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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 r!C#PiT}I  
    %V;B{?>9zB  
    d) i64"  
    +#@)C?G,TF  
    然后添加了默认公差分析,基本没变 ?ypX``3#s7  
    GB&^<@  
    WUfPLY_c(  
    pf@H;QS`  
    然后运行分析的结果如下: -qW[.B  
    FbU98n+z  
    Analysis of Tolerances EG; y@\]  
    RASPOc/]   
    File : E:\光学设计资料\zemax练习\f500.ZMX Smc=-M}  
    Title: Z!eW_""wp  
    Date : TUE JUN 21 2011 /$Ca }>  
    YQ _]Jv k  
    Units are Millimeters. I|eYeJ3  
    All changes are computed using linear differences. XhEJF !  
    ,)beK*Iw  
    Paraxial Focus compensation only. }\Ri:&?  
    6-6ha7]s  
    WARNING: Solves should be removed prior to tolerancing. #*|Gp_l+%  
    w;=g$Bn  
    Mnemonics: T-)lnrs^  
    TFRN: Tolerance on curvature in fringes. !=SBeq  
    TTHI: Tolerance on thickness. *74VrAo  
    TSDX: Tolerance on surface decentering in x. ekV|a1)  
    TSDY: Tolerance on surface decentering in y. mYRsM s  
    TSTX: Tolerance on surface tilt in x (degrees). [PP &}.k4"  
    TSTY: Tolerance on surface tilt in y (degrees). @en*JxIM  
    TIRR: Tolerance on irregularity (fringes). 'OjsV$_  
    TIND: Tolerance on Nd index of refraction. !Sj0!\  
    TEDX: Tolerance on element decentering in x. (5\VOCT>4%  
    TEDY: Tolerance on element decentering in y. }Y`D^z~  
    TETX: Tolerance on element tilt in x (degrees). MIx,#]C&  
    TETY: Tolerance on element tilt in y (degrees). P g.j]  
    ~[ZRE @  
    WARNING: RAY AIMING IS OFF. Very loose tolerances may not be computed accurately. .tQeOZW'  
    4mM?RGWv  
    WARNING: Boundary constraints on compensators will be ignored. lFT` WO  
    viXt]0  
    Criterion           : Geometric MTF average S&T at 30.0000 cycles per mm vp2s)W8W  
    Mode                : Sensitivities Uz$.sa  
    Sampling            : 2 )0UXTyw^  
    Nominal Criterion   : 0.54403234 *i,@d&J y]  
    Test Wavelength     : 0.6328 BH3%dh :9  
    EgB$y"fs  
    e,8[fp-7  
    Fields: XY Symmetric Angle in degrees Ef2i#BoZ  
    #      X-Field      Y-Field       Weight    VDX    VDY    VCX    VCY T6^ H%;G  
    1   0.000E+000   0.000E+000   1.000E+000  0.000  0.000  0.000  0.000 !E.CpfaC  
    'J1!P:tJ  
    Sensitivity Analysis: cD JeYduK  
    e?yrx6  
                     |----------------- Minimum ----------------| |----------------- Maximum ----------------| +JlPQ~5  
    Type                      Value      Criterion        Change          Value      Criterion        Change ~`Rb"Zn  
    Fringe tolerance on surface 1 4uy:sCmu  
    TFRN   1            -1.00000000     0.54257256    -0.00145977     1.00000000     0.54548607     0.00145374 D@?Tq,= [  
    Change in Focus                :      -0.000000                            0.000000 , aJC7'(  
    Fringe tolerance on surface 2 zbgH}6b  
    TFRN   2            -1.00000000     0.54177471    -0.00225762     1.00000000     0.54627463     0.00224230 efX iZ  
    Change in Focus                :       0.000000                            0.000000 `&w{-om\  
    Fringe tolerance on surface 3 `x:8m?q05  
    TFRN   3            -1.00000000     0.54779866     0.00376632     1.00000000     0.54022572    -0.00380662 Rn9e#_Az  
    Change in Focus                :      -0.000000                            0.000000 :c}"a(|  
    Thickness tolerance on surface 1 Tg_#z  
    TTHI   1   3        -0.20000000     0.54321462    -0.00081772     0.20000000     0.54484759     0.00081525 155vY  
    Change in Focus                :       0.000000                            0.000000 peD7X:K\s  
    Thickness tolerance on surface 2 7 <<`9,  
    TTHI   2   3        -0.20000000     0.54478712     0.00075478     0.20000000     0.54327558    -0.00075675 A(}D76o_  
    Change in Focus                :       0.000000                           -0.000000 G;he:Bf  
    Decenter X tolerance on surfaces 1 through 3 5=hMTztf!!  
    TEDX   1   3        -0.20000000     0.54401464   -1.7700E-005     0.20000000     0.54401464   -1.7700E-005 Boj#r ,x  
    Change in Focus                :       0.000000                            0.000000 5[0W+W  
    Decenter Y tolerance on surfaces 1 through 3 kA4bv}  
    TEDY   1   3        -0.20000000     0.54401464   -1.7700E-005     0.20000000     0.54401464   -1.7700E-005 @O9wit.  
    Change in Focus                :       0.000000                            0.000000 :D:Y-cG*n<  
    Tilt X tolerance on surfaces 1 through 3 (degrees) YS0^ !7u  
    TETX   1   3        -0.20000000     0.54897548     0.00494314     0.20000000     0.54897548     0.00494314 PUbfQg  
    Change in Focus                :       0.000000                            0.000000 Qy7pM8~h  
    Tilt Y tolerance on surfaces 1 through 3 (degrees) &1Cif$Y4w  
    TETY   1   3        -0.20000000     0.54897548     0.00494314     0.20000000     0.54897548     0.00494314 _X)`S"EsJ  
    Change in Focus                :       0.000000                            0.000000 . ytxe!O  
    Decenter X tolerance on surface 1 T o$D [-  
    TSDX   1            -0.20000000     0.53999563    -0.00403671     0.20000000     0.53999563    -0.00403671 hEMS  
    Change in Focus                :       0.000000                            0.000000 k, >*.Yoh  
    Decenter Y tolerance on surface 1 b"pN;v  
    TSDY   1            -0.20000000     0.53999563    -0.00403671     0.20000000     0.53999563    -0.00403671 6(8zt"E  
    Change in Focus                :       0.000000                            0.000000 ]QSQr *  
    Tilt X tolerance on surface (degrees) 1 9+"ISXS  
    TSTX   1            -0.20000000     0.42678383    -0.11724851     0.20000000     0.42678383    -0.11724851 B+4WnR1%T  
    Change in Focus                :       0.000000                            0.000000 Nz;f| 2h  
    Tilt Y tolerance on surface (degrees) 1 w[]\%`69}Z  
    TSTY   1            -0.20000000     0.42678383    -0.11724851     0.20000000     0.42678383    -0.11724851 S5/p3;O\c  
    Change in Focus                :       0.000000                            0.000000 MHQM'  
    Decenter X tolerance on surface 2 h pKrP  
    TSDX   2            -0.20000000     0.51705427    -0.02697807     0.20000000     0.51705427    -0.02697807 &6&$vF65c  
    Change in Focus                :       0.000000                            0.000000 e !N%   
    Decenter Y tolerance on surface 2 ZKF  #(G  
    TSDY   2            -0.20000000     0.51705427    -0.02697807     0.20000000     0.51705427    -0.02697807 63HtZ=hO7  
    Change in Focus                :       0.000000                            0.000000 BT|n+Y[  
    Tilt X tolerance on surface (degrees) 2 on.m '-s  
    TSTX   2            -0.20000000     0.35349910    -0.19053324     0.20000000     0.35349910    -0.19053324 (Qd@Q,@(s  
    Change in Focus                :       0.000000                            0.000000 W(o#2;{ ln  
    Tilt Y tolerance on surface (degrees) 2 O &}`R5Y;  
    TSTY   2            -0.20000000     0.35349910    -0.19053324     0.20000000     0.35349910    -0.19053324  Q5 =  
    Change in Focus                :       0.000000                            0.000000 +ux170Cd3  
    Decenter X tolerance on surface 3 (sp{.bU  
    TSDX   3            -0.20000000     0.53419039    -0.00984195     0.20000000     0.53419039    -0.00984195 U[G5<&Z^  
    Change in Focus                :       0.000000                            0.000000 q'KXn0IY#  
    Decenter Y tolerance on surface 3 xp%LXx j  
    TSDY   3            -0.20000000     0.53419039    -0.00984195     0.20000000     0.53419039    -0.00984195 jhB+ ]  
    Change in Focus                :       0.000000                            0.000000 icN#8\E  
    Tilt X tolerance on surface (degrees) 3 Cig! 3  
    TSTX   3            -0.20000000     0.42861670    -0.11541563     0.20000000     0.42861670    -0.11541563 H,Yrk(O-  
    Change in Focus                :       0.000000                            0.000000 m+3]RIr&A  
    Tilt Y tolerance on surface (degrees) 3 U.c~l,5%"  
    TSTY   3            -0.20000000     0.42861670    -0.11541563     0.20000000     0.42861670    -0.11541563  U92?e}=]  
    Change in Focus                :       0.000000                            0.000000 C)BVsHT4  
    Irregularity of surface 1 in fringes H+npe'm_Z  
    TIRR   1            -0.20000000     0.50973587    -0.03429647     0.20000000     0.57333868     0.02930634 QRHM#v S  
    Change in Focus                :       0.000000                            0.000000 L8?;A9pc()  
    Irregularity of surface 2 in fringes g?{7DI`  
    TIRR   2            -0.20000000     0.53400904    -0.01002330     0.20000000     0.55360281     0.00957047 kb[+II  
    Change in Focus                :       0.000000                            0.000000 e$N1m:1*  
    Irregularity of surface 3 in fringes l 9bg  
    TIRR   3            -0.20000000     0.58078982     0.03675748     0.20000000     0.49904394    -0.04498840 >K*TgG6!X  
    Change in Focus                :       0.000000                            0.000000 Rf TG 5E)  
    Index tolerance on surface 1 Dpkc9~z  
    TIND   1            -0.00100000     0.52606778    -0.01796456     0.00100000     0.56121811     0.01718578 xM13OoU  
    Change in Focus                :       0.000000                            0.000000 >x8~?)7z  
    Index tolerance on surface 2 V`xE&BI  
    TIND   2            -0.00100000     0.55639086     0.01235852     0.00100000     0.53126361    -0.01276872 9 =D13s(C  
    Change in Focus                :       0.000000                           -0.000000 O5dBI_  
    %h}3}p#4  
    Worst offenders: nmoC(| r  
    Type                      Value      Criterion        Change Hh'o:j(^  
    TSTY   2            -0.20000000     0.35349910    -0.19053324 @!mjjeG+1  
    TSTY   2             0.20000000     0.35349910    -0.19053324 -~_;9[uV  
    TSTX   2            -0.20000000     0.35349910    -0.19053324 T;#:Y  
    TSTX   2             0.20000000     0.35349910    -0.19053324 @T)>akEOt  
    TSTY   1            -0.20000000     0.42678383    -0.11724851 Qk8YR5 K   
    TSTY   1             0.20000000     0.42678383    -0.11724851 Nrzg>WQa  
    TSTX   1            -0.20000000     0.42678383    -0.11724851 }0 =gP?.kE  
    TSTX   1             0.20000000     0.42678383    -0.11724851 G$1gk^G's  
    TSTY   3            -0.20000000     0.42861670    -0.11541563 -z'6.I cO  
    TSTY   3             0.20000000     0.42861670    -0.11541563 `g'z6~c7n  
    3$P GLM  
    Estimated Performance Changes based upon Root-Sum-Square method: 7%yP5c B  
    Nominal MTF                 :     0.54403234 |3=tF"h  
    Estimated change            :    -0.36299231 @pV&{Vp  
    Estimated MTF               :     0.18104003 VV"1IR  
    28O3N;a  
    Compensator Statistics: w"OeS;#e:  
    Change in back focus: *wV`7\@  
    Minimum            :        -0.000000 /,3:<I  
    Maximum            :         0.000000 ?}<Wmy2A  
    Mean               :        -0.000000 rQ&F Gb  
    Standard Deviation :         0.000000 Kbcr-89Gv~  
     &W? hCr  
    Monte Carlo Analysis: '/@i} digf  
    Number of trials: 20 q@}tv =}  
    ;w^{PZBg  
    Initial Statistics: Normal Distribution J#Agk^Y 5  
    T9]:, z  
      Trial       Criterion        Change J(kC  
          1     0.42804416    -0.11598818 /^b=| +Do  
    Change in Focus                :      -0.400171 Q*]y=Za#:  
          2     0.54384387    -0.00018847 Bu#\W  
    Change in Focus                :       1.018470 |1UJKJwX  
          3     0.44510003    -0.09893230 Rs53R$PIR  
    Change in Focus                :      -0.601922 g BV66L  
          4     0.18154684    -0.36248550 }bYk#6KX  
    Change in Focus                :       0.920681 CxJH)H$  
          5     0.28665820    -0.25737414 RaAvPIJa |  
    Change in Focus                :       1.253875 \O+Hmi^  
          6     0.21263372    -0.33139862  6adXE  
    Change in Focus                :      -0.903878 D]hwG0Chd  
          7     0.40051424    -0.14351809 *+>QKR7  
    Change in Focus                :      -1.354815 *Zz hN]1  
          8     0.48754161    -0.05649072 ){"-J&@?  
    Change in Focus                :       0.215922 ~4u[\&Sh  
          9     0.40357468    -0.14045766 @H|3e@5([  
    Change in Focus                :       0.281783 9pq-"?vHY0  
         10     0.26315315    -0.28087919 jmva0K},SE  
    Change in Focus                :      -1.048393 H6i;MQ  
         11     0.26120585    -0.28282649 kT4Oal+4  
    Change in Focus                :       1.017611 ]L9$JTGF`w  
         12     0.24033815    -0.30369419 CYN")J8V  
    Change in Focus                :      -0.109292 Uf<IXx&;  
         13     0.37164046    -0.17239188 H(ds  
    Change in Focus                :      -0.692430 BYXMbx  
         14     0.48597489    -0.05805744 P{o/ /M  
    Change in Focus                :      -0.662040 mY!&*nYn|  
         15     0.21462327    -0.32940907 K)TMr"j\  
    Change in Focus                :       1.611296 IGcYPL\&  
         16     0.43378226    -0.11025008 ZqJyuTPv  
    Change in Focus                :      -0.640081 ^26}8vt  
         17     0.39321881    -0.15081353 (-esUOB.  
    Change in Focus                :       0.914906 qb >mUS  
         18     0.20692530    -0.33710703 nVv=smVOt  
    Change in Focus                :       0.801607 ec"+Il  
         19     0.51374068    -0.03029165 75RQ\_zDu  
    Change in Focus                :       0.947293 992cy2,Fb  
         20     0.38013374    -0.16389860 p^9u8T4l1  
    Change in Focus                :       0.667010 TZ]o6Bb  
    y<*/\]t9L[  
    Number of traceable Monte Carlo files generated: 20 Xjnv8{X  
    Qj(|uGqm3  
    Nominal     0.54403234 46M?Gfd,X  
    Best        0.54384387    Trial     2 d9yfSZ  
    Worst       0.18154684    Trial     4 av4g/7=  
    Mean        0.35770970 1bpjj'2%x  
    Std Dev     0.11156454 B&4NdL/  
    rd!4u14  
    l]KxUkA+  
    Compensator Statistics: Nm,9xq  
    Change in back focus: [5$Y>Tr!  
    Minimum            :        -1.354815 aW7)}"j4  
    Maximum            :         1.611296 9zD^4j7  
    Mean               :         0.161872 6YpP/ K  
    Standard Deviation :         0.869664 TaE&8;H#N  
    ,5/zTLd   
    90% >       0.20977951               o~={M7 m  
    80% >       0.22748071               J#jx)K!  
    50% >       0.38667627               Q:sw*7"F  
    20% >       0.46553746               o+ 0"@B  
    10% >       0.50064115                [{cMEV&  
    qo62!q  
    End of Run. j3)fmlA  
    \1cJ?/$_Of  
    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 R[_UbN 28  
    0ntf%#2{  
    j SXVLyz  
    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 |)IS[:X  
    oJbMUEQQq  
    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                 >^q7:x\  
    80% >       0.22748071                 SWrP0Qjc  
    50% >       0.38667627                 `bx}!;{lx  
    20% >       0.46553746                 z c7P2@  
    10% >       0.50064115 0.}WZAYy~  
    ]E!b&  
    最后这个数值是MTF值呢,还是MTF的公差? 01/yog  
    FyV)Nmc%t  
    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???   Mp`2[S@$  
    Bp>Z?"hTe  
    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???
    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  : _d`)N  
    90% >       0.20977951                 []I _r=  
    80% >       0.22748071                 zlhHSyK  
    50% >       0.38667627                 .WV5Gf)  
    20% >       0.46553746                 5tG\5  
    10% >       0.50064115 b\9MM  
    ....... #vs=yR/tn{  
    (G<fvl!~  
    B65"jy  
    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   IL&;2%  
    Mode                : Sensitivities __OH gp 1  
    Sampling            : 2 W0qn$H  
    Nominal Criterion   : 0.54403234 Hph$Z 1{  
    Test Wavelength     : 0.6328 (BG wBL  
    X7Z=@d(  
    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? I\WBPI  
    l`(pV ;{W  
    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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    恩,多多尝试