[讨论]公差分析结果的疑问 [复制链接]

我现在在初学zemax的公差分析，找了一个双胶合透镜 Zg
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然后添加了默认公差分析，基本没变 X|)Il8  
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然后运行分析的结果如下： (zEYpTp  
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Analysis of Tolerances `.`FgaJ |  
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File : E:\光学设计资料\zemax练习\f500.ZMX C#T)@UxBZ  
Title: I*9Gb$]=  
Date : TUE JUN 21 2011 1sMV`qv>  
 HFv?s  
Units are Millimeters. J]\s*,C&  
All changes are computed using linear differences. 5@iy3olP  
e00RT1L  
Paraxial Focus compensation only. Q>V?w gZ  
pBvo M={2!  
WARNING: Solves should be removed prior to tolerancing. 35}P0+  
37~rm  
Mnemonics: 4fD`M(wv  
TFRN: Tolerance on curvature in fringes. L#[HnsLp_  
TTHI: Tolerance on thickness. svF*@(-P#  
TSDX: Tolerance on surface decentering in x. ?3n=m%W,J*  
TSDY: Tolerance on surface decentering in y. 2-p8rGI_F  
TSTX: Tolerance on surface tilt in x (degrees). 1RURZoL  
TSTY: Tolerance on surface tilt in y (degrees). dPRtN@3  
TIRR: Tolerance on irregularity (fringes). vsjM3=  
TIND: Tolerance on Nd index of refraction. ?Z5$0-g'hU  
TEDX: Tolerance on element decentering in x. BzN/6VEw  
TEDY: Tolerance on element decentering in y. Qb@BV&^y&  
TETX: Tolerance on element tilt in x (degrees). KX]-ll  
TETY: Tolerance on element tilt in y (degrees). 69N1 mP  
b$IY2W<Ln  
WARNING: RAY AIMING IS OFF. Very loose tolerances may not be computed accurately. u|(aS^H=q  
1a \=0=[  
WARNING: Boundary constraints on compensators will be ignored. R%Kl&c  
 <Wp`[S]r  
Criterion           : Geometric MTF average S&T at 30.0000 cycles per mm ,^Ex}Z  
Mode                : Sensitivities SB5@\^  
Sampling            : 2 3L%Y"4(mm  
Nominal Criterion   : 0.54403234 Z?5,cI[6#  
Test Wavelength     : 0.6328 9t,aT!f  
S^*(ALFPj  
}S Y`KoC1  
Fields: XY Symmetric Angle in degrees tW'qO:y+  
#      X-Field      Y-Field       Weight    VDX    VDY    VCX    VCY {9y9Kr|(P:  
1   0.000E+000   0.000E+000   1.000E+000  0.000  0.000  0.000  0.000 OFJJ-4[_3  
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Sensitivity Analysis: +:j4G^V  
J$o[$G_Z  
                 |----------------- Minimum ----------------| |----------------- Maximum ----------------| I$rW[l2  
Type                      Value      Criterion        Change          Value      Criterion        Change zW|$x<M^  
Fringe tolerance on surface 1 yTMGIS
X5  
TFRN   1            -1.00000000     0.54257256    -0.00145977     1.00000000     0.54548607     0.00145374 B'<O)"1w  
Change in Focus                :      -0.000000                            0.000000 >EPaZp6  
Fringe tolerance on surface 2 C{lB/F/|!  
TFRN   2            -1.00000000     0.54177471    -0.00225762     1.00000000     0.54627463     0.00224230 hfVzzVX:  
Change in Focus                :       0.000000                            0.000000 4c493QOd  
Fringe tolerance on surface 3 'dd<<E  
TFRN   3            -1.00000000     0.54779866     0.00376632     1.00000000     0.54022572    -0.00380662 ]}*G[[ ^p  
Change in Focus                :      -0.000000                            0.000000 D(W7O>5vQ2  
Thickness tolerance on surface 1 GL
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TTHI   1   3        -0.20000000     0.54321462    -0.00081772     0.20000000     0.54484759     0.00081525 i1kh@s~8UC  
Change in Focus                :       0.000000                            0.000000 yDl5t-0`  
Thickness tolerance on surface 2  Wl}G[>P  
TTHI   2   3        -0.20000000     0.54478712     0.00075478     0.20000000     0.54327558    -0.00075675 '8iv?D5M  
Change in Focus                :       0.000000                           -0.000000 B%?|br
 
Decenter X tolerance on surfaces 1 through 3 ?j ;,q  
TEDX   1   3        -0.20000000     0.54401464   -1.7700E-005     0.20000000     0.54401464   -1.7700E-005 ln_EL?V  
Change in Focus                :       0.000000                            0.000000 ]MBJ"1F  
Decenter Y tolerance on surfaces 1 through 3 'SXpb?CZ  
TEDY   1   3        -0.20000000     0.54401464   -1.7700E-005     0.20000000     0.54401464   -1.7700E-005 n,R[O_9u[  
Change in Focus                :       0.000000                            0.000000 Amq8q  
Tilt X tolerance on surfaces 1 through 3 (degrees) ^U|CNB%.  
TETX   1   3        -0.20000000     0.54897548     0.00494314     0.20000000     0.54897548     0.00494314 ui:>eYv  
Change in Focus                :       0.000000                            0.000000 YQw/[  
Tilt Y tolerance on surfaces 1 through 3 (degrees) uc{Qhw!;:  
TETY   1   3        -0.20000000     0.54897548     0.00494314     0.20000000     0.54897548     0.00494314 &dHm!b  
Change in Focus                :       0.000000                            0.000000 bU@>1>b6lE  
Decenter X tolerance on surface 1 )l81R  
TSDX   1            -0.20000000     0.53999563    -0.00403671     0.20000000     0.53999563    -0.00403671 jmwQc&  
Change in Focus                :       0.000000                            0.000000 =FC;d[U  
Decenter Y tolerance on surface 1 Aghj)V  
TSDY   1            -0.20000000     0.53999563    -0.00403671     0.20000000     0.53999563    -0.00403671 znDtM1sLeV  
Change in Focus                :       0.000000                            0.000000 _S7M5{U_  
Tilt X tolerance on surface (degrees) 1 kkuQ"^<J  
TSTX   1            -0.20000000     0.42678383    -0.11724851     0.20000000     0.42678383    -0.11724851 I;fw]/M%!  
Change in Focus                :       0.000000                            0.000000 RHA>fXp  
Tilt Y tolerance on surface (degrees) 1 !n?*vN=S  
TSTY   1            -0.20000000     0.42678383    -0.11724851     0.20000000     0.42678383    -0.11724851 F(kRAe;  
Change in Focus                :       0.000000                            0.000000 u\& [@v  
Decenter X tolerance on surface 2 oKqFZ,m[  
TSDX   2            -0.20000000     0.51705427    -0.02697807     0.20000000     0.51705427    -0.02697807 0aN}zUf  
Change in Focus                :       0.000000                            0.000000 2wimP8  
Decenter Y tolerance on surface 2 >[3,qP]E  
TSDY   2            -0.20000000     0.51705427    -0.02697807     0.20000000     0.51705427    -0.02697807 38.J:?Q  
Change in Focus                :       0.000000                            0.000000 EG:WE^4  
Tilt X tolerance on surface (degrees) 2 e, 3(i!47  
TSTX   2            -0.20000000     0.35349910    -0.19053324     0.20000000     0.35349910    -0.19053324 \/dm}' `  
Change in Focus                :       0.000000                            0.000000 Xcpm?
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Tilt Y tolerance on surface (degrees) 2 .Yv.-A=ZIg  
TSTY   2            -0.20000000     0.35349910    -0.19053324     0.20000000     0.35349910    -0.19053324 +53zI|I  
Change in Focus                :       0.000000                            0.000000 2dlV'U_g  
Decenter X tolerance on surface 3 2n r UE  
TSDX   3            -0.20000000     0.53419039    -0.00984195     0.20000000     0.53419039    -0.00984195 .2-JV0
  
Change in Focus                :       0.000000                            0.000000 s7cyo ]  
Decenter Y tolerance on surface 3 ~rfjQPbh9x  
TSDY   3            -0.20000000     0.53419039    -0.00984195     0.20000000     0.53419039    -0.00984195 \36;csu  
Change in Focus                :       0.000000                            0.000000 T7_ SO,X  
Tilt X tolerance on surface (degrees) 3 $Lbe5d?\  
TSTX   3            -0.20000000     0.42861670    -0.11541563     0.20000000     0.42861670    -0.11541563 u! FSXX<  
Change in Focus                :       0.000000                            0.000000 1X}Tp\e  
Tilt Y tolerance on surface (degrees) 3 Tsp-]-)  
TSTY   3            -0.20000000     0.42861670    -0.11541563     0.20000000     0.42861670    -0.11541563 ]6[d-$#^ko  
Change in Focus                :       0.000000                            0.000000 Y,"MQFr(o  
Irregularity of surface 1 in fringes @BW8`Ky
1  
TIRR   1            -0.20000000     0.50973587    -0.03429647     0.20000000     0.57333868     0.02930634 *^5,7}9Qo  
Change in Focus                :       0.000000                            0.000000 #\["y%;W  
Irregularity of surface 2 in fringes >o=p5#{  
TIRR   2            -0.20000000     0.53400904    -0.01002330     0.20000000     0.55360281     0.00957047 Bj
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Change in Focus                :       0.000000                            0.000000 [$Bb'],k  
Irregularity of surface 3 in fringes <vuX " 8  
TIRR   3            -0.20000000     0.58078982     0.03675748     0.20000000     0.49904394    -0.04498840 RUtS_Z&  
Change in Focus                :       0.000000                            0.000000 #iDFGkK/  
Index tolerance on surface 1 fb;"J+
  
TIND   1            -0.00100000     0.52606778    -0.01796456     0.00100000     0.56121811     0.01718578 vfDb9QP  
Change in Focus                :       0.000000                            0.000000 OIT;fKl9  
Index tolerance on surface 2 X&8,.=kt"  
TIND   2            -0.00100000     0.55639086     0.01235852     0.00100000     0.53126361    -0.01276872 *03/:q^(  
Change in Focus                :       0.000000                           -0.000000 rB?c
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Worst offenders: Y@Y(;C"SW  
Type                      Value      Criterion        Change 9?c^~77  
TSTY   2            -0.20000000     0.35349910    -0.19053324 AwrK82  
TSTY   2             0.20000000     0.35349910    -0.19053324 1hS~!r'qqv  
TSTX   2            -0.20000000     0.35349910    -0.19053324 4,DsB'  
TSTX   2             0.20000000     0.35349910    -0.19053324 a $%[!vF  
TSTY   1            -0.20000000     0.42678383    -0.11724851 5^/[]*  
TSTY   1             0.20000000     0.42678383    -0.11724851 lHqx}n@e  
TSTX   1            -0.20000000     0.42678383    -0.11724851 r/2:O92E  
TSTX   1             0.20000000     0.42678383    -0.11724851 /vMyf),2  
TSTY   3            -0.20000000     0.42861670    -0.11541563 ~Xw?
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TSTY   3             0.20000000     0.42861670    -0.11541563 8m<<tv
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Estimated Performance Changes based upon Root-Sum-Square method: oy: MM  
Nominal MTF                 :     0.54403234 G'f"w5%qZv  
Estimated change            :    -0.36299231 dR:iUw:V  
Estimated MTF               :     0.18104003 xv
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Compensator Statistics: W F<V2o{k  
Change in back focus: s3 $Q_8H  
Minimum            :        -0.000000 qTF>!o#\:  
Maximum            :         0.000000 p\S3A(  
Mean               :        -0.000000 5zOSb$;  
Standard Deviation :         0.000000 YYW70k:  
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Monte Carlo Analysis: <vDm(-i3  
Number of trials: 20 GR `ncI$z  
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Initial Statistics: Normal Distribution 2zu~#qU[)M  
IIiN1 Lu,5  
  Trial       Criterion        Change 5V!XD9P'  
      1     0.42804416    -0.11598818 DU8LU*q'  
Change in Focus                :      -0.400171 |pSoBA9U  
      2     0.54384387    -0.00018847 8 GN{*Hg  
Change in Focus                :       1.018470 o#/iR]3  
      3     0.44510003    -0.09893230 A8GlE  
Change in Focus                :      -0.601922 !H\GHA'DO]  
      4     0.18154684    -0.36248550 #HYkzjb  
Change in Focus                :       0.920681 QPE.b-S  
      5     0.28665820    -0.25737414 [HDO^6U  
Change in Focus                :       1.253875 pUGfm  
      6     0.21263372    -0.33139862 l}c2l'  
Change in Focus                :      -0.903878 >irT|VTf  
      7     0.40051424    -0.14351809 ][#*h`I  
Change in Focus                :      -1.354815 2tm-:CPG  
      8     0.48754161    -0.05649072 (`? snMc  
Change in Focus                :       0.215922 J5( D7rp#  
      9     0.40357468    -0.14045766 o;_bs~}y  
Change in Focus                :       0.281783 [{LnE:  
     10     0.26315315    -0.28087919 [:@?,?V\N  
Change in Focus                :      -1.048393 ;XQ lj?:  
     11     0.26120585    -0.28282649 K/m)f#  
Change in Focus                :       1.017611 8w?\_P7QA  
     12     0.24033815    -0.30369419 l0xFt ~l  
Change in Focus                :      -0.109292 1t=X: ]0j  
     13     0.37164046    -0.17239188 q%Jy
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Change in Focus                :      -0.692430 Ltd?
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     14     0.48597489    -0.05805744 ?QT"sj64w  
Change in Focus                :      -0.662040 .ASwX  
     15     0.21462327    -0.32940907 HKN"$(Q  
Change in Focus                :       1.611296 9Ru%E>el-  
     16     0.43378226    -0.11025008 f<altz_\q  
Change in Focus                :      -0.640081 slv
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     17     0.39321881    -0.15081353 `R52{B#&/  
Change in Focus                :       0.914906 3b\8907  
     18     0.20692530    -0.33710703 C!k9JAa$Z  
Change in Focus                :       0.801607 ]N <]  
     19     0.51374068    -0.03029165 s_Oh >y?Aq  
Change in Focus                :       0.947293 X+E\]X2  
     20     0.38013374    -0.16389860 'S4E
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Change in Focus                :       0.667010 W%9K5(e  
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Number of traceable Monte Carlo files generated: 20 0mD;.1:  
UtBlP+bE?y  
Nominal     0.54403234 !:O/|.+Vmf  
Best        0.54384387    Trial     2 [q+e]kD  
Worst       0.18154684    Trial     4 H;*a:tbxO+  
Mean        0.35770970 DkF2R @  
Std Dev     0.11156454 n]C%(v!u3  
`\F%l?aY  
"^ 6lvZP(  
Compensator Statistics: 2~&hstd%  
Change in back focus: <K#'3&*$s  
Minimum            :        -1.354815 zdjM%l);  
Maximum            :         1.611296 Rw/JPC"  
Mean               :         0.161872 4%!{?[$  
Standard Deviation :         0.869664 XHZ: mLf  
=2nn "YVP  
90% >       0.20977951               7moElh v  
80% >       0.22748071               ~C"k$;(n  
50% >       0.38667627               iIGI=EwZ  
20% >       0.46553746               &vFqe,Z  
10% >       0.50064115                .A*VLF*m  
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End of Run.  z _O,Y  
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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 b\?7?g  
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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 ]{,Gf2v;;d  
+HOCVqx  
不吝赐教

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？

90% >       0.20977951                 16"#i  
80% >       0.22748071                 Ne3R.g9;Z  
50% >       0.38667627                 &^V~cJ  
20% >       0.46553746                 v`y6y8:>  
10% >       0.50064115
8RVS)D''  
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最后这个数值是MTF值呢，还是MTF的公差？ 'eDJ@4Xm  
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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？？？   ^NXcLEaP*<  
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怎么没人啊，大家讨论讨论吗

没有人啊？？？

引用第2楼sansummer于2011-06-22 08:56发表的  : 'b/<x|  
90% >       0.20977951                 gNpJ24QK  
80% >       0.22748071                 J*fBZ.NO  
50% >       0.38667627                 v$wBxCY  
20% >       0.46553746                 "YU{Fkl#j  
10% >       0.50064115 jJZgK$5+  
....... 5 BtX63  

<?Wti_ /M  
o4b~4h{%  
这些数值都是MTF值

Criterion           : Geometric MTF average S&T at 30.0000 cycles per mm   )u]9193  
Mode                : Sensitivities "1`Oh<={b  
Sampling            : 2 ((tv2  
Nominal Criterion   : 0.54403234 wkqX^i7ls  
Test Wavelength     : 0.6328 G0O#/%%  
bwM@/g%DL  
波长632.8nm 时 mtf 是 0.54403234  没达到0.6

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？ g;$Xq)Dd  
oAWzYu(v  
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？

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

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？

恩，多多尝试