pst-optic example creates unrecoverable error for Ghostscript

Question

I'm trying to reproduce an example (figure 8) from the pst-optic documentation and it creates an unrecoverable error for Ghostscript (version 9.02). This is on a Mac using TeXShop. I have updated pst-optic to the latest version form TeXlive.

Here is the example:

\documentclass[11pt]{article}

\usepackage{pst-optic}
\usepackage{auto-pst-pdf}

\begin{document}

\begin{pspicture*}(-7.5,-2.75)(7.5,3) 
\rput(0,0){\lens[lensScale=0.6,XO=-4,nameF=F_1,nameA=A_1,nameB=B_1,
nameFi=F’_1,nameAi={ },nameBi={},nameO=O_1,focus=1,OA=-2,lensGlass=true, lensWidth =0.5]}
\pspolygon[style=rayuresJaunes,linestyle=none](B)(I)(B’)(I’)(B) 
\Transform 
\rput(0,0){\lens[lensScale=1.2,XO=2,focus=2,nameA=A’_1,spotA=90,nameB=B’_1,spotB=270,
nameO=O_2,nameAi=A’_2,spotAi=270,nameBi=B’_2,spotBi=90,nameF=F_2,nameFi=F’_2,
lensTwo=true,lensGlass=true,lensWidth=0.5]} 
\pspolygon[style=rayuresJaunes,linestyle=none](B)(I)(B’)(I’)(B) 
\end{pspicture*}

\end{document}  

Any help or pointers would be appreciated. (Note that I would have liked to add pst-optic as a tag to this question but do not have reputation to do so.)

Answer 1

It is not an accent for the points, it is a single quote:

\pspolygon[style=rayuresJaunes,linestyle=none](B)(I)(B')(I') 

And a polygon is always closed, you do not need the first point again at the end.