切换到宽版
  • 广告投放
  • 稿件投递
  • 繁體中文
    • 15206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
    离线sansummer
     
    发帖
    957
    光币
    1067
    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 Q5T(nEA  
    " V/k<HRw  
    PJ6$);9}6  
    fcn_<Yh0W  
    然后添加了默认公差分析,基本没变 L]a|vp  
    L`JY4JM"  
    *q[^Q'jnN  
    %$\}z( G  
    然后运行分析的结果如下: ?xf~!D  
    `v<f}  
    Analysis of Tolerances QJ6f EV$~  
    B4 <_"0  
    File : E:\光学设计资料\zemax练习\f500.ZMX ~vkud+r  
    Title: $$/S8LmmK  
    Date : TUE JUN 21 2011 "vvFq ,c  
    tl2Lq0  
    Units are Millimeters. vkh;qPD  
    All changes are computed using linear differences. L7[X|zmy*x  
     aeQ{_SK  
    Paraxial Focus compensation only. ),z,LU Yf  
    <6gU2@1  
    WARNING: Solves should be removed prior to tolerancing. s>V*=#L  
    8Q +TE;  
    Mnemonics: :nTkg[49pJ  
    TFRN: Tolerance on curvature in fringes. *Y^5M"AB_  
    TTHI: Tolerance on thickness. CVi<~7Am\  
    TSDX: Tolerance on surface decentering in x. MEDskvBG  
    TSDY: Tolerance on surface decentering in y. CcbWW4 )  
    TSTX: Tolerance on surface tilt in x (degrees). KS8\F0q  
    TSTY: Tolerance on surface tilt in y (degrees). c '/2F0y  
    TIRR: Tolerance on irregularity (fringes). \y<+Fac1S  
    TIND: Tolerance on Nd index of refraction. r]xdhR5  
    TEDX: Tolerance on element decentering in x. baA HP "  
    TEDY: Tolerance on element decentering in y. "P9wT)J_  
    TETX: Tolerance on element tilt in x (degrees).  z, :+Oc  
    TETY: Tolerance on element tilt in y (degrees). ]q@rGD85K  
    s; ~J2h[  
    WARNING: RAY AIMING IS OFF. Very loose tolerances may not be computed accurately. x Xl$Mp7  
    d8 3+6d  
    WARNING: Boundary constraints on compensators will be ignored. p3i qW,[@  
    P2s^=J0@  
    Criterion           : Geometric MTF average S&T at 30.0000 cycles per mm 6S` ,j  
    Mode                : Sensitivities 8j({=xbg&  
    Sampling            : 2 kemr@_  
    Nominal Criterion   : 0.54403234 !NQf< ch  
    Test Wavelength     : 0.6328 P1vF{e  
    0^_)OsFA  
    t(Cq(.u`:  
    Fields: XY Symmetric Angle in degrees a?f5(qW3  
    #      X-Field      Y-Field       Weight    VDX    VDY    VCX    VCY r5<e}t-  
    1   0.000E+000   0.000E+000   1.000E+000  0.000  0.000  0.000  0.000 ]&; G\9$y  
    = D;UMSf  
    Sensitivity Analysis: xNkwTDN5  
    .'+|>6eU  
                     |----------------- Minimum ----------------| |----------------- Maximum ----------------| *&~sr  
    Type                      Value      Criterion        Change          Value      Criterion        Change s7X~OF(#  
    Fringe tolerance on surface 1 CgaB)`.  
    TFRN   1            -1.00000000     0.54257256    -0.00145977     1.00000000     0.54548607     0.00145374 :5n"N5Go  
    Change in Focus                :      -0.000000                            0.000000 RJ7/I/yD|  
    Fringe tolerance on surface 2  $Adp  
    TFRN   2            -1.00000000     0.54177471    -0.00225762     1.00000000     0.54627463     0.00224230 mDe+ M {/  
    Change in Focus                :       0.000000                            0.000000 \^^hG5f  
    Fringe tolerance on surface 3 ;Ln7_  
    TFRN   3            -1.00000000     0.54779866     0.00376632     1.00000000     0.54022572    -0.00380662 r A&#>R`  
    Change in Focus                :      -0.000000                            0.000000 KD<; ?oN<O  
    Thickness tolerance on surface 1 5Rt0h$_J  
    TTHI   1   3        -0.20000000     0.54321462    -0.00081772     0.20000000     0.54484759     0.00081525 EUYa =-  
    Change in Focus                :       0.000000                            0.000000 cnjj) c  
    Thickness tolerance on surface 2 RF\1.HJG  
    TTHI   2   3        -0.20000000     0.54478712     0.00075478     0.20000000     0.54327558    -0.00075675 yQQDGFTb!=  
    Change in Focus                :       0.000000                           -0.000000 2e D\_IW  
    Decenter X tolerance on surfaces 1 through 3 y("0Xve  
    TEDX   1   3        -0.20000000     0.54401464   -1.7700E-005     0.20000000     0.54401464   -1.7700E-005 'KIi!pA.  
    Change in Focus                :       0.000000                            0.000000 _|Kv~\G!  
    Decenter Y tolerance on surfaces 1 through 3 Z-;uzx  
    TEDY   1   3        -0.20000000     0.54401464   -1.7700E-005     0.20000000     0.54401464   -1.7700E-005 4<K ,w{I  
    Change in Focus                :       0.000000                            0.000000 eG2qOq$[  
    Tilt X tolerance on surfaces 1 through 3 (degrees) Rh-8//&vZ/  
    TETX   1   3        -0.20000000     0.54897548     0.00494314     0.20000000     0.54897548     0.00494314 %<#$:Qb.  
    Change in Focus                :       0.000000                            0.000000 IbNTdg]/F`  
    Tilt Y tolerance on surfaces 1 through 3 (degrees) <LA`PbQa  
    TETY   1   3        -0.20000000     0.54897548     0.00494314     0.20000000     0.54897548     0.00494314 m@ 'I|!^  
    Change in Focus                :       0.000000                            0.000000 7 +W?Qo  
    Decenter X tolerance on surface 1 +#*z"a`  
    TSDX   1            -0.20000000     0.53999563    -0.00403671     0.20000000     0.53999563    -0.00403671 qytGs@p_  
    Change in Focus                :       0.000000                            0.000000 H?r;S 5)c  
    Decenter Y tolerance on surface 1 J\8l%4q3  
    TSDY   1            -0.20000000     0.53999563    -0.00403671     0.20000000     0.53999563    -0.00403671 '<E8< bi  
    Change in Focus                :       0.000000                            0.000000 RX<^MzCDV  
    Tilt X tolerance on surface (degrees) 1 MZ+IorZl  
    TSTX   1            -0.20000000     0.42678383    -0.11724851     0.20000000     0.42678383    -0.11724851 SO jDtZ  
    Change in Focus                :       0.000000                            0.000000 }_D5, k  
    Tilt Y tolerance on surface (degrees) 1 (NWN&  
    TSTY   1            -0.20000000     0.42678383    -0.11724851     0.20000000     0.42678383    -0.11724851 T4, Zc  
    Change in Focus                :       0.000000                            0.000000  ( Vv[  
    Decenter X tolerance on surface 2 \?ws0Ax  
    TSDX   2            -0.20000000     0.51705427    -0.02697807     0.20000000     0.51705427    -0.02697807 p<nBS" /  
    Change in Focus                :       0.000000                            0.000000 Q Fqv,B\<  
    Decenter Y tolerance on surface 2 %D6Wlf+^n  
    TSDY   2            -0.20000000     0.51705427    -0.02697807     0.20000000     0.51705427    -0.02697807 h.+&=s!Nsy  
    Change in Focus                :       0.000000                            0.000000 F'_8pD7  
    Tilt X tolerance on surface (degrees) 2 <TROs!x$a  
    TSTX   2            -0.20000000     0.35349910    -0.19053324     0.20000000     0.35349910    -0.19053324 HG 6{`i  
    Change in Focus                :       0.000000                            0.000000 u2\qg;dP  
    Tilt Y tolerance on surface (degrees) 2 |JQP7z6j]  
    TSTY   2            -0.20000000     0.35349910    -0.19053324     0.20000000     0.35349910    -0.19053324 <"Cwy0V kp  
    Change in Focus                :       0.000000                            0.000000 3jdB8a]T_  
    Decenter X tolerance on surface 3 ?GfA;O  
    TSDX   3            -0.20000000     0.53419039    -0.00984195     0.20000000     0.53419039    -0.00984195 JfINAaboi  
    Change in Focus                :       0.000000                            0.000000 $0C/S5b  
    Decenter Y tolerance on surface 3 *A9{H>Vq  
    TSDY   3            -0.20000000     0.53419039    -0.00984195     0.20000000     0.53419039    -0.00984195 3#ZKuGg=  
    Change in Focus                :       0.000000                            0.000000 n&78~@H  
    Tilt X tolerance on surface (degrees) 3 _89G2)U=C  
    TSTX   3            -0.20000000     0.42861670    -0.11541563     0.20000000     0.42861670    -0.11541563 $u.T1v  
    Change in Focus                :       0.000000                            0.000000 : MmXH&yR  
    Tilt Y tolerance on surface (degrees) 3 t-'GRme  
    TSTY   3            -0.20000000     0.42861670    -0.11541563     0.20000000     0.42861670    -0.11541563 m%(JRh  
    Change in Focus                :       0.000000                            0.000000 nMvIL2:3  
    Irregularity of surface 1 in fringes v#2qwd3x  
    TIRR   1            -0.20000000     0.50973587    -0.03429647     0.20000000     0.57333868     0.02930634 9wJmX<Rm  
    Change in Focus                :       0.000000                            0.000000 U8Jj(]},_  
    Irregularity of surface 2 in fringes tU2;Wb!Y  
    TIRR   2            -0.20000000     0.53400904    -0.01002330     0.20000000     0.55360281     0.00957047 y#0Z[[I0  
    Change in Focus                :       0.000000                            0.000000 j1CD;9i)%  
    Irregularity of surface 3 in fringes e Em0c]]9  
    TIRR   3            -0.20000000     0.58078982     0.03675748     0.20000000     0.49904394    -0.04498840 %}5"5\Zz  
    Change in Focus                :       0.000000                            0.000000 _~q^YZ  
    Index tolerance on surface 1 )Nd:PnA  
    TIND   1            -0.00100000     0.52606778    -0.01796456     0.00100000     0.56121811     0.01718578 EUS]Se2  
    Change in Focus                :       0.000000                            0.000000 RSeezP6#  
    Index tolerance on surface 2 0J-ux"kfI  
    TIND   2            -0.00100000     0.55639086     0.01235852     0.00100000     0.53126361    -0.01276872 %,q#f#  
    Change in Focus                :       0.000000                           -0.000000 >A "aOV>K  
    ul&7hHp_u%  
    Worst offenders: C:EoUu  
    Type                      Value      Criterion        Change 54j $A  
    TSTY   2            -0.20000000     0.35349910    -0.19053324 \> dG'  
    TSTY   2             0.20000000     0.35349910    -0.19053324 5DUPsV  
    TSTX   2            -0.20000000     0.35349910    -0.19053324 HUI!IOh  
    TSTX   2             0.20000000     0.35349910    -0.19053324 HliY  
    TSTY   1            -0.20000000     0.42678383    -0.11724851 mpAh'f4$*  
    TSTY   1             0.20000000     0.42678383    -0.11724851 :6iq{XV^  
    TSTX   1            -0.20000000     0.42678383    -0.11724851 m:7bynT{  
    TSTX   1             0.20000000     0.42678383    -0.11724851 x G"p .  
    TSTY   3            -0.20000000     0.42861670    -0.11541563 % 7:  
    TSTY   3             0.20000000     0.42861670    -0.11541563 XArLL5_L  
    P#1y  
    Estimated Performance Changes based upon Root-Sum-Square method: En_8H[<%  
    Nominal MTF                 :     0.54403234 eajL[W^>  
    Estimated change            :    -0.36299231 #(4hX6?5AI  
    Estimated MTF               :     0.18104003 Gukq}ZQd  
    u)MA#p {  
    Compensator Statistics: b#^D8_9h  
    Change in back focus: t\0JNi$2  
    Minimum            :        -0.000000 t!N >0]:mo  
    Maximum            :         0.000000 u8=|{)yL  
    Mean               :        -0.000000 emO!6]0gJ  
    Standard Deviation :         0.000000 u%'22q$  
    g8y Zc}4  
    Monte Carlo Analysis: \bE~iz3b9  
    Number of trials: 20 xGPv3TLH^  
    x B[# a*  
    Initial Statistics: Normal Distribution #2=30  
    h {btT  
      Trial       Criterion        Change K)Ka"H  
          1     0.42804416    -0.11598818 PxY"{-iAM  
    Change in Focus                :      -0.400171 $a1.c;NE'  
          2     0.54384387    -0.00018847 }]@ "t)"  
    Change in Focus                :       1.018470 Hc!_o`[{l  
          3     0.44510003    -0.09893230 $5O&[/L  
    Change in Focus                :      -0.601922 ?-i&6i6Y  
          4     0.18154684    -0.36248550 9r}} m0  
    Change in Focus                :       0.920681 7T78S&g  
          5     0.28665820    -0.25737414 JH9CN  
    Change in Focus                :       1.253875 tO$M[P=b  
          6     0.21263372    -0.33139862 !;oBvE7Kh  
    Change in Focus                :      -0.903878 $^F2  
          7     0.40051424    -0.14351809 i ib-\j4d  
    Change in Focus                :      -1.354815 kY&j~R[C  
          8     0.48754161    -0.05649072 C%h_!z":  
    Change in Focus                :       0.215922 iLei-\w6y  
          9     0.40357468    -0.14045766 I.x>mN -0  
    Change in Focus                :       0.281783 p};<l@  
         10     0.26315315    -0.28087919 5O*$#C;c  
    Change in Focus                :      -1.048393 qr1^i1%\  
         11     0.26120585    -0.28282649 IYPI5qCR  
    Change in Focus                :       1.017611 )^AO?MW  
         12     0.24033815    -0.30369419 xNU}uW>>T  
    Change in Focus                :      -0.109292 >d |W>|8e  
         13     0.37164046    -0.17239188 =s<QN*zJB0  
    Change in Focus                :      -0.692430 IFe[3mB5  
         14     0.48597489    -0.05805744 _1QNO#X  
    Change in Focus                :      -0.662040 bcg)K`'N  
         15     0.21462327    -0.32940907 JM0)x}] +  
    Change in Focus                :       1.611296 IAQ=d4V&  
         16     0.43378226    -0.11025008 ,;;~dfHm  
    Change in Focus                :      -0.640081 pK%'S  
         17     0.39321881    -0.15081353 [a2/`ywdV  
    Change in Focus                :       0.914906 }z6HxB]$  
         18     0.20692530    -0.33710703 ZO}*^  
    Change in Focus                :       0.801607 $onliW|  
         19     0.51374068    -0.03029165 ?IWS  
    Change in Focus                :       0.947293 dx#N)?  
         20     0.38013374    -0.16389860 6$Y1[  
    Change in Focus                :       0.667010 7Uh}|6PU  
    X^`ld&^*({  
    Number of traceable Monte Carlo files generated: 20 ~Km8 -b(&  
    W\/0&H\i  
    Nominal     0.54403234 x.aUuC,$x  
    Best        0.54384387    Trial     2 Mmn[ol  
    Worst       0.18154684    Trial     4 `*B8IT)  
    Mean        0.35770970 j"]%6RwM]  
    Std Dev     0.11156454 ;6Z?O_zp4  
    |?8wyP  
    Wl{Vz  
    Compensator Statistics: ?k-IS5G  
    Change in back focus: gNJ\*]SY  
    Minimum            :        -1.354815 QLn5:&  
    Maximum            :         1.611296 UqH7ec  
    Mean               :         0.161872 Pj$a$C`Z  
    Standard Deviation :         0.869664 *)Y;`Yg$  
    BFY~::<b  
    90% >       0.20977951               5|Uub ,  
    80% >       0.22748071               W cnYD)  
    50% >       0.38667627               6 J#C  
    20% >       0.46553746               ZD*>i=S  
    10% >       0.50064115                c?|/c9f  
    a v/=x  
    End of Run. ^^Y0 \3.  
    cIH`,bR  
    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 '7$v@Tvnre  
     /YHeO  
    m1TPy-|1  
    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 }k%>%xQ.  
    6eb5q/  
    不吝赐教
     
    分享到
    离线sansummer
    发帖
    957
    光币
    1067
    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?
    离线sansummer
    发帖
    957
    光币
    1067
    光券
    1
    只看该作者 2楼 发表于: 2011-06-22
    90% >       0.20977951                 luV%_[F  
    80% >       0.22748071                 am`eist:  
    50% >       0.38667627                 L%fWa2P'  
    20% >       0.46553746                 }D0j%~&"e  
    10% >       0.50064115 z%b3/rx  
    a"~W1|JC"  
    最后这个数值是MTF值呢,还是MTF的公差? z8A`BVqI  
    ow+NT  
    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???   h1,J<B@  
    Y~Zg^x2  
    怎么没人啊,大家讨论讨论吗
    离线sansummer
    发帖
    957
    光币
    1067
    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
    1895
    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  : ("wPkm^  
    90% >       0.20977951                 |(Io(e  
    80% >       0.22748071                 BYP,}yzA  
    50% >       0.38667627                 ?^0#:QevC  
    20% >       0.46553746                 -H{c@hl  
    10% >       0.50064115 m&b!\"0  
    ....... ptYQP^6S[  
    L2AZ0E"ub  
    [96|xe\s  
    这些数值都是MTF值
    离线天地大同
    发帖
    295
    光币
    1895
    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   O zY&^:>  
    Mode                : Sensitivities %F1 Ce/  
    Sampling            : 2 w9l)=[s=  
    Nominal Criterion   : 0.54403234 xs+MvXTC  
    Test Wavelength     : 0.6328 (T!Q  
    n+j'FfSz  
    波长632.8nm 时 mtf 是 0.54403234  没达到0.6
    离线sansummer
    发帖
    957
    光币
    1067
    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? Y M/^-[k3  
    =A GsW  
    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
    1895
    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
    离线sansummer
    发帖
    957
    光币
    1067
    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
    1895
    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