切换到宽版
  • 广告投放
  • 稿件投递
  • 繁體中文
    • Zemax光学设计从入门到精通 光学系统设计：理论、仿真与系统检测 Zemax光学设计实践基础(陈家璧) ZEMAX光学系统设计实战
    讯技光电:VirtualLab Fusion独家供应商 光学设计与光学元件 CODE V,LightTools,RSoft,LucidShape 计算光学带来的成像革命
    发帖 回复
    返回列表
    123
    • 16134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
    助理工程师
     
    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 ~wDXjn"U&  
    \+V"JIStUj  
    ar<8wq<4G  
    v](Y n) #  
    然后添加了默认公差分析，基本没变 :*KTpTa  
    u$R5Q{H_  
    y-3'qq'E  
    jXeE]A"  
    然后运行分析的结果如下： + kMj|()>\  
    )=Z;H"_  
    Analysis of Tolerances S&}7XjY  
    R)66qRf  
    File : E:\光学设计资料\zemax练习\f500.ZMX  C^"zU>W_  
    Title: T$lV+[7  
    Date : TUE JUN 21 2011 3l<qcKKc  
    JhFn"(O  
    Units are Millimeters. 62HA[cr&)  
    All changes are computed using linear differences. Yc]V+NxxQ  
    <ZSXOh,'  
    Paraxial Focus compensation only. lq:q0>vyI  
    fc3nQp7  
    WARNING: Solves should be removed prior to tolerancing. >}*W$i  
    !s-A`} s+  
    Mnemonics: eP]y\S*P  
    TFRN: Tolerance on curvature in fringes. #S?^?3d  
    TTHI: Tolerance on thickness. b y>%}#M  
    TSDX: Tolerance on surface decentering in x. vm|u~Yd,s  
    TSDY: Tolerance on surface decentering in y. ht2Fi e  
    TSTX: Tolerance on surface tilt in x (degrees). C!^A\T7p  
    TSTY: Tolerance on surface tilt in y (degrees). 8s6[-F5  
    TIRR: Tolerance on irregularity (fringes). 4u iq'-  
    TIND: Tolerance on Nd index of refraction. `'s_5Ek  
    TEDX: Tolerance on element decentering in x. qIuo8o}  
    TEDY: Tolerance on element decentering in y. iXm&\.%  
    TETX: Tolerance on element tilt in x (degrees). 68z#9}  
    TETY: Tolerance on element tilt in y (degrees). }3: mn  
    "yw{A%J  
    WARNING: RAY AIMING IS OFF. Very loose tolerances may not be computed accurately. ;9j ]P56  
    0;TiNrzg  
    WARNING: Boundary constraints on compensators will be ignored. eWDXV-xD  
    anW['!T9{s  
    Criterion           : Geometric MTF average S&T at 30.0000 cycles per mm ^}~Q(ji7  
    Mode                : Sensitivities ?sQg{1"Zr  
    Sampling            : 2 3q/Us0jr  
    Nominal Criterion   : 0.54403234 o>M^&)Xs  
    Test Wavelength     : 0.6328 W~mo*EJ'^  
    G{: B'08  
    xH2'PEjFM  
    Fields: XY Symmetric Angle in degrees GG>53} 7{  
    #      X-Field      Y-Field       Weight    VDX    VDY    VCX    VCY Q(f0S  
    1   0.000E+000   0.000E+000   1.000E+000  0.000  0.000  0.000  0.000 [ ojL9.6  
    nqH[ y0  
    Sensitivity Analysis: N%f"W&ci  
    ;t+p2i  
                     |----------------- Minimum ----------------| |----------------- Maximum ----------------| : 2%eh  
    Type                      Value      Criterion        Change          Value      Criterion        Change c-hc.i}!  
    Fringe tolerance on surface 1 YWn""8p;P  
    TFRN   1            -1.00000000     0.54257256    -0.00145977     1.00000000     0.54548607     0.00145374 Mrk3r/ 8w  
    Change in Focus                :      -0.000000                            0.000000 M@es8\&S.  
    Fringe tolerance on surface 2 ,mm97I  
    TFRN   2            -1.00000000     0.54177471    -0.00225762     1.00000000     0.54627463     0.00224230 :? B4q#]N  
    Change in Focus                :       0.000000                            0.000000 >Y4^<!\v  
    Fringe tolerance on surface 3 o`n8Fk}i  
    TFRN   3            -1.00000000     0.54779866     0.00376632     1.00000000     0.54022572    -0.00380662 0\!Bh^++1  
    Change in Focus                :      -0.000000                            0.000000 }K 'A/]'  
    Thickness tolerance on surface 1 #D_Ti%.^}  
    TTHI   1   3        -0.20000000     0.54321462    -0.00081772     0.20000000     0.54484759     0.00081525 P\Qvj7_  
    Change in Focus                :       0.000000                            0.000000 OF<:BaRs/  
    Thickness tolerance on surface 2 Kq")|9=d  
    TTHI   2   3        -0.20000000     0.54478712     0.00075478     0.20000000     0.54327558    -0.00075675 CfW#Wk:8J  
    Change in Focus                :       0.000000                           -0.000000 BaIpX<$T  
    Decenter X tolerance on surfaces 1 through 3 =k<b* 8  
    TEDX   1   3        -0.20000000     0.54401464   -1.7700E-005     0.20000000     0.54401464   -1.7700E-005 s7yKx g+`{  
    Change in Focus                :       0.000000                            0.000000 =b$g_+  
    Decenter Y tolerance on surfaces 1 through 3 D-@6 hWh~  
    TEDY   1   3        -0.20000000     0.54401464   -1.7700E-005     0.20000000     0.54401464   -1.7700E-005 uH$hMg  
    Change in Focus                :       0.000000                            0.000000 {Yxvb**  
    Tilt X tolerance on surfaces 1 through 3 (degrees) 8US35t:M  
    TETX   1   3        -0.20000000     0.54897548     0.00494314     0.20000000     0.54897548     0.00494314 4OM ]8I!  
    Change in Focus                :       0.000000                            0.000000 (+v':KH3_  
    Tilt Y tolerance on surfaces 1 through 3 (degrees) :a Cf@:']  
    TETY   1   3        -0.20000000     0.54897548     0.00494314     0.20000000     0.54897548     0.00494314 &c-V QP(  
    Change in Focus                :       0.000000                            0.000000 BD]J/o  
    Decenter X tolerance on surface 1 !KXcg9e  
    TSDX   1            -0.20000000     0.53999563    -0.00403671     0.20000000     0.53999563    -0.00403671 ;sA 5&a>!  
    Change in Focus                :       0.000000                            0.000000 L$c 1<7LU  
    Decenter Y tolerance on surface 1 N_:!uR  
    TSDY   1            -0.20000000     0.53999563    -0.00403671     0.20000000     0.53999563    -0.00403671 w;@v#<q6  
    Change in Focus                :       0.000000                            0.000000 $xW9))  
    Tilt X tolerance on surface (degrees) 1 pWzYC@_W  
    TSTX   1            -0.20000000     0.42678383    -0.11724851     0.20000000     0.42678383    -0.11724851 NUnwf h  
    Change in Focus                :       0.000000                            0.000000 #(qvhoi7lM  
    Tilt Y tolerance on surface (degrees) 1 DOtz  
    TSTY   1            -0.20000000     0.42678383    -0.11724851     0.20000000     0.42678383    -0.11724851 ;PMPXN'z6  
    Change in Focus                :       0.000000                            0.000000 8ZV!ld  
    Decenter X tolerance on surface 2 |goBIp[  
    TSDX   2            -0.20000000     0.51705427    -0.02697807     0.20000000     0.51705427    -0.02697807 ksU& q%1  
    Change in Focus                :       0.000000                            0.000000 I[Bp}6G  
    Decenter Y tolerance on surface 2 O(evlci  
    TSDY   2            -0.20000000     0.51705427    -0.02697807     0.20000000     0.51705427    -0.02697807 Wp = ]YO  
    Change in Focus                :       0.000000                            0.000000 ]gHrqi%  
    Tilt X tolerance on surface (degrees) 2 '`}D+IQ(j  
    TSTX   2            -0.20000000     0.35349910    -0.19053324     0.20000000     0.35349910    -0.19053324 rk=w~IZJ3  
    Change in Focus                :       0.000000                            0.000000 JqLPJUr  
    Tilt Y tolerance on surface (degrees) 2 A\mSS  
    TSTY   2            -0.20000000     0.35349910    -0.19053324     0.20000000     0.35349910    -0.19053324 evEdFY  
    Change in Focus                :       0.000000                            0.000000 zfUj%N  
    Decenter X tolerance on surface 3 &:d`Pik6  
    TSDX   3            -0.20000000     0.53419039    -0.00984195     0.20000000     0.53419039    -0.00984195 n=rmf*,?  
    Change in Focus                :       0.000000                            0.000000 umPN=0u6  
    Decenter Y tolerance on surface 3 HHyN\  
    TSDY   3            -0.20000000     0.53419039    -0.00984195     0.20000000     0.53419039    -0.00984195 a$uD oi  
    Change in Focus                :       0.000000                            0.000000 1| WDbk  
    Tilt X tolerance on surface (degrees) 3 T: '<:*pD  
    TSTX   3            -0.20000000     0.42861670    -0.11541563     0.20000000     0.42861670    -0.11541563 }:?_/$};  
    Change in Focus                :       0.000000                            0.000000 uuHs)  
    Tilt Y tolerance on surface (degrees) 3 (Z@- e^R  
    TSTY   3            -0.20000000     0.42861670    -0.11541563     0.20000000     0.42861670    -0.11541563 -{L 7%j|R  
    Change in Focus                :       0.000000                            0.000000 l66 QgPA  
    Irregularity of surface 1 in fringes NB3+kf,  
    TIRR   1            -0.20000000     0.50973587    -0.03429647     0.20000000     0.57333868     0.02930634 2bXCFv7}  
    Change in Focus                :       0.000000                            0.000000 ]S(nA!]  
    Irregularity of surface 2 in fringes C]ho7qC  
    TIRR   2            -0.20000000     0.53400904    -0.01002330     0.20000000     0.55360281     0.00957047 U>n.+/ss  
    Change in Focus                :       0.000000                            0.000000 R90chl   
    Irregularity of surface 3 in fringes JvT#Fxjk  
    TIRR   3            -0.20000000     0.58078982     0.03675748     0.20000000     0.49904394    -0.04498840 ]$)};8;7W  
    Change in Focus                :       0.000000                            0.000000 )MN6\v  
    Index tolerance on surface 1 qoQ,3&<  
    TIND   1            -0.00100000     0.52606778    -0.01796456     0.00100000     0.56121811     0.01718578 _NuHz  
    Change in Focus                :       0.000000                            0.000000 /$qB&OWJn  
    Index tolerance on surface 2 ,uO?f1  
    TIND   2            -0.00100000     0.55639086     0.01235852     0.00100000     0.53126361    -0.01276872 =AK6^v&on  
    Change in Focus                :       0.000000                           -0.000000 t P' ._0n0  
    4. %/u@rAi  
    Worst offenders: Jk<b#SZ[b  
    Type                      Value      Criterion        Change V-%jSe<  
    TSTY   2            -0.20000000     0.35349910    -0.19053324 k fOd|-  
    TSTY   2             0.20000000     0.35349910    -0.19053324 !9C]Fs*`?  
    TSTX   2            -0.20000000     0.35349910    -0.19053324 5?#AS#TD'  
    TSTX   2             0.20000000     0.35349910    -0.19053324 !9zs>T&9a\  
    TSTY   1            -0.20000000     0.42678383    -0.11724851 3gCP?%R  
    TSTY   1             0.20000000     0.42678383    -0.11724851 U&+lw=  
    TSTX   1            -0.20000000     0.42678383    -0.11724851 1- GtZ2  
    TSTX   1             0.20000000     0.42678383    -0.11724851 ]nS9taEA   
    TSTY   3            -0.20000000     0.42861670    -0.11541563 EffU-=?%!  
    TSTY   3             0.20000000     0.42861670    -0.11541563 ;M#D*<ucI:  
    \ o?  
    Estimated Performance Changes based upon Root-Sum-Square method: on\ahk, y]  
    Nominal MTF                 :     0.54403234 5n2}|V$VqP  
    Estimated change            :    -0.36299231 S`spUq1o  
    Estimated MTF               :     0.18104003 :$^sI"hO  
    rj eKG-Z@  
    Compensator Statistics: tdi}P/x  
    Change in back focus: "y .(E7 6  
    Minimum            :        -0.000000 +P*,i$MV  
    Maximum            :         0.000000 oM}P Wf-  
    Mean               :        -0.000000 rYyEs I#qo  
    Standard Deviation :         0.000000 M)nf(jw#G  
    oH [-fF  
    Monte Carlo Analysis: W<H^V"^  
    Number of trials: 20 V,3$>4x  
    X2('@Yh  
    Initial Statistics: Normal Distribution wdgC{W Gl  
    `yb,z   
      Trial       Criterion        Change P4"EvdV7  
          1     0.42804416    -0.11598818 ps]s Tw  
    Change in Focus                :      -0.400171 J$Ba*`~!!  
          2     0.54384387    -0.00018847 s9YP =)I  
    Change in Focus                :       1.018470 m}-~VYDj  
          3     0.44510003    -0.09893230 q1M16qv5  
    Change in Focus                :      -0.601922 h,Tsb:Q"M  
          4     0.18154684    -0.36248550 0>?78QL9<  
    Change in Focus                :       0.920681 X?]1/6rV  
          5     0.28665820    -0.25737414 6EX8,4c\  
    Change in Focus                :       1.253875 _i&awm/U  
          6     0.21263372    -0.33139862 NB/ wJ3 F  
    Change in Focus                :      -0.903878 WXE{uGc  
          7     0.40051424    -0.14351809 T EqCoeR  
    Change in Focus                :      -1.354815 [hXU$Y>"0  
          8     0.48754161    -0.05649072 .SSj=q4?  
    Change in Focus                :       0.215922 !*|`-woE  
          9     0.40357468    -0.14045766 @MGc_"b  
    Change in Focus                :       0.281783 y>m=A41:g  
         10     0.26315315    -0.28087919 rsvGf7C  
    Change in Focus                :      -1.048393 K5q9u-7  
         11     0.26120585    -0.28282649 KbF,jm5  
    Change in Focus                :       1.017611 :~]ha  
         12     0.24033815    -0.30369419 >&N8Du*[  
    Change in Focus                :      -0.109292 X5D}<J2"  
         13     0.37164046    -0.17239188 v.I>B3bEg  
    Change in Focus                :      -0.692430 {wp"zaa  
         14     0.48597489    -0.05805744 E%C02sI  
    Change in Focus                :      -0.662040 E MKv)5MH  
         15     0.21462327    -0.32940907 liq9P,(  
    Change in Focus                :       1.611296 s5ddGiZnBT  
         16     0.43378226    -0.11025008 (f|3(u'e?  
    Change in Focus                :      -0.640081 6~0. YZ9  
         17     0.39321881    -0.15081353 t.oP]_mI  
    Change in Focus                :       0.914906  snyg  
         18     0.20692530    -0.33710703 Doy7prKI8  
    Change in Focus                :       0.801607 6<<ihm+  
         19     0.51374068    -0.03029165 qS|t7*  
    Change in Focus                :       0.947293 3 a G?^z  
         20     0.38013374    -0.16389860 'PrrP3lO_~  
    Change in Focus                :       0.667010 ,;yiV<AD  
    E7qk>~Dg  
    Number of traceable Monte Carlo files generated: 20  cUz7F  
    <ibEo98  
    Nominal     0.54403234 n +z5;'my  
    Best        0.54384387    Trial     2 thjCfP   
    Worst       0.18154684    Trial     4 Yl#r9TM  
    Mean        0.35770970 vHPp$lql  
    Std Dev     0.11156454 H:BWv08~5  
    }l>0m  
    a:tCdnK/  
    Compensator Statistics: |};P"&  
    Change in back focus: 2!b+}+:  
    Minimum            :        -1.354815 Q}M% \v  
    Maximum            :         1.611296 |Tp>,\:5  
    Mean               :         0.161872 G-]ndrTn  
    Standard Deviation :         0.869664 .* xaI+:  
    EnGVp<6R  
    90% >       0.20977951               @m[r0i0J"  
    80% >       0.22748071               C-abc+/  
    50% >       0.38667627               W])<0R52  
    20% >       0.46553746               {WJ+6!v  
    10% >       0.50064115                ^F `   
    V!F# ek:  
    End of Run. tTB,eR$  
    V3NQij(  
    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 }Zue?!KQ  
    r9Wk7?w)  
    .>0j<|~  
    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 R(sPU>`MX  
    ? -PRS.=%  
    不吝赐教
     
    回复
    举报
    分享到
    在线sansummer
    助理工程师
    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？
    回复
    举报
    在线sansummer
    助理工程师
    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                 7{%_6b"  
    80% >       0.22748071                 1&JPyW  
    50% >       0.38667627                 1PD{m{  
    20% >       0.46553746                 ztcV[{[g  
    10% >       0.50064115 5hN`}Ve  
    kcg{z8cd'r  
    最后这个数值是MTF值呢，还是MTF的公差？ ;x/do?FbT  
    [ZC{eg+D  
    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？？？   +yvtd]D$2W  
    + niz(]  
    怎么没人啊，大家讨论讨论吗
    回复
    举报
    在线sansummer
    助理工程师
    发帖
    959
    光币
    1087
    光券
    1
    只看该作者 3楼 发表于: 2011-06-23
    没有人啊？？？
    回复
    举报
    离线天地大同
    助理工程师
    发帖
    295
    光币
    1899
    光券
    0
    只看该作者 4楼 发表于: 2011-06-23
    引用第2楼sansummer于2011-06-22 08:56发表的  : hn`yc7<}(u  
    90% >       0.20977951                 ]>v C.iYp  
    80% >       0.22748071                 4d x4hBd  
    50% >       0.38667627                 ]|m?pt  
    20% >       0.46553746                 +56N}MAs  
    10% >       0.50064115 91f{qq=#J{  
    ....... t=l@(%O 0_  
    /penB[ 1i  
    0r_3:#Nn  
    这些数值都是MTF值
    回复
    举报
    离线天地大同
    助理工程师
    发帖
    295
    光币
    1899
    光券
    0
    只看该作者 5楼 发表于: 2011-06-23
    Criterion           : Geometric MTF average S&T at 30.0000 cycles per mm   t6q7 w  
    Mode                : Sensitivities X-4(oE  
    Sampling            : 2 :$=]*54`T  
    Nominal Criterion   : 0.54403234  .u3;  
    Test Wavelength     : 0.6328 :Bh7mF-1  
    */_$' /q V  
    波长632.8nm 时 mtf 是 0.54403234  没达到0.6
    回复
    举报
    在线sansummer
    助理工程师
    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？ ]."t  
    og?L 9  
    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？
    回复
    举报
    离线天地大同
    助理工程师
    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
    回复
    举报
    在线sansummer
    助理工程师
    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？
    回复
    举报
    离线天地大同
    助理工程师
    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
    回复
    举报
    发帖 回复
    返回列表
    123