切换到宽版
  • 广告投放
  • 稿件投递
  • 繁體中文
    • 16495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
    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 F^]?'`7md  
    ,T|%vqbmw  
    UT9=S21  
    69v[* InSd  
    然后添加了默认公差分析,基本没变 Dg LSDKO!  
    [[[QBplJ  
    ",ic" ~  
    FDAREE\j  
    然后运行分析的结果如下: _ z!0ab  
    q$Ol"K@  
    Analysis of Tolerances QJG]z'c+  
    UI4Xv  
    File : E:\光学设计资料\zemax练习\f500.ZMX 995^[c1o6  
    Title: y{eZrX|  
    Date : TUE JUN 21 2011 "Jp6EL%  
    Hf/2KYZ  
    Units are Millimeters. JAA P5ur  
    All changes are computed using linear differences. YJ5;a\QxN  
    Z6cG<,DQ  
    Paraxial Focus compensation only. rr[9sk`^H  
    !HXdUAKu  
    WARNING: Solves should be removed prior to tolerancing. 7<=7RPWmD  
    wBcDL/(>  
    Mnemonics: K6 ,5C0  
    TFRN: Tolerance on curvature in fringes. b* 6c.  
    TTHI: Tolerance on thickness. Lh &L5p7  
    TSDX: Tolerance on surface decentering in x. a<V=C  
    TSDY: Tolerance on surface decentering in y. azB~>#H~  
    TSTX: Tolerance on surface tilt in x (degrees). n#N<zC/  
    TSTY: Tolerance on surface tilt in y (degrees). rrSA.J{  
    TIRR: Tolerance on irregularity (fringes). fxLhVJ"b  
    TIND: Tolerance on Nd index of refraction. X/1Z9 a+W  
    TEDX: Tolerance on element decentering in x. s 8``U~D   
    TEDY: Tolerance on element decentering in y. !qH=l-7A  
    TETX: Tolerance on element tilt in x (degrees). rr4yJ;qpeP  
    TETY: Tolerance on element tilt in y (degrees). )_EobE\  
    $gZ|=(y&r  
    WARNING: RAY AIMING IS OFF. Very loose tolerances may not be computed accurately. mId{f  
    ji( S ?^  
    WARNING: Boundary constraints on compensators will be ignored. "VWxHRVg4M  
    e7L;{+XI  
    Criterion           : Geometric MTF average S&T at 30.0000 cycles per mm q9Y0Lk  
    Mode                : Sensitivities @fpxGMy&  
    Sampling            : 2 "0L@cOyG  
    Nominal Criterion   : 0.54403234 $^7 &bQ  
    Test Wavelength     : 0.6328 d*3R0Q|#{  
    i=2+1 ;K  
    $zCUQthL@  
    Fields: XY Symmetric Angle in degrees q0y?$XS  
    #      X-Field      Y-Field       Weight    VDX    VDY    VCX    VCY p,D/ Pb8  
    1   0.000E+000   0.000E+000   1.000E+000  0.000  0.000  0.000  0.000 2 ;B[n;Q{  
    U(./LrM05  
    Sensitivity Analysis: `p^M\!h*O  
    q#\eL~k  
                     |----------------- Minimum ----------------| |----------------- Maximum ----------------| Gz*U?R-T  
    Type                      Value      Criterion        Change          Value      Criterion        Change l!iB -?'u  
    Fringe tolerance on surface 1 72-@!Z0e  
    TFRN   1            -1.00000000     0.54257256    -0.00145977     1.00000000     0.54548607     0.00145374 &P ;6P4x  
    Change in Focus                :      -0.000000                            0.000000 >5 5/@+^  
    Fringe tolerance on surface 2 GW $iK@  
    TFRN   2            -1.00000000     0.54177471    -0.00225762     1.00000000     0.54627463     0.00224230 k5xirB_  
    Change in Focus                :       0.000000                            0.000000 g1J]z<&  
    Fringe tolerance on surface 3 QW2% Gv:  
    TFRN   3            -1.00000000     0.54779866     0.00376632     1.00000000     0.54022572    -0.00380662 ^U_jeAuk8[  
    Change in Focus                :      -0.000000                            0.000000 # |UrHK;  
    Thickness tolerance on surface 1 r9vC&pWZ  
    TTHI   1   3        -0.20000000     0.54321462    -0.00081772     0.20000000     0.54484759     0.00081525 DTIy/  
    Change in Focus                :       0.000000                            0.000000 _X.M,id  
    Thickness tolerance on surface 2 NM]6  o  
    TTHI   2   3        -0.20000000     0.54478712     0.00075478     0.20000000     0.54327558    -0.00075675 % 9WWBxS  
    Change in Focus                :       0.000000                           -0.000000 50H[u|  
    Decenter X tolerance on surfaces 1 through 3 sox 90o 7  
    TEDX   1   3        -0.20000000     0.54401464   -1.7700E-005     0.20000000     0.54401464   -1.7700E-005 %)aDh }  
    Change in Focus                :       0.000000                            0.000000 1g/mzC   
    Decenter Y tolerance on surfaces 1 through 3 5d4-95['_  
    TEDY   1   3        -0.20000000     0.54401464   -1.7700E-005     0.20000000     0.54401464   -1.7700E-005 2=3iA09px  
    Change in Focus                :       0.000000                            0.000000 <g%xo"  
    Tilt X tolerance on surfaces 1 through 3 (degrees) Y0hL_46>  
    TETX   1   3        -0.20000000     0.54897548     0.00494314     0.20000000     0.54897548     0.00494314 #-V Kk  
    Change in Focus                :       0.000000                            0.000000 :!A@B.E  
    Tilt Y tolerance on surfaces 1 through 3 (degrees) , zw  
    TETY   1   3        -0.20000000     0.54897548     0.00494314     0.20000000     0.54897548     0.00494314 zR<jZwo]#  
    Change in Focus                :       0.000000                            0.000000 "1#,d#Q$  
    Decenter X tolerance on surface 1 xjX5PQu  
    TSDX   1            -0.20000000     0.53999563    -0.00403671     0.20000000     0.53999563    -0.00403671 Aqm0|GlJ  
    Change in Focus                :       0.000000                            0.000000 Aio0++ r-  
    Decenter Y tolerance on surface 1 L]tyL)  
    TSDY   1            -0.20000000     0.53999563    -0.00403671     0.20000000     0.53999563    -0.00403671 uuC/F_='B  
    Change in Focus                :       0.000000                            0.000000 $Y4 Ao-@  
    Tilt X tolerance on surface (degrees) 1 [wOO)FjT  
    TSTX   1            -0.20000000     0.42678383    -0.11724851     0.20000000     0.42678383    -0.11724851 ?QMs<  
    Change in Focus                :       0.000000                            0.000000 !9N%=6\  
    Tilt Y tolerance on surface (degrees) 1 p{U8z\  
    TSTY   1            -0.20000000     0.42678383    -0.11724851     0.20000000     0.42678383    -0.11724851  :D/R  
    Change in Focus                :       0.000000                            0.000000 w\QpQ~OX  
    Decenter X tolerance on surface 2 4v?S` w:6  
    TSDX   2            -0.20000000     0.51705427    -0.02697807     0.20000000     0.51705427    -0.02697807 eX$Biv1N  
    Change in Focus                :       0.000000                            0.000000 +<|w|c  
    Decenter Y tolerance on surface 2 7:;V[/  
    TSDY   2            -0.20000000     0.51705427    -0.02697807     0.20000000     0.51705427    -0.02697807 HYY|) Wo  
    Change in Focus                :       0.000000                            0.000000 {M$8V~8D  
    Tilt X tolerance on surface (degrees) 2 6RtpB\hq  
    TSTX   2            -0.20000000     0.35349910    -0.19053324     0.20000000     0.35349910    -0.19053324 /;>EyWW  
    Change in Focus                :       0.000000                            0.000000 GS^4t mc  
    Tilt Y tolerance on surface (degrees) 2 =Vv{td  
    TSTY   2            -0.20000000     0.35349910    -0.19053324     0.20000000     0.35349910    -0.19053324 NSkI2>+P  
    Change in Focus                :       0.000000                            0.000000 >]`x~cE.5  
    Decenter X tolerance on surface 3 /za,&7sf  
    TSDX   3            -0.20000000     0.53419039    -0.00984195     0.20000000     0.53419039    -0.00984195 2-6-kS)c  
    Change in Focus                :       0.000000                            0.000000 k{#:O=  
    Decenter Y tolerance on surface 3 U9q*zP_jV  
    TSDY   3            -0.20000000     0.53419039    -0.00984195     0.20000000     0.53419039    -0.00984195 3A9|{Vaz+6  
    Change in Focus                :       0.000000                            0.000000 v ;A  
    Tilt X tolerance on surface (degrees) 3 0jyokER  
    TSTX   3            -0.20000000     0.42861670    -0.11541563     0.20000000     0.42861670    -0.11541563 5Tu.2.)N  
    Change in Focus                :       0.000000                            0.000000 Tv KX8m"  
    Tilt Y tolerance on surface (degrees) 3 GQQ!3LwP\O  
    TSTY   3            -0.20000000     0.42861670    -0.11541563     0.20000000     0.42861670    -0.11541563 G@;aqe[dB  
    Change in Focus                :       0.000000                            0.000000 g?`J,*y  
    Irregularity of surface 1 in fringes 7 D^A:f  
    TIRR   1            -0.20000000     0.50973587    -0.03429647     0.20000000     0.57333868     0.02930634 ~E\CAZ  
    Change in Focus                :       0.000000                            0.000000 iOyYf!yg  
    Irregularity of surface 2 in fringes {xr]xcM'b  
    TIRR   2            -0.20000000     0.53400904    -0.01002330     0.20000000     0.55360281     0.00957047 1Li@O[%X<  
    Change in Focus                :       0.000000                            0.000000 (o|E@d  
    Irregularity of surface 3 in fringes Em 7q@  
    TIRR   3            -0.20000000     0.58078982     0.03675748     0.20000000     0.49904394    -0.04498840 rx"zqm9 }u  
    Change in Focus                :       0.000000                            0.000000 K$Ph$P@   
    Index tolerance on surface 1 j{PX ~/  
    TIND   1            -0.00100000     0.52606778    -0.01796456     0.00100000     0.56121811     0.01718578 : )z_q!$j  
    Change in Focus                :       0.000000                            0.000000 DjKjEZHgM  
    Index tolerance on surface 2 ?-f>zx8O  
    TIND   2            -0.00100000     0.55639086     0.01235852     0.00100000     0.53126361    -0.01276872 Yc$|"to  
    Change in Focus                :       0.000000                           -0.000000 ,y>Na{@Y  
    fin15k  
    Worst offenders: zxh"@j$?  
    Type                      Value      Criterion        Change jmFN*VIL  
    TSTY   2            -0.20000000     0.35349910    -0.19053324 L`#+ZLo  
    TSTY   2             0.20000000     0.35349910    -0.19053324 a:fHTU=\p  
    TSTX   2            -0.20000000     0.35349910    -0.19053324 ,uv$oP-  
    TSTX   2             0.20000000     0.35349910    -0.19053324 GXfVjC31z  
    TSTY   1            -0.20000000     0.42678383    -0.11724851 r)t^qhn  
    TSTY   1             0.20000000     0.42678383    -0.11724851 u!i5Q  
    TSTX   1            -0.20000000     0.42678383    -0.11724851 'GFzI:Xr  
    TSTX   1             0.20000000     0.42678383    -0.11724851 AUC< m.  
    TSTY   3            -0.20000000     0.42861670    -0.11541563 gY9"!IVe+  
    TSTY   3             0.20000000     0.42861670    -0.11541563 coWBKWF  
    -db+Y:xUZ  
    Estimated Performance Changes based upon Root-Sum-Square method: Trrh`@R  
    Nominal MTF                 :     0.54403234 zCHr  
    Estimated change            :    -0.36299231 pV7Gh`<y  
    Estimated MTF               :     0.18104003 E ( @;p%:  
    -)oBh  
    Compensator Statistics: tX251S  
    Change in back focus: L9T u>4  
    Minimum            :        -0.000000 Cu:Zn%  
    Maximum            :         0.000000 =CoT{LRQ_  
    Mean               :        -0.000000 K288&D|1WU  
    Standard Deviation :         0.000000 {#,FlR2  
    FT~^$)8=  
    Monte Carlo Analysis: e@OA>  
    Number of trials: 20 zqh{=&Tjx  
    qj&)w9RLJE  
    Initial Statistics: Normal Distribution  sD8S2  
    9QMn%8=j  
      Trial       Criterion        Change :j ~5(K"  
          1     0.42804416    -0.11598818 akQH+j  
    Change in Focus                :      -0.400171 %U GlAyj  
          2     0.54384387    -0.00018847 ]D%k)<YK  
    Change in Focus                :       1.018470 eEQ[^i  
          3     0.44510003    -0.09893230 kre&J  
    Change in Focus                :      -0.601922 $J6.a!5IE  
          4     0.18154684    -0.36248550 B$l`9!,  
    Change in Focus                :       0.920681 0Mg8{  
          5     0.28665820    -0.25737414 ~t={ \,X\  
    Change in Focus                :       1.253875 ^%&x{F.  
          6     0.21263372    -0.33139862 8(>.^667  
    Change in Focus                :      -0.903878 <^U(ya  
          7     0.40051424    -0.14351809 BuTIJb+Q\  
    Change in Focus                :      -1.354815 ` a>vPW  
          8     0.48754161    -0.05649072  2JP?6N  
    Change in Focus                :       0.215922 Yys~p2  
          9     0.40357468    -0.14045766 ]%|WE  
    Change in Focus                :       0.281783 Zjg\jo  
         10     0.26315315    -0.28087919 |a{]P=<q  
    Change in Focus                :      -1.048393 iwQ-(GjM[A  
         11     0.26120585    -0.28282649 A+I&.\QAR  
    Change in Focus                :       1.017611 zXZ'nJ5OGG  
         12     0.24033815    -0.30369419 vLuQe0l{  
    Change in Focus                :      -0.109292 ,:4DN&<  
         13     0.37164046    -0.17239188 8[)]3K x  
    Change in Focus                :      -0.692430 = O1;vc}AA  
         14     0.48597489    -0.05805744 |*KS<iHr%  
    Change in Focus                :      -0.662040 / w M  
         15     0.21462327    -0.32940907 -j_I_  
    Change in Focus                :       1.611296 0j(jJAE.  
         16     0.43378226    -0.11025008 nud=uJ"(  
    Change in Focus                :      -0.640081 ^,lZ58 2  
         17     0.39321881    -0.15081353 87KrSZ  
    Change in Focus                :       0.914906 4|N\Q=,  
         18     0.20692530    -0.33710703 GQ2PmnV +  
    Change in Focus                :       0.801607 ]<gCq/V#  
         19     0.51374068    -0.03029165 V<4+g/  
    Change in Focus                :       0.947293 P0e""9JOo  
         20     0.38013374    -0.16389860 JA(fam~{  
    Change in Focus                :       0.667010 t3t0vWE<,  
    [fi'=Cb  
    Number of traceable Monte Carlo files generated: 20 -'[(Uzj  
    k0_$M{@Y  
    Nominal     0.54403234 U}w+`ZLN  
    Best        0.54384387    Trial     2 +RV-VrV  
    Worst       0.18154684    Trial     4 =kh>s$We  
    Mean        0.35770970 6@q[tN7_^  
    Std Dev     0.11156454 N4 mJU'_{  
    HDVl5X`j'  
    ie@`S&.8 T  
    Compensator Statistics: 0^_lj9B!  
    Change in back focus: PCPf*G>  
    Minimum            :        -1.354815 dAr)%RZ  
    Maximum            :         1.611296 =HY1l}\  
    Mean               :         0.161872 [W$Z60?RR  
    Standard Deviation :         0.869664 1@^Ek8C  
    /%YiZ#  
    90% >       0.20977951               $i:||L^8p  
    80% >       0.22748071               +Y)#yGUn  
    50% >       0.38667627               /J.\p/%\  
    20% >       0.46553746               :e]9T3Q  
    10% >       0.50064115                `{U%[$<[W  
    =+`j?1  
    End of Run. 7grt4k  
    r1oku0o  
    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 w,Zx5bBg%  
    .S!>9X,  
    Pc)VK>.fc  
    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 8b:clvh  
    >u5g?yzw  
    不吝赐教
     
    分享到
    离线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?
    离线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                 9jO`gWxV8*  
    80% >       0.22748071                 SqXy;S@  
    50% >       0.38667627                 (@)2PO /  
    20% >       0.46553746                 n .f4z<  
    10% >       0.50064115 Q`S iV  
    e^k!vk-SLF  
    最后这个数值是MTF值呢,还是MTF的公差? |P~O15V*Q  
    By?nd)  
    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???   #)^^_  
    .4Qb5I2#  
    怎么没人啊,大家讨论讨论吗
    离线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  : Qh*)pt]n  
    90% >       0.20977951                 'e F%  
    80% >       0.22748071                 '=VH6@vZ_'  
    50% >       0.38667627                 Cl,9yU)1n  
    20% >       0.46553746                 .}o~VT:!?Y  
    10% >       0.50064115 DKX/W+#a  
    ....... `|nH1sHFq  
    AcKU^T+  
    oz LH]*  
    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   =~&VdPZ  
    Mode                : Sensitivities :_v!#H)  
    Sampling            : 2 msiu8E  
    Nominal Criterion   : 0.54403234 w8p8 ;@  
    Test Wavelength     : 0.6328 + ~ "5!  
    UbO4%YHt  
    波长632.8nm 时 mtf 是 0.54403234  没达到0.6
    离线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? Ke!'gohv  
    Hkege5{  
    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
    离线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