POVRAY Raytracer descriptions by Friedrich A. Lohmueller

Biconvex Optical Lens

Sample for the use of "intersection"

Objects:    "sphere"
Methods: "declare", "intersection"

 //--------------------------  lens --------  
 #declare R   = 6.0;   //sphere radius
 #declare Over= 0.1;   //sphere overlap
 intersection{
  sphere{<0,0,0>,R  translate <0,0,-R+Over>}
  sphere{<0,0,0>,R  translate <0,0, R-Over>}
  texture{ T_Glass3 }
  interior{ I_Glass }
  translate < 0,1.2,0>}
 //---------------------------------- end --  

About the other details in the above scene
see the scene description for POV-Ray:
".txt" file or ".pov" file

Here is another sampel of lens:

About the details in this scene
see this scene description for POV-Ray:
".txt" file or ".pov" file