SYNOPSYS 光学设计软件课程十四：更具挑战性的优化

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从平面平行的表面开始设计了一个七片透镜的镜头，这个镜头很接近我们的设计要求。该课程旨在展示PSD III优化算法的速度。 Fm`c
在本课程中，我们将从相同的初始结构开始 - 但在这种情况下，我们希望四个视场都能实现高MTF，并将目录玻璃类型替换为前一课程的玻璃模型。为了做到这一点，我们将使用自动实际玻璃插入程序ARGLASS (3QG
这是输入：

<]'1YDA
    RLE                 ! The starting system. 启动系统 dH~i
    ID TEST PSD III d#u*NwY}
    OBB 0 20 12.7 nRh.;G
    WAVL CDF NflRNu:-
    UNITS MM eK =v<X
    1 TH 5 GLM 1.6 50 2 TH 5 ;{Tf:j'g
    3 TH 5 GLM 1.6 50 4 TH 5 vxl!`$Pi
    5 TH 5 GLM 1.6 50 6 TH 5 N(Xg#m
    7    TH 5 GLM 1.6 50 H57wzG{xG
    8    TH 5 Xr]<v%,C
    9    TH 5 GLM 1.6 50 gmdA1$c
    10    TH 5 MxLi'R=
    11    TH 5 GLM 1.6 50 * %w8bB
    12    TH 5 ?;ovh nY)
    13    TH 5 GLM 1.6 50 )5Ofr-Y
    14    TH 50 r@ v&~pL
    15 &m{vLw
    APS 7 %^}|HG*i??
    END ^9 Pae)
    PAD/U         ! Show the initial system. 显示初始系统 Ry"N_Fb
    PROJECT       ! Start a timer, then define a symbol, AWT, for the aperture weight启动计时器，然后为孔径权重定义符号AWT >m4HCs>
    AWT: 0.5     ! almost equal weight over aperture孔径权重几乎相等 hDD]Kc;G^1
    QUIET         ! not showing everything on the monitor speeds things up在显示屏上没有显示F数的一切东西 aSQvtv)91
    PANT          ! Define variables. 定义变量 d5l].%~
    CUL 1.9       ! Set upper limit of 1.9 on index variables. 在折射率变量上设置上限1.9 y aLc~K
    FUL 1.9 ?~WDlj3
    VY 1 YP1       ! Vary the paraxial stop position. 改变了近轴光阑位置 QO <.l`F
    VLIST RAD 1 2 3 4 5 6 7 8 9 10 11 12 13 14 'FwNQzzt
    VLIST TH ALL 0%;y'd**Ck
    VLIST GLM ALL _OvIi~KW+
    END =O'>H](Q
J:G~9~V^
    AANT                ! Start of merit function definition. 开始评价函数定义 DH'0#
    AEC q*d@5
    ACC +JPHQx'W
    M 33 2 A GIHT |$sMzPCxOk
    GSR AWT 5 5 M 0     ! Note how weights are assigned to the several field points. 注意如何将权重分配给多个视场点 xOBzT&
    GNR AWT 4 4 M .3   ! This creates a ray grid at the .3 field point这会在.3视场点处创建光线网格 o 76QQ+hP
    GNR AWT 4 4 M .6   ! These for the 0.6 field point这些为0.6视场点 ?/FCq6o
    GNR AWT 5 4 M .75   ! These for the 0.75 field point这些为0.75视场点 Bb@m-+f
    GNR AWT 4 4 M .8   ! These for the 0.8 field point这些为0.8视场点 %tT=q^%5
    GNR AWT 4 4 M 1      ! Full field全视场 D5jZ;z}
    END Is#w=s}2
zjUT:#(k
    SNAP 100 P= nu&$;
    DAMP 1000 `;v>fTcy
    SYNOPSYS 5 q.Vcb!*$
    SYNOPSYS 10 hp!. P1b
    SYNOPSYS 15 q+?>shqsZ
    SYNOPSYS 100 ;ep@ )Y
    ANNEAL 50 10 @;g|styh^
oz#;7 ?9
    LOUD           ! Restore output to the monitor将输出恢复到探测器 z3(:a'
    MERIT? CT#u+]T
jb0LMl}/A
    STORE 3           ! Store the results in the library. 将结果存储在库中 khS >
    ARGLASS 3 QUIET ! Start of ARGLASS input. 开始ARGLASS输入 8|H^u6+yz
    CAT S           ! Specify the Schott glass catalog. 指定Schott玻璃目录 KdU&q+C^
    INCLUDE 1 TO 13 ! Do all surfaces.执行所有表面 YCS8qEP&
    PREF           ! Only use preferred glass types仅使用首选玻璃类型 {+^qm8n
     SAFE           ! and environmentally safe glasses.环保玻璃 )R5=GHmL
    GO               ! Execute ARGLASS. 执行ARGLASS y-k]Tr
5#hsy;q;[
    PROJECT                         ! See how long the job took看看工作花了多长时间 {[$JiljD
     MOF M 0 40 80 0 Q 30 20 10      ! Calculate the MTF over field. 计算视场上的MTF y-=YXqj
    作业运行约30秒，并产生此结果： ?*: mR|=
    RLE ^:64(7
    ID TEST PSD III                            180 k(%h{0'
     WAVL .6562700 .5875600 .4861300 o}VW%G"
     APS               1 aOK,Mm:iO
     UNITS MM .C?rToCY
     OBB  0.000000     20.00000     12.70000    -25.39490      0.00000      0.00000 <6[P5>
    12.70000    0 AIR _1U7@v:<@
       1 RAD     63.9324304819396   TH      6.13775631 9#D?wR#J=
       1 N1 1.82743442 N2 1.83402633 N3 1.84979432 ZZ@1l
       1 CTE   0.584000E-05 DqbU$jt`
    1    GTB S    'N-LASF40        ' #Ss lH
    2    RAD    121.4260973202004   TH      1.00000000 AIR %MUh_63bB
    3    RAD     38.9734739086511   TH     20.57680176 i.Jk(%c
       3 N1 1.72508287 N2 1.72915286 N3 1.73846093 d>r_a9 .u
       3 CTE   0.581000E-05 0gOB$W
    3    GTB S    'N-LAK34         ' N9jSiRJ
    4    RAD     87.2688769717594   TH      1.01574402 AIR !3T,{:gyrI
    5    RAD     76.7614323395048   TH      3.26054685 [|E|(@J
       5 N1 1.72090550 N2 1.72827542 N3 1.74642643 ewD=(yr
       5 CTE   0.940000E-05 sUTh}.[5
    5    GTB S    'N-SF10          ' Hb|y`Ok
    6    RAD     19.7361513224512   TH     21.84758786 AIR 6p1)wf.J
    7    RAD    -29.7587962681538   TH      1.00000000 ?84B0K2Ns
       7 N1 1.83649445 N2 1.84665729 N3 1.87209365 .W1i3Z6g
       7 CTE   0.846000E-05 W\l"_^d*
    7    GTB S    'N-SF57          ' NP< {WL#
    8    RAD    -38.0771643426431   TH      1.00000000 AIR :HTV8;yc
    9    RAD    148.7057065172241   TH      6.45696908 gW(7jFl
       9 N1 1.91038602 N2 1.92285755 N3 1.95457944 6i.!C5YX]
       9 CTE   0.590000E-05 ,8/Con|o
    9    GTB S    'N-SF66          ' )mvD2]fK
    10    RAD     84.7349933920333   TH      1.28380951 AIR A:5B6Z
    11    RAD    116.5460118813826   TH     25.45671730 u{dI[?@
      11 N1 1.64820928 N2 1.65159874 N3 1.65934342 2,.;Mdl
      11 CTE   0.710000E-05 T>\r}p
    11    GTB S    'N-LAK7          ' 6Lhfb\2?
    12    RAD    -40.6054550188090   TH     18.94463076 AIR wS%aN@ay3
    13    RAD     70.2471757058936   TH     25.49467569 E,g5[s@
      13 N1 1.84254602 N2 1.85024035 N3 1.86897227 #:st>V_h
      13 CTE   0.737000E-05 #k*P/I~
    13    GTB S    'N-LASF9         ' wdzZ41y1
    14    RAD     73.0342740343945   TH     16.56312158 AIR   15 CV      0.0000000000000   TH      0.00000000 AIR LA%t'n h
    END

ARGLASS功能允许您过滤一些选项，这过滤项会影响程序选择玻璃。例如，您可能只需要便宜的玻璃或耐酸性良好的玻璃。在本练习中，我们只想使用具有良好环境特性的类型。这是选择的内容：

oGa8#>
    --- ARGLASS 3 QUIET ! START OF ARGLASS INPUT. k5ZkD+0Jo
    Lens number     3 ID TEST PSD III Wo[*P\8
     GLASS N-LASF40         HAS BEEN ASSIGNED TO SURFACE   1; MERIT =   0.248127 xHo iu$i6
     GLASS N-LAK34          HAS BEEN ASSIGNED TO SURFACE   3; MERIT =   0.370709 _}RzJKl@
     GLASS N-SF10           HAS BEEN ASSIGNED TO SURFACE   5; MERIT =   0.772238 0X'2d
     GLASS N-SF57           HAS BEEN ASSIGNED TO SURFACE   7; MERIT =   0.290459 M);@XcS
     GLASS N-SF66           HAS BEEN ASSIGNED TO SURFACE   9; MERIT =    10.2718 f~{@(g&Gl
     GLASS N-LAK7           HAS BEEN ASSIGNED TO SURFACE  11; MERIT =   0.214292 <~}#Q,9
    GLASS N-LASF9          HAS BEEN ASSIGNED TO SURFACE  13; MERIT =   0.203867

要检查这些玻璃的属性，我们输入命令

5oP31
列出玻璃属性，所有玻璃

并得到一个列表，其中一部分如下所示：

S85}&\m&4
    *********************************************************** B]-~hP
    GLASS ATTRIBUTE FOR SURFACE NO.   1 .o?"=Epo
    SCHOTT         N-LASF40 ck"lX[d1
    GLASS IS A PREFERRED TYPE. 6;8Jy
    GLASS IS ENVIRONMENTALLY SAFE (NO Pb OR As). S_EN,2'e
R]y[n;aGC
    PRICE   BUBBLE   HUMIDITY   STAIN   ACID RESIST   ALKALI RESIST   SP GRAVITY _xVtB1@kLM
      6.0       1        1       2        5        1       4.55  THIS GLASS HAS A LIST OF TRANSMISSION VALUES ATTACHED (ev(~Wc
    VALID RANGE OF TRANSMISSION DATA: !f^'-
    LOW     HIGH pf'-(W+
     0.365   2.500 wf[B-2q)
    GLASS HAS SELLMEIER INDEX COEFFICIENTS: M*x1{g C/
     0.1985503E+01 0.2740570E+00 0.1289457E+01 0.1095833E-01 0.4745516E-01 0.9690853E+02 /^F$cQX(
    GLASS HAS 6 DNDT VALUES FROM GLASS TABLE: O^W.5SaR
     8.1000E-06  1.2500E-08 -1.7300E-11  8.2700E-07  1.0800E-09  2.3800E-01 ;#F7Fp*U
    THERMAL COEFFICIENT (ALPHA) =  0.584E-05 ?-g/hXx;
    ***********************************************************

如果这看起来像你所追求的那样，将ADT监视器添加到AANT文件中并进一步优化以修复薄透镜。分析镜头以找出问题，然后告诉AANT。
我们建议您自己运行此练习。尝试更改一些视场权重或孔径权重，然后再次运行。结果对这些变化非常敏感，当你设计自己的镜片时，你需要了解哪些控制有效，哪些控制无效。
这个例子从平面平行板开始，产生了一个相当不错的镜头。如果你运行它会发生什么。
（该程序以非零光焦度开始，根据其规则分配，并发现更多设计。）我们尝试了解这个问题，并得到了更好的解决方案。调整输入变量以查看发生的情况。

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