documentclass[tikz,border=3.14mm]{standalone}
usepackage{tikz-3dplot}
usetikzlibrary{3d}
begin{document}
tdplotsetmaincoords{60}{20}
begin{tikzpicture}[tdplot_main_coords]
 path (4.5,0,4) coordinate (P);
 begin{scope}[canvas is xy plane at z=0,transform shape]
  draw (-4,-2) rectangle (4,2);
  draw (-3.9,-1) -- (3.9,-1) node[right] {$d$}
  (-3.9,1) -- (3.9,1) node[right] {$d'$};
  foreach X in {-3.8,-3.5,...,3.8}
   {draw[dashed] (X,1) -- (P) (X,-1) -- (P);}
 end{scope}
end{tikzpicture}
end{document}