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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 Rw ao5l=x  
    MHr0CYyb.  
    vz #wP  
    v!{'23`87  
    然后添加了默认公差分析，基本没变  Vq)gpR  
    T.w}6? 2  
    gQpD]p%k  
    <&Y}j&(  
    然后运行分析的结果如下： z1SMQLk  
    )<x;ra^  
    Analysis of Tolerances Aiks>Cyi23  
    400Tw`AiJ  
    File : E:\光学设计资料\zemax练习\f500.ZMX o )nT   
    Title: oA3W {  
    Date : TUE JUN 21 2011 j zmSFKg*  
    ?Str*XA;  
    Units are Millimeters. M\?uDC9  
    All changes are computed using linear differences. Sv ~1XL W  
    \l=KWa3Q  
    Paraxial Focus compensation only. ; LF)u2x=  
    s?G'l=CcKu  
    WARNING: Solves should be removed prior to tolerancing. y%IG:kZ,  
    9*TS90>a  
    Mnemonics: M8",t{7  
    TFRN: Tolerance on curvature in fringes. ^;CR0.4  
    TTHI: Tolerance on thickness. !8"$d_=h  
    TSDX: Tolerance on surface decentering in x. X@h^T> ["  
    TSDY: Tolerance on surface decentering in y. il>x!)?o  
    TSTX: Tolerance on surface tilt in x (degrees). !AD0 -fZ  
    TSTY: Tolerance on surface tilt in y (degrees). Ky '3z"  
    TIRR: Tolerance on irregularity (fringes). (9YYv+GGd*  
    TIND: Tolerance on Nd index of refraction. (4{ C7  
    TEDX: Tolerance on element decentering in x. 2NA rE@  
    TEDY: Tolerance on element decentering in y.  $`XN  
    TETX: Tolerance on element tilt in x (degrees). =@1R ozt  
    TETY: Tolerance on element tilt in y (degrees). Z*)y.i`  
    74}eF)(me  
    WARNING: RAY AIMING IS OFF. Very loose tolerances may not be computed accurately. we H@S  
    mS)|6=Y  
    WARNING: Boundary constraints on compensators will be ignored. =ve*g&  
    _8NEwwhc  
    Criterion           : Geometric MTF average S&T at 30.0000 cycles per mm |B1; l<|`  
    Mode                : Sensitivities [N+ m5{tT  
    Sampling            : 2 _86*.3fQG  
    Nominal Criterion   : 0.54403234 LpiHoavv  
    Test Wavelength     : 0.6328 C$'D]fX  
    Av;q:x?  
    ,>QMyI hv  
    Fields: XY Symmetric Angle in degrees )4'x7Qg/  
    #      X-Field      Y-Field       Weight    VDX    VDY    VCX    VCY +C'TW^  
    1   0.000E+000   0.000E+000   1.000E+000  0.000  0.000  0.000  0.000 StdS$XW  
    4(Cd  
    Sensitivity Analysis: r{_B:  
    [B"dH-r7  
                     |----------------- Minimum ----------------| |----------------- Maximum ----------------| OZ>)sL  
    Type                      Value      Criterion        Change          Value      Criterion        Change )O2Nlk~l&  
    Fringe tolerance on surface 1 U=&^H!LVY  
    TFRN   1            -1.00000000     0.54257256    -0.00145977     1.00000000     0.54548607     0.00145374 =$)4:  
    Change in Focus                :      -0.000000                            0.000000 `\W   
    Fringe tolerance on surface 2 !sfXq"F  
    TFRN   2            -1.00000000     0.54177471    -0.00225762     1.00000000     0.54627463     0.00224230 nL":0!DTRD  
    Change in Focus                :       0.000000                            0.000000 E VN-<=i^  
    Fringe tolerance on surface 3 =.qm8+  
    TFRN   3            -1.00000000     0.54779866     0.00376632     1.00000000     0.54022572    -0.00380662 d4y9AE@k  
    Change in Focus                :      -0.000000                            0.000000 DD/>{kff  
    Thickness tolerance on surface 1 Xx3 g3P  
    TTHI   1   3        -0.20000000     0.54321462    -0.00081772     0.20000000     0.54484759     0.00081525 #K :-Bys5v  
    Change in Focus                :       0.000000                            0.000000 WNn[L=f  
    Thickness tolerance on surface 2 *]}CSZ[>  
    TTHI   2   3        -0.20000000     0.54478712     0.00075478     0.20000000     0.54327558    -0.00075675 cQ3W;F8|n  
    Change in Focus                :       0.000000                           -0.000000 +{")E)  
    Decenter X tolerance on surfaces 1 through 3 (xZr ]v ]U  
    TEDX   1   3        -0.20000000     0.54401464   -1.7700E-005     0.20000000     0.54401464   -1.7700E-005 PJxak3  
    Change in Focus                :       0.000000                            0.000000 ,]PyDq6  
    Decenter Y tolerance on surfaces 1 through 3 eK Z@ FEZ  
    TEDY   1   3        -0.20000000     0.54401464   -1.7700E-005     0.20000000     0.54401464   -1.7700E-005 yqC Q24  
    Change in Focus                :       0.000000                            0.000000 c-4m8Kg?L  
    Tilt X tolerance on surfaces 1 through 3 (degrees) kf%&d}2to  
    TETX   1   3        -0.20000000     0.54897548     0.00494314     0.20000000     0.54897548     0.00494314 (~j,mk  
    Change in Focus                :       0.000000                            0.000000 mQd4#LJ_  
    Tilt Y tolerance on surfaces 1 through 3 (degrees) ]>R`;"(  
    TETY   1   3        -0.20000000     0.54897548     0.00494314     0.20000000     0.54897548     0.00494314 aN^]bs?R  
    Change in Focus                :       0.000000                            0.000000 *#&k+{a^2  
    Decenter X tolerance on surface 1 qj~flw1:  
    TSDX   1            -0.20000000     0.53999563    -0.00403671     0.20000000     0.53999563    -0.00403671 f7XQ~b  
    Change in Focus                :       0.000000                            0.000000 ID67?:%r  
    Decenter Y tolerance on surface 1 uipq=Yp.  
    TSDY   1            -0.20000000     0.53999563    -0.00403671     0.20000000     0.53999563    -0.00403671 prNhn:j  
    Change in Focus                :       0.000000                            0.000000 ,op]-CY 5  
    Tilt X tolerance on surface (degrees) 1 ?muDTD%c  
    TSTX   1            -0.20000000     0.42678383    -0.11724851     0.20000000     0.42678383    -0.11724851 &8[ZN$Xe"  
    Change in Focus                :       0.000000                            0.000000 fD1?z"lo  
    Tilt Y tolerance on surface (degrees) 1 qP~WEcH`[  
    TSTY   1            -0.20000000     0.42678383    -0.11724851     0.20000000     0.42678383    -0.11724851 1R0ffP]  
    Change in Focus                :       0.000000                            0.000000 U@Z>/ q  
    Decenter X tolerance on surface 2 NFk}3w:  
    TSDX   2            -0.20000000     0.51705427    -0.02697807     0.20000000     0.51705427    -0.02697807 ?PBa'g  
    Change in Focus                :       0.000000                            0.000000 8YuJ8KC  
    Decenter Y tolerance on surface 2 #O2wyG)oU  
    TSDY   2            -0.20000000     0.51705427    -0.02697807     0.20000000     0.51705427    -0.02697807 uije#cj#O  
    Change in Focus                :       0.000000                            0.000000 LHs-&  
    Tilt X tolerance on surface (degrees) 2 J|V K P7  
    TSTX   2            -0.20000000     0.35349910    -0.19053324     0.20000000     0.35349910    -0.19053324 2 ;JQX!  
    Change in Focus                :       0.000000                            0.000000 Ye9Y^+-  
    Tilt Y tolerance on surface (degrees) 2 +c^_^Z$_4o  
    TSTY   2            -0.20000000     0.35349910    -0.19053324     0.20000000     0.35349910    -0.19053324 ' |&>/dyq  
    Change in Focus                :       0.000000                            0.000000 nz4<pvC,*  
    Decenter X tolerance on surface 3 0cHfxy3  
    TSDX   3            -0.20000000     0.53419039    -0.00984195     0.20000000     0.53419039    -0.00984195 sX+`wc  
    Change in Focus                :       0.000000                            0.000000 ^_v[QV  
    Decenter Y tolerance on surface 3 o^3FL||P#r  
    TSDY   3            -0.20000000     0.53419039    -0.00984195     0.20000000     0.53419039    -0.00984195 \)ip>{WG  
    Change in Focus                :       0.000000                            0.000000 ev9; Ld  
    Tilt X tolerance on surface (degrees) 3 JnfqXbE  
    TSTX   3            -0.20000000     0.42861670    -0.11541563     0.20000000     0.42861670    -0.11541563 8wr8:( Y$  
    Change in Focus                :       0.000000                            0.000000 cAD[3b[Gk  
    Tilt Y tolerance on surface (degrees) 3 aF!Ex  
    TSTY   3            -0.20000000     0.42861670    -0.11541563     0.20000000     0.42861670    -0.11541563 'It?wB W  
    Change in Focus                :       0.000000                            0.000000 et=7}K]l  
    Irregularity of surface 1 in fringes 8z Y)J#  
    TIRR   1            -0.20000000     0.50973587    -0.03429647     0.20000000     0.57333868     0.02930634 n-DaX kK  
    Change in Focus                :       0.000000                            0.000000 nqT>qS[Z  
    Irregularity of surface 2 in fringes &5?G-mn  
    TIRR   2            -0.20000000     0.53400904    -0.01002330     0.20000000     0.55360281     0.00957047 }g~g50ci  
    Change in Focus                :       0.000000                            0.000000 >R!"P[*  
    Irregularity of surface 3 in fringes &VDl/qnaL  
    TIRR   3            -0.20000000     0.58078982     0.03675748     0.20000000     0.49904394    -0.04498840 )zU:  
    Change in Focus                :       0.000000                            0.000000 "e 1wr  
    Index tolerance on surface 1 74+A+SK[  
    TIND   1            -0.00100000     0.52606778    -0.01796456     0.00100000     0.56121811     0.01718578  EIr@g  
    Change in Focus                :       0.000000                            0.000000 6^)rv-L~5y  
    Index tolerance on surface 2 1BJ<m5/1%  
    TIND   2            -0.00100000     0.55639086     0.01235852     0.00100000     0.53126361    -0.01276872 *i^`Dw^~y  
    Change in Focus                :       0.000000                           -0.000000 @}Zd (o  
    |( G2K'Ab  
    Worst offenders: MaO"#{i  
    Type                      Value      Criterion        Change ',7a E@PJ  
    TSTY   2            -0.20000000     0.35349910    -0.19053324 kY"KD22a  
    TSTY   2             0.20000000     0.35349910    -0.19053324 w/W7N   
    TSTX   2            -0.20000000     0.35349910    -0.19053324 LN4qYp6)G  
    TSTX   2             0.20000000     0.35349910    -0.19053324 B{C_hy-fw  
    TSTY   1            -0.20000000     0.42678383    -0.11724851 Ve}[XqdS^p  
    TSTY   1             0.20000000     0.42678383    -0.11724851 `\bT'~P  
    TSTX   1            -0.20000000     0.42678383    -0.11724851 \q "N/$5{f  
    TSTX   1             0.20000000     0.42678383    -0.11724851 ciudRK63M  
    TSTY   3            -0.20000000     0.42861670    -0.11541563 4:7mK/Z  
    TSTY   3             0.20000000     0.42861670    -0.11541563 t6+YXjXK  
    !^e =P%S  
    Estimated Performance Changes based upon Root-Sum-Square method: Ytao"R/  
    Nominal MTF                 :     0.54403234 Bq@zaMv  
    Estimated change            :    -0.36299231 `9Yn0B.  
    Estimated MTF               :     0.18104003 +L0w;wT  
    F30 ]  
    Compensator Statistics: $IVwA  
    Change in back focus: d H? ScXM=  
    Minimum            :        -0.000000 T dk ,&8  
    Maximum            :         0.000000 /)EY2Y'  
    Mean               :        -0.000000 1svi8wh  
    Standard Deviation :         0.000000 ib$nc2BPb  
    {hQ6K)s  
    Monte Carlo Analysis: w\Mnu}<e$  
    Number of trials: 20 }XR : 2  
    _OMpIdY,R*  
    Initial Statistics: Normal Distribution \}5p0.=  
    =wG+Ao  
      Trial       Criterion        Change 6?qDdVR~]  
          1     0.42804416    -0.11598818 paW@\1Q  
    Change in Focus                :      -0.400171 /*$hx@ih  
          2     0.54384387    -0.00018847 oFDz;6  
    Change in Focus                :       1.018470 5|I55CTx  
          3     0.44510003    -0.09893230 A(8n  
    Change in Focus                :      -0.601922 yHeEobvb  
          4     0.18154684    -0.36248550 C3XmK}h  
    Change in Focus                :       0.920681 /6K Il  
          5     0.28665820    -0.25737414 ~6aCfbu%V  
    Change in Focus                :       1.253875 D\1k.tI  
          6     0.21263372    -0.33139862 \( )# e  
    Change in Focus                :      -0.903878 +*}{`L- :  
          7     0.40051424    -0.14351809 /KCPpERk{  
    Change in Focus                :      -1.354815 J~#$J&iKh  
          8     0.48754161    -0.05649072 +9XQ[57  
    Change in Focus                :       0.215922 WG u%7e]  
          9     0.40357468    -0.14045766 kW@,$_cK  
    Change in Focus                :       0.281783 `.%JjsD<  
         10     0.26315315    -0.28087919 _Ov;4nt!  
    Change in Focus                :      -1.048393 nV*y`.+  
         11     0.26120585    -0.28282649 O(z}H}Fv  
    Change in Focus                :       1.017611 \.uc06  
         12     0.24033815    -0.30369419 j(rL  
    Change in Focus                :      -0.109292 i3VW1~.8  
         13     0.37164046    -0.17239188 1L nyWZ  
    Change in Focus                :      -0.692430 |Ic`,>XM  
         14     0.48597489    -0.05805744 Dg HaOAdU  
    Change in Focus                :      -0.662040 p\p\q(S">  
         15     0.21462327    -0.32940907 &?,6~qm[  
    Change in Focus                :       1.611296 FLZWZ;  
         16     0.43378226    -0.11025008 ;CHi\+` 5  
    Change in Focus                :      -0.640081 'heJ"k?  
         17     0.39321881    -0.15081353 ] )DX%$f  
    Change in Focus                :       0.914906 bFS>)  
         18     0.20692530    -0.33710703 N K]B?  
    Change in Focus                :       0.801607 I 1Sa^7  
         19     0.51374068    -0.03029165 kc `V4b%  
    Change in Focus                :       0.947293 (1R?s>3o  
         20     0.38013374    -0.16389860 w|[RDaAb  
    Change in Focus                :       0.667010 o Y}]UB>  
    (ll*OVL  
    Number of traceable Monte Carlo files generated: 20 Lw1EWN6}_&  
    ;`YkMS`=W  
    Nominal     0.54403234 8eBOr9l+j  
    Best        0.54384387    Trial     2 R6-n IY,  
    Worst       0.18154684    Trial     4 U69u'G:  
    Mean        0.35770970 ;Q;[*B=kE  
    Std Dev     0.11156454 -]uUYe c  
    WLa!.v>  
    +!IQj0&'Y3  
    Compensator Statistics: ~[WF_NU1y  
    Change in back focus: cF)/^5Z  
    Minimum            :        -1.354815 A - YBQPE  
    Maximum            :         1.611296 "9EE1];NT  
    Mean               :         0.161872 A>`945|  
    Standard Deviation :         0.869664 !" #9<~Q,p  
    WtulTAfN  
    90% >       0.20977951               / $  :j  
    80% >       0.22748071               CT9   
    50% >       0.38667627               TL$EV>Nr  
    20% >       0.46553746               B(?Yw>Xd[  
    10% >       0.50064115                D_mL,w  
    [D-Q'"'A  
    End of Run. 2aw&YZ&Xo  
    aI(7nJ=R  
    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 =<r8fXWZ  
    i,A#&YDl  
    1OLqL  
    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 RO;Bl:x4  
    D\w h;r  
    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                 }X GEX:1K  
    80% >       0.22748071                 Go,N>HN  
    50% >       0.38667627                 _&K  
    20% >       0.46553746                 P%)gO  
    10% >       0.50064115 `%+ mO88o  
    yC 77c=  
    最后这个数值是MTF值呢，还是MTF的公差？ K{n{KB&_&  
    -a*K$rnB  
    也就是说，这到底是有90%的产品MTF大于0.20977951还是90%的产品的MTF变化量大于0.20977951？？？   4Mk-2 Dx  
    Z_\C*^  
    怎么没人啊，大家讨论讨论吗
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    只看该作者 3楼 发表于: 2011-06-23
    没有人啊？？？
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    只看该作者 4楼 发表于: 2011-06-23
    引用第2楼sansummer于2011-06-22 08:56发表的  :  +H$!a  
    90% >       0.20977951                 \QU^>2 3  
    80% >       0.22748071                 _)]CzBRq\6  
    50% >       0.38667627                 4 Jx"A\5*G  
    20% >       0.46553746                 YJ(*wByM  
    10% >       0.50064115 A)ipFB 6K  
    ....... {mB0rKVm  
    BB|?1"neg  
    >vo=]c w  
    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   "fq{Y~F%`  
    Mode                : Sensitivities r1fGJv1!o  
    Sampling            : 2 %u;~kP|S%  
    Nominal Criterion   : 0.54403234 ,]T2$?|  
    Test Wavelength     : 0.6328 XV^1tX>f{  
    SM@QUAXO  
    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？ |hr]>P1  
    O`vTnrY  
    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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