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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 $:gSc &mx  
    v"('_!  
    `E0.PV  
    #2vG_B<M)  
    然后添加了默认公差分析，基本没变 GwpBDM k  
    HxqV[|}0u  
    K"6+X|yxE  
    h,6S$,UI  
    然后运行分析的结果如下： u*-<5& X  
    Jgv>$u  
    Analysis of Tolerances ~S=fMv^BR  
    `J ,~hK  
    File : E:\光学设计资料\zemax练习\f500.ZMX |XdrO  
    Title: & Dl'*|  
    Date : TUE JUN 21 2011 cLko  
    ^xNe Eb  
    Units are Millimeters. {6y.%ysU  
    All changes are computed using linear differences. yJ`1},^  
    RdVis|7o  
    Paraxial Focus compensation only. dj&m  
    ^`r|3c0  
    WARNING: Solves should be removed prior to tolerancing. 6p]R)K>wS  
    }}bi#G:R+  
    Mnemonics: u-M$45vct  
    TFRN: Tolerance on curvature in fringes. qH$rvD!]  
    TTHI: Tolerance on thickness. -0IFPL8  
    TSDX: Tolerance on surface decentering in x. A8Z?[,Mq!  
    TSDY: Tolerance on surface decentering in y. E?h2e~ ,]  
    TSTX: Tolerance on surface tilt in x (degrees). ,, #rv-*  
    TSTY: Tolerance on surface tilt in y (degrees). lGHu@(n<  
    TIRR: Tolerance on irregularity (fringes). *9{Wn7pck/  
    TIND: Tolerance on Nd index of refraction. Ft8h=  
    TEDX: Tolerance on element decentering in x. [ma#8p)  
    TEDY: Tolerance on element decentering in y. +ET  
    TETX: Tolerance on element tilt in x (degrees). Y*`A$  
    TETY: Tolerance on element tilt in y (degrees). 1z@# 8_@  
    rbZ6V :  
    WARNING: RAY AIMING IS OFF. Very loose tolerances may not be computed accurately. Q;,3W+(  
    P<JkRX  
    WARNING: Boundary constraints on compensators will be ignored. u.4vp]eU  
    KY34 'Di  
    Criterion           : Geometric MTF average S&T at 30.0000 cycles per mm nC{rs+P  
    Mode                : Sensitivities ~+iJpW  
    Sampling            : 2 =2)$|KC  
    Nominal Criterion   : 0.54403234 l3#dfW{  
    Test Wavelength     : 0.6328 tBI+uu aa2  
    YM* 6W?  
    ;)pV[3[  
    Fields: XY Symmetric Angle in degrees }' 0Xz9/ l  
    #      X-Field      Y-Field       Weight    VDX    VDY    VCX    VCY ~Q 9)Q  
    1   0.000E+000   0.000E+000   1.000E+000  0.000  0.000  0.000  0.000 XoiYtx53  
    $AhX@|?z  
    Sensitivity Analysis: 7^TXlW n^G  
    3[i !2iL.  
                     |----------------- Minimum ----------------| |----------------- Maximum ----------------| A;`U{7IST  
    Type                      Value      Criterion        Change          Value      Criterion        Change WHLKf  
    Fringe tolerance on surface 1 Y[]+C8"O  
    TFRN   1            -1.00000000     0.54257256    -0.00145977     1.00000000     0.54548607     0.00145374 .%b_3s".  
    Change in Focus                :      -0.000000                            0.000000 x,G6`|Hl  
    Fringe tolerance on surface 2 i[^lJ)[>N  
    TFRN   2            -1.00000000     0.54177471    -0.00225762     1.00000000     0.54627463     0.00224230 U5$DJ5>8  
    Change in Focus                :       0.000000                            0.000000 0HuRFl  
    Fringe tolerance on surface 3 RGuHXf  
    TFRN   3            -1.00000000     0.54779866     0.00376632     1.00000000     0.54022572    -0.00380662 [ .uaO  
    Change in Focus                :      -0.000000                            0.000000 >MY.Fr#.m  
    Thickness tolerance on surface 1 WB [G!'  
    TTHI   1   3        -0.20000000     0.54321462    -0.00081772     0.20000000     0.54484759     0.00081525 LtWU"42  
    Change in Focus                :       0.000000                            0.000000 &b")`p&K  
    Thickness tolerance on surface 2 LP6FSo~K  
    TTHI   2   3        -0.20000000     0.54478712     0.00075478     0.20000000     0.54327558    -0.00075675 Z?aR9OTP  
    Change in Focus                :       0.000000                           -0.000000 ;/3/R/^g  
    Decenter X tolerance on surfaces 1 through 3 +ENW=N  
    TEDX   1   3        -0.20000000     0.54401464   -1.7700E-005     0.20000000     0.54401464   -1.7700E-005 =\7p0cq&*  
    Change in Focus                :       0.000000                            0.000000 CWsv#XOg]  
    Decenter Y tolerance on surfaces 1 through 3 g*.(! !  
    TEDY   1   3        -0.20000000     0.54401464   -1.7700E-005     0.20000000     0.54401464   -1.7700E-005 _rVX_   
    Change in Focus                :       0.000000                            0.000000 _`[6jhNa!  
    Tilt X tolerance on surfaces 1 through 3 (degrees) q &6=oss!  
    TETX   1   3        -0.20000000     0.54897548     0.00494314     0.20000000     0.54897548     0.00494314 GZVl384@  
    Change in Focus                :       0.000000                            0.000000 ZDJWd=E  
    Tilt Y tolerance on surfaces 1 through 3 (degrees) Cwf$`?|W  
    TETY   1   3        -0.20000000     0.54897548     0.00494314     0.20000000     0.54897548     0.00494314 W&f Py%g  
    Change in Focus                :       0.000000                            0.000000 I/V#[KC  
    Decenter X tolerance on surface 1 gO!h<1!  
    TSDX   1            -0.20000000     0.53999563    -0.00403671     0.20000000     0.53999563    -0.00403671 na:^7:I  
    Change in Focus                :       0.000000                            0.000000 cB=u;$k@*  
    Decenter Y tolerance on surface 1 .(]1PKW  
    TSDY   1            -0.20000000     0.53999563    -0.00403671     0.20000000     0.53999563    -0.00403671 H{zuIN/.1  
    Change in Focus                :       0.000000                            0.000000 'c{]#E1}  
    Tilt X tolerance on surface (degrees) 1 ;rAW3  
    TSTX   1            -0.20000000     0.42678383    -0.11724851     0.20000000     0.42678383    -0.11724851 Y[?Wt/O;  
    Change in Focus                :       0.000000                            0.000000 Cbvl( (  
    Tilt Y tolerance on surface (degrees) 1 -"K:ve(K  
    TSTY   1            -0.20000000     0.42678383    -0.11724851     0.20000000     0.42678383    -0.11724851 IqKXFORiNI  
    Change in Focus                :       0.000000                            0.000000 [IA==B7  
    Decenter X tolerance on surface 2 uCS  
    TSDX   2            -0.20000000     0.51705427    -0.02697807     0.20000000     0.51705427    -0.02697807 F+S#m3X  
    Change in Focus                :       0.000000                            0.000000 gF5EtdN?|  
    Decenter Y tolerance on surface 2 )'|W[Sh?  
    TSDY   2            -0.20000000     0.51705427    -0.02697807     0.20000000     0.51705427    -0.02697807 bXLa~r4\  
    Change in Focus                :       0.000000                            0.000000 1)Bi>X  
    Tilt X tolerance on surface (degrees) 2   NX_S  
    TSTX   2            -0.20000000     0.35349910    -0.19053324     0.20000000     0.35349910    -0.19053324 +%9Y7qol  
    Change in Focus                :       0.000000                            0.000000 <r3n?w8  
    Tilt Y tolerance on surface (degrees) 2 4!%LD(jB`B  
    TSTY   2            -0.20000000     0.35349910    -0.19053324     0.20000000     0.35349910    -0.19053324 =PM#eu  
    Change in Focus                :       0.000000                            0.000000 ]3jH^7[?  
    Decenter X tolerance on surface 3 wh+ibH}@!  
    TSDX   3            -0.20000000     0.53419039    -0.00984195     0.20000000     0.53419039    -0.00984195 IOqyqt'  
    Change in Focus                :       0.000000                            0.000000 Lf M(DK  
    Decenter Y tolerance on surface 3 bl-s0Ax-  
    TSDY   3            -0.20000000     0.53419039    -0.00984195     0.20000000     0.53419039    -0.00984195 ZM`_P!G  
    Change in Focus                :       0.000000                            0.000000 &\[J  
    Tilt X tolerance on surface (degrees) 3 P"@^'yR5WK  
    TSTX   3            -0.20000000     0.42861670    -0.11541563     0.20000000     0.42861670    -0.11541563 O G}&%NgH  
    Change in Focus                :       0.000000                            0.000000 bA,D]  
    Tilt Y tolerance on surface (degrees) 3 \>7-<7+I6  
    TSTY   3            -0.20000000     0.42861670    -0.11541563     0.20000000     0.42861670    -0.11541563 N6%q%7F.:  
    Change in Focus                :       0.000000                            0.000000 ITUl -L4xE  
    Irregularity of surface 1 in fringes :''0z  
    TIRR   1            -0.20000000     0.50973587    -0.03429647     0.20000000     0.57333868     0.02930634 /*HSAjv  
    Change in Focus                :       0.000000                            0.000000 !,uw./8@Ku  
    Irregularity of surface 2 in fringes 0N_Da N  
    TIRR   2            -0.20000000     0.53400904    -0.01002330     0.20000000     0.55360281     0.00957047 p:%E>K1<  
    Change in Focus                :       0.000000                            0.000000 wuQkeWxJ  
    Irregularity of surface 3 in fringes sH: &OaA  
    TIRR   3            -0.20000000     0.58078982     0.03675748     0.20000000     0.49904394    -0.04498840 ka%pS  
    Change in Focus                :       0.000000                            0.000000 "ZW*O{  
    Index tolerance on surface 1 n(VMGCZPV  
    TIND   1            -0.00100000     0.52606778    -0.01796456     0.00100000     0.56121811     0.01718578 KrH ;o)|  
    Change in Focus                :       0.000000                            0.000000 bYH_U4b  
    Index tolerance on surface 2 K\Q 1/})  
    TIND   2            -0.00100000     0.55639086     0.01235852     0.00100000     0.53126361    -0.01276872 \vQ (  
    Change in Focus                :       0.000000                           -0.000000 x#j_}L!V;  
    ')RK(I  
    Worst offenders: 3i~{x[Jc  
    Type                      Value      Criterion        Change I =pdjD  
    TSTY   2            -0.20000000     0.35349910    -0.19053324 m:CpDxzbf  
    TSTY   2             0.20000000     0.35349910    -0.19053324 wX;NU4)n  
    TSTX   2            -0.20000000     0.35349910    -0.19053324 0X w?}  
    TSTX   2             0.20000000     0.35349910    -0.19053324 A79SAheX#  
    TSTY   1            -0.20000000     0.42678383    -0.11724851 2eYkWHi  
    TSTY   1             0.20000000     0.42678383    -0.11724851 ]F! h~>  
    TSTX   1            -0.20000000     0.42678383    -0.11724851 ?GZs5CnS  
    TSTX   1             0.20000000     0.42678383    -0.11724851 $hh=-#J8  
    TSTY   3            -0.20000000     0.42861670    -0.11541563 2&#iHv  
    TSTY   3             0.20000000     0.42861670    -0.11541563 g'E^@1{  
    2Y{9Df  
    Estimated Performance Changes based upon Root-Sum-Square method: ~<LI p%5(  
    Nominal MTF                 :     0.54403234 c2"OpI  
    Estimated change            :    -0.36299231 OYy8u{@U:  
    Estimated MTF               :     0.18104003 rt z(Jt{<  
    m^KkS   
    Compensator Statistics: H;`@SJBf  
    Change in back focus: ]d FWIvC  
    Minimum            :        -0.000000 eO#)QoHj^  
    Maximum            :         0.000000  >TgO|mq  
    Mean               :        -0.000000 UqbE  
    Standard Deviation :         0.000000 4esf&-gG  
    `h#JDcT;a  
    Monte Carlo Analysis: ><HXd+- sd  
    Number of trials: 20 %l,EA#89 s  
    ~8K~@e$./  
    Initial Statistics: Normal Distribution ~Tolz H!  
    T^W8_rm *3  
      Trial       Criterion        Change Emo]I[<&q  
          1     0.42804416    -0.11598818 5Jp>2d  
    Change in Focus                :      -0.400171 HAXx`r<  
          2     0.54384387    -0.00018847 Sob+l'U$  
    Change in Focus                :       1.018470 >n/QKFvV5  
          3     0.44510003    -0.09893230 Lm/^ 8V+  
    Change in Focus                :      -0.601922 Ff30%  
          4     0.18154684    -0.36248550 zi'?FM[f)  
    Change in Focus                :       0.920681 0vEa]ljS  
          5     0.28665820    -0.25737414 j*nCIxF  
    Change in Focus                :       1.253875 }Na*jr0y9{  
          6     0.21263372    -0.33139862 3:RZ@~u=  
    Change in Focus                :      -0.903878 E#OKeMK  
          7     0.40051424    -0.14351809 5k@ k  
    Change in Focus                :      -1.354815 z^]nP 87  
          8     0.48754161    -0.05649072 ^`$KN0PY  
    Change in Focus                :       0.215922 a<Ta*:R$0  
          9     0.40357468    -0.14045766 fO+;%B  
    Change in Focus                :       0.281783 <e"2<qVi  
         10     0.26315315    -0.28087919 V.}U p+WL  
    Change in Focus                :      -1.048393 _]NM@'e  
         11     0.26120585    -0.28282649 x<].mx  
    Change in Focus                :       1.017611 4YJs4CB  
         12     0.24033815    -0.30369419 ^?,/_3  
    Change in Focus                :      -0.109292 -95 `.o  
         13     0.37164046    -0.17239188 /D~:Ufw  
    Change in Focus                :      -0.692430 f;*\y!|lg~  
         14     0.48597489    -0.05805744 w t}a`hxu  
    Change in Focus                :      -0.662040 wTLHg2'y^  
         15     0.21462327    -0.32940907 _h#G-  
    Change in Focus                :       1.611296 -$*YN{D+  
         16     0.43378226    -0.11025008 v^pE= f*/  
    Change in Focus                :      -0.640081 na~ r}7 7o  
         17     0.39321881    -0.15081353 `8Gwf;P1  
    Change in Focus                :       0.914906 _-^@Jx[  
         18     0.20692530    -0.33710703 8Og9P1jVh  
    Change in Focus                :       0.801607 \J6T:jeS,  
         19     0.51374068    -0.03029165 |tmD`ndO  
    Change in Focus                :       0.947293 J{91 t |  
         20     0.38013374    -0.16389860 b]Jh0B~Y  
    Change in Focus                :       0.667010 nt4>9;  
    ){/y-ixH  
    Number of traceable Monte Carlo files generated: 20 {3?g8e]zr  
    IV\@GM:ait  
    Nominal     0.54403234 5s0H4?S  
    Best        0.54384387    Trial     2 ?/O+5rjA  
    Worst       0.18154684    Trial     4 e3[N#ryt  
    Mean        0.35770970 jjs-[g'}  
    Std Dev     0.11156454 mZORV3bN  
    \Ew2@dF{O  
     ,}bC  
    Compensator Statistics: dJ$}]   
    Change in back focus: ^0VI J)y  
    Minimum            :        -1.354815 Ts^IA67&<  
    Maximum            :         1.611296 O32:j   
    Mean               :         0.161872  oo2VT  
    Standard Deviation :         0.869664 ";Lpf]<  
    -.xs=NwB.|  
    90% >       0.20977951               +* &!u=%G  
    80% >       0.22748071               3ZC[H'|  
    50% >       0.38667627               J,k{Bm  
    20% >       0.46553746               FG'1;x!  
    10% >       0.50064115                yNO5h]o  
    Yx,  
    End of Run. e-Eoe_k  
    o zv><e#  
    这就有了些疑问，为什么我选择的补偿器是近轴焦点，而分析结果近轴焦点都不变化？？应该是变得。另外最后的蒙特卡洛分析，只有10%的大于0.5（我用的是MTF作为评价方式），可是我设计的MTF如图 D:f0W v  
    #T+%$q [:  
    hD;[}8qN{  
    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 m]V5}-?al  
    2;A].5>l  
    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                 _a^%V9t  
    80% >       0.22748071                 2BEF8o]Np  
    50% >       0.38667627                 4$@)yZ  
    20% >       0.46553746                 pGh2 4E  
    10% >       0.50064115 /`3< @{D  
    J)6f"{} &  
    最后这个数值是MTF值呢，还是MTF的公差？ nUD)G<v  
    ggfL d r  
    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？？？   B<x)^[<v  
    sd xl@  
    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  : ?aR)dQ  
    90% >       0.20977951                 Q&S\?cKe  
    80% >       0.22748071                 x>THyY[sq  
    50% >       0.38667627                 x<W`2Du  
    20% >       0.46553746                 R/&Bze  
    10% >       0.50064115 n@r'b{2;l  
    ....... _1S^A0ft  
    #Y6'Q8g f  
     K6d9[;F  
    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   N'[bA  
    Mode                : Sensitivities oju)8H1o#  
    Sampling            : 2 /<,LM8n  
    Nominal Criterion   : 0.54403234 uH 1%diL^  
    Test Wavelength     : 0.6328 #Ux*":  
    !.9pV.~  
    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？ t:y} 7un  
    r;m_@*]  
    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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