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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 ZlC+DXg#S  
    D mi.@.  
    B`R@%US  
    HM)D/CO,?  
    然后添加了默认公差分析,基本没变 w]qM  
    Vv(buG  
    E@k'uyIu  
    S{l)hwlE  
    然后运行分析的结果如下: deYv&=SPl  
    ldp9+7n~  
    Analysis of Tolerances a"YVr'|  
    zOSUYn  
    File : E:\光学设计资料\zemax练习\f500.ZMX ?q4`&";{3  
    Title: I^f|U  
    Date : TUE JUN 21 2011 [N~7PNdS  
    Xux[  
    Units are Millimeters. pm=O.)g4`  
    All changes are computed using linear differences. n[!QrEeR},  
    %>+lr%B  
    Paraxial Focus compensation only. 6|q"lS*$S  
    n6Uh%rO7S|  
    WARNING: Solves should be removed prior to tolerancing. 3,v/zcV  
    H?;+C/-K`_  
    Mnemonics: L`<#vi  
    TFRN: Tolerance on curvature in fringes. k?Hi_;o  
    TTHI: Tolerance on thickness. 7Dssr [  
    TSDX: Tolerance on surface decentering in x. ;0kAm Vy  
    TSDY: Tolerance on surface decentering in y. T'7>4MT(  
    TSTX: Tolerance on surface tilt in x (degrees). 9*FA=E  
    TSTY: Tolerance on surface tilt in y (degrees). E<-W & a}  
    TIRR: Tolerance on irregularity (fringes). #y#TEw,  
    TIND: Tolerance on Nd index of refraction. =/a`X[9vI  
    TEDX: Tolerance on element decentering in x. ` ~m/  
    TEDY: Tolerance on element decentering in y. @BnK C&{  
    TETX: Tolerance on element tilt in x (degrees). {ST8'hY  
    TETY: Tolerance on element tilt in y (degrees). k0I$x:c  
    t*Ro2QZ  
    WARNING: RAY AIMING IS OFF. Very loose tolerances may not be computed accurately. Ji,;ri2i  
     Xp<O  
    WARNING: Boundary constraints on compensators will be ignored. ]7k:3"wH  
    P]^8Enp  
    Criterion           : Geometric MTF average S&T at 30.0000 cycles per mm BTr;F]W  
    Mode                : Sensitivities 1&e8vVN  
    Sampling            : 2  y_[VhZ%  
    Nominal Criterion   : 0.54403234 <HJLs+C  
    Test Wavelength     : 0.6328 H(n fHp.3  
    '=+N )O  
     Rh6CV  
    Fields: XY Symmetric Angle in degrees Q`J U[nY  
    #      X-Field      Y-Field       Weight    VDX    VDY    VCX    VCY j^b &Q  
    1   0.000E+000   0.000E+000   1.000E+000  0.000  0.000  0.000  0.000 :I";&7C  
    @qcUxu4  
    Sensitivity Analysis: AFsieJ  
    \NDW@!X  
                     |----------------- Minimum ----------------| |----------------- Maximum ----------------| x v$fw>  
    Type                      Value      Criterion        Change          Value      Criterion        Change vxPr)"Vvz  
    Fringe tolerance on surface 1 rr`_\ut  
    TFRN   1            -1.00000000     0.54257256    -0.00145977     1.00000000     0.54548607     0.00145374 }vB{6E+h/w  
    Change in Focus                :      -0.000000                            0.000000 "dndhoMq  
    Fringe tolerance on surface 2 w_`;Mn%p  
    TFRN   2            -1.00000000     0.54177471    -0.00225762     1.00000000     0.54627463     0.00224230 r`FTiPD.C  
    Change in Focus                :       0.000000                            0.000000 n3V$Xtxw  
    Fringe tolerance on surface 3 9({ 9r[U  
    TFRN   3            -1.00000000     0.54779866     0.00376632     1.00000000     0.54022572    -0.00380662 2<0".5+I  
    Change in Focus                :      -0.000000                            0.000000 P;y!Y/$C  
    Thickness tolerance on surface 1 ;dZZOocV1  
    TTHI   1   3        -0.20000000     0.54321462    -0.00081772     0.20000000     0.54484759     0.00081525 3VMaD@nYa  
    Change in Focus                :       0.000000                            0.000000 @/As|)  
    Thickness tolerance on surface 2 dmkGIg}  
    TTHI   2   3        -0.20000000     0.54478712     0.00075478     0.20000000     0.54327558    -0.00075675 S]fkA6v  
    Change in Focus                :       0.000000                           -0.000000 N!?~Dgw  
    Decenter X tolerance on surfaces 1 through 3 8TH;6-RT  
    TEDX   1   3        -0.20000000     0.54401464   -1.7700E-005     0.20000000     0.54401464   -1.7700E-005 ;A"i.:ZT  
    Change in Focus                :       0.000000                            0.000000 NA@Z$Gy  
    Decenter Y tolerance on surfaces 1 through 3 4$2HO `@uN  
    TEDY   1   3        -0.20000000     0.54401464   -1.7700E-005     0.20000000     0.54401464   -1.7700E-005 A;ZluQ  
    Change in Focus                :       0.000000                            0.000000 obbg# ,  
    Tilt X tolerance on surfaces 1 through 3 (degrees) 7w5l[a/  
    TETX   1   3        -0.20000000     0.54897548     0.00494314     0.20000000     0.54897548     0.00494314 23=wz%tF  
    Change in Focus                :       0.000000                            0.000000 /;q 3Q#  
    Tilt Y tolerance on surfaces 1 through 3 (degrees) ,{iMF (Nj  
    TETY   1   3        -0.20000000     0.54897548     0.00494314     0.20000000     0.54897548     0.00494314 $@{ d\@U  
    Change in Focus                :       0.000000                            0.000000 1 5|gG<-  
    Decenter X tolerance on surface 1 p|0SA=?k"  
    TSDX   1            -0.20000000     0.53999563    -0.00403671     0.20000000     0.53999563    -0.00403671 1M_6X7PH  
    Change in Focus                :       0.000000                            0.000000 %|/\Qu  
    Decenter Y tolerance on surface 1 vqUYr  
    TSDY   1            -0.20000000     0.53999563    -0.00403671     0.20000000     0.53999563    -0.00403671 OS L~a_  
    Change in Focus                :       0.000000                            0.000000 U[yA`7Zs}  
    Tilt X tolerance on surface (degrees) 1 fK@UlMC]7  
    TSTX   1            -0.20000000     0.42678383    -0.11724851     0.20000000     0.42678383    -0.11724851 33}p02#  
    Change in Focus                :       0.000000                            0.000000 ^N ;TCn  
    Tilt Y tolerance on surface (degrees) 1 'R$/Qt;uA  
    TSTY   1            -0.20000000     0.42678383    -0.11724851     0.20000000     0.42678383    -0.11724851 V.Lk70 \  
    Change in Focus                :       0.000000                            0.000000 o4rf[.z  
    Decenter X tolerance on surface 2 `7`` 1TL  
    TSDX   2            -0.20000000     0.51705427    -0.02697807     0.20000000     0.51705427    -0.02697807 l'!_km0{d  
    Change in Focus                :       0.000000                            0.000000 bS|h~B]rd  
    Decenter Y tolerance on surface 2 's"aPqF?  
    TSDY   2            -0.20000000     0.51705427    -0.02697807     0.20000000     0.51705427    -0.02697807 ij?]fXf:)y  
    Change in Focus                :       0.000000                            0.000000 )WEOqaR]  
    Tilt X tolerance on surface (degrees) 2 :[_k .1-+  
    TSTX   2            -0.20000000     0.35349910    -0.19053324     0.20000000     0.35349910    -0.19053324 n ]l3 )u  
    Change in Focus                :       0.000000                            0.000000 Y.52`s6F  
    Tilt Y tolerance on surface (degrees) 2 n*AN/LBp  
    TSTY   2            -0.20000000     0.35349910    -0.19053324     0.20000000     0.35349910    -0.19053324  HsG3s?*  
    Change in Focus                :       0.000000                            0.000000 ) TNG0[  
    Decenter X tolerance on surface 3 b\NY!)B  
    TSDX   3            -0.20000000     0.53419039    -0.00984195     0.20000000     0.53419039    -0.00984195 ~:0U.v_V  
    Change in Focus                :       0.000000                            0.000000 >"zN`  
    Decenter Y tolerance on surface 3 {c $8?6  
    TSDY   3            -0.20000000     0.53419039    -0.00984195     0.20000000     0.53419039    -0.00984195 GIkVU6Q}  
    Change in Focus                :       0.000000                            0.000000 nGJ+.z  
    Tilt X tolerance on surface (degrees) 3 |D;I>O^"R  
    TSTX   3            -0.20000000     0.42861670    -0.11541563     0.20000000     0.42861670    -0.11541563 FVOPC:}bj  
    Change in Focus                :       0.000000                            0.000000 _lH:%E*  
    Tilt Y tolerance on surface (degrees) 3 7/=r-  
    TSTY   3            -0.20000000     0.42861670    -0.11541563     0.20000000     0.42861670    -0.11541563 UY\E uA9  
    Change in Focus                :       0.000000                            0.000000 @9]TjZd  
    Irregularity of surface 1 in fringes 4Dd]:2|D  
    TIRR   1            -0.20000000     0.50973587    -0.03429647     0.20000000     0.57333868     0.02930634 }&l%>P  
    Change in Focus                :       0.000000                            0.000000 77]Fp(uI  
    Irregularity of surface 2 in fringes d<cQYI4V  
    TIRR   2            -0.20000000     0.53400904    -0.01002330     0.20000000     0.55360281     0.00957047 `- 9p)@'8k  
    Change in Focus                :       0.000000                            0.000000 A(C0/|#V  
    Irregularity of surface 3 in fringes c/-'^+9  
    TIRR   3            -0.20000000     0.58078982     0.03675748     0.20000000     0.49904394    -0.04498840 d(D|rf,av  
    Change in Focus                :       0.000000                            0.000000 ? a*yK8S  
    Index tolerance on surface 1 tg2+Z\0)4g  
    TIND   1            -0.00100000     0.52606778    -0.01796456     0.00100000     0.56121811     0.01718578 N71%l  
    Change in Focus                :       0.000000                            0.000000 S; !7 /z  
    Index tolerance on surface 2 SmP&wNHQf  
    TIND   2            -0.00100000     0.55639086     0.01235852     0.00100000     0.53126361    -0.01276872 Z7MGBwP(  
    Change in Focus                :       0.000000                           -0.000000 `4|:8@,3{  
    :{#w-oC>6P  
    Worst offenders: 3qp\jh=FE  
    Type                      Value      Criterion        Change UtB~joaR  
    TSTY   2            -0.20000000     0.35349910    -0.19053324 CY@#_z  
    TSTY   2             0.20000000     0.35349910    -0.19053324 Is  ( Ji  
    TSTX   2            -0.20000000     0.35349910    -0.19053324 R36A_  
    TSTX   2             0.20000000     0.35349910    -0.19053324 .Ax]SNZ+:A  
    TSTY   1            -0.20000000     0.42678383    -0.11724851 R8, g^N  
    TSTY   1             0.20000000     0.42678383    -0.11724851 u>03l(X6f  
    TSTX   1            -0.20000000     0.42678383    -0.11724851 W_]onq 6  
    TSTX   1             0.20000000     0.42678383    -0.11724851 n 8)eC2 A  
    TSTY   3            -0.20000000     0.42861670    -0.11541563 e yByAT~W,  
    TSTY   3             0.20000000     0.42861670    -0.11541563 Q,>]f@m  
    ?$H=n{iW  
    Estimated Performance Changes based upon Root-Sum-Square method: HAcC& s8  
    Nominal MTF                 :     0.54403234 P[gYENQ   
    Estimated change            :    -0.36299231 Gl>*e|}  
    Estimated MTF               :     0.18104003 8/ CK(G  
     }}d,xI  
    Compensator Statistics: gCI{g. [I!  
    Change in back focus: KN\tRE  
    Minimum            :        -0.000000 p}a0z?  
    Maximum            :         0.000000 zW; sr.  
    Mean               :        -0.000000 K|wB0TiXP  
    Standard Deviation :         0.000000 C.VU"= -  
    kfs[*ku  
    Monte Carlo Analysis: 1n>(CwLG"  
    Number of trials: 20 'iEu1! t\0  
    G9 ra;.  
    Initial Statistics: Normal Distribution -j}zr yG-  
    AKUmh  
      Trial       Criterion        Change hyC]{E  
          1     0.42804416    -0.11598818 >+ku:<Hw%.  
    Change in Focus                :      -0.400171 zHQSx7Ow 5  
          2     0.54384387    -0.00018847 vqJq=\ .m  
    Change in Focus                :       1.018470 Jw -3G3h  
          3     0.44510003    -0.09893230 |Y;[)s =q  
    Change in Focus                :      -0.601922 .vtV2lq  
          4     0.18154684    -0.36248550 t`"pn <  
    Change in Focus                :       0.920681 43BqNQ0  
          5     0.28665820    -0.25737414 +(8Z8]Jf  
    Change in Focus                :       1.253875 zXv2plw(  
          6     0.21263372    -0.33139862 SH1)@K-  
    Change in Focus                :      -0.903878 ,uCgC4EP  
          7     0.40051424    -0.14351809 .]K{8[:hq  
    Change in Focus                :      -1.354815 Q;eY]l8  
          8     0.48754161    -0.05649072 DYW&6+%,hO  
    Change in Focus                :       0.215922 N|  
          9     0.40357468    -0.14045766 LZ1)zoJ  
    Change in Focus                :       0.281783 '"]U+aIg  
         10     0.26315315    -0.28087919 Xny{8Oo<1?  
    Change in Focus                :      -1.048393 7E\k97#G  
         11     0.26120585    -0.28282649 ;a~ e  
    Change in Focus                :       1.017611 ")eY{C  
         12     0.24033815    -0.30369419 Z3z"c B  
    Change in Focus                :      -0.109292 EVDcj,b"^  
         13     0.37164046    -0.17239188 vW`[CEm^X  
    Change in Focus                :      -0.692430 %.  W56  
         14     0.48597489    -0.05805744 1R7w  
    Change in Focus                :      -0.662040 ~ qezr\$2  
         15     0.21462327    -0.32940907 .CBb%onx  
    Change in Focus                :       1.611296 &O^t]7  
         16     0.43378226    -0.11025008 >AUzsQ  
    Change in Focus                :      -0.640081 c4(og|ifk  
         17     0.39321881    -0.15081353 _.^`DP >  
    Change in Focus                :       0.914906 j4}Q  
         18     0.20692530    -0.33710703 H[U"eS."  
    Change in Focus                :       0.801607 ~r?VXO p"  
         19     0.51374068    -0.03029165 `clp#l.ii  
    Change in Focus                :       0.947293 DN;3VT.-  
         20     0.38013374    -0.16389860 K5}0!_)G  
    Change in Focus                :       0.667010 @ 3,:G$,  
    ..UA*#%1  
    Number of traceable Monte Carlo files generated: 20 @*-t.b2k  
    i@#=Rxp  
    Nominal     0.54403234 E5g|*M.+f  
    Best        0.54384387    Trial     2 <^Jdl.G  
    Worst       0.18154684    Trial     4 jAy 0k  
    Mean        0.35770970 "WzD+<oL  
    Std Dev     0.11156454 B PG&R  
    z2[{3Kd*  
    5 N:IH@  
    Compensator Statistics: Tx|y!uHh  
    Change in back focus: WlmkM?@  
    Minimum            :        -1.354815 9i+`,r  
    Maximum            :         1.611296 . pyNET  
    Mean               :         0.161872 \"6?*L|]  
    Standard Deviation :         0.869664 c]R27r E  
    3U%kf<m=  
    90% >       0.20977951               lwm 9gka  
    80% >       0.22748071               3_ko=& B$  
    50% >       0.38667627               t"jiLOQ[6  
    20% >       0.46553746               qpV"ii  
    10% >       0.50064115                =TJ9Gr/R&:  
    @z>DJ>htN  
    End of Run. 1\-r5e; BE  
    eD!mR3Ai@D  
    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 H7(D8.y )  
    ;Pe=cc"@  
    4OFv#$[  
    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 %BF,;(P  
    fw)Q1"|  
    不吝赐教
     
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    离线sansummer
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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?
    离线sansummer
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    只看该作者 2楼 发表于: 2011-06-22
    90% >       0.20977951                 |5jrl|  
    80% >       0.22748071                 bjAI7B8As  
    50% >       0.38667627                 }46Zfg\T6n  
    20% >       0.46553746                 6Ta+f3V   
    10% >       0.50064115 w)&?9?~  
    #4<=Ira5  
    最后这个数值是MTF值呢,还是MTF的公差? YdyTt5-  
    ZsSW{ffZ77  
    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???   ~O|~M_Z  
    Nxna H!wS  
    怎么没人啊,大家讨论讨论吗
    离线sansummer
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    只看该作者 3楼 发表于: 2011-06-23
    没有人啊???
    离线天地大同
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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  : $gN\%X/n"1  
    90% >       0.20977951                 [V qiF~o,  
    80% >       0.22748071                 'n>44_7L  
    50% >       0.38667627                 4f~sRubK  
    20% >       0.46553746                 FPkk\[EU  
    10% >       0.50064115 pJs`/   
    ....... 8EMBqhl  
    ZZZ`@pXm;  
    tQRbNY#}Z  
    这些数值都是MTF值
    离线天地大同
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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   j,;f#+O`g  
    Mode                : Sensitivities (9ZW^flY  
    Sampling            : 2 D "5|\  
    Nominal Criterion   : 0.54403234 04&S.#+(  
    Test Wavelength     : 0.6328 (T$cw(!  
    ;dMr2y`6  
    波长632.8nm 时 mtf 是 0.54403234  没达到0.6
    离线sansummer
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    只看该作者 6楼 发表于: 2011-06-24
    回 5楼(天地大同) 的帖子
    谢谢。您说的“波长632.8nm 时 mtf 是 0.54403234  没达到0.6”这是一个评价标准吧? h*D -Vo  
    ?Fa$lE4  
    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
    离线sansummer
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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?
    离线天地大同
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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