QIE  
    1fW4=pF-K  
    WARNING: Boundary constraints on compensators will be ignored. x{>Y$t]  
    q7&yb.<KD.  
    Criterion           : Geometric MTF average S&T at 30.0000 cycles per mm O'-Zn]@.]  
    Mode                : Sensitivities S7ehk*`  
    Sampling            : 2 U;{,lS2l  
    Nominal Criterion   : 0.54403234 eCIRt/ uA  
    Test Wavelength     : 0.6328 kA%OF*%|6  
    B" m:<@ "  
    ~f10ZB_k>'  
    Fields: XY Symmetric Angle in degrees :.o=F`W  
    #      X-Field      Y-Field       Weight    VDX    VDY    VCX    VCY 9c{%m4  
    1   0.000E+000   0.000E+000   1.000E+000  0.000  0.000  0.000  0.000 sNfb %r  
    qTHg[sME  
    Sensitivity Analysis: ZBR^[OXO  
    J(0=~Z[  
                     |----------------- Minimum ----------------| |----------------- Maximum ----------------| pq?[wp"  
    Type                      Value      Criterion        Change          Value      Criterion        Change _8li4;F  
    Fringe tolerance on surface 1 LnTe_Q7_  
    TFRN   1            -1.00000000     0.54257256    -0.00145977     1.00000000     0.54548607     0.00145374 ~hz@9E]O  
    Change in Focus                :      -0.000000                            0.000000 d50IAa^p6J  
    Fringe tolerance on surface 2 2${,%8"0s  
    TFRN   2            -1.00000000     0.54177471    -0.00225762     1.00000000     0.54627463     0.00224230 5V nr"d  
    Change in Focus                :       0.000000                            0.000000 +< \cd9  
    Fringe tolerance on surface 3 .;Utkf'I  
    TFRN   3            -1.00000000     0.54779866     0.00376632     1.00000000     0.54022572    -0.00380662 o\ow{ gh9  
    Change in Focus                :      -0.000000                            0.000000 $qtU  
    Thickness tolerance on surface 1 _RaVnMJKX4  
    TTHI   1   3        -0.20000000     0.54321462    -0.00081772     0.20000000     0.54484759     0.00081525 3cfZ!E~^kc  
    Change in Focus                :       0.000000                            0.000000 ).+xcv   
    Thickness tolerance on surface 2 ss`q{ARb  
    TTHI   2   3        -0.20000000     0.54478712     0.00075478     0.20000000     0.54327558    -0.00075675 9hR:y.  
    Change in Focus                :       0.000000                           -0.000000  TXD^Do5^  
    Decenter X tolerance on surfaces 1 through 3 pm W6~%}*  
    TEDX   1   3        -0.20000000     0.54401464   -1.7700E-005     0.20000000     0.54401464   -1.7700E-005 udEb/7ZL  
    Change in Focus                :       0.000000                            0.000000 Gj7QG IKx  
    Decenter Y tolerance on surfaces 1 through 3 2gL[\/s  
    TEDY   1   3        -0.20000000     0.54401464   -1.7700E-005     0.20000000     0.54401464   -1.7700E-005 *T>#zR{  
    Change in Focus                :       0.000000                            0.000000 t66f 7AR  
    Tilt X tolerance on surfaces 1 through 3 (degrees) I6hhU;)C  
    TETX   1   3        -0.20000000     0.54897548     0.00494314     0.20000000     0.54897548     0.00494314 !v5sWVVR  
    Change in Focus                :       0.000000                            0.000000 eW"x%|/Q7  
    Tilt Y tolerance on surfaces 1 through 3 (degrees) R!/,E  
    TETY   1   3        -0.20000000     0.54897548     0.00494314     0.20000000     0.54897548     0.00494314 &Qq/Xi,bZ  
    Change in Focus                :       0.000000                            0.000000 SEQO2`]e:  
    Decenter X tolerance on surface 1 c ;21i;&,9  
    TSDX   1            -0.20000000     0.53999563    -0.00403671     0.20000000     0.53999563    -0.00403671 *]:G7SW{  
    Change in Focus                :       0.000000                            0.000000 mU?&\w=v$  
    Decenter Y tolerance on surface 1 |P.  =  
    TSDY   1            -0.20000000     0.53999563    -0.00403671     0.20000000     0.53999563    -0.00403671 v;bM.OL  
    Change in Focus                :       0.000000                            0.000000 ;ad9{":J#B  
    Tilt X tolerance on surface (degrees) 1 /md Q(Dm  
    TSTX   1            -0.20000000     0.42678383    -0.11724851     0.20000000     0.42678383    -0.11724851 #>E3'5b   
    Change in Focus                :       0.000000                            0.000000 +2V%'{:  
    Tilt Y tolerance on surface (degrees) 1 1(:b{Bl  
    TSTY   1            -0.20000000     0.42678383    -0.11724851     0.20000000     0.42678383    -0.11724851 dWW-tHv#  
    Change in Focus                :       0.000000                            0.000000 "lU]tIpCu  
    Decenter X tolerance on surface 2 r\l3_t  
    TSDX   2            -0.20000000     0.51705427    -0.02697807     0.20000000     0.51705427    -0.02697807 dEQReD  
    Change in Focus                :       0.000000                            0.000000 ,WO%L~db  
    Decenter Y tolerance on surface 2 f $.\o  
    TSDY   2            -0.20000000     0.51705427    -0.02697807     0.20000000     0.51705427    -0.02697807 0{"dI;b%  
    Change in Focus                :       0.000000                            0.000000 &v3D" J  
    Tilt X tolerance on surface (degrees) 2 (!_X:+0_  
    TSTX   2            -0.20000000     0.35349910    -0.19053324     0.20000000     0.35349910    -0.19053324 ui.QYAYaV  
    Change in Focus                :       0.000000                            0.000000 ]xJ'oBhy  
    Tilt Y tolerance on surface (degrees) 2 h=v[i!U-eY  
    TSTY   2            -0.20000000     0.35349910    -0.19053324     0.20000000     0.35349910    -0.19053324 w>z8c3Dq}  
    Change in Focus                :       0.000000                            0.000000 JO& ;bT<  
    Decenter X tolerance on surface 3 }"&n[/8~  
    TSDX   3            -0.20000000     0.53419039    -0.00984195     0.20000000     0.53419039    -0.00984195 /\,_P  
    Change in Focus                :       0.000000                            0.000000 (5Z8zNH`3  
    Decenter Y tolerance on surface 3 _o&,  
    TSDY   3            -0.20000000     0.53419039    -0.00984195     0.20000000     0.53419039    -0.00984195 taWirq d9  
    Change in Focus                :       0.000000                            0.000000 -~( 0O  
    Tilt X tolerance on surface (degrees) 3 D y`W5_xSz  
    TSTX   3            -0.20000000     0.42861670    -0.11541563     0.20000000     0.42861670    -0.11541563 /^z/]!JG:V  
    Change in Focus                :       0.000000                            0.000000 k lP{yxU'n  
    Tilt Y tolerance on surface (degrees) 3 oN&rq6eN  
    TSTY   3            -0.20000000     0.42861670    -0.11541563     0.20000000     0.42861670    -0.11541563 Y'<uZl^aX  
    Change in Focus                :       0.000000                            0.000000 jlRl2 #"  
    Irregularity of surface 1 in fringes 9&[) (On74  
    TIRR   1            -0.20000000     0.50973587    -0.03429647     0.20000000     0.57333868     0.02930634 |z!q r}i  
    Change in Focus                :       0.000000                            0.000000 &# vk4C_8m  
    Irregularity of surface 2 in fringes 3ZW/$KP/  
    TIRR   2            -0.20000000     0.53400904    -0.01002330     0.20000000     0.55360281     0.00957047 ]689Q%D  
    Change in Focus                :       0.000000                            0.000000 j{Yt70Wv  
    Irregularity of surface 3 in fringes NSMjr_  
    TIRR   3            -0.20000000     0.58078982     0.03675748     0.20000000     0.49904394    -0.04498840 L;.VEz!  
    Change in Focus                :       0.000000                            0.000000 ny!lj a5[  
    Index tolerance on surface 1 Zzw}sZ?8  
    TIND   1            -0.00100000     0.52606778    -0.01796456     0.00100000     0.56121811     0.01718578 4DQ07w  
    Change in Focus                :       0.000000                            0.000000 RQj`9F  
    Index tolerance on surface 2 m{:"1]  
    TIND   2            -0.00100000     0.55639086     0.01235852     0.00100000     0.53126361    -0.01276872 KA|&Q<<{@  
    Change in Focus                :       0.000000                           -0.000000 ~4MtDf  
    (B>yaM#5  
    Worst offenders: $n=W2WJ6f  
    Type                      Value      Criterion        Change ++Rdv0~  
    TSTY   2            -0.20000000     0.35349910    -0.19053324 "xe7Dl  
    TSTY   2             0.20000000     0.35349910    -0.19053324 D_l/Gxdpr  
    TSTX   2            -0.20000000     0.35349910    -0.19053324 i63`B+L{  
    TSTX   2             0.20000000     0.35349910    -0.19053324 ql{^"8x  
    TSTY   1            -0.20000000     0.42678383    -0.11724851 (ZE%tbm2  
    TSTY   1             0.20000000     0.42678383    -0.11724851 ')AByD}Hi]  
    TSTX   1            -0.20000000     0.42678383    -0.11724851 sow bg<D  
    TSTX   1             0.20000000     0.42678383    -0.11724851 E<D+)A  
    TSTY   3            -0.20000000     0.42861670    -0.11541563 -vv   
    TSTY   3             0.20000000     0.42861670    -0.11541563 * ajFZI  
    [ E$$nNs  
    Estimated Performance Changes based upon Root-Sum-Square method: ^Ei*M0fF  
    Nominal MTF                 :     0.54403234 DHh+%|e  
    Estimated change            :    -0.36299231 K?h[.`}  
    Estimated MTF               :     0.18104003 i;[h 9=\/  
    ]yyU)V0Iu  
    Compensator Statistics: #W>x\  
    Change in back focus: &_Cxv8  
    Minimum            :        -0.000000 g6rv`I $l  
    Maximum            :         0.000000 vbr~<JT=  
    Mean               :        -0.000000 Bl kSWW/  
    Standard Deviation :         0.000000 bh=\  
    vqrBRlZ  
    Monte Carlo Analysis: E0sbU<11  
    Number of trials: 20 K%Usjezv&  
    Mq+viU&   
    Initial Statistics: Normal Distribution tpv?`(DDU  
    > [Xm|A#  
      Trial       Criterion        Change P\D[n-&  
          1     0.42804416    -0.11598818 pd=7^"[};  
    Change in Focus                :      -0.400171 ggrI>vaw  
          2     0.54384387    -0.00018847 /-DKV~  
    Change in Focus                :       1.018470 O"@?U  
          3     0.44510003    -0.09893230  .LX?VD  
    Change in Focus                :      -0.601922 B*9  
          4     0.18154684    -0.36248550 aj&\CJ  
    Change in Focus                :       0.920681 )vO_sIbnW  
          5     0.28665820    -0.25737414 rER~P\-  
    Change in Focus                :       1.253875 MB}:GY?  
          6     0.21263372    -0.33139862 X }m7@r@  
    Change in Focus                :      -0.903878 pO\ S#GnX  
          7     0.40051424    -0.14351809 Hm.X}HO0L  
    Change in Focus                :      -1.354815 ot-(4Y  
          8     0.48754161    -0.05649072 8lMZ  
    Change in Focus                :       0.215922 jFgZ}Xp  
          9     0.40357468    -0.14045766 RM)1*l`!E  
    Change in Focus                :       0.281783 * zd.  
         10     0.26315315    -0.28087919 s ;48v  
    Change in Focus                :      -1.048393 k%"$$uo  
         11     0.26120585    -0.28282649 ' " Bex`  
    Change in Focus                :       1.017611 =ft9T&ciD  
         12     0.24033815    -0.30369419 }j& O/ Up  
    Change in Focus                :      -0.109292 'g. :MQ8  
         13     0.37164046    -0.17239188 Bfbl#ZkyL  
    Change in Focus                :      -0.692430 g;$E1U=R-E  
         14     0.48597489    -0.05805744 w+Ad$4Pf"  
    Change in Focus                :      -0.662040 gs$3)t  
         15     0.21462327    -0.32940907 !.9l4@z#  
    Change in Focus                :       1.611296 RI?NB6U  
         16     0.43378226    -0.11025008 J09*v )L  
    Change in Focus                :      -0.640081 l#b:^3  
         17     0.39321881    -0.15081353 ?A|zRj{  
    Change in Focus                :       0.914906 H!p!sn  
         18     0.20692530    -0.33710703 J=b*  
    Change in Focus                :       0.801607 #]"/{Z  
         19     0.51374068    -0.03029165 k"t >He  
    Change in Focus                :       0.947293 ;F|jG}M"  
         20     0.38013374    -0.16389860 B<A:_'g  
    Change in Focus                :       0.667010 N[>:@h  
    ggMUdlU  
    Number of traceable Monte Carlo files generated: 20  }K?F7cD  
    @v"T~6M  
    Nominal     0.54403234 `$H7KIG  
    Best        0.54384387    Trial     2 6KVV z/  
    Worst       0.18154684    Trial     4 b7Yq_%+  
    Mean        0.35770970 ldP3n:7FS  
    Std Dev     0.11156454 "pYe-_"@  
    RTA%hCr!  
    MdLj,1_T  
    Compensator Statistics: tAaYL \~  
    Change in back focus: %j%%Rn  
    Minimum            :        -1.354815 =+`D  
    Maximum            :         1.611296 *<w3" iq  
    Mean               :         0.161872 ~M*7N@D  
    Standard Deviation :         0.869664 Ks|gL#)*Ku  
    'HCnB]1  
    90% >       0.20977951               .a {QA  
    80% >       0.22748071               8:~b &>   
    50% >       0.38667627               anLbl#UV  
    20% >       0.46553746               !TGr.R  
    10% >       0.50064115                L+Eu d  
    4yhcK&  
    End of Run. [@g~  
    r9<V%PH v  
    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 0"4J"q]&  
    '\@WN]  
    hRk,vB ]  
    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 $khrWiX  
    li@k Lh  
    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                 J,9%%S8/C  
    80% >       0.22748071                 (ZS/@He  
    50% >       0.38667627                 ,b4g.CV  
    20% >       0.46553746                 ;KL9oV!<f  
    10% >       0.50064115 !M,h79NM  
    x vdY 8%S  
    最后这个数值是MTF值呢，还是MTF的公差？ D@:"f?K>  
    G8noQ_-  
    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？？？   vn``0!FX  
    JS PW>W"  
    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  : Je@kiE  
    90% >       0.20977951                 {"jd_b&  
    80% >       0.22748071                 9T?64t<Ju  
    50% >       0.38667627                 c|Y!c!9F  
    20% >       0.46553746                 H]]c9`ayt  
    10% >       0.50064115 =hGJAU  
    ....... S/fW/W*/}  
    ED/FlL{  
    v8~YR'T0`V  
    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   8YKQIt K  
    Mode                : Sensitivities ) $#(ZL^m  
    Sampling            : 2 b2s~%}T  
    Nominal Criterion   : 0.54403234 yl/a:Q  
    Test Wavelength     : 0.6328 "{ FoA3g|  
    ${>DhfF  
    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？ (tKMBxQo8  
    M _(2sq  
    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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