切换到宽版
  • 广告投放
  • 稿件投递
  • 繁體中文
    • 16557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 t[0gN:s  
    Rz%+E0  
    <BT}Tv9  
    MheP@ [w|@  
    然后添加了默认公差分析,基本没变 [ tm J6^s  
    "TG}aS  
    h.G/HHz  
    qDL9  
    然后运行分析的结果如下: K]Ed-Tz8QZ  
    d94Lc-kq^  
    Analysis of Tolerances Q<Utwk?nL  
    >5)$Qtz#  
    File : E:\光学设计资料\zemax练习\f500.ZMX M(SH3~  
    Title: c1!h;(&  
    Date : TUE JUN 21 2011 Q>= :$I  
    \$GlB+ iCx  
    Units are Millimeters. '6[0NuB  
    All changes are computed using linear differences. \vojF\  
    :C>slxY  
    Paraxial Focus compensation only. mWCY%o@  
    bi[vs|  
    WARNING: Solves should be removed prior to tolerancing. Z*x Q"+\  
    o{nBtxZ"  
    Mnemonics: YV 2T$#7u  
    TFRN: Tolerance on curvature in fringes. qKZ~)B j  
    TTHI: Tolerance on thickness. ZShRE"`  
    TSDX: Tolerance on surface decentering in x. ANi}q9SC  
    TSDY: Tolerance on surface decentering in y. ,in`JM<o  
    TSTX: Tolerance on surface tilt in x (degrees). $)z(4Ev  
    TSTY: Tolerance on surface tilt in y (degrees). jSpmE  
    TIRR: Tolerance on irregularity (fringes). <5?.S{Z9  
    TIND: Tolerance on Nd index of refraction. 3S +.]v>  
    TEDX: Tolerance on element decentering in x. MhWmY[  
    TEDY: Tolerance on element decentering in y. (4x`/  
    TETX: Tolerance on element tilt in x (degrees). oTT/;~I  
    TETY: Tolerance on element tilt in y (degrees). "J3@Z,qW  
    zc\e$M O  
    WARNING: RAY AIMING IS OFF. Very loose tolerances may not be computed accurately. )Q&:$]  
    q>o1kTI  
    WARNING: Boundary constraints on compensators will be ignored. Fdzs Wm  
    mp>,TOi~s7  
    Criterion           : Geometric MTF average S&T at 30.0000 cycles per mm 6# ,2  
    Mode                : Sensitivities dI{)^  
    Sampling            : 2 $x#Y\dpS  
    Nominal Criterion   : 0.54403234 fg^$F9@  
    Test Wavelength     : 0.6328 ebp18_a|  
    8v5cQ5Lc  
    .G4(Ryh  
    Fields: XY Symmetric Angle in degrees cZPv6c_w  
    #      X-Field      Y-Field       Weight    VDX    VDY    VCX    VCY ?%{v1(  
    1   0.000E+000   0.000E+000   1.000E+000  0.000  0.000  0.000  0.000 gb( a`  
    ,*wa#[  
    Sensitivity Analysis: [N'YFb3"O  
    `o)rAD^e  
                     |----------------- Minimum ----------------| |----------------- Maximum ----------------| rAM{<  
    Type                      Value      Criterion        Change          Value      Criterion        Change _cQTQ  
    Fringe tolerance on surface 1 cxp>4[gH  
    TFRN   1            -1.00000000     0.54257256    -0.00145977     1.00000000     0.54548607     0.00145374 6;"jq92in*  
    Change in Focus                :      -0.000000                            0.000000 &r;-=ASYzV  
    Fringe tolerance on surface 2 )Gh"(]-<  
    TFRN   2            -1.00000000     0.54177471    -0.00225762     1.00000000     0.54627463     0.00224230 ` XE8[XY  
    Change in Focus                :       0.000000                            0.000000 4D0=3Vy  
    Fringe tolerance on surface 3 ofC=S$wX  
    TFRN   3            -1.00000000     0.54779866     0.00376632     1.00000000     0.54022572    -0.00380662 S[n ;u-U  
    Change in Focus                :      -0.000000                            0.000000 B_aLqB]U  
    Thickness tolerance on surface 1 OB.TAoH:  
    TTHI   1   3        -0.20000000     0.54321462    -0.00081772     0.20000000     0.54484759     0.00081525 xi %u)p  
    Change in Focus                :       0.000000                            0.000000 ncuqo'r  
    Thickness tolerance on surface 2 i<m1^a#C'  
    TTHI   2   3        -0.20000000     0.54478712     0.00075478     0.20000000     0.54327558    -0.00075675 a;r,*zZ="  
    Change in Focus                :       0.000000                           -0.000000 @6~r7/WD  
    Decenter X tolerance on surfaces 1 through 3 &$:1rA_v  
    TEDX   1   3        -0.20000000     0.54401464   -1.7700E-005     0.20000000     0.54401464   -1.7700E-005 xRuAt/aC  
    Change in Focus                :       0.000000                            0.000000 { r yv7G  
    Decenter Y tolerance on surfaces 1 through 3 96fbMP+7R  
    TEDY   1   3        -0.20000000     0.54401464   -1.7700E-005     0.20000000     0.54401464   -1.7700E-005 fb0i6RC~&  
    Change in Focus                :       0.000000                            0.000000 "eA4JL\%)  
    Tilt X tolerance on surfaces 1 through 3 (degrees) yM`J+tq  
    TETX   1   3        -0.20000000     0.54897548     0.00494314     0.20000000     0.54897548     0.00494314 PJ5~,4H-4  
    Change in Focus                :       0.000000                            0.000000 K -cRNt  
    Tilt Y tolerance on surfaces 1 through 3 (degrees) g\[?U9qN  
    TETY   1   3        -0.20000000     0.54897548     0.00494314     0.20000000     0.54897548     0.00494314 | :7O  
    Change in Focus                :       0.000000                            0.000000 \fj* .[,  
    Decenter X tolerance on surface 1 7_xQa$U[  
    TSDX   1            -0.20000000     0.53999563    -0.00403671     0.20000000     0.53999563    -0.00403671 7O',X Y  
    Change in Focus                :       0.000000                            0.000000 =]X_wA;%  
    Decenter Y tolerance on surface 1 e`27 ?  
    TSDY   1            -0.20000000     0.53999563    -0.00403671     0.20000000     0.53999563    -0.00403671 0<d9al|J  
    Change in Focus                :       0.000000                            0.000000 V+G.TI P  
    Tilt X tolerance on surface (degrees) 1 gY9HEfB  
    TSTX   1            -0.20000000     0.42678383    -0.11724851     0.20000000     0.42678383    -0.11724851 _r@ FWUZ  
    Change in Focus                :       0.000000                            0.000000 He @d~9M  
    Tilt Y tolerance on surface (degrees) 1 E4idEQ}H  
    TSTY   1            -0.20000000     0.42678383    -0.11724851     0.20000000     0.42678383    -0.11724851 $Y& 8@/L  
    Change in Focus                :       0.000000                            0.000000 D"UCe7  
    Decenter X tolerance on surface 2 &Azfpv   
    TSDX   2            -0.20000000     0.51705427    -0.02697807     0.20000000     0.51705427    -0.02697807 1U[Q)(P  
    Change in Focus                :       0.000000                            0.000000 W@Et  
    Decenter Y tolerance on surface 2 xn|M]E1)  
    TSDY   2            -0.20000000     0.51705427    -0.02697807     0.20000000     0.51705427    -0.02697807 OMgFp|^  
    Change in Focus                :       0.000000                            0.000000 $o2H#"  
    Tilt X tolerance on surface (degrees) 2 m?G@#[ l  
    TSTX   2            -0.20000000     0.35349910    -0.19053324     0.20000000     0.35349910    -0.19053324 .dM4B'OA?  
    Change in Focus                :       0.000000                            0.000000 fhp\of/@ R  
    Tilt Y tolerance on surface (degrees) 2 >|Yr14?7  
    TSTY   2            -0.20000000     0.35349910    -0.19053324     0.20000000     0.35349910    -0.19053324 V9  Z  
    Change in Focus                :       0.000000                            0.000000 zmaf@T  
    Decenter X tolerance on surface 3 WD.td  
    TSDX   3            -0.20000000     0.53419039    -0.00984195     0.20000000     0.53419039    -0.00984195 'b1k0 9'  
    Change in Focus                :       0.000000                            0.000000 >d2U=Yk!  
    Decenter Y tolerance on surface 3 *f<+yF{=A  
    TSDY   3            -0.20000000     0.53419039    -0.00984195     0.20000000     0.53419039    -0.00984195 Z'=:Bo{  
    Change in Focus                :       0.000000                            0.000000 c"F3[mrff  
    Tilt X tolerance on surface (degrees) 3 t*J *?Ma  
    TSTX   3            -0.20000000     0.42861670    -0.11541563     0.20000000     0.42861670    -0.11541563 "Bn8WT2?  
    Change in Focus                :       0.000000                            0.000000 m ioNMDG  
    Tilt Y tolerance on surface (degrees) 3 2aj9:S  
    TSTY   3            -0.20000000     0.42861670    -0.11541563     0.20000000     0.42861670    -0.11541563 w1>uD]  
    Change in Focus                :       0.000000                            0.000000 &gGh%:`B  
    Irregularity of surface 1 in fringes 9vX~gh{]~  
    TIRR   1            -0.20000000     0.50973587    -0.03429647     0.20000000     0.57333868     0.02930634 A><w1-X&=o  
    Change in Focus                :       0.000000                            0.000000 @s7ZfV??  
    Irregularity of surface 2 in fringes P?WS=w*O0  
    TIRR   2            -0.20000000     0.53400904    -0.01002330     0.20000000     0.55360281     0.00957047 f0!i<9<  
    Change in Focus                :       0.000000                            0.000000 !g|)?XWc  
    Irregularity of surface 3 in fringes R(.5Hs  
    TIRR   3            -0.20000000     0.58078982     0.03675748     0.20000000     0.49904394    -0.04498840 f)'m pp^  
    Change in Focus                :       0.000000                            0.000000 ^/c v8M=  
    Index tolerance on surface 1 my1FW,3  
    TIND   1            -0.00100000     0.52606778    -0.01796456     0.00100000     0.56121811     0.01718578 K9 G1>*  
    Change in Focus                :       0.000000                            0.000000 g_8A1lt  
    Index tolerance on surface 2 LeP;HP|  
    TIND   2            -0.00100000     0.55639086     0.01235852     0.00100000     0.53126361    -0.01276872 ZRCm'p3  
    Change in Focus                :       0.000000                           -0.000000 o,(]w kF  
    <?8 aM7W7  
    Worst offenders: yzI`&? P2  
    Type                      Value      Criterion        Change ^qR2!fwm<  
    TSTY   2            -0.20000000     0.35349910    -0.19053324 *.F^`]yz  
    TSTY   2             0.20000000     0.35349910    -0.19053324 4{zz-4=  
    TSTX   2            -0.20000000     0.35349910    -0.19053324 NAg9EaWja{  
    TSTX   2             0.20000000     0.35349910    -0.19053324 ;zF3e&e(  
    TSTY   1            -0.20000000     0.42678383    -0.11724851 o*5iHa(Qm  
    TSTY   1             0.20000000     0.42678383    -0.11724851 E!Ljq3iT`  
    TSTX   1            -0.20000000     0.42678383    -0.11724851 A  [c1E[  
    TSTX   1             0.20000000     0.42678383    -0.11724851 p<[gzmU9\b  
    TSTY   3            -0.20000000     0.42861670    -0.11541563 kMS&"/z  
    TSTY   3             0.20000000     0.42861670    -0.11541563 Po B-:G6  
    !{S& "  
    Estimated Performance Changes based upon Root-Sum-Square method: Xg4i H5!E  
    Nominal MTF                 :     0.54403234 :o"9x,  
    Estimated change            :    -0.36299231 ]0dj##5tJ  
    Estimated MTF               :     0.18104003 t@"i/@8x$  
    THN/ /}d  
    Compensator Statistics: ,;D$d#\"  
    Change in back focus: =%=lq0GF0  
    Minimum            :        -0.000000 1U?,}w   
    Maximum            :         0.000000 Py72:;wn  
    Mean               :        -0.000000 fex<9'e  
    Standard Deviation :         0.000000 Bz+zEXBC  
    'zo] f  
    Monte Carlo Analysis: ojva~mnFf  
    Number of trials: 20 _/c1b>kcso  
    kN~:Bh$  
    Initial Statistics: Normal Distribution aTWCX${~b  
    xCTPsw]s  
      Trial       Criterion        Change [C-4*qOaa2  
          1     0.42804416    -0.11598818 fFe{oR   
    Change in Focus                :      -0.400171 |d)*,O4s  
          2     0.54384387    -0.00018847 ;n\$'"K&;  
    Change in Focus                :       1.018470 rWMG6+Scb  
          3     0.44510003    -0.09893230 1-=ZIHW  
    Change in Focus                :      -0.601922 Y W9+.Dc`  
          4     0.18154684    -0.36248550 jL6ZHEi#d7  
    Change in Focus                :       0.920681 iVSN>APe  
          5     0.28665820    -0.25737414 :5W8S6[o  
    Change in Focus                :       1.253875 t@vVE{`  
          6     0.21263372    -0.33139862 G(;hJ'LT  
    Change in Focus                :      -0.903878 `qs[a}%'>"  
          7     0.40051424    -0.14351809 qG)M8xk  
    Change in Focus                :      -1.354815 qP k`e}D  
          8     0.48754161    -0.05649072 ^0tO2$  
    Change in Focus                :       0.215922 7TU(~]Z  
          9     0.40357468    -0.14045766 \?_M_5Nb  
    Change in Focus                :       0.281783 e0z(l/UB  
         10     0.26315315    -0.28087919 @{q:179w^  
    Change in Focus                :      -1.048393 7cQFH@SC  
         11     0.26120585    -0.28282649 ~W..P:wG5  
    Change in Focus                :       1.017611 om oD +  
         12     0.24033815    -0.30369419 .+ d.~jHX  
    Change in Focus                :      -0.109292 ]#sF pWI[N  
         13     0.37164046    -0.17239188 nRHxbE}::  
    Change in Focus                :      -0.692430 =pk5'hBAi  
         14     0.48597489    -0.05805744 +5i~}Q!  
    Change in Focus                :      -0.662040 FQh8(^(  
         15     0.21462327    -0.32940907 Z#NEa.]  
    Change in Focus                :       1.611296 :9~LYJ ?  
         16     0.43378226    -0.11025008  DJJd_  
    Change in Focus                :      -0.640081 1@:BUE;jZ  
         17     0.39321881    -0.15081353 ss0`9:z  
    Change in Focus                :       0.914906 `k.0d`3(  
         18     0.20692530    -0.33710703 UFzC8  
    Change in Focus                :       0.801607 /6{P ?)]pE  
         19     0.51374068    -0.03029165 93VbB[w~7F  
    Change in Focus                :       0.947293 OpD%lRl  
         20     0.38013374    -0.16389860 ,CxIA^  
    Change in Focus                :       0.667010 @#QaaR;4  
    5HC5   
    Number of traceable Monte Carlo files generated: 20 RRUv_sff  
    "&%Lhyt  
    Nominal     0.54403234 wTe 9OFv  
    Best        0.54384387    Trial     2 ty\F~]Oo  
    Worst       0.18154684    Trial     4 *!r"+?0gN  
    Mean        0.35770970 #ZyY(S1.  
    Std Dev     0.11156454 nKnQ%R  
    5ktFL<^5T  
    !O 0{ .k  
    Compensator Statistics: J3QL%#  
    Change in back focus: :|a$[g5  
    Minimum            :        -1.354815 N`J]k B7  
    Maximum            :         1.611296 XGb*LY+Db6  
    Mean               :         0.161872 4DgH/Yo  
    Standard Deviation :         0.869664 {\vcwMUzZ  
    D k<NlH zp  
    90% >       0.20977951               eq(1'?7]`G  
    80% >       0.22748071               hw({>cH\  
    50% >       0.38667627               v\2- %  
    20% >       0.46553746               QV[#^1  
    10% >       0.50064115                $d*PY_  
    *X /i<  
    End of Run. <nU8.?\?~  
    | Di7 ,$c  
    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 cV4]Y(9  
    }2hU7YWt  
    kx,3[qe'S  
    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 %n^ugm0B  
    0uu)0:  
    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                 h_Ssm{C\  
    80% >       0.22748071                 z.|[g$F  
    50% >       0.38667627                 pVM1%n:#  
    20% >       0.46553746                 :F_>`{  
    10% >       0.50064115 rZ&li/Z  
    WfHa  
    最后这个数值是MTF值呢,还是MTF的公差? LYr9a(  
    ,Jx.Kj.,  
    也就是说,这到底是有90%的产品MTF大于0.20977951还是90%的产品的MTF变化量大于0.20977951???   U|<>xe*|%  
    A;k#8&;  
    怎么没人啊,大家讨论讨论吗
    在线sansummer
    发帖
    959
    光币
    1087
    光券
    1
    只看该作者 3楼 发表于: 2011-06-23
    没有人啊???
    离线天地大同
    发帖
    295
    光币
    1899
    光券
    0
    只看该作者 4楼 发表于: 2011-06-23
    引用第2楼sansummer于2011-06-22 08:56发表的  : k2fJ  
    90% >       0.20977951                 S(^YTb7  
    80% >       0.22748071                 /q8B | (U  
    50% >       0.38667627                 !? H:?  
    20% >       0.46553746                 R+!oPWfb  
    10% >       0.50064115 5s;@;V  
    ....... H=w6  
    4>2\{0r  
    ThkCKM  
    这些数值都是MTF值
    离线天地大同
    发帖
    295
    光币
    1899
    光券
    0
    只看该作者 5楼 发表于: 2011-06-23
    Criterion           : Geometric MTF average S&T at 30.0000 cycles per mm   %%I:L~c  
    Mode                : Sensitivities >;F}>_i  
    Sampling            : 2 J`C 2}$ ~  
    Nominal Criterion   : 0.54403234 s&+`>  
    Test Wavelength     : 0.6328 dcTZL$  
    /|#2ehE  
    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? I[gPW7&S@  
    c6=XJvz  
    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