%%
%% Ein Beispiel der DANTE-Edition
%%
%% 7. Auflage
%%
%% Beispiel 32-03-30 auf Seite 740.
%%
%% Copyright (C) 2016 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{169.16928pt}
\setlength\parindent{0pt}
%StartShownPreambleCommands
\usepackage{pst-optexp}
%StopShownPreambleCommands
\begin{document}
\begin{pspicture}[showgrid](0,-0.3)(3,2.3)
\pnode(1.5,1){A}\pnode(3,1){B}
\begin{optexp}
\optbox[position=start](A)(B)
\lens[n=2](A)(B)
\drawwidebeam[beamwidth=0.2, fillstyle=solid,
fillcolor=green!40]{1}{2}(B)
\end{optexp}
\end{pspicture}
\end{document}
