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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 5ov%(QI  
    qgNK!(kWpr  
    x(=x;X$[^  
    L:-lqag!  
    然后添加了默认公差分析，基本没变 b`zf&Mn  
    @g~sgE}#  
    k#xpY!'7  
    "Ycd$`{Vgt  
    然后运行分析的结果如下： sjm79/  
    H%]ch6C  
    Analysis of Tolerances R:N-y."La.  
    QEa=!O  
    File : E:\光学设计资料\zemax练习\f500.ZMX 7`HUwu  
    Title: |m- `, we  
    Date : TUE JUN 21 2011 c ?XUb[  
    mNoqs&UB  
    Units are Millimeters. "M^W:4_  
    All changes are computed using linear differences. AW5g (  
    0h4}RmS  
    Paraxial Focus compensation only. +;;%Atgn  
    ~b0qrjF;O  
    WARNING: Solves should be removed prior to tolerancing. S8m&Rj3O&  
    RCXSz  
    Mnemonics: bq-\'h f<  
    TFRN: Tolerance on curvature in fringes. =fK'Ep[  
    TTHI: Tolerance on thickness. -FV'%X$i  
    TSDX: Tolerance on surface decentering in x. g/p9"eBpq  
    TSDY: Tolerance on surface decentering in y. 0z7mre^Q  
    TSTX: Tolerance on surface tilt in x (degrees). @l GnG  
    TSTY: Tolerance on surface tilt in y (degrees). Y{RB\}f(  
    TIRR: Tolerance on irregularity (fringes). !#1A7[WN  
    TIND: Tolerance on Nd index of refraction. tY'QQN||  
    TEDX: Tolerance on element decentering in x. pVS2dwBqE  
    TEDY: Tolerance on element decentering in y. K-C-+RB  
    TETX: Tolerance on element tilt in x (degrees). }TJ|d=  
    TETY: Tolerance on element tilt in y (degrees). **w~  
    2-!Mao"^  
    WARNING: RAY AIMING IS OFF. Very loose tolerances may not be computed accurately. +|)1_NK  
    } <4[(N  
    WARNING: Boundary constraints on compensators will be ignored. \N+Ta:U1P  
    wS*CcIwj  
    Criterion           : Geometric MTF average S&T at 30.0000 cycles per mm ?3,tG z)  
    Mode                : Sensitivities lFGxW 5  
    Sampling            : 2 UMQW#$~C{g  
    Nominal Criterion   : 0.54403234 E :=KH\2f  
    Test Wavelength     : 0.6328 AO$PuzlLh  
    zN/~a)  
    #UCQiQfP  
    Fields: XY Symmetric Angle in degrees oV>AFs6  
    #      X-Field      Y-Field       Weight    VDX    VDY    VCX    VCY |!5T+H{Sj  
    1   0.000E+000   0.000E+000   1.000E+000  0.000  0.000  0.000  0.000 cqL7dlhIl  
    Z !25xqNCd  
    Sensitivity Analysis: y6jmn1K  
    _ZM9 "<M-X  
                     |----------------- Minimum ----------------| |----------------- Maximum ----------------| Ny,A#-?  
    Type                      Value      Criterion        Change          Value      Criterion        Change 0nq}SH  
    Fringe tolerance on surface 1 ZQ-`l:G  
    TFRN   1            -1.00000000     0.54257256    -0.00145977     1.00000000     0.54548607     0.00145374 2$zq (  
    Change in Focus                :      -0.000000                            0.000000 iv z?-X4]  
    Fringe tolerance on surface 2 kJi&9  
    TFRN   2            -1.00000000     0.54177471    -0.00225762     1.00000000     0.54627463     0.00224230 vq:OH H  
    Change in Focus                :       0.000000                            0.000000 &Z;8J @  
    Fringe tolerance on surface 3 2vdQ&H4  
    TFRN   3            -1.00000000     0.54779866     0.00376632     1.00000000     0.54022572    -0.00380662 I5yd )72  
    Change in Focus                :      -0.000000                            0.000000 |\n)<r_  
    Thickness tolerance on surface 1 s8Ry}{  
    TTHI   1   3        -0.20000000     0.54321462    -0.00081772     0.20000000     0.54484759     0.00081525 W$Q)aA7  
    Change in Focus                :       0.000000                            0.000000  Am%a4{b  
    Thickness tolerance on surface 2 aU<D$I  
    TTHI   2   3        -0.20000000     0.54478712     0.00075478     0.20000000     0.54327558    -0.00075675 k.xv+^b9Q  
    Change in Focus                :       0.000000                           -0.000000 6(^Upk=59  
    Decenter X tolerance on surfaces 1 through 3 yX.5Y|A<  
    TEDX   1   3        -0.20000000     0.54401464   -1.7700E-005     0.20000000     0.54401464   -1.7700E-005 ? Ga2K  
    Change in Focus                :       0.000000                            0.000000 Rk jKIa  
    Decenter Y tolerance on surfaces 1 through 3 KR+BuL+L  
    TEDY   1   3        -0.20000000     0.54401464   -1.7700E-005     0.20000000     0.54401464   -1.7700E-005 JRjMt-7H_  
    Change in Focus                :       0.000000                            0.000000 9#T%bB "J  
    Tilt X tolerance on surfaces 1 through 3 (degrees) &#PBww  
    TETX   1   3        -0.20000000     0.54897548     0.00494314     0.20000000     0.54897548     0.00494314 Ms'TC; &PS  
    Change in Focus                :       0.000000                            0.000000 P[I*%  
    Tilt Y tolerance on surfaces 1 through 3 (degrees) Z++Z@J"  
    TETY   1   3        -0.20000000     0.54897548     0.00494314     0.20000000     0.54897548     0.00494314 @S"pJeP/f  
    Change in Focus                :       0.000000                            0.000000 acYoOW1G  
    Decenter X tolerance on surface 1 pG F5aF7T  
    TSDX   1            -0.20000000     0.53999563    -0.00403671     0.20000000     0.53999563    -0.00403671 A6UdWK  
    Change in Focus                :       0.000000                            0.000000 +.(}u ,:8  
    Decenter Y tolerance on surface 1 |Iok(0V  
    TSDY   1            -0.20000000     0.53999563    -0.00403671     0.20000000     0.53999563    -0.00403671 O})u'  
    Change in Focus                :       0.000000                            0.000000 :O'C:n<g  
    Tilt X tolerance on surface (degrees) 1 E7NbPNd  
    TSTX   1            -0.20000000     0.42678383    -0.11724851     0.20000000     0.42678383    -0.11724851 yg-FJ/  
    Change in Focus                :       0.000000                            0.000000 Dj ]Hgg  
    Tilt Y tolerance on surface (degrees) 1 ?F87C[o  
    TSTY   1            -0.20000000     0.42678383    -0.11724851     0.20000000     0.42678383    -0.11724851 tk)>CK11  
    Change in Focus                :       0.000000                            0.000000 =SK+ \j$  
    Decenter X tolerance on surface 2 e8ULf~I  
    TSDX   2            -0.20000000     0.51705427    -0.02697807     0.20000000     0.51705427    -0.02697807 1; Wkt9]9  
    Change in Focus                :       0.000000                            0.000000 UC+7-y,  
    Decenter Y tolerance on surface 2 zJuRth)(,  
    TSDY   2            -0.20000000     0.51705427    -0.02697807     0.20000000     0.51705427    -0.02697807 2 ]DCF  
    Change in Focus                :       0.000000                            0.000000 &ap`}^8pM  
    Tilt X tolerance on surface (degrees) 2 3:~l2KIP4  
    TSTX   2            -0.20000000     0.35349910    -0.19053324     0.20000000     0.35349910    -0.19053324 <5ft6a2fQ  
    Change in Focus                :       0.000000                            0.000000 [Zt# c C+  
    Tilt Y tolerance on surface (degrees) 2 I*:qGr+ WJ  
    TSTY   2            -0.20000000     0.35349910    -0.19053324     0.20000000     0.35349910    -0.19053324 I`"-$99|t1  
    Change in Focus                :       0.000000                            0.000000 <=m 30{;f  
    Decenter X tolerance on surface 3 )+w/\~@  
    TSDX   3            -0.20000000     0.53419039    -0.00984195     0.20000000     0.53419039    -0.00984195 o,CA;_  
    Change in Focus                :       0.000000                            0.000000 iFnOl*TC  
    Decenter Y tolerance on surface 3 W7TXI~7  
    TSDY   3            -0.20000000     0.53419039    -0.00984195     0.20000000     0.53419039    -0.00984195 ,a9D~i 9R  
    Change in Focus                :       0.000000                            0.000000 esh$*)1  
    Tilt X tolerance on surface (degrees) 3 zr3q>]oma  
    TSTX   3            -0.20000000     0.42861670    -0.11541563     0.20000000     0.42861670    -0.11541563 k_K,J 6_)  
    Change in Focus                :       0.000000                            0.000000 qu<B%v  
    Tilt Y tolerance on surface (degrees) 3 'Vm5Cs$  
    TSTY   3            -0.20000000     0.42861670    -0.11541563     0.20000000     0.42861670    -0.11541563 zM_DE  
    Change in Focus                :       0.000000                            0.000000 2Ft8dfdm`  
    Irregularity of surface 1 in fringes 4V228>9w  
    TIRR   1            -0.20000000     0.50973587    -0.03429647     0.20000000     0.57333868     0.02930634 A#Q0{z@H  
    Change in Focus                :       0.000000                            0.000000 1!>bhH}{D  
    Irregularity of surface 2 in fringes @zr8%8n  
    TIRR   2            -0.20000000     0.53400904    -0.01002330     0.20000000     0.55360281     0.00957047 '0CXHjZN  
    Change in Focus                :       0.000000                            0.000000 ^sT +5M^  
    Irregularity of surface 3 in fringes !@^y)v  
    TIRR   3            -0.20000000     0.58078982     0.03675748     0.20000000     0.49904394    -0.04498840 %\X P:  
    Change in Focus                :       0.000000                            0.000000 y$j1?7  
    Index tolerance on surface 1 5:*5j@/S  
    TIND   1            -0.00100000     0.52606778    -0.01796456     0.00100000     0.56121811     0.01718578 ~']&.  
    Change in Focus                :       0.000000                            0.000000 :k ME  
    Index tolerance on surface 2 ]r/(n]=(  
    TIND   2            -0.00100000     0.55639086     0.01235852     0.00100000     0.53126361    -0.01276872 x1m8~F  
    Change in Focus                :       0.000000                           -0.000000 qPXANx<^  
    FG>;P]mvp  
    Worst offenders: VD9 q5tt7  
    Type                      Value      Criterion        Change CdBthOPX)  
    TSTY   2            -0.20000000     0.35349910    -0.19053324 00`bL  
    TSTY   2             0.20000000     0.35349910    -0.19053324 bK$/,,0=X/  
    TSTX   2            -0.20000000     0.35349910    -0.19053324 ^i{,z*vi  
    TSTX   2             0.20000000     0.35349910    -0.19053324 '?{0z!!  
    TSTY   1            -0.20000000     0.42678383    -0.11724851 ;f".'9 l^  
    TSTY   1             0.20000000     0.42678383    -0.11724851 < 72s7*Rv  
    TSTX   1            -0.20000000     0.42678383    -0.11724851 F* 3G _V  
    TSTX   1             0.20000000     0.42678383    -0.11724851 '^Pq(b~  
    TSTY   3            -0.20000000     0.42861670    -0.11541563 wUru1_zjO  
    TSTY   3             0.20000000     0.42861670    -0.11541563 }yx=(+jP  
    xHEVR!&c4  
    Estimated Performance Changes based upon Root-Sum-Square method: ]PR|d\O  
    Nominal MTF                 :     0.54403234 `"xk,fVYd  
    Estimated change            :    -0.36299231 O%YjWb  
    Estimated MTF               :     0.18104003 QO5OnYh  
    X+`ddX  
    Compensator Statistics: V~'k1P4  
    Change in back focus: -d|BO[4j  
    Minimum            :        -0.000000 ?-pxte8  
    Maximum            :         0.000000 9"WRIHt'c  
    Mean               :        -0.000000 a);O3N/*I  
    Standard Deviation :         0.000000 " t5 +*  
    ?gd'M_-J,  
    Monte Carlo Analysis: ((-aC`  
    Number of trials: 20 ]~?S~l%  
    K H>Sc3p  
    Initial Statistics: Normal Distribution 51&|t#8h  
    !(W[!%  
      Trial       Criterion        Change 3xBN10R#  
          1     0.42804416    -0.11598818 /lf\ E=  
    Change in Focus                :      -0.400171 @ \!KF*v  
          2     0.54384387    -0.00018847 W:`5nj]H9  
    Change in Focus                :       1.018470 i'M^ez)u  
          3     0.44510003    -0.09893230 jmRhAJV  
    Change in Focus                :      -0.601922 gb]h OB7g  
          4     0.18154684    -0.36248550 8'3"uv  
    Change in Focus                :       0.920681 5>'?:jY  
          5     0.28665820    -0.25737414 ow-+>Y[qZ  
    Change in Focus                :       1.253875 ^Lsc`<xC  
          6     0.21263372    -0.33139862 L&:M8xiA~$  
    Change in Focus                :      -0.903878  &|/vM.  
          7     0.40051424    -0.14351809 !c\7  
    Change in Focus                :      -1.354815 &@=u+)^-{  
          8     0.48754161    -0.05649072 ?$<SCN =  
    Change in Focus                :       0.215922 hbV E; 9  
          9     0.40357468    -0.14045766 IKvd!,0xf  
    Change in Focus                :       0.281783 n)tU9@4Np  
         10     0.26315315    -0.28087919 Xf6fH O  
    Change in Focus                :      -1.048393 53bM+  
         11     0.26120585    -0.28282649 86/.8  
    Change in Focus                :       1.017611 +*n] tlk  
         12     0.24033815    -0.30369419 M,&tA1CH  
    Change in Focus                :      -0.109292 grGhN q  
         13     0.37164046    -0.17239188 HpW" lYW4  
    Change in Focus                :      -0.692430 c L?\^K)  
         14     0.48597489    -0.05805744 d?JAUbqy  
    Change in Focus                :      -0.662040 !K!)S^^Po?  
         15     0.21462327    -0.32940907 IZ+ *`E  
    Change in Focus                :       1.611296 w-J"zC  
         16     0.43378226    -0.11025008 a4%`"  
    Change in Focus                :      -0.640081 ,r@xPZPz:e  
         17     0.39321881    -0.15081353 YQN.Ohtv*F  
    Change in Focus                :       0.914906 }bZ 8-v  
         18     0.20692530    -0.33710703 \$'R+k-57;  
    Change in Focus                :       0.801607 S<V-ZV&_:U  
         19     0.51374068    -0.03029165 L?C\Q^0"`G  
    Change in Focus                :       0.947293 jh>N_cp  
         20     0.38013374    -0.16389860 YFG-U-t3  
    Change in Focus                :       0.667010 =ntft SH  
    P_Z M'[  
    Number of traceable Monte Carlo files generated: 20 a-fv[oB  
    9`&?hi49nK  
    Nominal     0.54403234 ol50d73B  
    Best        0.54384387    Trial     2 w_\nB}_  
    Worst       0.18154684    Trial     4 iA]DE`S  
    Mean        0.35770970 *K`x;r  
    Std Dev     0.11156454 wqcDAO (  
    Ocybc%  
    aUA cR W  
    Compensator Statistics: </,.K`''W  
    Change in back focus: ebzzzmwo  
    Minimum            :        -1.354815 I<sfN'FpT  
    Maximum            :         1.611296 18jJzYawh  
    Mean               :         0.161872  +.=1^+a  
    Standard Deviation :         0.869664 XWJ SLN(O  
    s} s|~  
    90% >       0.20977951               >8%M*-=p  
    80% >       0.22748071               TM)u?t+[  
    50% >       0.38667627               ]}.0el{  
    20% >       0.46553746               Cb4_ ?OR0  
    10% >       0.50064115                HV8I nodi  
    ti}f&w ICJ  
    End of Run. 3+ e4e  
    ,'=hjIel  
    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 MBlBMUJk  
    l(#1mY5!q8  
    KyjyjfIwH  
    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 &m'?*O |  
    >G&^?5  
    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                 '$?du~L-  
    80% >       0.22748071                 D#ZPq,f  
    50% >       0.38667627                 2QL?]Vo  
    20% >       0.46553746                 +j.qZ8  
    10% >       0.50064115 t0.;nv@A0  
    b)`pZiQP  
    最后这个数值是MTF值呢，还是MTF的公差？ y6FKg)  
    _4v"")Xe  
    也就是说，这到底是有90%的产品MTF大于0.20977951还是90%的产品的MTF变化量大于0.20977951？？？   8ljuc5,J  
    <aXoB*Y  
    怎么没人啊，大家讨论讨论吗
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    只看该作者 3楼 发表于: 2011-06-23
    没有人啊？？？
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    只看该作者 4楼 发表于: 2011-06-23
    引用第2楼sansummer于2011-06-22 08:56发表的  :  KGT3|)QN  
    90% >       0.20977951                 !8/gL  
    80% >       0.22748071                 JC2*$qu J  
    50% >       0.38667627                 + zp0" ,2B  
    20% >       0.46553746                 0OWL  
    10% >       0.50064115 $.8 H>c  
    ....... &*gbK6JB  
    !_x*m@/  
    J\A8qh8  
    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   9rcI+q=E  
    Mode                : Sensitivities A*i_|]Q  
    Sampling            : 2 .NnGVxc5*  
    Nominal Criterion   : 0.54403234 rQj~[Y.c  
    Test Wavelength     : 0.6328 BIfi:7I;Q  
    vgThK9{m;  
    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？ =x H~ww (D  
    0p3vE,pF  
    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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