SYNOPSYS 光学设计软件课程十四：更具挑战性的优化

w.YiO5|y
sE Q=dcK
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。 #\ X#w<\?
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 =pS5uR~
这是输入：

ZL&g_jC
    RLE                 ! The starting system. 启动系统 V`XNDNJ:
    ID TEST PSD III ECrex>zr%
    OBB 0 20 12.7 j)/nKh4O
    WAVL CDF yl7&5)b#9
    UNITS MM t>`asL
    1 TH 5 GLM 1.6 50 2 TH 5 @oV9)
    3 TH 5 GLM 1.6 50 4 TH 5 hp5|@
    5 TH 5 GLM 1.6 50 6 TH 5 C8 xZ;V]
    7    TH 5 GLM 1.6 50 |ZRagn30
    8    TH 5 @M_oH:GV
    9    TH 5 GLM 1.6 50 0Tx{3#
    10    TH 5 LHkc7X$
    11    TH 5 GLM 1.6 50 %'s>QF]'
    12    TH 5 :+z4~% jA
    13    TH 5 GLM 1.6 50 ;7E7!t^
    14    TH 50 4,CXJ2
    15 XkXHGDEf1
    APS 7 b`~p.c%(
    END MbZJ;,e?
    PAD/U         ! Show the initial system. 显示初始系统 pgE}NlW
    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 ,+meT`'vn
    AWT: 0.5     ! almost equal weight over aperture孔径权重几乎相等 zxbpEJzpn
    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 W;'!gpa
    PANT          ! Define variables. 定义变量 jY%na HaI
    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 Rn9m]x
    FUL 1.9 / zB0J?
    VY 1 YP1       ! Vary the paraxial stop position. 改变了近轴光阑位置 JGsx_V1t
    VLIST RAD 1 2 3 4 5 6 7 8 9 10 11 12 13 14 D(AXk8Vub
    VLIST TH ALL 2[RoxKm
    VLIST GLM ALL $o0iLFIX/
    END 'rO!AcdLU
d%RC
    AANT                ! Start of merit function definition. 开始评价函数定义 G MX?
    AEC S+atn]eU@
    ACC :U3kW8;UMP
    M 33 2 A GIHT vd 0ljA
    GSR AWT 5 5 M 0     ! Note how weights are assigned to the several field points. 注意如何将权重分配给多个视场点 .<x&IJ /
    GNR AWT 4 4 M .3   ! This creates a ray grid at the .3 field point这会在.3视场点处创建光线网格 r&R B9S@*h
    GNR AWT 4 4 M .6   ! These for the 0.6 field point这些为0.6视场点 Y2ZT.l
    GNR AWT 5 4 M .75   ! These for the 0.75 field point这些为0.75视场点 pb ~uE
    GNR AWT 4 4 M .8   ! These for the 0.8 field point这些为0.8视场点 }L+L"l&
    GNR AWT 4 4 M 1      ! Full field全视场 w$z}r
    END h]5C|M|
7hlO#PYZ
    SNAP 100 A: 5x|
    DAMP 1000 j53*E )d
    SYNOPSYS 5 J'SZ
    SYNOPSYS 10 g`vny)\7/
    SYNOPSYS 15 ;#xmQi'`
    SYNOPSYS 100 z(_Ss@ $
    ANNEAL 50 10 Bm.:^:&k
K9$>Yxe|
    LOUD           ! Restore output to the monitor将输出恢复到探测器 P"y`A}Bx
    MERIT? %C~1^9uq
+*ZO&yJQ^<
    STORE 3           ! Store the results in the library. 将结果存储在库中 Y;@>b{s
    ARGLASS 3 QUIET ! Start of ARGLASS input. 开始ARGLASS输入 F)&@P-9+
    CAT S           ! Specify the Schott glass catalog. 指定Schott玻璃目录 ]>LhkA@V
    INCLUDE 1 TO 13 ! Do all surfaces.执行所有表面 5!DBmAB
    PREF           ! Only use preferred glass types仅使用首选玻璃类型 :km61
     SAFE           ! and environmentally safe glasses.环保玻璃 V5sg#|&
    GO               ! Execute ARGLASS. 执行ARGLASS %k-3?%&8
\O*-#}~\
    PROJECT                         ! See how long the job took看看工作花了多长时间 6*B19+-
     MOF M 0 40 80 0 Q 30 20 10      ! Calculate the MTF over field. 计算视场上的MTF WQ[_hg|k
    作业运行约30秒，并产生此结果： cZB7fmq%
    RLE "HElB9
    ID TEST PSD III                            180 -8:&>~4`
     WAVL .6562700 .5875600 .4861300 AsAT_yv#
     APS               1 !sDh4jQ`
     UNITS MM y.#")IAF
     OBB  0.000000     20.00000     12.70000    -25.39490      0.00000      0.00000 !%^^\,
    12.70000    0 AIR T (OW
       1 RAD     63.9324304819396   TH      6.13775631 42e|LUZg
       1 N1 1.82743442 N2 1.83402633 N3 1.84979432 <tF9V Jq
       1 CTE   0.584000E-05 ;1`fC@rI
    1    GTB S    'N-LASF40        ' @R/07&lBR
    2    RAD    121.4260973202004   TH      1.00000000 AIR 0fF(Z0R,
    3    RAD     38.9734739086511   TH     20.57680176 -=)+dCyB^
       3 N1 1.72508287 N2 1.72915286 N3 1.73846093 K`iv c N"
       3 CTE   0.581000E-05 iVp,e
    3    GTB S    'N-LAK34         ' (]0%}$Fo
    4    RAD     87.2688769717594   TH      1.01574402 AIR UR7g`/
    5    RAD     76.7614323395048   TH      3.26054685 WG N=Y~E
       5 N1 1.72090550 N2 1.72827542 N3 1.74642643 %_+2@\
       5 CTE   0.940000E-05 ,uo'c_f(e
    5    GTB S    'N-SF10          ' A'q#I>j`
    6    RAD     19.7361513224512   TH     21.84758786 AIR so"$m
    7    RAD    -29.7587962681538   TH      1.00000000 IE;~?W"
       7 N1 1.83649445 N2 1.84665729 N3 1.87209365 ^B(V4-|
       7 CTE   0.846000E-05 YP.5fq:
    7    GTB S    'N-SF57          ' P_?gq>E8
    8    RAD    -38.0771643426431   TH      1.00000000 AIR |uqf:V`z:
    9    RAD    148.7057065172241   TH      6.45696908 8P^ITL z%
       9 N1 1.91038602 N2 1.92285755 N3 1.95457944 c(:f\Wc3Z
       9 CTE   0.590000E-05 q*\x0"mS/
    9    GTB S    'N-SF66          ' :`-,Lbg
    10    RAD     84.7349933920333   TH      1.28380951 AIR *AoR==:ya
    11    RAD    116.5460118813826   TH     25.45671730 lsNrAA%m
      11 N1 1.64820928 N2 1.65159874 N3 1.65934342 +=q$x Ia
      11 CTE   0.710000E-05 /tP|b_7O
    11    GTB S    'N-LAK7          ' ^* J2'X38I
    12    RAD    -40.6054550188090   TH     18.94463076 AIR &y3OR1_Sm*
    13    RAD     70.2471757058936   TH     25.49467569 yRSTk2N@
      13 N1 1.84254602 N2 1.85024035 N3 1.86897227 #JgH}|&a$
      13 CTE   0.737000E-05 KNS.Nw7
    13    GTB S    'N-LASF9         ' [q/Abz'i
    14    RAD     73.0342740343945   TH     16.56312158 AIR   15 CV      0.0000000000000   TH      0.00000000 AIR qQA}Z*(m
    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：

GB>QK
    --- ARGLASS 3 QUIET ! START OF ARGLASS INPUT. 0J?~N`#O|
    Lens number     3 ID TEST PSD III lzYEx
     GLASS N-LASF40         HAS BEEN ASSIGNED TO SURFACE   1; MERIT =   0.248127 tE@;X=
     GLASS N-LAK34          HAS BEEN ASSIGNED TO SURFACE   3; MERIT =   0.370709 ~i~7na|
     GLASS N-SF10           HAS BEEN ASSIGNED TO SURFACE   5; MERIT =   0.772238 u+'tfFds&
     GLASS N-SF57           HAS BEEN ASSIGNED TO SURFACE   7; MERIT =   0.290459 S{;sUGcu
     GLASS N-SF66           HAS BEEN ASSIGNED TO SURFACE   9; MERIT =    10.2718 @\|_
     GLASS N-LAK7           HAS BEEN ASSIGNED TO SURFACE  11; MERIT =   0.214292 NdL,F;^
    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

7NDr1Z#B6V
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：

n` xR5!de
    *********************************************************** '+osf'&
    GLASS ATTRIBUTE FOR SURFACE NO.   1 AD1=[I3
    SCHOTT         N-LASF40 M[6:p2u
    GLASS IS A PREFERRED TYPE. p3 w
    GLASS IS ENVIRONMENTALLY SAFE (NO Pb OR As). POvP]G9'"
~~v3p>zRr
    PRICE   BUBBLE   HUMIDITY   STAIN   ACID RESIST   ALKALI RESIST   SP GRAVITY 9?0^ap,T
      6.0       1        1       2        5        1       4.55  THIS GLASS HAS A LIST OF TRANSMISSION VALUES ATTACHED Q^ pmQ
    VALID RANGE OF TRANSMISSION DATA: gW-V=LV (
    LOW     HIGH kPVO?uO
     0.365   2.500 7g%E`3)"
    GLASS HAS SELLMEIER INDEX COEFFICIENTS: 4:|S` jm
     0.1985503E+01 0.2740570E+00 0.1289457E+01 0.1095833E-01 0.4745516E-01 0.9690853E+02 i%/Jp[e\W>
    GLASS HAS 6 DNDT VALUES FROM GLASS TABLE: MC<PM6w
     8.1000E-06  1.2500E-08 -1.7300E-11  8.2700E-07  1.0800E-09  2.3800E-01 cIav&Zko
    THERMAL COEFFICIENT (ALPHA) =  0.584E-05 5qr'.m
    ***********************************************************

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。

查看本帖完整版本: [-- SYNOPSYS 光学设计软件课程十四：更具挑战性的优化 --] [-- top --]