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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 E0|aI4S4  
    ~Mx fud  
    'K!kJ9oqe  
    8?$2;uGL  
    然后添加了默认公差分析,基本没变 Gg+>_b{S5T  
    ~,:f,FkSQ  
    J B|I/\(A  
    )eFK@goGeb  
    然后运行分析的结果如下: #.@=xhK/  
    8+ u8piG  
    Analysis of Tolerances j0GI[#  
    p%s D>1k  
    File : E:\光学设计资料\zemax练习\f500.ZMX zaZnL7ZJX  
    Title: @.{  
    Date : TUE JUN 21 2011 w9FI*30  
    { nV zN(  
    Units are Millimeters. \x!>5Z Y  
    All changes are computed using linear differences. (g Z!o_  
    >g[W@FhT'k  
    Paraxial Focus compensation only. jz)H?UuDY  
    DHAWUS6  
    WARNING: Solves should be removed prior to tolerancing. TU/J]'))C  
    Y!L jy [/  
    Mnemonics: I%p#E#[G  
    TFRN: Tolerance on curvature in fringes. o;[oy#aWl_  
    TTHI: Tolerance on thickness. nqBu C  
    TSDX: Tolerance on surface decentering in x. _(hwU>.  
    TSDY: Tolerance on surface decentering in y. c;^J!e  
    TSTX: Tolerance on surface tilt in x (degrees). {ZcZ\Q;6  
    TSTY: Tolerance on surface tilt in y (degrees). q :bKT#\  
    TIRR: Tolerance on irregularity (fringes). BUb(BzC  
    TIND: Tolerance on Nd index of refraction. gy{a+Wbc*  
    TEDX: Tolerance on element decentering in x. ~K9U0ypH  
    TEDY: Tolerance on element decentering in y. zgqw*)C~  
    TETX: Tolerance on element tilt in x (degrees). QP#Wfk(C  
    TETY: Tolerance on element tilt in y (degrees). j1ZFsTFMWp  
    }$-VI\96  
    WARNING: RAY AIMING IS OFF. Very loose tolerances may not be computed accurately. BGX@n#:  
    Pio^5jhB6  
    WARNING: Boundary constraints on compensators will be ignored. IfcFlXmt2  
    gNwXOd u  
    Criterion           : Geometric MTF average S&T at 30.0000 cycles per mm aM~fRra7  
    Mode                : Sensitivities qC )VT3  
    Sampling            : 2 c #kV+n<  
    Nominal Criterion   : 0.54403234 guv@t&;t0  
    Test Wavelength     : 0.6328 RY{tX`  
    =@2V#X]M*  
    ^mi4q[PM  
    Fields: XY Symmetric Angle in degrees 6<Z: Xw  
    #      X-Field      Y-Field       Weight    VDX    VDY    VCX    VCY I*}#nY0+  
    1   0.000E+000   0.000E+000   1.000E+000  0.000  0.000  0.000  0.000 vi8~j  
    { ZX C%(u  
    Sensitivity Analysis: Jdn*?hc+  
    <+gl"lG  
                     |----------------- Minimum ----------------| |----------------- Maximum ----------------| 3J T3;O  
    Type                      Value      Criterion        Change          Value      Criterion        Change 1v&Fo2ML  
    Fringe tolerance on surface 1 "!tw ,Gp  
    TFRN   1            -1.00000000     0.54257256    -0.00145977     1.00000000     0.54548607     0.00145374 d|]O<]CG_  
    Change in Focus                :      -0.000000                            0.000000 n*Vd<m;w  
    Fringe tolerance on surface 2 VA'X!(Cv  
    TFRN   2            -1.00000000     0.54177471    -0.00225762     1.00000000     0.54627463     0.00224230 t1jlxK  
    Change in Focus                :       0.000000                            0.000000 JtpY][}"~3  
    Fringe tolerance on surface 3 A Vm{#^p[(  
    TFRN   3            -1.00000000     0.54779866     0.00376632     1.00000000     0.54022572    -0.00380662 `mjx4Lb  
    Change in Focus                :      -0.000000                            0.000000 | ",[C3Jg  
    Thickness tolerance on surface 1 9T2A)a]0  
    TTHI   1   3        -0.20000000     0.54321462    -0.00081772     0.20000000     0.54484759     0.00081525 xn@0pL3B~  
    Change in Focus                :       0.000000                            0.000000 z,FTsR$x  
    Thickness tolerance on surface 2 v Q"s  
    TTHI   2   3        -0.20000000     0.54478712     0.00075478     0.20000000     0.54327558    -0.00075675 .vS6_  
    Change in Focus                :       0.000000                           -0.000000 ]TgP!M&q  
    Decenter X tolerance on surfaces 1 through 3 O[)]dD&'  
    TEDX   1   3        -0.20000000     0.54401464   -1.7700E-005     0.20000000     0.54401464   -1.7700E-005 ttaQlEa=Z  
    Change in Focus                :       0.000000                            0.000000 kLt9; <L  
    Decenter Y tolerance on surfaces 1 through 3 &_d/ciq1f  
    TEDY   1   3        -0.20000000     0.54401464   -1.7700E-005     0.20000000     0.54401464   -1.7700E-005  }m%?&c  
    Change in Focus                :       0.000000                            0.000000 lVdT^"~3  
    Tilt X tolerance on surfaces 1 through 3 (degrees) IzdTXc f  
    TETX   1   3        -0.20000000     0.54897548     0.00494314     0.20000000     0.54897548     0.00494314 xwnoZ&h  
    Change in Focus                :       0.000000                            0.000000 1Xr"h:U_X  
    Tilt Y tolerance on surfaces 1 through 3 (degrees) t*d >eK`:N  
    TETY   1   3        -0.20000000     0.54897548     0.00494314     0.20000000     0.54897548     0.00494314 ]<T8ZA_Y;  
    Change in Focus                :       0.000000                            0.000000 hNnX-^J<o  
    Decenter X tolerance on surface 1 *fi;ZUPW3  
    TSDX   1            -0.20000000     0.53999563    -0.00403671     0.20000000     0.53999563    -0.00403671 l(#ke  
    Change in Focus                :       0.000000                            0.000000 VtO;UN  
    Decenter Y tolerance on surface 1 2l@"p!ar=  
    TSDY   1            -0.20000000     0.53999563    -0.00403671     0.20000000     0.53999563    -0.00403671 ZQ~myqx,+L  
    Change in Focus                :       0.000000                            0.000000 & 8' (  
    Tilt X tolerance on surface (degrees) 1 ncattp   
    TSTX   1            -0.20000000     0.42678383    -0.11724851     0.20000000     0.42678383    -0.11724851 RP,:[}mPl  
    Change in Focus                :       0.000000                            0.000000 5!F\h'E  
    Tilt Y tolerance on surface (degrees) 1 j- YJ."  
    TSTY   1            -0.20000000     0.42678383    -0.11724851     0.20000000     0.42678383    -0.11724851 HCG@#W<wc  
    Change in Focus                :       0.000000                            0.000000 z8/xGQn  
    Decenter X tolerance on surface 2 eR-=<0Iw;  
    TSDX   2            -0.20000000     0.51705427    -0.02697807     0.20000000     0.51705427    -0.02697807 {^2W>^  
    Change in Focus                :       0.000000                            0.000000 K- I\P6R`  
    Decenter Y tolerance on surface 2 LxlbD#<V  
    TSDY   2            -0.20000000     0.51705427    -0.02697807     0.20000000     0.51705427    -0.02697807 b"nG-0JR  
    Change in Focus                :       0.000000                            0.000000 oU0 h3  
    Tilt X tolerance on surface (degrees) 2 H5rPq_R  
    TSTX   2            -0.20000000     0.35349910    -0.19053324     0.20000000     0.35349910    -0.19053324 M6]0Y@@>  
    Change in Focus                :       0.000000                            0.000000 ~sU?"V  
    Tilt Y tolerance on surface (degrees) 2 sQ}%7BMK  
    TSTY   2            -0.20000000     0.35349910    -0.19053324     0.20000000     0.35349910    -0.19053324 j\'+wVyo  
    Change in Focus                :       0.000000                            0.000000 ?,:#8.9  
    Decenter X tolerance on surface 3 pSQCT  
    TSDX   3            -0.20000000     0.53419039    -0.00984195     0.20000000     0.53419039    -0.00984195 )W]>\=@Y  
    Change in Focus                :       0.000000                            0.000000 9G#8 %[W  
    Decenter Y tolerance on surface 3 5BHOHw D{  
    TSDY   3            -0.20000000     0.53419039    -0.00984195     0.20000000     0.53419039    -0.00984195 cc41b*ci$  
    Change in Focus                :       0.000000                            0.000000 r|^lt7\  
    Tilt X tolerance on surface (degrees) 3 *:9 >W$0u  
    TSTX   3            -0.20000000     0.42861670    -0.11541563     0.20000000     0.42861670    -0.11541563 e(~'pk"mZ  
    Change in Focus                :       0.000000                            0.000000 8Y\OCwO  
    Tilt Y tolerance on surface (degrees) 3 >AQ) x  
    TSTY   3            -0.20000000     0.42861670    -0.11541563     0.20000000     0.42861670    -0.11541563 1GG>.RCP  
    Change in Focus                :       0.000000                            0.000000 y98JiNq  
    Irregularity of surface 1 in fringes Y  .  
    TIRR   1            -0.20000000     0.50973587    -0.03429647     0.20000000     0.57333868     0.02930634 2"leUur~rO  
    Change in Focus                :       0.000000                            0.000000 19F ;oFp  
    Irregularity of surface 2 in fringes v`S2M  
    TIRR   2            -0.20000000     0.53400904    -0.01002330     0.20000000     0.55360281     0.00957047 rToaGQh  
    Change in Focus                :       0.000000                            0.000000 SbS$(Gt#Bv  
    Irregularity of surface 3 in fringes mA(nyF  
    TIRR   3            -0.20000000     0.58078982     0.03675748     0.20000000     0.49904394    -0.04498840 "($Lx  
    Change in Focus                :       0.000000                            0.000000 BFMS*t`  
    Index tolerance on surface 1 E+}GxFG-:  
    TIND   1            -0.00100000     0.52606778    -0.01796456     0.00100000     0.56121811     0.01718578 %'L].+$t  
    Change in Focus                :       0.000000                            0.000000 %1\v7Xw{9  
    Index tolerance on surface 2 B;z;vrrL  
    TIND   2            -0.00100000     0.55639086     0.01235852     0.00100000     0.53126361    -0.01276872 1mHwYT+  
    Change in Focus                :       0.000000                           -0.000000 ;Y'8:ncDn  
    K`Bq(z?/  
    Worst offenders: -RG8<bI,  
    Type                      Value      Criterion        Change Z}8k[*.  
    TSTY   2            -0.20000000     0.35349910    -0.19053324 @s%X  
    TSTY   2             0.20000000     0.35349910    -0.19053324 %n05 Jitl  
    TSTX   2            -0.20000000     0.35349910    -0.19053324 17>5#JLP  
    TSTX   2             0.20000000     0.35349910    -0.19053324 ;w`sz.  
    TSTY   1            -0.20000000     0.42678383    -0.11724851 ;OOj[%.  
    TSTY   1             0.20000000     0.42678383    -0.11724851 %cH8;5U40  
    TSTX   1            -0.20000000     0.42678383    -0.11724851 Z+Yeg  
    TSTX   1             0.20000000     0.42678383    -0.11724851 nnt8 sf@\  
    TSTY   3            -0.20000000     0.42861670    -0.11541563 `d7gm;ykp  
    TSTY   3             0.20000000     0.42861670    -0.11541563 N;-/wip  
    j)jCu ;`  
    Estimated Performance Changes based upon Root-Sum-Square method: |7 &|>  
    Nominal MTF                 :     0.54403234 `"a? a5]k  
    Estimated change            :    -0.36299231 U^%9 )4bj  
    Estimated MTF               :     0.18104003 z,pNb%*O  
    R'6@n#:  
    Compensator Statistics: EXA^!/)  
    Change in back focus: wgY6D!Y   
    Minimum            :        -0.000000 TC qkm^xv  
    Maximum            :         0.000000 7:n?PN(p6a  
    Mean               :        -0.000000 In f9wq\  
    Standard Deviation :         0.000000 ,*/Pg 52?  
    7MY)\aH  
    Monte Carlo Analysis: ,{k<JA {  
    Number of trials: 20 8h2D+1,PZC  
    vqq6B/r@Fu  
    Initial Statistics: Normal Distribution WgE@89  
    807al^s x  
      Trial       Criterion        Change sffhPX\I  
          1     0.42804416    -0.11598818 jm+ V$YBP  
    Change in Focus                :      -0.400171 }@d>,1DU  
          2     0.54384387    -0.00018847 `9/0J-7*  
    Change in Focus                :       1.018470 d9O:,DKf  
          3     0.44510003    -0.09893230 SOVj Eo4'3  
    Change in Focus                :      -0.601922 ~gP7s_ qr{  
          4     0.18154684    -0.36248550 R]Hz8 _X  
    Change in Focus                :       0.920681 'X9AG6K1  
          5     0.28665820    -0.25737414 Te# ]Cn|  
    Change in Focus                :       1.253875 & x`&03X  
          6     0.21263372    -0.33139862 rfYP*QQY  
    Change in Focus                :      -0.903878 G'u|Q mb1  
          7     0.40051424    -0.14351809 ~i% -WX  
    Change in Focus                :      -1.354815 |2O')3p"9  
          8     0.48754161    -0.05649072 j(j#0dXLh  
    Change in Focus                :       0.215922 C>^,*7dS  
          9     0.40357468    -0.14045766 iHPUmTus--  
    Change in Focus                :       0.281783 4Rx~s7l  
         10     0.26315315    -0.28087919 AcKU^T+  
    Change in Focus                :      -1.048393 oz LH]*  
         11     0.26120585    -0.28282649 j_p`Ng  
    Change in Focus                :       1.017611 mjbTy"}"  
         12     0.24033815    -0.30369419 Z:!IX^q;}n  
    Change in Focus                :      -0.109292 )i;un.  
         13     0.37164046    -0.17239188 V\0E=M*P  
    Change in Focus                :      -0.692430 sm0fAL  
         14     0.48597489    -0.05805744 vv+km+  
    Change in Focus                :      -0.662040 _ Hc%4I  
         15     0.21462327    -0.32940907 Qlw>+y-i  
    Change in Focus                :       1.611296 2HD:JdL  
         16     0.43378226    -0.11025008 K4:  $=  
    Change in Focus                :      -0.640081 09'oz*v{#  
         17     0.39321881    -0.15081353 J96uyS*  
    Change in Focus                :       0.914906 9UV9h_.x  
         18     0.20692530    -0.33710703 @Gt`Ds9=  
    Change in Focus                :       0.801607 3f"C!l]Xu  
         19     0.51374068    -0.03029165 `{[RjM`  
    Change in Focus                :       0.947293 uAUp5XP|Z  
         20     0.38013374    -0.16389860 e?b)p5g  
    Change in Focus                :       0.667010 ++b$E&lYU  
    w9MoT.kI}  
    Number of traceable Monte Carlo files generated: 20 /2xSNalC  
    J/ vK6cO\  
    Nominal     0.54403234 qw<HY$3=  
    Best        0.54384387    Trial     2 Xw t`(h[u  
    Worst       0.18154684    Trial     4 [KSH~:h:NR  
    Mean        0.35770970 V,Q4n%h1.  
    Std Dev     0.11156454 Huc|6~X  
    Zyu/|O g  
    X3',vey  
    Compensator Statistics: Br!9x {q*  
    Change in back focus: ]W/>Ldv  
    Minimum            :        -1.354815 Ird|C[la  
    Maximum            :         1.611296 E$A3|rjnoN  
    Mean               :         0.161872 \9/RAY_G  
    Standard Deviation :         0.869664 s9@Sd  
    l(!/Q|Q|  
    90% >       0.20977951               vQ1 v# Z  
    80% >       0.22748071               XRxj  W  
    50% >       0.38667627               :QPf~\w?  
    20% >       0.46553746               (5a1P;_Y  
    10% >       0.50064115                uH:YKH':/  
    t0Mx!p'T  
    End of Run. \vRd}   
    WF[bO7:  
    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 j/KO|iNL2  
    6@V~0DG  
    =^tA_AxVw  
    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 V kjuyK  
    P6\6?am  
    不吝赐教
     
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    离线sansummer
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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?
    离线sansummer
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    只看该作者 2楼 发表于: 2011-06-22
    90% >       0.20977951                 #oni:]E!m  
    80% >       0.22748071                 T~:|!`  
    50% >       0.38667627                 om h{0jA0  
    20% >       0.46553746                 c>"cX&  
    10% >       0.50064115 ?OlV"zK  
    _zWfI.o  
    最后这个数值是MTF值呢,还是MTF的公差? /Q{P3:k  
    tmUFT  
    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???   2lVHZ\G  
    YXo|~p;=Y  
    怎么没人啊,大家讨论讨论吗
    离线sansummer
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    只看该作者 3楼 发表于: 2011-06-23
    没有人啊???
    离线天地大同
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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  : ~/.7l8)  
    90% >       0.20977951                 aaD;jxT&M|  
    80% >       0.22748071                 #9K-7je;j  
    50% >       0.38667627                 yR(x+ Gs{]  
    20% >       0.46553746                 ?QE,;QtpK  
    10% >       0.50064115 6G=j6gK%P  
    ....... ~ vqa7~}m  
    OS8q( 2z?s  
    4:gRr   
    这些数值都是MTF值
    离线天地大同
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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   ,c NLkoN  
    Mode                : Sensitivities ynbuN x*  
    Sampling            : 2 >y,-v:Vy  
    Nominal Criterion   : 0.54403234 eH{[C*  
    Test Wavelength     : 0.6328 7Hs%Cc"  
    S\;V4@<Kn  
    波长632.8nm 时 mtf 是 0.54403234  没达到0.6
    离线sansummer
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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? >6?__v]9G  
    R~PA 1wDZ  
    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?
    离线天地大同
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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