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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 @}N;C ..Y$  
    jdDcmR  
    t#J #DyY5  
    Y)4D$9:  
    然后添加了默认公差分析，基本没变 <Gudx>I  
    HaamLu  
    yYTiAvN  
    u RNc9  
    然后运行分析的结果如下： k@R)_,2HH  
    W,n0'";')  
    Analysis of Tolerances My'6 yQL  
    ?3i-wpzMp  
    File : E:\光学设计资料\zemax练习\f500.ZMX hAZ"M:f  
    Title: ]pA}h. R#-  
    Date : TUE JUN 21 2011 k4-C*Gx$h  
    {=d\t<p*n  
    Units are Millimeters. xF{<-b  
    All changes are computed using linear differences. xH8nn3U  
    : XZ  
    Paraxial Focus compensation only. m; LeaD}0  
    Icf@uQ6  
    WARNING: Solves should be removed prior to tolerancing. G#0 4h{  
    Xl%&hM  
    Mnemonics: tL4xHa6v]  
    TFRN: Tolerance on curvature in fringes. WYE[H9x1?  
    TTHI: Tolerance on thickness. yz2NB?)  
    TSDX: Tolerance on surface decentering in x. dDk<J;~jGJ  
    TSDY: Tolerance on surface decentering in y. !'C^qrh  
    TSTX: Tolerance on surface tilt in x (degrees). $NWI_F4  
    TSTY: Tolerance on surface tilt in y (degrees). NC2PW+(  
    TIRR: Tolerance on irregularity (fringes). |v{ a5|<E  
    TIND: Tolerance on Nd index of refraction. C`x>)wm:  
    TEDX: Tolerance on element decentering in x. [H)p#x  
    TEDY: Tolerance on element decentering in y. 18!0H l>  
    TETX: Tolerance on element tilt in x (degrees). %P9Zx!i>  
    TETY: Tolerance on element tilt in y (degrees). B)"WG7W E  
    |^@TA=_  
    WARNING: RAY AIMING IS OFF. Very loose tolerances may not be computed accurately. W~QZ(:IK  
    @*l}2W  
    WARNING: Boundary constraints on compensators will be ignored. U07n7`2w  
    ]?Ru~N}  
    Criterion           : Geometric MTF average S&T at 30.0000 cycles per mm ,[^P  
    Mode                : Sensitivities 1}!f.cWV(  
    Sampling            : 2 ) f'cy@b   
    Nominal Criterion   : 0.54403234 _Oq (&I  
    Test Wavelength     : 0.6328 s\Cl3  
    ~GS`@IU}  
    VxfFk4  
    Fields: XY Symmetric Angle in degrees ?(U> )SvF  
    #      X-Field      Y-Field       Weight    VDX    VDY    VCX    VCY @v2kAOw[  
    1   0.000E+000   0.000E+000   1.000E+000  0.000  0.000  0.000  0.000 eGLLh_V"  
    J(-#(kMyf  
    Sensitivity Analysis: G(4:yK0  
    Qo{^jDe,c*  
                     |----------------- Minimum ----------------| |----------------- Maximum ----------------| B69NL  
    Type                      Value      Criterion        Change          Value      Criterion        Change 8F4#E U  
    Fringe tolerance on surface 1 \"PlM!0du  
    TFRN   1            -1.00000000     0.54257256    -0.00145977     1.00000000     0.54548607     0.00145374 DjL(-7'p  
    Change in Focus                :      -0.000000                            0.000000 K#";!  
    Fringe tolerance on surface 2 Ar=pzQ<Z{  
    TFRN   2            -1.00000000     0.54177471    -0.00225762     1.00000000     0.54627463     0.00224230  ;nv4lxm  
    Change in Focus                :       0.000000                            0.000000 |g 4!Yd  
    Fringe tolerance on surface 3 >1mCjP  
    TFRN   3            -1.00000000     0.54779866     0.00376632     1.00000000     0.54022572    -0.00380662 P67r+P,  
    Change in Focus                :      -0.000000                            0.000000 })bTQj7  
    Thickness tolerance on surface 1 k2*^W&Z  
    TTHI   1   3        -0.20000000     0.54321462    -0.00081772     0.20000000     0.54484759     0.00081525 ?^IM2}(p  
    Change in Focus                :       0.000000                            0.000000 c6dL S  
    Thickness tolerance on surface 2 |2c'0Ibu  
    TTHI   2   3        -0.20000000     0.54478712     0.00075478     0.20000000     0.54327558    -0.00075675 .Fh5:W N  
    Change in Focus                :       0.000000                           -0.000000 C `knFGb  
    Decenter X tolerance on surfaces 1 through 3 u8N+ht@  
    TEDX   1   3        -0.20000000     0.54401464   -1.7700E-005     0.20000000     0.54401464   -1.7700E-005 }(TZ}* d  
    Change in Focus                :       0.000000                            0.000000 FK={ %  
    Decenter Y tolerance on surfaces 1 through 3 kS?!"zk>  
    TEDY   1   3        -0.20000000     0.54401464   -1.7700E-005     0.20000000     0.54401464   -1.7700E-005 \kWceu}H,  
    Change in Focus                :       0.000000                            0.000000 lcIX l&  
    Tilt X tolerance on surfaces 1 through 3 (degrees) Fz)z&WT  
    TETX   1   3        -0.20000000     0.54897548     0.00494314     0.20000000     0.54897548     0.00494314 UwdcU^xt9  
    Change in Focus                :       0.000000                            0.000000 uu=e~K  
    Tilt Y tolerance on surfaces 1 through 3 (degrees) %qfEFhRC  
    TETY   1   3        -0.20000000     0.54897548     0.00494314     0.20000000     0.54897548     0.00494314 |n~,$  
    Change in Focus                :       0.000000                            0.000000 G*Z4~-E4*  
    Decenter X tolerance on surface 1 {n%F^ky+7  
    TSDX   1            -0.20000000     0.53999563    -0.00403671     0.20000000     0.53999563    -0.00403671 ]rHdG^0uss  
    Change in Focus                :       0.000000                            0.000000 jr@<-.  
    Decenter Y tolerance on surface 1 pU`Q[HOs  
    TSDY   1            -0.20000000     0.53999563    -0.00403671     0.20000000     0.53999563    -0.00403671 )+mbR_@,O6  
    Change in Focus                :       0.000000                            0.000000 UTmX"Li  
    Tilt X tolerance on surface (degrees) 1 +l&ZN\@0X  
    TSTX   1            -0.20000000     0.42678383    -0.11724851     0.20000000     0.42678383    -0.11724851 o $p*C  
    Change in Focus                :       0.000000                            0.000000 "o}3i!2Qr  
    Tilt Y tolerance on surface (degrees) 1 (D{9~^EO>a  
    TSTY   1            -0.20000000     0.42678383    -0.11724851     0.20000000     0.42678383    -0.11724851 YJXh|@LT  
    Change in Focus                :       0.000000                            0.000000 `Nu3s<O7CF  
    Decenter X tolerance on surface 2 ,uE WnZ"4  
    TSDX   2            -0.20000000     0.51705427    -0.02697807     0.20000000     0.51705427    -0.02697807 }3^t,>I=,6  
    Change in Focus                :       0.000000                            0.000000 aLuxCobV  
    Decenter Y tolerance on surface 2 Cq/*/jBM  
    TSDY   2            -0.20000000     0.51705427    -0.02697807     0.20000000     0.51705427    -0.02697807 i~.L{K  
    Change in Focus                :       0.000000                            0.000000 J0lTp /  
    Tilt X tolerance on surface (degrees) 2 0sk*A0HX-  
    TSTX   2            -0.20000000     0.35349910    -0.19053324     0.20000000     0.35349910    -0.19053324 PS!f&IY}[.  
    Change in Focus                :       0.000000                            0.000000 !lL21C6g+  
    Tilt Y tolerance on surface (degrees) 2 ],&WA?>G  
    TSTY   2            -0.20000000     0.35349910    -0.19053324     0.20000000     0.35349910    -0.19053324 D`r:`  
    Change in Focus                :       0.000000                            0.000000 &kRkOjuk  
    Decenter X tolerance on surface 3 +:wOzTUN  
    TSDX   3            -0.20000000     0.53419039    -0.00984195     0.20000000     0.53419039    -0.00984195 j$A~3O<e"  
    Change in Focus                :       0.000000                            0.000000 AXz'=T}{  
    Decenter Y tolerance on surface 3 t#}/VnSQ  
    TSDY   3            -0.20000000     0.53419039    -0.00984195     0.20000000     0.53419039    -0.00984195 SG;]Vr  
    Change in Focus                :       0.000000                            0.000000 (PE"_80Z  
    Tilt X tolerance on surface (degrees) 3 , S}[48$  
    TSTX   3            -0.20000000     0.42861670    -0.11541563     0.20000000     0.42861670    -0.11541563 p@NE^aMn  
    Change in Focus                :       0.000000                            0.000000 nXk<DlTws  
    Tilt Y tolerance on surface (degrees) 3 |z Gwt Z  
    TSTY   3            -0.20000000     0.42861670    -0.11541563     0.20000000     0.42861670    -0.11541563 Nx;U]O6A  
    Change in Focus                :       0.000000                            0.000000 xhj A!\DS  
    Irregularity of surface 1 in fringes 6#KRI%adw`  
    TIRR   1            -0.20000000     0.50973587    -0.03429647     0.20000000     0.57333868     0.02930634 -GDX#A-J  
    Change in Focus                :       0.000000                            0.000000 qA#!3<  
    Irregularity of surface 2 in fringes y7ijT='8  
    TIRR   2            -0.20000000     0.53400904    -0.01002330     0.20000000     0.55360281     0.00957047 mn?< Zz  
    Change in Focus                :       0.000000                            0.000000 J/M1#sE  
    Irregularity of surface 3 in fringes a@lvn/b2  
    TIRR   3            -0.20000000     0.58078982     0.03675748     0.20000000     0.49904394    -0.04498840 B@=+Fg DD  
    Change in Focus                :       0.000000                            0.000000 $2 ~RZpS  
    Index tolerance on surface 1 d9sl(;r  
    TIND   1            -0.00100000     0.52606778    -0.01796456     0.00100000     0.56121811     0.01718578 UP 75}h9  
    Change in Focus                :       0.000000                            0.000000 ,c YU  
    Index tolerance on surface 2 = %\;7  
    TIND   2            -0.00100000     0.55639086     0.01235852     0.00100000     0.53126361    -0.01276872 6*/0 yGij  
    Change in Focus                :       0.000000                           -0.000000 [&j!g  
    |u<qbl  
    Worst offenders: j$n[; \]n  
    Type                      Value      Criterion        Change FG38)/  
    TSTY   2            -0.20000000     0.35349910    -0.19053324 TfDx> F$  
    TSTY   2             0.20000000     0.35349910    -0.19053324 pZuYmMP  
    TSTX   2            -0.20000000     0.35349910    -0.19053324 o2@8w[r  
    TSTX   2             0.20000000     0.35349910    -0.19053324 |/Am\tk#13  
    TSTY   1            -0.20000000     0.42678383    -0.11724851 |Xlc2?e  
    TSTY   1             0.20000000     0.42678383    -0.11724851 Gyk>5Q}}  
    TSTX   1            -0.20000000     0.42678383    -0.11724851 b-@6w(j  
    TSTX   1             0.20000000     0.42678383    -0.11724851 lnEc5J@c>i  
    TSTY   3            -0.20000000     0.42861670    -0.11541563 8h78Zb&[  
    TSTY   3             0.20000000     0.42861670    -0.11541563 W0K&mBu  
    "/[-U;ck  
    Estimated Performance Changes based upon Root-Sum-Square method: a9(1 6k  
    Nominal MTF                 :     0.54403234 8tK8|t5+  
    Estimated change            :    -0.36299231 PBTGN;y  
    Estimated MTF               :     0.18104003 nG1 mx/w  
    #^" \WG7{  
    Compensator Statistics: l=`)yc.  
    Change in back focus: g(7htWr4  
    Minimum            :        -0.000000 5- 0  
    Maximum            :         0.000000 #%il+3J  
    Mean               :        -0.000000 =4/LixsV|  
    Standard Deviation :         0.000000 0e^j:~*  
    F=EAD3  
    Monte Carlo Analysis: B)Hs>Mh|W  
    Number of trials: 20 cmmH)6c>  
    403%~  
    Initial Statistics: Normal Distribution ZsirX~W<  
    |qE"60&"}  
      Trial       Criterion        Change KM*sLC#  
          1     0.42804416    -0.11598818 U#gHc:$  
    Change in Focus                :      -0.400171 _Z~wpO}/  
          2     0.54384387    -0.00018847 &kB[jz_[A  
    Change in Focus                :       1.018470 T?I&n[Y|  
          3     0.44510003    -0.09893230 !:,d^L!bh  
    Change in Focus                :      -0.601922 2^Tj7@  
          4     0.18154684    -0.36248550 {:$0j|zL1  
    Change in Focus                :       0.920681 IpXg2QbN  
          5     0.28665820    -0.25737414 Ua#*kTF  
    Change in Focus                :       1.253875 HWxk>F0  
          6     0.21263372    -0.33139862 t48(,  
    Change in Focus                :      -0.903878 1 M7=*w,  
          7     0.40051424    -0.14351809 ;_R;P;<  
    Change in Focus                :      -1.354815 KFor~A# D  
          8     0.48754161    -0.05649072 iOm~  
    Change in Focus                :       0.215922 [R)?93  
          9     0.40357468    -0.14045766 ;'{:}K=h  
    Change in Focus                :       0.281783 8c\mm 0n  
         10     0.26315315    -0.28087919 R|% 3JE0  
    Change in Focus                :      -1.048393 $g$~TuA w  
         11     0.26120585    -0.28282649 4f ~CG r  
    Change in Focus                :       1.017611 Jvw~b\  
         12     0.24033815    -0.30369419 Xw!eB?A  
    Change in Focus                :      -0.109292 m=k(6  
         13     0.37164046    -0.17239188 W1f]A#t<  
    Change in Focus                :      -0.692430 Unc;@=c  
         14     0.48597489    -0.05805744 o^wj_#ai$  
    Change in Focus                :      -0.662040 1b+ B  
         15     0.21462327    -0.32940907 x2ln$dSy7  
    Change in Focus                :       1.611296 vQ^a7  
         16     0.43378226    -0.11025008 <1.].A@b*  
    Change in Focus                :      -0.640081 |tP1,[w">  
         17     0.39321881    -0.15081353 )zlksF  
    Change in Focus                :       0.914906 +?zyFb]Km  
         18     0.20692530    -0.33710703 J xi>1  
    Change in Focus                :       0.801607 eXx6b~D  
         19     0.51374068    -0.03029165 BhJqMK>'S  
    Change in Focus                :       0.947293  N c F  
         20     0.38013374    -0.16389860 E,JDO d}  
    Change in Focus                :       0.667010 ?|Fu^eR%X  
    zh2$U dZ|M  
    Number of traceable Monte Carlo files generated: 20 B9KY$^J  
    W}EI gVHs  
    Nominal     0.54403234 2w)0>Y(_  
    Best        0.54384387    Trial     2 "\Jq2vM  
    Worst       0.18154684    Trial     4 .!RBh LH_g  
    Mean        0.35770970 wxB?}   
    Std Dev     0.11156454 E&}r"rbI  
    ;Jr6  
    z11;r]VI  
    Compensator Statistics: Kg=TPNf"$  
    Change in back focus: hi"[R@UG  
    Minimum            :        -1.354815 kEf}yTy  
    Maximum            :         1.611296 X ~%I(?OX  
    Mean               :         0.161872 m>k j@^SQ  
    Standard Deviation :         0.869664 IhwJYPLF  
    E D*=8 s2  
    90% >       0.20977951               N{46DS  
    80% >       0.22748071               ZZ A!Y9ia2  
    50% >       0.38667627               t }7hD  
    20% >       0.46553746               ^LaI{UDw%h  
    10% >       0.50064115                'Sppm;?  
    I: U/%cr,  
    End of Run. HAEgR  
    #`RY KQwB  
    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 8jd<|nYnfc  
    8 Mp2MZ*p  
    ,w; ~R4x  
    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 iN8?~T}w  
    +"Ih'bb`j  
    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                 WGN[`D"  
    80% >       0.22748071                 96]lI3 c  
    50% >       0.38667627                 _DMj )enH"  
    20% >       0.46553746                 H1| -f]!  
    10% >       0.50064115 L$zT`1Hy  
    g-pDk*|I,Q  
    最后这个数值是MTF值呢，还是MTF的公差？ ]/p0j$Tq$  
    '[-gK n  
    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？？？   pWSYbN+d  
    ItDe_|!L  
    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  : [+{ ot   
    90% >       0.20977951                 /,Ln)?eD  
    80% >       0.22748071                 /nb(F h|{T  
    50% >       0.38667627                 XZd !c Ff  
    20% >       0.46553746                 x18ei@c  
    10% >       0.50064115 T]Tz<w W(  
    ....... . Nog.  
    %|SbZ)gcQ  
    g/`i:=  
    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   \VtCkb  
    Mode                : Sensitivities JFYeOmR+l  
    Sampling            : 2 ~p'/Z@Atu  
    Nominal Criterion   : 0.54403234 c0Q`S"o+  
    Test Wavelength     : 0.6328 ucoBeNsHx  
    ik&loM_  
    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？ 9oc[}k-M  
    ld9 zOq  
    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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