<html><head><meta name="color-scheme" content="light dark"></head><body><pre style="word-wrap: break-word; white-space: pre-wrap;">%% 
%%  Ein Beispiel der DANTE-Edition
%% 
%% 
%%  Copyright (C) 2010 Herbert Voss
%% 
%%  It may be distributed and/or modified under the conditions
%%  of the LaTeX Project Public License, either version 1.3
%%  of this license or (at your option) any later version.
%% 
%%  See http://www.latex-project.org/lppl.txt for details.
%% 
%% 
%% ==== 
% Show page(s) 1
%% 
\documentclass[]{exaarticle}
\pagestyle{empty}
\setlength\textwidth{352.81416pt}
\setlength\parindent{0pt}
\StartShownPreambleCommands
\usepackage{pst-optic}
\StopShownPreambleCommands
\begin{document}
\begin{pspicture}(-7.5,-5.5)(7.5,3) \rput(0,0){%
 \lens[focus=1.5,OA=-2,AB=0.5,XO=-5,lensGlass=true,lensWidth=0.4,yBottom=-4,
       yTop=4,drawing=false,lensScale=0.4,nameF=F_1,nameFi=F'_1]
 \psline[linewidth=1pt](xLeft)(xRight)}
\pnode(! XO 1){UPlens1} \pnode(! XO -1){DOWNlens1} \Transform
\rput(0,0){%
 \lens[focus=2,XO=3,lensGlass=true,lensWidth=0.4,yBottom=-4,yTop=4,drawing=false,
       nameF=F_2,nameFi=F'_2,spotF=90,spotFi=90]}
 \psline{-&gt;}(A1)(B1)\psline{-&gt;}(A'1)(B'1)\uput[270](A1){A}\uput[90](B1){B}
 \uput[270](B'1){$\mathrm{B_1}$}\uput{0.7}[90](A'1){$\mathrm{A_1}$}
 {\psset{linecolor=red}
  \rayInterLens(I11)(B'1){3}{Inter1L2}\rayInterLens(B1)(O1){3}{Inter2L2}
  \rayInterLens(UPlens1)(B'1){3}{Inter3L2}\rayInterLens(DOWNlens1)(B'1){3}{Inter4L2}
  \psline(B1)(I11)(B'1)(Inter1L2)  \psline(B1)(Inter2L2)
  \psline(B1)(UPlens1)(Inter3L2)   \psline(B1)(DOWNlens1)(Inter4L2)  \psset{length=5}
  \Parallel(B'1)(O)(Inter3L2){B1inftyRigth}\Parallel(B'1)(O)(Inter4L2){B2inftyRigth}
  \Parallel(B'1)(O)(Inter2L2){B3inftyRigth}\Parallel(B'1)(O)(Inter1L2){B3inftyRigth}
  {\psset{length=-5,linestyle=dashed}
   \Parallel(B'1)(O)(Inter3L2){B1inftyLeft}\Parallel(B'1)(O)(Inter4L2){B2inftyLeft}
   \Parallel(B'1)(O)(Inter2L2){B3inftyLeft}\Parallel(B'1)(O)(Inter1L2){B3inftyLeft}
   \pcline[nodesep=6](B'1)(O)}
   \pspolygon[style=rayuresJaunes,linestyle=none](B1)(UPlens1)(Inter3L2)%
     (B1inftyRigth)(B2inftyRigth)(Inter4L2)(DOWNlens1)
   \psline(B1)(UPlens1)(Inter3L2)(B1inftyRigth)
   \psline(B2inftyRigth)(Inter4L2)(DOWNlens1)(B1) }
  \rput(7,0){\eye}
\end{pspicture}
\end{document}
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