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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' F77 .  
    y3vdUauOn  
    #`~C)=-  
    J.3u^~zy  
    然后添加了默认公差分析，基本没变 _PPy44r2  
    [RS|gem`  
    SbcS]H5Sk  
    QER?i;-wb  
    然后运行分析的结果如下： .4S.>~^7  
    2Zm0qJ  
    Analysis of Tolerances ;[(oaK@+n  
    O],T,Z?z  
    File : E:\光学设计资料\zemax练习\f500.ZMX u+dLaVlLJ  
    Title: )z>|4@,  
    Date : TUE JUN 21 2011 =-tw5], L  
    pD(j'[  
    Units are Millimeters. b}\N;D.{  
    All changes are computed using linear differences. -<6\1J  
    zh%#Y_[R  
    Paraxial Focus compensation only. \c,ap49RC  
    S2E8G q9  
    WARNING: Solves should be removed prior to tolerancing. AWcLUe{  
    ]{!U@b  
    Mnemonics: .b_)%jd x  
    TFRN: Tolerance on curvature in fringes. MlcR"gl*  
    TTHI: Tolerance on thickness. ?llXd4  
    TSDX: Tolerance on surface decentering in x. Id*Ce2B  
    TSDY: Tolerance on surface decentering in y. ht|z<XJ  
    TSTX: Tolerance on surface tilt in x (degrees). 57aXQ8u{  
    TSTY: Tolerance on surface tilt in y (degrees). Mc@e0  
    TIRR: Tolerance on irregularity (fringes). oL-]3TY~  
    TIND: Tolerance on Nd index of refraction. ,y1PbA0m  
    TEDX: Tolerance on element decentering in x. }I2wjO  
    TEDY: Tolerance on element decentering in y. w}L]X1#sF  
    TETX: Tolerance on element tilt in x (degrees). >u>5{4  
    TETY: Tolerance on element tilt in y (degrees). j 7fL7:,T  
    ; a/X<  
    WARNING: RAY AIMING IS OFF. Very loose tolerances may not be computed accurately. w2Us!<x  
    `CBZhI%%  
    WARNING: Boundary constraints on compensators will be ignored. dMPc:tJT  
    Q_1:tW &  
    Criterion           : Geometric MTF average S&T at 30.0000 cycles per mm :8I9\eet3  
    Mode                : Sensitivities SII;n2[Ze  
    Sampling            : 2 v>:Ur}u!D  
    Nominal Criterion   : 0.54403234 d^@dzNv  
    Test Wavelength     : 0.6328 j_/>A=OD  
    Ac96 [  
    4hO!\5-w:  
    Fields: XY Symmetric Angle in degrees 7jxslI&F  
    #      X-Field      Y-Field       Weight    VDX    VDY    VCX    VCY $:BKzHmg  
    1   0.000E+000   0.000E+000   1.000E+000  0.000  0.000  0.000  0.000 x`U^OLV  
    H  >j  
    Sensitivity Analysis: QFE:tBHe  
    =FlDb 5t{  
                     |----------------- Minimum ----------------| |----------------- Maximum ----------------| {mm)ay|M  
    Type                      Value      Criterion        Change          Value      Criterion        Change ?OId\'q  
    Fringe tolerance on surface 1 j1^I+j)  
    TFRN   1            -1.00000000     0.54257256    -0.00145977     1.00000000     0.54548607     0.00145374 iyA'#bE-  
    Change in Focus                :      -0.000000                            0.000000 vV6<^ W:9F  
    Fringe tolerance on surface 2 j@=%_^:i  
    TFRN   2            -1.00000000     0.54177471    -0.00225762     1.00000000     0.54627463     0.00224230 XQ#;Zs/l  
    Change in Focus                :       0.000000                            0.000000 :C7_Jp*Qv  
    Fringe tolerance on surface 3 grS:j+_M2m  
    TFRN   3            -1.00000000     0.54779866     0.00376632     1.00000000     0.54022572    -0.00380662 Mh~q//  
    Change in Focus                :      -0.000000                            0.000000 81](T<  
    Thickness tolerance on surface 1 ^({})T0wu  
    TTHI   1   3        -0.20000000     0.54321462    -0.00081772     0.20000000     0.54484759     0.00081525 Z"Zmo>cV4  
    Change in Focus                :       0.000000                            0.000000 .O74V~T  
    Thickness tolerance on surface 2 E08 klC0  
    TTHI   2   3        -0.20000000     0.54478712     0.00075478     0.20000000     0.54327558    -0.00075675 G(Lzf(  
    Change in Focus                :       0.000000                           -0.000000 gRrL[z  
    Decenter X tolerance on surfaces 1 through 3 l-fi%Z7C  
    TEDX   1   3        -0.20000000     0.54401464   -1.7700E-005     0.20000000     0.54401464   -1.7700E-005 ]}*R|1  
    Change in Focus                :       0.000000                            0.000000 %;cddLQ\xY  
    Decenter Y tolerance on surfaces 1 through 3 +GG9^:<yr  
    TEDY   1   3        -0.20000000     0.54401464   -1.7700E-005     0.20000000     0.54401464   -1.7700E-005 jDKO} bQ  
    Change in Focus                :       0.000000                            0.000000 yGI;ye'U  
    Tilt X tolerance on surfaces 1 through 3 (degrees) qJ;jfh!  
    TETX   1   3        -0.20000000     0.54897548     0.00494314     0.20000000     0.54897548     0.00494314 a<@1 -j<  
    Change in Focus                :       0.000000                            0.000000 7[w,:9& }  
    Tilt Y tolerance on surfaces 1 through 3 (degrees) ?b*s. ^  
    TETY   1   3        -0.20000000     0.54897548     0.00494314     0.20000000     0.54897548     0.00494314 B,<da1(a  
    Change in Focus                :       0.000000                            0.000000 <_h~w}  
    Decenter X tolerance on surface 1 F{Z~ R  
    TSDX   1            -0.20000000     0.53999563    -0.00403671     0.20000000     0.53999563    -0.00403671 0QFS  
    Change in Focus                :       0.000000                            0.000000 ?QsQnQ  
    Decenter Y tolerance on surface 1 QU4h8}$  
    TSDY   1            -0.20000000     0.53999563    -0.00403671     0.20000000     0.53999563    -0.00403671 7_%"BVb"  
    Change in Focus                :       0.000000                            0.000000 Fa?~0H/DL  
    Tilt X tolerance on surface (degrees) 1 :S.9eFfa  
    TSTX   1            -0.20000000     0.42678383    -0.11724851     0.20000000     0.42678383    -0.11724851 a,xycX:U  
    Change in Focus                :       0.000000                            0.000000 PjZvQ\Z  
    Tilt Y tolerance on surface (degrees) 1 6tB+JF  
    TSTY   1            -0.20000000     0.42678383    -0.11724851     0.20000000     0.42678383    -0.11724851 S\4tzz @  
    Change in Focus                :       0.000000                            0.000000 Qr1"Tk7s  
    Decenter X tolerance on surface 2 GU4'&#  
    TSDX   2            -0.20000000     0.51705427    -0.02697807     0.20000000     0.51705427    -0.02697807 Z?}dq-Vh&  
    Change in Focus                :       0.000000                            0.000000 H+1-]'g`  
    Decenter Y tolerance on surface 2 OSlvwH%(EE  
    TSDY   2            -0.20000000     0.51705427    -0.02697807     0.20000000     0.51705427    -0.02697807 <L`KzaA  
    Change in Focus                :       0.000000                            0.000000 `q?8A3A  
    Tilt X tolerance on surface (degrees) 2 >v:y?A,  
    TSTX   2            -0.20000000     0.35349910    -0.19053324     0.20000000     0.35349910    -0.19053324 _XG/Pp)  
    Change in Focus                :       0.000000                            0.000000 _  <WJ7  
    Tilt Y tolerance on surface (degrees) 2 &{ay=Mj  
    TSTY   2            -0.20000000     0.35349910    -0.19053324     0.20000000     0.35349910    -0.19053324 !HrKXy 0{  
    Change in Focus                :       0.000000                            0.000000 M|6A0m#Q  
    Decenter X tolerance on surface 3 @Gk ILFN  
    TSDX   3            -0.20000000     0.53419039    -0.00984195     0.20000000     0.53419039    -0.00984195 B$- R-S6  
    Change in Focus                :       0.000000                            0.000000 G.rrv  
    Decenter Y tolerance on surface 3 , 0imiv  
    TSDY   3            -0.20000000     0.53419039    -0.00984195     0.20000000     0.53419039    -0.00984195 cimp/n"  
    Change in Focus                :       0.000000                            0.000000 \!>3SKs(e  
    Tilt X tolerance on surface (degrees) 3 Q(lo{AFc  
    TSTX   3            -0.20000000     0.42861670    -0.11541563     0.20000000     0.42861670    -0.11541563 YwteZSbp6M  
    Change in Focus                :       0.000000                            0.000000 (mgS"zPS  
    Tilt Y tolerance on surface (degrees) 3 >Nvjl~o5  
    TSTY   3            -0.20000000     0.42861670    -0.11541563     0.20000000     0.42861670    -0.11541563 J]v%q,"  
    Change in Focus                :       0.000000                            0.000000 NYE` Kin-  
    Irregularity of surface 1 in fringes s8wmCzB~  
    TIRR   1            -0.20000000     0.50973587    -0.03429647     0.20000000     0.57333868     0.02930634 Q?e*4ba  
    Change in Focus                :       0.000000                            0.000000 6`O.!|)  
    Irregularity of surface 2 in fringes {kp"nl$<  
    TIRR   2            -0.20000000     0.53400904    -0.01002330     0.20000000     0.55360281     0.00957047 W"zab  
    Change in Focus                :       0.000000                            0.000000 : e]a$  
    Irregularity of surface 3 in fringes H(bs$C4F  
    TIRR   3            -0.20000000     0.58078982     0.03675748     0.20000000     0.49904394    -0.04498840 b@rVo;  
    Change in Focus                :       0.000000                            0.000000 M\sN@+  
    Index tolerance on surface 1 #OIcLEn%  
    TIND   1            -0.00100000     0.52606778    -0.01796456     0.00100000     0.56121811     0.01718578 G;&-\0>W  
    Change in Focus                :       0.000000                            0.000000 t0o`-d(  
    Index tolerance on surface 2 a d.3A{  
    TIND   2            -0.00100000     0.55639086     0.01235852     0.00100000     0.53126361    -0.01276872 >*]Hq.&8  
    Change in Focus                :       0.000000                           -0.000000 @{YS}&Q/  
    |kw)KEi}H  
    Worst offenders: 3|WWo1  
    Type                      Value      Criterion        Change e}Cif2#d~  
    TSTY   2            -0.20000000     0.35349910    -0.19053324 #N#'5w-G  
    TSTY   2             0.20000000     0.35349910    -0.19053324 eCN })An  
    TSTX   2            -0.20000000     0.35349910    -0.19053324 _&N2'hG=sn  
    TSTX   2             0.20000000     0.35349910    -0.19053324 \]&#%6|V  
    TSTY   1            -0.20000000     0.42678383    -0.11724851 #.it]Nv{  
    TSTY   1             0.20000000     0.42678383    -0.11724851 IOb*GTb  
    TSTX   1            -0.20000000     0.42678383    -0.11724851 }R1< 0~g  
    TSTX   1             0.20000000     0.42678383    -0.11724851 ERpnuMb  
    TSTY   3            -0.20000000     0.42861670    -0.11541563 3^R&:|,  
    TSTY   3             0.20000000     0.42861670    -0.11541563 p<zSJLN  
    Qy.w=80kf  
    Estimated Performance Changes based upon Root-Sum-Square method: *+-}P|S:  
    Nominal MTF                 :     0.54403234 z54EG:x.7^  
    Estimated change            :    -0.36299231 $]{k+Jf  
    Estimated MTF               :     0.18104003 ~KW,kyXBnD  
    fIj|4a+  
    Compensator Statistics: "$N#p5  
    Change in back focus: Fz1_w$^  
    Minimum            :        -0.000000 p89wNSMl[  
    Maximum            :         0.000000 n;(\5{a  
    Mean               :        -0.000000 wT `a3Ymm  
    Standard Deviation :         0.000000 ~V&aUDO>/  
    l% ?T2Fm3>  
    Monte Carlo Analysis: OlAs'TE^  
    Number of trials: 20 ,=tD8@a<  
    Yj)#k)x  
    Initial Statistics: Normal Distribution ? i( %  
    l7W 6qNB  
      Trial       Criterion        Change 7bk%mQk  
          1     0.42804416    -0.11598818 0}$Hi  
    Change in Focus                :      -0.400171 ? %`@ub$  
          2     0.54384387    -0.00018847 )Z(TCJ~~!  
    Change in Focus                :       1.018470 %K\?E98M  
          3     0.44510003    -0.09893230 RnhL< Ywu  
    Change in Focus                :      -0.601922 ANJ$'3tg  
          4     0.18154684    -0.36248550 x*?x=^I{  
    Change in Focus                :       0.920681 Pm lx8@D  
          5     0.28665820    -0.25737414 MKy[hT:  
    Change in Focus                :       1.253875 [* @5\NWR}  
          6     0.21263372    -0.33139862 p /#$io  
    Change in Focus                :      -0.903878 11<Qxu$rL  
          7     0.40051424    -0.14351809 {.QEc0-  
    Change in Focus                :      -1.354815 T2SP W@#Z3  
          8     0.48754161    -0.05649072 c8L~S/t  
    Change in Focus                :       0.215922 r.#t63Rb  
          9     0.40357468    -0.14045766 {) Q@c)'  
    Change in Focus                :       0.281783 3H|_mX  
         10     0.26315315    -0.28087919 89\n;5'f4  
    Change in Focus                :      -1.048393 &K/ya7  
         11     0.26120585    -0.28282649 qxFB%KqU  
    Change in Focus                :       1.017611 GG@ md_  
         12     0.24033815    -0.30369419 '[ C.|)"  
    Change in Focus                :      -0.109292 UVw~8o9s  
         13     0.37164046    -0.17239188 6 G3\=)  
    Change in Focus                :      -0.692430 LUC4=kk4   
         14     0.48597489    -0.05805744 T9]HGB{  
    Change in Focus                :      -0.662040 KnsT\>[K  
         15     0.21462327    -0.32940907 %,D<O,N  
    Change in Focus                :       1.611296 0JlZs]  
         16     0.43378226    -0.11025008 J.ck~;3  
    Change in Focus                :      -0.640081 GlbySD@  
         17     0.39321881    -0.15081353 Q\cjPc0y  
    Change in Focus                :       0.914906 JMH8MH*  
         18     0.20692530    -0.33710703 EmODBTu+  
    Change in Focus                :       0.801607 A8pIs  
         19     0.51374068    -0.03029165  ))&;}2{  
    Change in Focus                :       0.947293 Hm$=h>rY9[  
         20     0.38013374    -0.16389860 A j2OkD  
    Change in Focus                :       0.667010 Xlb0/T<g!  
    xZ4~Oo@@_'  
    Number of traceable Monte Carlo files generated: 20 &_"]5/"(  
    >B2:kY F  
    Nominal     0.54403234 yi l[gPy4B  
    Best        0.54384387    Trial     2 h\nI!{A0  
    Worst       0.18154684    Trial     4 }; f#^gz'  
    Mean        0.35770970 VUhbD  
    Std Dev     0.11156454 wi4=OU1L)a  
    GDD '[;  
    sFQ^2PwbS  
    Compensator Statistics: Sh?4r i@:  
    Change in back focus: <L`"!~Q  
    Minimum            :        -1.354815 i K12 pw  
    Maximum            :         1.611296 df n9!h  
    Mean               :         0.161872 R,|d`)T  
    Standard Deviation :         0.869664 ,4ei2`wV  
    Eh|]i;G%  
    90% >       0.20977951               <o+<H  
    80% >       0.22748071               GKoK7qH\J  
    50% >       0.38667627               w9o^s5n  
    20% >       0.46553746               " t7M3i_  
    10% >       0.50064115                {W]=~*w  
    'A:x/iv}^  
    End of Run. z}{afEb  
    M-;4   
    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 'k4E4OB  
    #/I[Jqf  
    <<i3r|}  
    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 }S3qBQTYL  
    ]ut5S>,"  
    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                 STglw-TC\  
    80% >       0.22748071                 HmZ{L +"  
    50% >       0.38667627                 EZYBeqv  
    20% >       0.46553746                 Q6XRsFc  
    10% >       0.50064115 bcAvM;  
    !xwG% {_  
    最后这个数值是MTF值呢，还是MTF的公差？ kFQ8 y~>y}  
    UThB7(O,  
    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？？？   JKX_q&bUw  
    /[9t`  
    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  : 5[{*{^F4  
    90% >       0.20977951                 cE iu)2*e  
    80% >       0.22748071                 Uu7dSU  
    50% >       0.38667627                 __@zTSVb  
    20% >       0.46553746                 =H8 xSJLh  
    10% >       0.50064115 +Ug/rtK4   
    ....... @=5qT]%U3J  
    Ro=AADv@  
    ~dHM4lGY  
    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    qW_u  
    Mode                : Sensitivities 3E^M?N2oc  
    Sampling            : 2 HftxS  
    Nominal Criterion   : 0.54403234 $[@0^IJq=K  
    Test Wavelength     : 0.6328 I1U7.CT  
    qP*}.Sqk7  
    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
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    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？ }i!pL(8;  
    MVv1.6c7Y  
    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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