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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 X4"[,:Tw  
    `?T8NK  
    |D8c=c%  
    6|1#Prj  
    然后添加了默认公差分析，基本没变 ^{g+HFTA@  
    Z3iX^  
    aIN?|Ch  
    =gSACDTc  
    然后运行分析的结果如下： A^F0}MYT  
    dW#l3_'3T  
    Analysis of Tolerances ET3+07  
    `UkPXCC\1  
    File : E:\光学设计资料\zemax练习\f500.ZMX r\|"j8  
    Title: `=8G?3  
    Date : TUE JUN 21 2011 fXkemB^)_  
    %'dsb7n  
    Units are Millimeters. =}W)%Hldr.  
    All changes are computed using linear differences. |U="B4  
    o4&#,m+ :  
    Paraxial Focus compensation only. 2K2jko9'a  
    (' i_Xe  
    WARNING: Solves should be removed prior to tolerancing. zx5t gZd,N  
    r}t%DH  
    Mnemonics: hhOrO<(  
    TFRN: Tolerance on curvature in fringes. 3. g-V  
    TTHI: Tolerance on thickness. ?^: xNRE$j  
    TSDX: Tolerance on surface decentering in x. glWa?#1  
    TSDY: Tolerance on surface decentering in y. GZ"J6/0-|  
    TSTX: Tolerance on surface tilt in x (degrees). N,`<:'  
    TSTY: Tolerance on surface tilt in y (degrees). >@^j9{\  
    TIRR: Tolerance on irregularity (fringes). ~Q 1%DV.  
    TIND: Tolerance on Nd index of refraction. 65pC#$F<x  
    TEDX: Tolerance on element decentering in x. _NM=9cWd  
    TEDY: Tolerance on element decentering in y. f@IL2DL}\  
    TETX: Tolerance on element tilt in x (degrees). D5 ^WiQ<  
    TETY: Tolerance on element tilt in y (degrees). I4 4bm?[S  
    2lBu"R6}  
    WARNING: RAY AIMING IS OFF. Very loose tolerances may not be computed accurately. #'kVW{  
    [2ZZPY9?Q  
    WARNING: Boundary constraints on compensators will be ignored. j [y+'O  
    u|E9X[%  
    Criterion           : Geometric MTF average S&T at 30.0000 cycles per mm g ??@~\Ov  
    Mode                : Sensitivities C`C$i>X7^  
    Sampling            : 2 ed7Hz#Qc  
    Nominal Criterion   : 0.54403234 RIxGwMi%  
    Test Wavelength     : 0.6328 jhSc9  
    orAEVEm  
    XAc#ywophi  
    Fields: XY Symmetric Angle in degrees JxLD}$I  
    #      X-Field      Y-Field       Weight    VDX    VDY    VCX    VCY 8I=migaxP  
    1   0.000E+000   0.000E+000   1.000E+000  0.000  0.000  0.000  0.000 1rhQ{6  
    U}<;4Px]7v  
    Sensitivity Analysis: nc%ly *  
    E@\bFy_!>b  
                     |----------------- Minimum ----------------| |----------------- Maximum ----------------| $+a2CZs!  
    Type                      Value      Criterion        Change          Value      Criterion        Change C$$lJ=>  
    Fringe tolerance on surface 1 !/MHD  
    TFRN   1            -1.00000000     0.54257256    -0.00145977     1.00000000     0.54548607     0.00145374 ]w|,n2DG  
    Change in Focus                :      -0.000000                            0.000000 *1;}c z  
    Fringe tolerance on surface 2 |JH1?n  
    TFRN   2            -1.00000000     0.54177471    -0.00225762     1.00000000     0.54627463     0.00224230 |7l*  
    Change in Focus                :       0.000000                            0.000000 kVe_2oQ_>  
    Fringe tolerance on surface 3 4]]1J L(Ka  
    TFRN   3            -1.00000000     0.54779866     0.00376632     1.00000000     0.54022572    -0.00380662 "5R8Zl+  
    Change in Focus                :      -0.000000                            0.000000 `ynD-_fTN  
    Thickness tolerance on surface 1 ^+ +ec>  
    TTHI   1   3        -0.20000000     0.54321462    -0.00081772     0.20000000     0.54484759     0.00081525 gb_k^wg~1'  
    Change in Focus                :       0.000000                            0.000000 N!F ;!  
    Thickness tolerance on surface 2 X+T +y>e a  
    TTHI   2   3        -0.20000000     0.54478712     0.00075478     0.20000000     0.54327558    -0.00075675 3EKqXXzOB  
    Change in Focus                :       0.000000                           -0.000000 G>0S( M)  
    Decenter X tolerance on surfaces 1 through 3 E6d0YgfD  
    TEDX   1   3        -0.20000000     0.54401464   -1.7700E-005     0.20000000     0.54401464   -1.7700E-005 \[w82%U  
    Change in Focus                :       0.000000                            0.000000 y2eeE CS]  
    Decenter Y tolerance on surfaces 1 through 3 -?WhJ.U  
    TEDY   1   3        -0.20000000     0.54401464   -1.7700E-005     0.20000000     0.54401464   -1.7700E-005 #b4Pn`[   
    Change in Focus                :       0.000000                            0.000000 nAJ<@a  
    Tilt X tolerance on surfaces 1 through 3 (degrees) JY tM1d  
    TETX   1   3        -0.20000000     0.54897548     0.00494314     0.20000000     0.54897548     0.00494314 YS5Pt)?  
    Change in Focus                :       0.000000                            0.000000 <t0o{}^P*  
    Tilt Y tolerance on surfaces 1 through 3 (degrees) /a$RJ6t&3  
    TETY   1   3        -0.20000000     0.54897548     0.00494314     0.20000000     0.54897548     0.00494314 )0JXUC e  
    Change in Focus                :       0.000000                            0.000000 'WG%O7s.  
    Decenter X tolerance on surface 1 skn`Q>a  
    TSDX   1            -0.20000000     0.53999563    -0.00403671     0.20000000     0.53999563    -0.00403671 tA2I_W Cl  
    Change in Focus                :       0.000000                            0.000000 qwU,D6  
    Decenter Y tolerance on surface 1 XZeZqBr  
    TSDY   1            -0.20000000     0.53999563    -0.00403671     0.20000000     0.53999563    -0.00403671 3g]Sp/  
    Change in Focus                :       0.000000                            0.000000 NK+iLXC  
    Tilt X tolerance on surface (degrees) 1 8j} CP  
    TSTX   1            -0.20000000     0.42678383    -0.11724851     0.20000000     0.42678383    -0.11724851 fN TPW]  
    Change in Focus                :       0.000000                            0.000000 QX'/PO  
    Tilt Y tolerance on surface (degrees) 1 'i|z>si[*  
    TSTY   1            -0.20000000     0.42678383    -0.11724851     0.20000000     0.42678383    -0.11724851 YRYAQj/7  
    Change in Focus                :       0.000000                            0.000000 wV;qc3  
    Decenter X tolerance on surface 2 Y|=/*?o}  
    TSDX   2            -0.20000000     0.51705427    -0.02697807     0.20000000     0.51705427    -0.02697807 5/v@VUzH  
    Change in Focus                :       0.000000                            0.000000 D@(Y.&_  
    Decenter Y tolerance on surface 2 'o2x7~C@  
    TSDY   2            -0.20000000     0.51705427    -0.02697807     0.20000000     0.51705427    -0.02697807 Ncu\;K\N  
    Change in Focus                :       0.000000                            0.000000 W|@/<K$V  
    Tilt X tolerance on surface (degrees) 2 %<q l  
    TSTX   2            -0.20000000     0.35349910    -0.19053324     0.20000000     0.35349910    -0.19053324 b"y][5VE  
    Change in Focus                :       0.000000                            0.000000 dM(}1%2  
    Tilt Y tolerance on surface (degrees) 2 }Z ws e%;  
    TSTY   2            -0.20000000     0.35349910    -0.19053324     0.20000000     0.35349910    -0.19053324 ~'e/lX9g-  
    Change in Focus                :       0.000000                            0.000000 KF|<A@V  
    Decenter X tolerance on surface 3 mT8($KQ  
    TSDX   3            -0.20000000     0.53419039    -0.00984195     0.20000000     0.53419039    -0.00984195 YN ~ 7nOw  
    Change in Focus                :       0.000000                            0.000000 Fa$ pr`  
    Decenter Y tolerance on surface 3 {<a(1#{  
    TSDY   3            -0.20000000     0.53419039    -0.00984195     0.20000000     0.53419039    -0.00984195 b<B|p|  
    Change in Focus                :       0.000000                            0.000000 VGY#ph%  
    Tilt X tolerance on surface (degrees) 3 Y zXL8  
    TSTX   3            -0.20000000     0.42861670    -0.11541563     0.20000000     0.42861670    -0.11541563 N6Fj} m&E  
    Change in Focus                :       0.000000                            0.000000 2!/_Xh  
    Tilt Y tolerance on surface (degrees) 3 (DCC4%w"  
    TSTY   3            -0.20000000     0.42861670    -0.11541563     0.20000000     0.42861670    -0.11541563 U<**Est  
    Change in Focus                :       0.000000                            0.000000 QUp()B1  
    Irregularity of surface 1 in fringes WKFmU0RK  
    TIRR   1            -0.20000000     0.50973587    -0.03429647     0.20000000     0.57333868     0.02930634 )A a98Eu?2  
    Change in Focus                :       0.000000                            0.000000 `}KK@(Y  
    Irregularity of surface 2 in fringes nl|}_~4U  
    TIRR   2            -0.20000000     0.53400904    -0.01002330     0.20000000     0.55360281     0.00957047 +%G*)8N3  
    Change in Focus                :       0.000000                            0.000000 iXc-_V6  
    Irregularity of surface 3 in fringes X 5LI  
    TIRR   3            -0.20000000     0.58078982     0.03675748     0.20000000     0.49904394    -0.04498840 2yhtJ9/  
    Change in Focus                :       0.000000                            0.000000 Uc6BI$Fmz  
    Index tolerance on surface 1 Y%b 5{1  
    TIND   1            -0.00100000     0.52606778    -0.01796456     0.00100000     0.56121811     0.01718578 5r qjqfFa  
    Change in Focus                :       0.000000                            0.000000 !Jw   
    Index tolerance on surface 2 /H=fK  
    TIND   2            -0.00100000     0.55639086     0.01235852     0.00100000     0.53126361    -0.01276872 @ba5iIt  
    Change in Focus                :       0.000000                           -0.000000 -Rhxib|<  
    9~DoF]TM  
    Worst offenders: BW}^n  
    Type                      Value      Criterion        Change BlS0I%SN  
    TSTY   2            -0.20000000     0.35349910    -0.19053324 m& DDz+g  
    TSTY   2             0.20000000     0.35349910    -0.19053324 Pq~"`-h7:  
    TSTX   2            -0.20000000     0.35349910    -0.19053324 <L@0w8i`  
    TSTX   2             0.20000000     0.35349910    -0.19053324 >A|6 kzC  
    TSTY   1            -0.20000000     0.42678383    -0.11724851 8@|_];9#.  
    TSTY   1             0.20000000     0.42678383    -0.11724851 .  \ *Z:  
    TSTX   1            -0.20000000     0.42678383    -0.11724851 .!Kdi|a)  
    TSTX   1             0.20000000     0.42678383    -0.11724851 KL!k'4JNY  
    TSTY   3            -0.20000000     0.42861670    -0.11541563 ^9o;=!D!9  
    TSTY   3             0.20000000     0.42861670    -0.11541563 \Nu(+G?e  
    MI|DOp  
    Estimated Performance Changes based upon Root-Sum-Square method: ^u#!Yo.!(  
    Nominal MTF                 :     0.54403234 *plsZ*Q8  
    Estimated change            :    -0.36299231 '8~7Ru\KyX  
    Estimated MTF               :     0.18104003 G8@({EY  
    ~zFs/(k  
    Compensator Statistics:  B&#TbKp  
    Change in back focus: o|Obl@CSBD  
    Minimum            :        -0.000000 2"C'Au  
    Maximum            :         0.000000 &"fMiK3  
    Mean               :        -0.000000 1`2n<qo  
    Standard Deviation :         0.000000 Aj.TX%}`h  
    "g\  
    Monte Carlo Analysis: '5KgRK"  
    Number of trials: 20 k/O|ia 6  
    :k075Zr/#D  
    Initial Statistics: Normal Distribution ts3%cRN r  
    L 4'@f  
      Trial       Criterion        Change V< 0gD?Kx  
          1     0.42804416    -0.11598818 dC_L~ }=  
    Change in Focus                :      -0.400171 =L9sb!  
          2     0.54384387    -0.00018847 C<2vuZD  
    Change in Focus                :       1.018470 H=z@!rJc.  
          3     0.44510003    -0.09893230 ~Rk%M$E9  
    Change in Focus                :      -0.601922 a_m P$4T  
          4     0.18154684    -0.36248550 QP)-O*+AA  
    Change in Focus                :       0.920681 ,IxAt&kN  
          5     0.28665820    -0.25737414 -*k%'Gr  
    Change in Focus                :       1.253875 (1%u`#5n-N  
          6     0.21263372    -0.33139862 g4P059  
    Change in Focus                :      -0.903878 ,2DKphh  
          7     0.40051424    -0.14351809 U;:>vi3p  
    Change in Focus                :      -1.354815 tS8*l2Y`   
          8     0.48754161    -0.05649072 afv? z  
    Change in Focus                :       0.215922 zF.rsNY  
          9     0.40357468    -0.14045766 {LbNKjn  
    Change in Focus                :       0.281783 -<sn+-uE:  
         10     0.26315315    -0.28087919 !E,$@mvd  
    Change in Focus                :      -1.048393 *j2P#et  
         11     0.26120585    -0.28282649 {bl&r?[y  
    Change in Focus                :       1.017611 ]]Ypi=<'  
         12     0.24033815    -0.30369419 [ECSJc&i  
    Change in Focus                :      -0.109292 R:x4j#(  
         13     0.37164046    -0.17239188 u}D.yI8  
    Change in Focus                :      -0.692430 g}@_ @  
         14     0.48597489    -0.05805744 7w_`<b6  
    Change in Focus                :      -0.662040 }XWic88!~  
         15     0.21462327    -0.32940907 FJKt5}`8  
    Change in Focus                :       1.611296 c~b[_J)  
         16     0.43378226    -0.11025008 ~ d^+yR-  
    Change in Focus                :      -0.640081 WZ'8{XY8  
         17     0.39321881    -0.15081353 bKYLBu:  
    Change in Focus                :       0.914906 "X g@X5BG  
         18     0.20692530    -0.33710703 uO>$,s  
    Change in Focus                :       0.801607 Ku*@4#<L6h  
         19     0.51374068    -0.03029165 SJ^.#^)  
    Change in Focus                :       0.947293 6BRQX\  
         20     0.38013374    -0.16389860 4Z"D F)+}  
    Change in Focus                :       0.667010 j?29_Az  
    mm'n#%\G  
    Number of traceable Monte Carlo files generated: 20 u1/4WYJeJ  
    oU% rP  
    Nominal     0.54403234 (]^9>3{|  
    Best        0.54384387    Trial     2 E< "aUnI  
    Worst       0.18154684    Trial     4 YTpSR~!Rj  
    Mean        0.35770970 \eH~1@\S  
    Std Dev     0.11156454 +'2Mj|d@p  
    DbP!wU lqR  
    8n?qm96  
    Compensator Statistics: Dr$k6kZ}'U  
    Change in back focus: d3_aFs Q  
    Minimum            :        -1.354815 ! pR&&uG  
    Maximum            :         1.611296 (Ybc~M)z  
    Mean               :         0.161872 D3$PvX[f  
    Standard Deviation :         0.869664 )9 5&-Hs  
    kjfZ*V=-  
    90% >       0.20977951               &Vg+n 0  
    80% >       0.22748071               xmb]L:4F  
    50% >       0.38667627               RZ:Yu  
    20% >       0.46553746               fQ=Yf?b  
    10% >       0.50064115                "yXKu)_  
    g2JNa?z  
    End of Run. <w` R ;  
    d^mw&F)S  
    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 ;"-(QE?Mv  
    B BbGq8p  
    0=#:x()e  
    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 fPZt*A__  
    bdZ[`uMD  
    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                 dv -L!C  
    80% >       0.22748071                 {L~j;p_G&  
    50% >       0.38667627                 #V&98 F  
    20% >       0.46553746                 ?!^ow5"8  
    10% >       0.50064115 _HF66)X7  
    TwlX'iI_;  
    最后这个数值是MTF值呢，还是MTF的公差？ FlGU1%]m  
    6D|[3rXr  
    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？？？   ,`PC^`0c}o  
    KBE3q)  
    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  : Qb%o%z?hee  
    90% >       0.20977951                 8 Y4mTW  
    80% >       0.22748071                 vtq$@#?~ b  
    50% >       0.38667627                 O&dBLh!G  
    20% >       0.46553746                 |`ya+/ff+  
    10% >       0.50064115 7|5X> yt  
    ....... g.Tc>?~  
    :)Pj()Os|  
    fmq''1u  
    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   O8 OAXRt/Y  
    Mode                : Sensitivities ;FQNO:NP  
    Sampling            : 2 )I#{\^  
    Nominal Criterion   : 0.54403234 PYBE?td  
    Test Wavelength     : 0.6328 3eg6 CdT  
    Lqdapx"Z_  
    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？ "fr{:'HX  
    ,z<1:st]<  
    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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