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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 @uleyB  
    L_O$>c  
    cSD{$B:  
    I+?hG6NM  
    然后添加了默认公差分析，基本没变 _]>JB0IY  
    ^JeMuU  
    f4t.f*#  
    ! >.vh]8g  
    然后运行分析的结果如下： M].8HwC+  
    9(1rh9`=  
    Analysis of Tolerances 9M$/=>^ Z  
    +c,[ Q  
    File : E:\光学设计资料\zemax练习\f500.ZMX lJ  
    Title: *YV S|6bs  
    Date : TUE JUN 21 2011 D0bnN1VP  
    6 vs3O  
    Units are Millimeters. v|t{1[C  
    All changes are computed using linear differences. 2ypIq  
    L ubrn"128  
    Paraxial Focus compensation only. o+?@5zw -&  
    mf$j03tu  
    WARNING: Solves should be removed prior to tolerancing. je%M AgW`  
    u=K2Q4  
    Mnemonics: `iixq9xi  
    TFRN: Tolerance on curvature in fringes. VV3}]GjC  
    TTHI: Tolerance on thickness. '5.\#=S1  
    TSDX: Tolerance on surface decentering in x. E,"&-`/2v  
    TSDY: Tolerance on surface decentering in y. D_D,t8_Y  
    TSTX: Tolerance on surface tilt in x (degrees). aq>?vti1D  
    TSTY: Tolerance on surface tilt in y (degrees). :h5J r8  
    TIRR: Tolerance on irregularity (fringes). GrI&?=S^  
    TIND: Tolerance on Nd index of refraction. ] f 7#N  
    TEDX: Tolerance on element decentering in x. 8e:vWgQpL  
    TEDY: Tolerance on element decentering in y. 5~VosUp e7  
    TETX: Tolerance on element tilt in x (degrees). z/|BH^Vw  
    TETY: Tolerance on element tilt in y (degrees). nfE@R."A  
    SG]K   
    WARNING: RAY AIMING IS OFF. Very loose tolerances may not be computed accurately. D'i6",Z>  
    'p}`i/  
    WARNING: Boundary constraints on compensators will be ignored. 05e>\}{0  
    vgG}d8MW37  
    Criterion           : Geometric MTF average S&T at 30.0000 cycles per mm =Viy^ieN$  
    Mode                : Sensitivities LJuW${Y  
    Sampling            : 2 K&`Awv  
    Nominal Criterion   : 0.54403234 00<{:  
    Test Wavelength     : 0.6328 8I#D`yVKc  
    S7sb7c'4 k  
    .]t5q%}j  
    Fields: XY Symmetric Angle in degrees Ie_I7YJ  
    #      X-Field      Y-Field       Weight    VDX    VDY    VCX    VCY @6MAX"  
    1   0.000E+000   0.000E+000   1.000E+000  0.000  0.000  0.000  0.000 3)E(RyQA3  
    F @SG((`  
    Sensitivity Analysis: vOT*iax0  
    JeQ[qQ  
                     |----------------- Minimum ----------------| |----------------- Maximum ----------------| 8 njuDl  
    Type                      Value      Criterion        Change          Value      Criterion        Change 4M`Xrfwm'[  
    Fringe tolerance on surface 1 ~<O,Vs_C/  
    TFRN   1            -1.00000000     0.54257256    -0.00145977     1.00000000     0.54548607     0.00145374 h7W}OF_=y  
    Change in Focus                :      -0.000000                            0.000000 &=w|vB)(p  
    Fringe tolerance on surface 2 VTw/_Hf2p  
    TFRN   2            -1.00000000     0.54177471    -0.00225762     1.00000000     0.54627463     0.00224230 \r -N(;m  
    Change in Focus                :       0.000000                            0.000000 7'j9rmTXs  
    Fringe tolerance on surface 3 Ye |G44z  
    TFRN   3            -1.00000000     0.54779866     0.00376632     1.00000000     0.54022572    -0.00380662 &YX6"S_B  
    Change in Focus                :      -0.000000                            0.000000 RaNeZhF>M  
    Thickness tolerance on surface 1 .h8M  
    TTHI   1   3        -0.20000000     0.54321462    -0.00081772     0.20000000     0.54484759     0.00081525  Alu5$6X  
    Change in Focus                :       0.000000                            0.000000 uQp_':\k  
    Thickness tolerance on surface 2 ?!S GiARW?  
    TTHI   2   3        -0.20000000     0.54478712     0.00075478     0.20000000     0.54327558    -0.00075675 Rc9<^g`  
    Change in Focus                :       0.000000                           -0.000000 AzjMv6N   
    Decenter X tolerance on surfaces 1 through 3 SMO*({/  
    TEDX   1   3        -0.20000000     0.54401464   -1.7700E-005     0.20000000     0.54401464   -1.7700E-005 myvh@@N  
    Change in Focus                :       0.000000                            0.000000 j%xBo:  
    Decenter Y tolerance on surfaces 1 through 3 9k `~x1Y)  
    TEDY   1   3        -0.20000000     0.54401464   -1.7700E-005     0.20000000     0.54401464   -1.7700E-005 ^ KOzCLC  
    Change in Focus                :       0.000000                            0.000000 *{[d%B<lp  
    Tilt X tolerance on surfaces 1 through 3 (degrees) Lk nVqZ|k  
    TETX   1   3        -0.20000000     0.54897548     0.00494314     0.20000000     0.54897548     0.00494314 uPU#c\  
    Change in Focus                :       0.000000                            0.000000 In(NF#  
    Tilt Y tolerance on surfaces 1 through 3 (degrees) Z<]VTo  
    TETY   1   3        -0.20000000     0.54897548     0.00494314     0.20000000     0.54897548     0.00494314 _Ex?Xk  
    Change in Focus                :       0.000000                            0.000000 pGkef0p@  
    Decenter X tolerance on surface 1 pt})JMm  
    TSDX   1            -0.20000000     0.53999563    -0.00403671     0.20000000     0.53999563    -0.00403671 ,cQA*;6  
    Change in Focus                :       0.000000                            0.000000 #s^s_8#&e  
    Decenter Y tolerance on surface 1 =] KIkS3  
    TSDY   1            -0.20000000     0.53999563    -0.00403671     0.20000000     0.53999563    -0.00403671 <%?uYCD  
    Change in Focus                :       0.000000                            0.000000 Xw(3j)xQ  
    Tilt X tolerance on surface (degrees) 1 /0\QL+^!  
    TSTX   1            -0.20000000     0.42678383    -0.11724851     0.20000000     0.42678383    -0.11724851 1v]t!}W:6  
    Change in Focus                :       0.000000                            0.000000 ;,`]O!G:P  
    Tilt Y tolerance on surface (degrees) 1 j+0.= #{??  
    TSTY   1            -0.20000000     0.42678383    -0.11724851     0.20000000     0.42678383    -0.11724851 jtLn j@,  
    Change in Focus                :       0.000000                            0.000000 |[WL2<  
    Decenter X tolerance on surface 2 &;U|7l~vl  
    TSDX   2            -0.20000000     0.51705427    -0.02697807     0.20000000     0.51705427    -0.02697807 <9N4"d !A  
    Change in Focus                :       0.000000                            0.000000 ?*o;o?5s^  
    Decenter Y tolerance on surface 2 Fwv\pJ}$  
    TSDY   2            -0.20000000     0.51705427    -0.02697807     0.20000000     0.51705427    -0.02697807 MPG+B/P&  
    Change in Focus                :       0.000000                            0.000000 ZgBckb  
    Tilt X tolerance on surface (degrees) 2 s01$fFJgO  
    TSTX   2            -0.20000000     0.35349910    -0.19053324     0.20000000     0.35349910    -0.19053324 m3"c (L`B  
    Change in Focus                :       0.000000                            0.000000 'FxYMSZS$  
    Tilt Y tolerance on surface (degrees) 2 3_U\VGm  
    TSTY   2            -0.20000000     0.35349910    -0.19053324     0.20000000     0.35349910    -0.19053324 4k*qVOBa6R  
    Change in Focus                :       0.000000                            0.000000 am (#Fa  
    Decenter X tolerance on surface 3 U,HS;wo;t  
    TSDX   3            -0.20000000     0.53419039    -0.00984195     0.20000000     0.53419039    -0.00984195 AS q`)Rz  
    Change in Focus                :       0.000000                            0.000000 .h6Y< E  
    Decenter Y tolerance on surface 3 '\'7yN'  
    TSDY   3            -0.20000000     0.53419039    -0.00984195     0.20000000     0.53419039    -0.00984195 Cz[5Ug'V  
    Change in Focus                :       0.000000                            0.000000 VO|u8Z"  
    Tilt X tolerance on surface (degrees) 3 J ~'~[,K  
    TSTX   3            -0.20000000     0.42861670    -0.11541563     0.20000000     0.42861670    -0.11541563 /J.0s0 @  
    Change in Focus                :       0.000000                            0.000000 w(#:PsMo<  
    Tilt Y tolerance on surface (degrees) 3 )u Qvt-  
    TSTY   3            -0.20000000     0.42861670    -0.11541563     0.20000000     0.42861670    -0.11541563 Q'C 4pn@  
    Change in Focus                :       0.000000                            0.000000 !p"Kd ~  
    Irregularity of surface 1 in fringes ZmP1C`>  
    TIRR   1            -0.20000000     0.50973587    -0.03429647     0.20000000     0.57333868     0.02930634 $~ VcQ  
    Change in Focus                :       0.000000                            0.000000 <>?^4NC<M  
    Irregularity of surface 2 in fringes  %|bN@@  
    TIRR   2            -0.20000000     0.53400904    -0.01002330     0.20000000     0.55360281     0.00957047 o[imNy~~  
    Change in Focus                :       0.000000                            0.000000 #'KY`&Tw&  
    Irregularity of surface 3 in fringes wRj~Qv~E  
    TIRR   3            -0.20000000     0.58078982     0.03675748     0.20000000     0.49904394    -0.04498840 (I!1sE!?1  
    Change in Focus                :       0.000000                            0.000000 8z0Hx  
    Index tolerance on surface 1 u{pTva  
    TIND   1            -0.00100000     0.52606778    -0.01796456     0.00100000     0.56121811     0.01718578 G\uU- z$)  
    Change in Focus                :       0.000000                            0.000000 \CDAFu#  
    Index tolerance on surface 2 DbQBVy  
    TIND   2            -0.00100000     0.55639086     0.01235852     0.00100000     0.53126361    -0.01276872 Sn0Xl3yr  
    Change in Focus                :       0.000000                           -0.000000 CP@o,v-  
    %Au T8  
    Worst offenders: +O,V6XRr  
    Type                      Value      Criterion        Change U#iT<#!l2  
    TSTY   2            -0.20000000     0.35349910    -0.19053324 sq48#5Tc^r  
    TSTY   2             0.20000000     0.35349910    -0.19053324 (\tq<h0  
    TSTX   2            -0.20000000     0.35349910    -0.19053324 nHE+p\  
    TSTX   2             0.20000000     0.35349910    -0.19053324 9M;I$_U`vj  
    TSTY   1            -0.20000000     0.42678383    -0.11724851 cS5w +`,L  
    TSTY   1             0.20000000     0.42678383    -0.11724851 Px$'(eMj^3  
    TSTX   1            -0.20000000     0.42678383    -0.11724851 @_(nd57oSs  
    TSTX   1             0.20000000     0.42678383    -0.11724851 c.\:peDk  
    TSTY   3            -0.20000000     0.42861670    -0.11541563 [KD}U-(Wg  
    TSTY   3             0.20000000     0.42861670    -0.11541563 d{?)q  
    U:J /\-  
    Estimated Performance Changes based upon Root-Sum-Square method: ]m RF[b$  
    Nominal MTF                 :     0.54403234 pDP33`OFh  
    Estimated change            :    -0.36299231 F61 +n!%8  
    Estimated MTF               :     0.18104003 ^sJ1 ^LT  
    E8+8{ #f;  
    Compensator Statistics: fO0- N>W'P  
    Change in back focus: TjT](?'o  
    Minimum            :        -0.000000 #T Z!#,q  
    Maximum            :         0.000000 =":@Foa  
    Mean               :        -0.000000 ,I("x2  
    Standard Deviation :         0.000000 {6ajsy5=  
    7eTA`@v5A  
    Monte Carlo Analysis: w"yK\OE  
    Number of trials: 20 Wnb)*pPP  
    )0'Y et}  
    Initial Statistics: Normal Distribution b$IY2W<Ln  
    {|G&W^`  
      Trial       Criterion        Change 1LV|t+Sex  
          1     0.42804416    -0.11598818 #@IQlqJfY7  
    Change in Focus                :      -0.400171 "pR $cS  
          2     0.54384387    -0.00018847 _CHKh*KHML  
    Change in Focus                :       1.018470 5/*)+  
          3     0.44510003    -0.09893230 [''=><  
    Change in Focus                :      -0.601922 GcPB'`!M  
          4     0.18154684    -0.36248550 ~_ (!}V  
    Change in Focus                :       0.920681 bBd*}"v^"  
          5     0.28665820    -0.25737414 rHH#@ Zx  
    Change in Focus                :       1.253875 3L%Y"4(mm  
          6     0.21263372    -0.33139862 D-;J;m \  
    Change in Focus                :      -0.903878 =B1`R%t  
          7     0.40051424    -0.14351809 1 OuSH+  
    Change in Focus                :      -1.354815 ^w.k^U=B  
          8     0.48754161    -0.05649072 \xy:6gd:  
    Change in Focus                :       0.215922 FuIWiO(  
          9     0.40357468    -0.14045766 Z`e$~n(Bh  
    Change in Focus                :       0.281783 E>o&GYc  
         10     0.26315315    -0.28087919 L2:oZ&:u`J  
    Change in Focus                :      -1.048393 aMe%#cLI  
         11     0.26120585    -0.28282649 +# m   
    Change in Focus                :       1.017611 c }g$1of87  
         12     0.24033815    -0.30369419 +3(CGNE  
    Change in Focus                :      -0.109292 @`#OC#  
         13     0.37164046    -0.17239188 DK2c]i^|=  
    Change in Focus                :      -0.692430 <e@I1iL37y  
         14     0.48597489    -0.05805744 0b!fWS?,k0  
    Change in Focus                :      -0.662040 1',+&2)oj  
         15     0.21462327    -0.32940907 8Xt=eL/P  
    Change in Focus                :       1.611296 W+fkWq7`Xx  
         16     0.43378226    -0.11025008 }s8*QfK>  
    Change in Focus                :      -0.640081 p?EEox  
         17     0.39321881    -0.15081353 _p3WE9T  
    Change in Focus                :       0.914906 D_L'x"  
         18     0.20692530    -0.33710703 M$DwQ}Z  
    Change in Focus                :       0.801607 I_{9eG1w?  
         19     0.51374068    -0.03029165 rElG7[+)p  
    Change in Focus                :       0.947293 P7M0Ce~iW  
         20     0.38013374    -0.16389860 7!]k#|u  
    Change in Focus                :       0.667010 hfVzzVX:  
    dA3`b*nC  
    Number of traceable Monte Carlo files generated: 20 iX&Z  
    Br?++\  
    Nominal     0.54403234 ZVCv(J  
    Best        0.54384387    Trial     2 |qFN~!  
    Worst       0.18154684    Trial     4 +LvZ87O^~  
    Mean        0.35770970 D(W7O>5vQ2  
    Std Dev     0.11156454 hNgcE,67q  
    .>cL/KaP  
    lUm}nsp=X  
    Compensator Statistics: ^+.e5roBKj  
    Change in back focus: oQE_?">w  
    Minimum            :        -1.354815 +#2@G}j  
    Maximum            :         1.611296  @=^jpSnZ  
    Mean               :         0.161872 ixUiXP  
    Standard Deviation :         0.869664 >Kqj{/SWK  
    2n\i0?RD  
    90% >       0.20977951               O>{t}6o  
    80% >       0.22748071               dRarNW  
    50% >       0.38667627               M\x7=*\  
    20% >       0.46553746               Nc^b8& 2J  
    10% >       0.50064115                *8(t y%5F0  
    X]f#w  
    End of Run. \p_8YC  
    `^@g2c+d  
    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 )@};lmPR  
    s2 t-T0;  
    pNk,jeo  
    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 _16 &K}<  
    9fk\Ay1P  
    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                 hSf#;=9'  
    80% >       0.22748071                 xWI 0s;k  
    50% >       0.38667627                 M%dl?9pbq  
    20% >       0.46553746                 fgz'C?  
    10% >       0.50064115 e"8m+]  
    f;; S  
    最后这个数值是MTF值呢，还是MTF的公差？ D_;n4<|.  
    ucm.~1G(  
    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？？？   ff+9(P>*  
    jgfP|oD  
    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  : \uPTk)oaB  
    90% >       0.20977951                 I*R$*/)  
    80% >       0.22748071                 -Dm.z16  
    50% >       0.38667627                 |6Z M xY  
    20% >       0.46553746                 w1G.^  
    10% >       0.50064115 9>>}-;$  
    ....... A)\DPLAG  
    Bx!` UdRn  
    ~,1q :Kue  
    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   S:\hcW6  
    Mode                : Sensitivities dw!Eao47  
    Sampling            : 2 HwuPjc#  
    Nominal Criterion   : 0.54403234 F ;&e5G  
    Test Wavelength     : 0.6328 6|Q'\  
    93DBZqN  
    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？ /D+$|k mW]  
    W2N7  
    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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