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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 H &fTh  
    |D+p$^L  
    S}mm\<=1  
    D6:DrA:  
    然后添加了默认公差分析，基本没变 ;-Ado8  
    5p{25N_t  
    WL/5 oj  
    3P`WPph  
    然后运行分析的结果如下： ZQ|gt*  
    #/s7\2  
    Analysis of Tolerances =h7[E./U1  
    !mae^A1  
    File : E:\光学设计资料\zemax练习\f500.ZMX 5\3 swP_7  
    Title: E4Zxv*  
    Date : TUE JUN 21 2011 AoU_;B\b%  
    ``6{T1fQS  
    Units are Millimeters. 4znH$M>bU  
    All changes are computed using linear differences. $E@ouX?  
    RUqO!s~#rY  
    Paraxial Focus compensation only. n{$}#NdV  
    BjB&[5?z  
    WARNING: Solves should be removed prior to tolerancing. Lz?*B$h  
    1wlVz#f.  
    Mnemonics: y:C)%cv}*  
    TFRN: Tolerance on curvature in fringes. bl`D+/V   
    TTHI: Tolerance on thickness. Qxky^:B  
    TSDX: Tolerance on surface decentering in x. !YY 6o V  
    TSDY: Tolerance on surface decentering in y. zF?31\GOX  
    TSTX: Tolerance on surface tilt in x (degrees). '9"%@AFxZ  
    TSTY: Tolerance on surface tilt in y (degrees). 3?  };  
    TIRR: Tolerance on irregularity (fringes). ot0U-G(  
    TIND: Tolerance on Nd index of refraction. R~$hWu}}  
    TEDX: Tolerance on element decentering in x. #1B}-PGCm  
    TEDY: Tolerance on element decentering in y. 4?v$<=#21*  
    TETX: Tolerance on element tilt in x (degrees). !*5_pGe  
    TETY: Tolerance on element tilt in y (degrees). W w^7^q&  
    *h:D|4oJ(  
    WARNING: RAY AIMING IS OFF. Very loose tolerances may not be computed accurately. drbe#FObX  
    *|^,DGfQ6  
    WARNING: Boundary constraints on compensators will be ignored. ;*nh=w  
    %uj[`  
    Criterion           : Geometric MTF average S&T at 30.0000 cycles per mm &jt02+Hj'  
    Mode                : Sensitivities X:U=MWc>  
    Sampling            : 2 Q7L)f71i  
    Nominal Criterion   : 0.54403234 z+ uL "PG[  
    Test Wavelength     : 0.6328 #s*k| j}  
    WejyYqr34-  
    4`$5 _} j!  
    Fields: XY Symmetric Angle in degrees `t%|.=R  
    #      X-Field      Y-Field       Weight    VDX    VDY    VCX    VCY lQh~Q<[ge  
    1   0.000E+000   0.000E+000   1.000E+000  0.000  0.000  0.000  0.000 `|&\e_"DE  
    gji*Wq  
    Sensitivity Analysis: 0e)lY='^_  
    UmYD]  
                     |----------------- Minimum ----------------| |----------------- Maximum ----------------| >B`Cch/ 'U  
    Type                      Value      Criterion        Change          Value      Criterion        Change g ,`F<CF9  
    Fringe tolerance on surface 1 6={IMkmA  
    TFRN   1            -1.00000000     0.54257256    -0.00145977     1.00000000     0.54548607     0.00145374 aXX,Zu^  
    Change in Focus                :      -0.000000                            0.000000 ijE<spG  
    Fringe tolerance on surface 2 J_|7$ l/  
    TFRN   2            -1.00000000     0.54177471    -0.00225762     1.00000000     0.54627463     0.00224230 F|6 nwvgq  
    Change in Focus                :       0.000000                            0.000000 tB]`Hj  
    Fringe tolerance on surface 3 w<Zdq}{jO  
    TFRN   3            -1.00000000     0.54779866     0.00376632     1.00000000     0.54022572    -0.00380662 cD5w| rm?i  
    Change in Focus                :      -0.000000                            0.000000 cT\O v P*_  
    Thickness tolerance on surface 1 7qpzk7X?pR  
    TTHI   1   3        -0.20000000     0.54321462    -0.00081772     0.20000000     0.54484759     0.00081525 E2h(w_l  
    Change in Focus                :       0.000000                            0.000000 HJc<Gwm  
    Thickness tolerance on surface 2 +I*k0"gj6  
    TTHI   2   3        -0.20000000     0.54478712     0.00075478     0.20000000     0.54327558    -0.00075675 GahaZ F  
    Change in Focus                :       0.000000                           -0.000000 "pOqd8>]  
    Decenter X tolerance on surfaces 1 through 3 ?0 HR(N(z!  
    TEDX   1   3        -0.20000000     0.54401464   -1.7700E-005     0.20000000     0.54401464   -1.7700E-005 w8G7Jy  
    Change in Focus                :       0.000000                            0.000000 JvKO $^  
    Decenter Y tolerance on surfaces 1 through 3 e jP,29  
    TEDY   1   3        -0.20000000     0.54401464   -1.7700E-005     0.20000000     0.54401464   -1.7700E-005 1]"D%U=  
    Change in Focus                :       0.000000                            0.000000 H3!,d`D.N  
    Tilt X tolerance on surfaces 1 through 3 (degrees) pi|\0lH6W  
    TETX   1   3        -0.20000000     0.54897548     0.00494314     0.20000000     0.54897548     0.00494314 W&HF?w}s  
    Change in Focus                :       0.000000                            0.000000 3xRM 1GgO  
    Tilt Y tolerance on surfaces 1 through 3 (degrees) :b.3CL\.6  
    TETY   1   3        -0.20000000     0.54897548     0.00494314     0.20000000     0.54897548     0.00494314 ,;9ak-$8p  
    Change in Focus                :       0.000000                            0.000000 #c6ui0E%;t  
    Decenter X tolerance on surface 1 X";TZk  
    TSDX   1            -0.20000000     0.53999563    -0.00403671     0.20000000     0.53999563    -0.00403671 7F,07\c  
    Change in Focus                :       0.000000                            0.000000 iz Xbp02  
    Decenter Y tolerance on surface 1 Tw2Xe S  
    TSDY   1            -0.20000000     0.53999563    -0.00403671     0.20000000     0.53999563    -0.00403671 dz{#"No0  
    Change in Focus                :       0.000000                            0.000000 Dq{:R  
    Tilt X tolerance on surface (degrees) 1 (}9cD^F0n  
    TSTX   1            -0.20000000     0.42678383    -0.11724851     0.20000000     0.42678383    -0.11724851 +G<}JJ'V  
    Change in Focus                :       0.000000                            0.000000 ;+TMx(  
    Tilt Y tolerance on surface (degrees) 1 Cw6>^  
    TSTY   1            -0.20000000     0.42678383    -0.11724851     0.20000000     0.42678383    -0.11724851 -FQC9~rR;g  
    Change in Focus                :       0.000000                            0.000000 %=laY_y G  
    Decenter X tolerance on surface 2 W,xi> 5k  
    TSDX   2            -0.20000000     0.51705427    -0.02697807     0.20000000     0.51705427    -0.02697807 ,.~ W  
    Change in Focus                :       0.000000                            0.000000 gmXy>{T  
    Decenter Y tolerance on surface 2 ue,#, 3{m  
    TSDY   2            -0.20000000     0.51705427    -0.02697807     0.20000000     0.51705427    -0.02697807 ~D<7W4c  
    Change in Focus                :       0.000000                            0.000000 d1UVvyH  
    Tilt X tolerance on surface (degrees) 2 ) ~ l\  
    TSTX   2            -0.20000000     0.35349910    -0.19053324     0.20000000     0.35349910    -0.19053324 d-9uv|SJ  
    Change in Focus                :       0.000000                            0.000000 KDux$V4  
    Tilt Y tolerance on surface (degrees) 2 eKL]E!  
    TSTY   2            -0.20000000     0.35349910    -0.19053324     0.20000000     0.35349910    -0.19053324 O]c=Yyl  
    Change in Focus                :       0.000000                            0.000000 `6 |i&w:b  
    Decenter X tolerance on surface 3 d\v$%0  
    TSDX   3            -0.20000000     0.53419039    -0.00984195     0.20000000     0.53419039    -0.00984195 *>E I2HX  
    Change in Focus                :       0.000000                            0.000000 6\; 4 4,3  
    Decenter Y tolerance on surface 3 "9c.CI  
    TSDY   3            -0.20000000     0.53419039    -0.00984195     0.20000000     0.53419039    -0.00984195 sjkWz2]S  
    Change in Focus                :       0.000000                            0.000000 pYYqGv^oa  
    Tilt X tolerance on surface (degrees) 3 H+S~ bzz  
    TSTX   3            -0.20000000     0.42861670    -0.11541563     0.20000000     0.42861670    -0.11541563 SNQz8(O  
    Change in Focus                :       0.000000                            0.000000 <9Lv4`]GU5  
    Tilt Y tolerance on surface (degrees) 3 t#fs:A7P?}  
    TSTY   3            -0.20000000     0.42861670    -0.11541563     0.20000000     0.42861670    -0.11541563 ;b, -$A  
    Change in Focus                :       0.000000                            0.000000 hubfK~  
    Irregularity of surface 1 in fringes %4bO_vb<9  
    TIRR   1            -0.20000000     0.50973587    -0.03429647     0.20000000     0.57333868     0.02930634 +P>Gy`D9  
    Change in Focus                :       0.000000                            0.000000 L~@ma(TV{K  
    Irregularity of surface 2 in fringes yd7lcb [  
    TIRR   2            -0.20000000     0.53400904    -0.01002330     0.20000000     0.55360281     0.00957047 \4[c}l  
    Change in Focus                :       0.000000                            0.000000 + AE&GU  
    Irregularity of surface 3 in fringes fG:PdIJ7_  
    TIRR   3            -0.20000000     0.58078982     0.03675748     0.20000000     0.49904394    -0.04498840 W,QnU d'N  
    Change in Focus                :       0.000000                            0.000000 eXj\DjttG}  
    Index tolerance on surface 1 ]jHh7> D  
    TIND   1            -0.00100000     0.52606778    -0.01796456     0.00100000     0.56121811     0.01718578 +")qi =  
    Change in Focus                :       0.000000                            0.000000 B'WCN&N  
    Index tolerance on surface 2 }"F ?H:\  
    TIND   2            -0.00100000     0.55639086     0.01235852     0.00100000     0.53126361    -0.01276872 8[6ny=S`  
    Change in Focus                :       0.000000                           -0.000000 J!21`M-Ue  
    N&6_8=3z  
    Worst offenders: qZT 4+&y  
    Type                      Value      Criterion        Change `_NnQ%  
    TSTY   2            -0.20000000     0.35349910    -0.19053324 /#S4espE  
    TSTY   2             0.20000000     0.35349910    -0.19053324 ,Y+r<;  
    TSTX   2            -0.20000000     0.35349910    -0.19053324  ET >S  
    TSTX   2             0.20000000     0.35349910    -0.19053324 hQgk.$g  
    TSTY   1            -0.20000000     0.42678383    -0.11724851 b*I&k":  
    TSTY   1             0.20000000     0.42678383    -0.11724851 t_[M &  
    TSTX   1            -0.20000000     0.42678383    -0.11724851 e%P+KX  
    TSTX   1             0.20000000     0.42678383    -0.11724851 D8r>a"gx  
    TSTY   3            -0.20000000     0.42861670    -0.11541563 -mev%lV  
    TSTY   3             0.20000000     0.42861670    -0.11541563 W0+gfg  
    5~_eN  
    Estimated Performance Changes based upon Root-Sum-Square method: (lyt"Ty  
    Nominal MTF                 :     0.54403234 *r)zBr  
    Estimated change            :    -0.36299231 w Mlf3Uz  
    Estimated MTF               :     0.18104003 YtwmlIar`  
    U^E  
    Compensator Statistics: OqfhCNAY  
    Change in back focus: 4kW 30Ma  
    Minimum            :        -0.000000 %v?jG(o  
    Maximum            :         0.000000 'Z*\1Ci  
    Mean               :        -0.000000 nUI63?  
    Standard Deviation :         0.000000 Uv @!i0W  
    e.)yV'%L  
    Monte Carlo Analysis: J8sJ~FnUj  
    Number of trials: 20 d1srV`  
    iQ]T+}nn_  
    Initial Statistics: Normal Distribution hj^G} 4  
    IqvqvHxLX  
      Trial       Criterion        Change C?GvTc  
          1     0.42804416    -0.11598818 B)j`}7O 06  
    Change in Focus                :      -0.400171 n9<roH  
          2     0.54384387    -0.00018847 tJ?qcT?  
    Change in Focus                :       1.018470 VYl_U?D  
          3     0.44510003    -0.09893230 ,\sR;=svK  
    Change in Focus                :      -0.601922 Bo](n*i  
          4     0.18154684    -0.36248550 ifJv~asp   
    Change in Focus                :       0.920681 :wv :#EaH  
          5     0.28665820    -0.25737414 >5Q^9 9V  
    Change in Focus                :       1.253875 nvO%  
          6     0.21263372    -0.33139862 r+{!@`dYi  
    Change in Focus                :      -0.903878 Vze!/ED  
          7     0.40051424    -0.14351809 kbIY%\QSO  
    Change in Focus                :      -1.354815 PTuCN  
          8     0.48754161    -0.05649072 \j2 : 6]Hm  
    Change in Focus                :       0.215922 }$&T O$LX  
          9     0.40357468    -0.14045766 p"hm.=,  
    Change in Focus                :       0.281783 2 Ft0C2  
         10     0.26315315    -0.28087919 Hm+6QgCs  
    Change in Focus                :      -1.048393 < '>d0:>N  
         11     0.26120585    -0.28282649 3X-{2R/ 3  
    Change in Focus                :       1.017611 dU sJv  
         12     0.24033815    -0.30369419 u):%5F/  
    Change in Focus                :      -0.109292 X <ba|(  
         13     0.37164046    -0.17239188 3oppV_^JdT  
    Change in Focus                :      -0.692430 uZqu xu.  
         14     0.48597489    -0.05805744 O" X!S_R  
    Change in Focus                :      -0.662040 G:h;C].  
         15     0.21462327    -0.32940907 gqO%^b)6  
    Change in Focus                :       1.611296 KV^:sxU  
         16     0.43378226    -0.11025008 7})!>p )  
    Change in Focus                :      -0.640081 IEIxjek  
         17     0.39321881    -0.15081353 + ,vJ7  
    Change in Focus                :       0.914906 #GDh/t2@  
         18     0.20692530    -0.33710703 wRV`v$*6  
    Change in Focus                :       0.801607 E5Snl#Gl\0  
         19     0.51374068    -0.03029165 *'s2 K  
    Change in Focus                :       0.947293 M@!]U:5~V  
         20     0.38013374    -0.16389860 ;9!yh\\   
    Change in Focus                :       0.667010 V\k5h  
    Zi<Sw  
    Number of traceable Monte Carlo files generated: 20 T9<H%iF  
    ;H m-,W  
    Nominal     0.54403234 ~$y#(YbH  
    Best        0.54384387    Trial     2 &|'Kut?8  
    Worst       0.18154684    Trial     4 8M3p\}O  
    Mean        0.35770970 O9qKwn;q(  
    Std Dev     0.11156454 }OX>(  
    WRLu 3nBx  
    (_%JF[W  
    Compensator Statistics: nL7S3  
    Change in back focus: >PTu*6Z  
    Minimum            :        -1.354815 d 40'3]/{  
    Maximum            :         1.611296 T|BY00Sz`  
    Mean               :         0.161872 IJ #v"! D  
    Standard Deviation :         0.869664 5Re`D|8  
    72 s$  
    90% >       0.20977951               <@x+N%C  
    80% >       0.22748071               ^)C$8:@  
    50% >       0.38667627               dp//p)B>  
    20% >       0.46553746               }'w^<:RSy  
    10% >       0.50064115                V%{ 9o  
    fdCxMKlu;  
    End of Run. p@NEr,GB  
    H z < M  
    这就有了些疑问，为什么我选择的补偿器是近轴焦点，而分析结果近轴焦点都不变化？？应该是变得。另外最后的蒙特卡洛分析，只有10%的大于0.5（我用的是MTF作为评价方式），可是我设计的MTF如图 yNWbI0a  
    ,h^;~|GT  
    Op$J"R  
    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 ZAnO$pA  
    F"@'(b  
    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                 nu<!2xs,  
    80% >       0.22748071                 ofrlTw&o  
    50% >       0.38667627                 Mb/6>  
    20% >       0.46553746                 fdH'z:Xao  
    10% >       0.50064115 5_tK3Q8?  
    r;6YCI=z  
    最后这个数值是MTF值呢，还是MTF的公差？ 7rDRu]  
    5tCq}]q#P  
    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？？？   C2,cyhr  
    Mp @(/  
    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  : ,r,;2,;6nd  
    90% >       0.20977951                 t"Rf67  
    80% >       0.22748071                 O.f3 (e!  
    50% >       0.38667627                 sWzXl~JbF  
    20% >       0.46553746                 DQXx}%Px  
    10% >       0.50064115 U1tPw`0h  
    ....... !b8|{#qh.  
    j|8{Vyqd  
    X"59`Yh  
    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   bvvx(?!  
    Mode                : Sensitivities D)$k{v#~  
    Sampling            : 2 G2k71{jK  
    Nominal Criterion   : 0.54403234 SvJ8Kl OV  
    Test Wavelength     : 0.6328 j`hbQp\`  
    dL"i\5#%A  
    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？ 88U  
    *Y?]="8c#;  
    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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