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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 k25:H[   
    3TS(il9A  
    P$=BmBq18`  
    V7\@g  
    然后添加了默认公差分析，基本没变 RO?%0-6O&  
    (E.,kcAJ  
    cJ> #jl&  
    <,S5(pZ  
    然后运行分析的结果如下： l(CMP!mY  
    jZX2)#a!  
    Analysis of Tolerances OE=]/([  
    jhN]1t /\X  
    File : E:\光学设计资料\zemax练习\f500.ZMX (6*CORE   
    Title: ygA~d9"  
    Date : TUE JUN 21 2011 9ne13 qVm+  
    O DLRzk(  
    Units are Millimeters.  3~mi  
    All changes are computed using linear differences. {d%% nK~  
    `qnNEJL,  
    Paraxial Focus compensation only. DnZkZ;E/  
    y]veqa  
    WARNING: Solves should be removed prior to tolerancing. <+tSTc4>r  
    5/ee&sJR  
    Mnemonics: ,+gU^dc|hq  
    TFRN: Tolerance on curvature in fringes. #nv =x&g  
    TTHI: Tolerance on thickness. mT7B#^H  
    TSDX: Tolerance on surface decentering in x. aU)NbESu  
    TSDY: Tolerance on surface decentering in y. U^n71m>]%T  
    TSTX: Tolerance on surface tilt in x (degrees). 2 ;z~xR  
    TSTY: Tolerance on surface tilt in y (degrees). #Oeb3U  
    TIRR: Tolerance on irregularity (fringes). *x;&fyR  
    TIND: Tolerance on Nd index of refraction. %rmn+L),;  
    TEDX: Tolerance on element decentering in x. )M!6y%b67  
    TEDY: Tolerance on element decentering in y. Nzo;j0 [  
    TETX: Tolerance on element tilt in x (degrees). 122%KS  
    TETY: Tolerance on element tilt in y (degrees). i`Tp +e@a>  
    C`Oc%~UkC  
    WARNING: RAY AIMING IS OFF. Very loose tolerances may not be computed accurately. X(`wj~45VX  
    srh>" 2."  
    WARNING: Boundary constraints on compensators will be ignored. W@vt6v  
    IYo{eX~=  
    Criterion           : Geometric MTF average S&T at 30.0000 cycles per mm m~#f L  
    Mode                : Sensitivities j!It1B  
    Sampling            : 2 /5l"rni   
    Nominal Criterion   : 0.54403234 J*nQ(*e  
    Test Wavelength     : 0.6328 $hn=MOMc  
    7H+IW4Ma  
    /s'7[bSv  
    Fields: XY Symmetric Angle in degrees tTMYqg zUk  
    #      X-Field      Y-Field       Weight    VDX    VDY    VCX    VCY * 7<{Xbsj^  
    1   0.000E+000   0.000E+000   1.000E+000  0.000  0.000  0.000  0.000 AO R{Xm  
    8$+mST'4N  
    Sensitivity Analysis: g p2S   
    v*.[O/,EBR  
                     |----------------- Minimum ----------------| |----------------- Maximum ----------------| #s\HiO$BT  
    Type                      Value      Criterion        Change          Value      Criterion        Change S^Lu RF]F  
    Fringe tolerance on surface 1 '\ MYC8"  
    TFRN   1            -1.00000000     0.54257256    -0.00145977     1.00000000     0.54548607     0.00145374 Q=,6W:j  
    Change in Focus                :      -0.000000                            0.000000 x e~lV  
    Fringe tolerance on surface 2 _XO3ml\x@  
    TFRN   2            -1.00000000     0.54177471    -0.00225762     1.00000000     0.54627463     0.00224230 e6 R<V]g  
    Change in Focus                :       0.000000                            0.000000 Mx3MNX /  
    Fringe tolerance on surface 3 iB]xYfQ&@V  
    TFRN   3            -1.00000000     0.54779866     0.00376632     1.00000000     0.54022572    -0.00380662 @Nm;lZK  
    Change in Focus                :      -0.000000                            0.000000 y .O%  
    Thickness tolerance on surface 1 U/W<Sa\`  
    TTHI   1   3        -0.20000000     0.54321462    -0.00081772     0.20000000     0.54484759     0.00081525 E=H>|FgS  
    Change in Focus                :       0.000000                            0.000000 g[NmVY-o  
    Thickness tolerance on surface 2 {Tps3{|wt  
    TTHI   2   3        -0.20000000     0.54478712     0.00075478     0.20000000     0.54327558    -0.00075675 SWX[|sjdB  
    Change in Focus                :       0.000000                           -0.000000 i1(}E#  
    Decenter X tolerance on surfaces 1 through 3 >{seaihK  
    TEDX   1   3        -0.20000000     0.54401464   -1.7700E-005     0.20000000     0.54401464   -1.7700E-005 [eWZ^Eh"I  
    Change in Focus                :       0.000000                            0.000000 )2tDX=D  
    Decenter Y tolerance on surfaces 1 through 3 EDl*UG83G  
    TEDY   1   3        -0.20000000     0.54401464   -1.7700E-005     0.20000000     0.54401464   -1.7700E-005 T uk:: .jD  
    Change in Focus                :       0.000000                            0.000000 K-a~Kr  
    Tilt X tolerance on surfaces 1 through 3 (degrees) 0gLl>tF[H  
    TETX   1   3        -0.20000000     0.54897548     0.00494314     0.20000000     0.54897548     0.00494314 Skb d'j  
    Change in Focus                :       0.000000                            0.000000 !iys\ AV  
    Tilt Y tolerance on surfaces 1 through 3 (degrees) OH(w3:;[8  
    TETY   1   3        -0.20000000     0.54897548     0.00494314     0.20000000     0.54897548     0.00494314 u n)YK  
    Change in Focus                :       0.000000                            0.000000 7CK3t/3D  
    Decenter X tolerance on surface 1 F&Bh\C)]  
    TSDX   1            -0.20000000     0.53999563    -0.00403671     0.20000000     0.53999563    -0.00403671 Qb.Ve7c  
    Change in Focus                :       0.000000                            0.000000 .+@;gVZx1  
    Decenter Y tolerance on surface 1 0Z m^6T  
    TSDY   1            -0.20000000     0.53999563    -0.00403671     0.20000000     0.53999563    -0.00403671 k Y}r^NaQA  
    Change in Focus                :       0.000000                            0.000000 wjVmK  
    Tilt X tolerance on surface (degrees) 1 >l0y ss)I  
    TSTX   1            -0.20000000     0.42678383    -0.11724851     0.20000000     0.42678383    -0.11724851 )V6Bzn}9  
    Change in Focus                :       0.000000                            0.000000 XY_zF F  
    Tilt Y tolerance on surface (degrees) 1 :Zs i5>MT  
    TSTY   1            -0.20000000     0.42678383    -0.11724851     0.20000000     0.42678383    -0.11724851 \Nvu[P  
    Change in Focus                :       0.000000                            0.000000 5~pQ$-  
    Decenter X tolerance on surface 2 >8* 0"Q  
    TSDX   2            -0.20000000     0.51705427    -0.02697807     0.20000000     0.51705427    -0.02697807 ,ce sQ ou  
    Change in Focus                :       0.000000                            0.000000  1?oX"  
    Decenter Y tolerance on surface 2 7gk}f%,3P  
    TSDY   2            -0.20000000     0.51705427    -0.02697807     0.20000000     0.51705427    -0.02697807 KE~l#=S  
    Change in Focus                :       0.000000                            0.000000 P[G.LO  
    Tilt X tolerance on surface (degrees) 2 #[uDVCM  
    TSTX   2            -0.20000000     0.35349910    -0.19053324     0.20000000     0.35349910    -0.19053324 E .'v,GYe  
    Change in Focus                :       0.000000                            0.000000 1iiQW  
    Tilt Y tolerance on surface (degrees) 2 BidTrO  
    TSTY   2            -0.20000000     0.35349910    -0.19053324     0.20000000     0.35349910    -0.19053324 $ #*";b)QY  
    Change in Focus                :       0.000000                            0.000000 tbH` VD"u  
    Decenter X tolerance on surface 3 yMd<<:Ap  
    TSDX   3            -0.20000000     0.53419039    -0.00984195     0.20000000     0.53419039    -0.00984195 e}PJN6"5  
    Change in Focus                :       0.000000                            0.000000 ]UMt  
    Decenter Y tolerance on surface 3 6XFLWN-)  
    TSDY   3            -0.20000000     0.53419039    -0.00984195     0.20000000     0.53419039    -0.00984195 PXx:JZsju  
    Change in Focus                :       0.000000                            0.000000 B%.vEk)*  
    Tilt X tolerance on surface (degrees) 3 a7? )x])e  
    TSTX   3            -0.20000000     0.42861670    -0.11541563     0.20000000     0.42861670    -0.11541563 [J{M'+a  
    Change in Focus                :       0.000000                            0.000000 &P0jRT3e#Y  
    Tilt Y tolerance on surface (degrees) 3 ?_@_NV MY  
    TSTY   3            -0.20000000     0.42861670    -0.11541563     0.20000000     0.42861670    -0.11541563 k(]R;`f$W  
    Change in Focus                :       0.000000                            0.000000 2m*g,J?ql  
    Irregularity of surface 1 in fringes \Fs+H,S<  
    TIRR   1            -0.20000000     0.50973587    -0.03429647     0.20000000     0.57333868     0.02930634 Rs +),  
    Change in Focus                :       0.000000                            0.000000 *3Vic  
    Irregularity of surface 2 in fringes C)a;zU;9  
    TIRR   2            -0.20000000     0.53400904    -0.01002330     0.20000000     0.55360281     0.00957047 UG!528;7  
    Change in Focus                :       0.000000                            0.000000 7eR%zNDa  
    Irregularity of surface 3 in fringes eXYf"hU,  
    TIRR   3            -0.20000000     0.58078982     0.03675748     0.20000000     0.49904394    -0.04498840 l!d |luqbA  
    Change in Focus                :       0.000000                            0.000000 dPm_jX  
    Index tolerance on surface 1 M SnRx*-  
    TIND   1            -0.00100000     0.52606778    -0.01796456     0.00100000     0.56121811     0.01718578 -r'/PbV0  
    Change in Focus                :       0.000000                            0.000000 \{@n >Mh  
    Index tolerance on surface 2 BKV,V/*p  
    TIND   2            -0.00100000     0.55639086     0.01235852     0.00100000     0.53126361    -0.01276872 moOc G3=9  
    Change in Focus                :       0.000000                           -0.000000 C5F=J8pY  
    n9w(Z=D\  
    Worst offenders: L%CBz]`  
    Type                      Value      Criterion        Change n | M~C\*  
    TSTY   2            -0.20000000     0.35349910    -0.19053324 'Zket=Sm;  
    TSTY   2             0.20000000     0.35349910    -0.19053324 &*JU N}86  
    TSTX   2            -0.20000000     0.35349910    -0.19053324 7;i [  
    TSTX   2             0.20000000     0.35349910    -0.19053324 <NYf!bx  
    TSTY   1            -0.20000000     0.42678383    -0.11724851 T!yI+<  
    TSTY   1             0.20000000     0.42678383    -0.11724851 zgnZ72%  
    TSTX   1            -0.20000000     0.42678383    -0.11724851 wyi%!H  
    TSTX   1             0.20000000     0.42678383    -0.11724851 qk *b,`;  
    TSTY   3            -0.20000000     0.42861670    -0.11541563 * q$O6B-  
    TSTY   3             0.20000000     0.42861670    -0.11541563 # GbfFoE  
    e*!0|#-  
    Estimated Performance Changes based upon Root-Sum-Square method: 9 \lSN5W  
    Nominal MTF                 :     0.54403234 KB$S B25m  
    Estimated change            :    -0.36299231 Tp[-,3L  
    Estimated MTF               :     0.18104003 ?s-Z3{k  
    `:Bm@eN  
    Compensator Statistics: 2gM/".|{  
    Change in back focus: )s~szmJoVD  
    Minimum            :        -0.000000 $[xS>iuD  
    Maximum            :         0.000000 LZI[5tA"  
    Mean               :        -0.000000 a`*Dq"9pV  
    Standard Deviation :         0.000000 >3qfo2K 0  
    9{cpxJ  
    Monte Carlo Analysis: )7jJ3G*  
    Number of trials: 20 6>Z)w}x^  
    4/?@ %  
    Initial Statistics: Normal Distribution ;xQNa}"V  
    WZQ EBXs  
      Trial       Criterion        Change h0oe'Xov  
          1     0.42804416    -0.11598818 qGXY  
    Change in Focus                :      -0.400171 B~h3naSe  
          2     0.54384387    -0.00018847 /=K(5Xd  
    Change in Focus                :       1.018470 C)?tf[!_6  
          3     0.44510003    -0.09893230 bP)( 4+t~  
    Change in Focus                :      -0.601922 1$#1  
          4     0.18154684    -0.36248550 xa[)fk$6  
    Change in Focus                :       0.920681 d2U+%%Tdw  
          5     0.28665820    -0.25737414 p&$O}AX|  
    Change in Focus                :       1.253875 uefrE53  
          6     0.21263372    -0.33139862 35KRJY#  
    Change in Focus                :      -0.903878 V]5MIiNl  
          7     0.40051424    -0.14351809 $}8@?>-w  
    Change in Focus                :      -1.354815 yBl9a-2A  
          8     0.48754161    -0.05649072 Aryp!oW  
    Change in Focus                :       0.215922 rX}FhBl5  
          9     0.40357468    -0.14045766 ^:u-wr8?{  
    Change in Focus                :       0.281783 7SJbrOL4Q-  
         10     0.26315315    -0.28087919 wM1&_%N  
    Change in Focus                :      -1.048393 C7=N`s}  
         11     0.26120585    -0.28282649 =1+/`w  
    Change in Focus                :       1.017611 <]f{X<ef  
         12     0.24033815    -0.30369419 ~Z:)Y*  
    Change in Focus                :      -0.109292 @:Emmzucv|  
         13     0.37164046    -0.17239188 vI20G89E  
    Change in Focus                :      -0.692430 r7jh)Q;BbR  
         14     0.48597489    -0.05805744 {` ByZB  
    Change in Focus                :      -0.662040 =eyPo(B  
         15     0.21462327    -0.32940907 M3VTzwuf^S  
    Change in Focus                :       1.611296 <%N*IE"q  
         16     0.43378226    -0.11025008 @gnLY  
    Change in Focus                :      -0.640081 hYbaVE  
         17     0.39321881    -0.15081353 !B v.@~  
    Change in Focus                :       0.914906 1$)}EL   
         18     0.20692530    -0.33710703  "SA*  
    Change in Focus                :       0.801607 U8a5rF><  
         19     0.51374068    -0.03029165 gx.\&W b  
    Change in Focus                :       0.947293 MG,)|XpyWJ  
         20     0.38013374    -0.16389860 ]YrgkC35  
    Change in Focus                :       0.667010 (_3QZ  
    mEg3.|  
    Number of traceable Monte Carlo files generated: 20 U'LPaf$O  
    jx#9  
    Nominal     0.54403234 ()W`4p  
    Best        0.54384387    Trial     2 3Dx@rW\  
    Worst       0.18154684    Trial     4 4YgO1}%G  
    Mean        0.35770970 3vHkhhYQ  
    Std Dev     0.11156454 1T}jK^"  
    8[H bg  
    [0!*<%BgK'  
    Compensator Statistics: _`lPLBr6  
    Change in back focus: *RmD%[f  
    Minimum            :        -1.354815 +45.fo  
    Maximum            :         1.611296 Py\/p Fvg  
    Mean               :         0.161872 ~(`&hYE  
    Standard Deviation :         0.869664 0|6Y% a\U  
    Z^c\M\`7  
    90% >       0.20977951               k'NP+N<M  
    80% >       0.22748071               cs 58: G5  
    50% >       0.38667627               b$sT`+4q  
    20% >       0.46553746               }.D adV  
    10% >       0.50064115                r72zWpF!Ss  
    ]sI\.a  
    End of Run. bO* hmDt  
    p2 !w86 F  
    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 _:>t$* _  
    [QIQpBL  
    0jt@|3  
    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 -^JPY)\R  
    LbuhKL}VN  
    不吝赐教
     
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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？
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    只看该作者 2楼 发表于: 2011-06-22
    90% >       0.20977951                 @+a}O  
    80% >       0.22748071                 >vXS6`;  
    50% >       0.38667627                 Wiyiq )^  
    20% >       0.46553746                 q. j$]?PQ  
    10% >       0.50064115 L\R(//V  
    n]t3d  
    最后这个数值是MTF值呢，还是MTF的公差？ &_-3>8gU  
    4%4Yqx )  
    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？？？   k"6v& O  
    CF v]wS  
    怎么没人啊，大家讨论讨论吗
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    只看该作者 3楼 发表于: 2011-06-23
    没有人啊？？？
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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  : j&b<YPZ  
    90% >       0.20977951                 ]\]mwvLT  
    80% >       0.22748071                 t{`-G*^  
    50% >       0.38667627                 b,'rz04^  
    20% >       0.46553746                 um\A  
    10% >       0.50064115  v&7x ~!O  
    ....... XpA|<s  
    F!2VTPm9z  
    JeAyT48!M  
    这些数值都是MTF值
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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   :U]Pm:ivTU  
    Mode                : Sensitivities .TNJuuO  
    Sampling            : 2 3wfJ!z-E8  
    Nominal Criterion   : 0.54403234 8^R~qpg%  
    Test Wavelength     : 0.6328 :K(+ KN(  
    faZc18M^1  
    波长632.8nm 时 mtf 是 0.54403234  没达到0.6
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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？ [.;8GMW  
    6']WOM#  
    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
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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？
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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
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