切换到宽版
  • 广告投放
  • 稿件投递
  • 繁體中文
    • 16434阅读
    • 24回复

    [讨论]公差分析结果的疑问 [复制链接]

    上一主题 下一主题
    在线sansummer
     
    发帖
    959
    光币
    1087
    光券
    1
    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 P]A~:Lj  
    ^pc?oDPSg  
    ]S2F9  
    b7uxCH]Z  
    然后添加了默认公差分析,基本没变 *(+*tj cWa  
    )G+D6s23  
    J]AkWEiCJ  
    Y| dw>qO  
    然后运行分析的结果如下: 4{v?<x8  
    ._X|Ye9/  
    Analysis of Tolerances !_P-?u  
    , tEd>  
    File : E:\光学设计资料\zemax练习\f500.ZMX j tH>&O  
    Title: .EfGL _  
    Date : TUE JUN 21 2011  S!Bnz(z  
    ~[Fh+t(Y  
    Units are Millimeters. px=k&|l  
    All changes are computed using linear differences. -J& b~t@  
    7*MjQzg-P  
    Paraxial Focus compensation only. eaWK2%v  
    ^D]y<@01  
    WARNING: Solves should be removed prior to tolerancing. :OKU@l|  
    >gT QD\k:D  
    Mnemonics: BD_"w]bqD  
    TFRN: Tolerance on curvature in fringes. AMSn^ 75  
    TTHI: Tolerance on thickness. j e;^i,&  
    TSDX: Tolerance on surface decentering in x. J|uSj/8  
    TSDY: Tolerance on surface decentering in y. 4qKMnYR  
    TSTX: Tolerance on surface tilt in x (degrees). qmF+@R&^i  
    TSTY: Tolerance on surface tilt in y (degrees). b~td ^  
    TIRR: Tolerance on irregularity (fringes). Y$4dqn  
    TIND: Tolerance on Nd index of refraction. df R?O#JPU  
    TEDX: Tolerance on element decentering in x. B*;PF  
    TEDY: Tolerance on element decentering in y. )VM'^sV?  
    TETX: Tolerance on element tilt in x (degrees). 1i=p5,|  
    TETY: Tolerance on element tilt in y (degrees). #I-qL/Lm  
    6DxT(VU}  
    WARNING: RAY AIMING IS OFF. Very loose tolerances may not be computed accurately. I AFj_VWC0  
    +01bjM6F_1  
    WARNING: Boundary constraints on compensators will be ignored. w:|YOeP  
    VthM`~3  
    Criterion           : Geometric MTF average S&T at 30.0000 cycles per mm /I@`B2  
    Mode                : Sensitivities O|e/(s?$  
    Sampling            : 2 KkPr08  
    Nominal Criterion   : 0.54403234 +rOfQ'lQ  
    Test Wavelength     : 0.6328 @~j- -L  
    _s~F/G`iT  
    [E:-$R  
    Fields: XY Symmetric Angle in degrees Sd?+j;/"  
    #      X-Field      Y-Field       Weight    VDX    VDY    VCX    VCY 5X}OUn8  
    1   0.000E+000   0.000E+000   1.000E+000  0.000  0.000  0.000  0.000 '(fCi  
    Uv|^k8(  
    Sensitivity Analysis: zz[[9Am!  
    Epm%/ {sHV  
                     |----------------- Minimum ----------------| |----------------- Maximum ----------------| dx)v`.%V  
    Type                      Value      Criterion        Change          Value      Criterion        Change <,+6:NmT  
    Fringe tolerance on surface 1 $E35 W=~)  
    TFRN   1            -1.00000000     0.54257256    -0.00145977     1.00000000     0.54548607     0.00145374 &?0hj@kd~  
    Change in Focus                :      -0.000000                            0.000000 LT:*K!>NOL  
    Fringe tolerance on surface 2 'qlWDt/  
    TFRN   2            -1.00000000     0.54177471    -0.00225762     1.00000000     0.54627463     0.00224230 jx-8%dxtZ  
    Change in Focus                :       0.000000                            0.000000 |7:{vA5  
    Fringe tolerance on surface 3 gH[lpRu|7  
    TFRN   3            -1.00000000     0.54779866     0.00376632     1.00000000     0.54022572    -0.00380662 B[{Ie G'  
    Change in Focus                :      -0.000000                            0.000000 Jo9!:2?  
    Thickness tolerance on surface 1 9 Xx4,#?  
    TTHI   1   3        -0.20000000     0.54321462    -0.00081772     0.20000000     0.54484759     0.00081525 [+ N 5  
    Change in Focus                :       0.000000                            0.000000 /GU%{nT  
    Thickness tolerance on surface 2 3@^b's'S|}  
    TTHI   2   3        -0.20000000     0.54478712     0.00075478     0.20000000     0.54327558    -0.00075675 }< m@82\  
    Change in Focus                :       0.000000                           -0.000000 r57rH^Hc  
    Decenter X tolerance on surfaces 1 through 3 TM$Ek^fQ.  
    TEDX   1   3        -0.20000000     0.54401464   -1.7700E-005     0.20000000     0.54401464   -1.7700E-005 G{{Or  
    Change in Focus                :       0.000000                            0.000000 J>S`}p  
    Decenter Y tolerance on surfaces 1 through 3 ba"a!#wA  
    TEDY   1   3        -0.20000000     0.54401464   -1.7700E-005     0.20000000     0.54401464   -1.7700E-005 c[E>2P2-_  
    Change in Focus                :       0.000000                            0.000000 P(XNtQ=K  
    Tilt X tolerance on surfaces 1 through 3 (degrees) >a5avSn  
    TETX   1   3        -0.20000000     0.54897548     0.00494314     0.20000000     0.54897548     0.00494314 +{/*P 5  
    Change in Focus                :       0.000000                            0.000000 ko<VB#pOMr  
    Tilt Y tolerance on surfaces 1 through 3 (degrees) d$*SVd:  
    TETY   1   3        -0.20000000     0.54897548     0.00494314     0.20000000     0.54897548     0.00494314 zP;1mN  
    Change in Focus                :       0.000000                            0.000000 a&~]77)  
    Decenter X tolerance on surface 1 <B =!ZC=n  
    TSDX   1            -0.20000000     0.53999563    -0.00403671     0.20000000     0.53999563    -0.00403671 jHWJpm(  
    Change in Focus                :       0.000000                            0.000000 ,';+A{aV  
    Decenter Y tolerance on surface 1 ;WpPdR2  
    TSDY   1            -0.20000000     0.53999563    -0.00403671     0.20000000     0.53999563    -0.00403671 ^><B5A>;  
    Change in Focus                :       0.000000                            0.000000 PdD| 3B&  
    Tilt X tolerance on surface (degrees) 1 * S>,5R0k  
    TSTX   1            -0.20000000     0.42678383    -0.11724851     0.20000000     0.42678383    -0.11724851 WX9pJ9d  
    Change in Focus                :       0.000000                            0.000000 wfc[B;K\  
    Tilt Y tolerance on surface (degrees) 1 #$(wfb9  
    TSTY   1            -0.20000000     0.42678383    -0.11724851     0.20000000     0.42678383    -0.11724851 Le':b2o  
    Change in Focus                :       0.000000                            0.000000 OJ\rT.{  
    Decenter X tolerance on surface 2 4!r> ^a  
    TSDX   2            -0.20000000     0.51705427    -0.02697807     0.20000000     0.51705427    -0.02697807 gH zjI[WI  
    Change in Focus                :       0.000000                            0.000000 ^Wz3 q-^  
    Decenter Y tolerance on surface 2 q{t"=@lX01  
    TSDY   2            -0.20000000     0.51705427    -0.02697807     0.20000000     0.51705427    -0.02697807 gZ1|b  
    Change in Focus                :       0.000000                            0.000000 UZUG ?UUM  
    Tilt X tolerance on surface (degrees) 2 Q|W!m0XO  
    TSTX   2            -0.20000000     0.35349910    -0.19053324     0.20000000     0.35349910    -0.19053324 e{x|d?)8  
    Change in Focus                :       0.000000                            0.000000 Bt^];DjH  
    Tilt Y tolerance on surface (degrees) 2 ]0wmvTR  
    TSTY   2            -0.20000000     0.35349910    -0.19053324     0.20000000     0.35349910    -0.19053324 4D\+_Ic3  
    Change in Focus                :       0.000000                            0.000000 fMFlY%@t  
    Decenter X tolerance on surface 3 I NE,/a=  
    TSDX   3            -0.20000000     0.53419039    -0.00984195     0.20000000     0.53419039    -0.00984195 H9Pe,eHs  
    Change in Focus                :       0.000000                            0.000000 i|Y_X  
    Decenter Y tolerance on surface 3  YErn50L  
    TSDY   3            -0.20000000     0.53419039    -0.00984195     0.20000000     0.53419039    -0.00984195 o ) FjWf;  
    Change in Focus                :       0.000000                            0.000000 Q,A`"e#:  
    Tilt X tolerance on surface (degrees) 3 +6* .lRA  
    TSTX   3            -0.20000000     0.42861670    -0.11541563     0.20000000     0.42861670    -0.11541563 v1j]&3O  
    Change in Focus                :       0.000000                            0.000000 Eh)VU_D  
    Tilt Y tolerance on surface (degrees) 3 7" wn0 24  
    TSTY   3            -0.20000000     0.42861670    -0.11541563     0.20000000     0.42861670    -0.11541563 i#~1|2  
    Change in Focus                :       0.000000                            0.000000 -=]LQHuQ  
    Irregularity of surface 1 in fringes {@u}-6:wAT  
    TIRR   1            -0.20000000     0.50973587    -0.03429647     0.20000000     0.57333868     0.02930634 5}4MXI4  
    Change in Focus                :       0.000000                            0.000000 J}.y+b>8\  
    Irregularity of surface 2 in fringes =9;jVaEMJL  
    TIRR   2            -0.20000000     0.53400904    -0.01002330     0.20000000     0.55360281     0.00957047 = *A_{u;E  
    Change in Focus                :       0.000000                            0.000000 g loo].z  
    Irregularity of surface 3 in fringes =c8U:\0  
    TIRR   3            -0.20000000     0.58078982     0.03675748     0.20000000     0.49904394    -0.04498840 )LYj,do  
    Change in Focus                :       0.000000                            0.000000 $u4esg  
    Index tolerance on surface 1 ,b@0Qa"  
    TIND   1            -0.00100000     0.52606778    -0.01796456     0.00100000     0.56121811     0.01718578 Vy:ER  
    Change in Focus                :       0.000000                            0.000000 32IN;X|  
    Index tolerance on surface 2 (;T; ?v`-  
    TIND   2            -0.00100000     0.55639086     0.01235852     0.00100000     0.53126361    -0.01276872 ^IGTGY]s  
    Change in Focus                :       0.000000                           -0.000000 m`c(J1Et  
    lC1X9Op  
    Worst offenders: NwG&uc+Q  
    Type                      Value      Criterion        Change ^~5tntb.  
    TSTY   2            -0.20000000     0.35349910    -0.19053324 LE Y Y{G?  
    TSTY   2             0.20000000     0.35349910    -0.19053324 FK#>E[[  
    TSTX   2            -0.20000000     0.35349910    -0.19053324 AMYoSc  
    TSTX   2             0.20000000     0.35349910    -0.19053324 EVj48  
    TSTY   1            -0.20000000     0.42678383    -0.11724851 =k[!p'~jD  
    TSTY   1             0.20000000     0.42678383    -0.11724851 *0R=(Gy  
    TSTX   1            -0.20000000     0.42678383    -0.11724851 ^aZ Wu|p  
    TSTX   1             0.20000000     0.42678383    -0.11724851 ^U_B>0`ch  
    TSTY   3            -0.20000000     0.42861670    -0.11541563 5hpb=2  
    TSTY   3             0.20000000     0.42861670    -0.11541563 U<r<$K  
    *k'9 %'<  
    Estimated Performance Changes based upon Root-Sum-Square method: F ,{nG[PL  
    Nominal MTF                 :     0.54403234 _}!Q4K  
    Estimated change            :    -0.36299231 zoOm[X=?3  
    Estimated MTF               :     0.18104003 vfegIoZ  
    7Hpsmfm  
    Compensator Statistics: va;d[D,  
    Change in back focus: wrn[q{dX  
    Minimum            :        -0.000000 (>0d+ KT  
    Maximum            :         0.000000 X5U!25d]  
    Mean               :        -0.000000 y::;e#.  
    Standard Deviation :         0.000000 SQ5*?u\  
    (7ew&u\Li  
    Monte Carlo Analysis: fD\h5`-  
    Number of trials: 20 ^@)/VfVg  
    =10t3nA1$  
    Initial Statistics: Normal Distribution de1&  
    XE$eHx3;  
      Trial       Criterion        Change ]V@! kg(p8  
          1     0.42804416    -0.11598818 +nMgQOs  
    Change in Focus                :      -0.400171 o-O/MS   
          2     0.54384387    -0.00018847 _n}!1(xYa`  
    Change in Focus                :       1.018470 v:6b&wS L3  
          3     0.44510003    -0.09893230 wKY6[vvF  
    Change in Focus                :      -0.601922 E7_^RWG  
          4     0.18154684    -0.36248550 o JA58/  
    Change in Focus                :       0.920681 5[gkGKkf_  
          5     0.28665820    -0.25737414 dIO\ lL   
    Change in Focus                :       1.253875 q]Qgg  
          6     0.21263372    -0.33139862 Op%^dwVG(v  
    Change in Focus                :      -0.903878 :{66WSa@Dd  
          7     0.40051424    -0.14351809 j9u-C/Q\r  
    Change in Focus                :      -1.354815 (tq)64XVz  
          8     0.48754161    -0.05649072 =_yOX=g|  
    Change in Focus                :       0.215922 .X2mEnh  
          9     0.40357468    -0.14045766 WejY b;KS  
    Change in Focus                :       0.281783 ,XA;S5FE  
         10     0.26315315    -0.28087919 0KDDAkR5R  
    Change in Focus                :      -1.048393 n1ED _9  
         11     0.26120585    -0.28282649 2s{yg%U(  
    Change in Focus                :       1.017611 y ph  
         12     0.24033815    -0.30369419 5e2m EQU>  
    Change in Focus                :      -0.109292 `z=MI66Nl  
         13     0.37164046    -0.17239188 D9LwYftZ  
    Change in Focus                :      -0.692430 XPEjMm'*b3  
         14     0.48597489    -0.05805744 p-7dJ  
    Change in Focus                :      -0.662040 lHGv:TN  
         15     0.21462327    -0.32940907 s{q2C}=$?D  
    Change in Focus                :       1.611296 kcYR:;y  
         16     0.43378226    -0.11025008 5;^8wh(  
    Change in Focus                :      -0.640081 8Peqm?{5Y5  
         17     0.39321881    -0.15081353 Zh(f2urKV  
    Change in Focus                :       0.914906 r\Nn WS J  
         18     0.20692530    -0.33710703 2d>PN^x  
    Change in Focus                :       0.801607 W.67, 0m$  
         19     0.51374068    -0.03029165 sJ?kp^!g  
    Change in Focus                :       0.947293 ]Pd*w`R  
         20     0.38013374    -0.16389860 B\=&v8  
    Change in Focus                :       0.667010 'QV 4 =h`  
    <K0lS;@K  
    Number of traceable Monte Carlo files generated: 20 wM&G-~9ujk  
    WWe.1A,  
    Nominal     0.54403234 ( ~OwO_|3  
    Best        0.54384387    Trial     2 q@!:<Ra,){  
    Worst       0.18154684    Trial     4 =[k9{cVW  
    Mean        0.35770970 =az$WRV+7!  
    Std Dev     0.11156454 SA&wW\Ym]  
    Sph+kiy|  
    e!-'O0-Kw  
    Compensator Statistics: ;,A\bmC  
    Change in back focus: sS|zz,y  
    Minimum            :        -1.354815 };+s0:H  
    Maximum            :         1.611296 ~J2Q0Jv  
    Mean               :         0.161872 )3 r1; ^W  
    Standard Deviation :         0.869664 @E)XT\;3  
    ?SAi t Q3  
    90% >       0.20977951               f*5"Jh@  
    80% >       0.22748071               ='JX_U`A^F  
    50% >       0.38667627               )} #r"!  
    20% >       0.46553746               "D k:r/  
    10% >       0.50064115                2 g8PU$T  
    hB.dqv]^  
    End of Run. Ya. $x~  
    [Vf|4xcD  
    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 'IP!)DS  
    B';Ob  
    qb<gh D=j  
    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 :d#NnR0^L  
    }Q=Zqlvz  
    不吝赐教
     
    分享到
    在线sansummer
    发帖
    959
    光币
    1087
    光券
    1
    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?
    在线sansummer
    发帖
    959
    光币
    1087
    光券
    1
    只看该作者 2楼 发表于: 2011-06-22
    90% >       0.20977951                 O2G+ '  
    80% >       0.22748071                 R}>Do=hAO  
    50% >       0.38667627                 :t qjm:  
    20% >       0.46553746                 `9+EhP$RS  
    10% >       0.50064115 6{ Nbe=  
    1I`D$Xq~:  
    最后这个数值是MTF值呢,还是MTF的公差? ,ln uu  
    j r[~  
    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???   C\^K6,m5  
    rd)) H  
    怎么没人啊,大家讨论讨论吗
    在线sansummer
    发帖
    959
    光币
    1087
    光券
    1
    只看该作者 3楼 发表于: 2011-06-23
    没有人啊???
    离线天地大同
    发帖
    295
    光币
    1899
    光券
    0
    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  : u)`|q_y+8  
    90% >       0.20977951                 x7Rq|NQ  
    80% >       0.22748071                 !X%!7wsc  
    50% >       0.38667627                 +?Jk@lE<  
    20% >       0.46553746                 s~Wu0%])Q  
    10% >       0.50064115 1qj%a%R  
    ....... qTHg[sME  
    urXb!e{l  
    CS5jJi"pD3  
    这些数值都是MTF值
    离线天地大同
    发帖
    295
    光币
    1899
    光券
    0
    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   r(1pvcWY-  
    Mode                : Sensitivities 39T&c85  
    Sampling            : 2 >\7RIy3  
    Nominal Criterion   : 0.54403234 jaO#><f  
    Test Wavelength     : 0.6328 OpbT63@L  
    *KjVPs  
    波长632.8nm 时 mtf 是 0.54403234  没达到0.6
    在线sansummer
    发帖
    959
    光币
    1087
    光券
    1
    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? Eo { 1y  
    KSgQ:_u4}  
    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?
    离线天地大同
    发帖
    295
    光币
    1899
    光券
    0
    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
    在线sansummer
    发帖
    959
    光币
    1087
    光券
    1
    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?
    离线天地大同
    发帖
    295
    光币
    1899
    光券
    0
    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