From: hwabnig@.-   
      
   On Wed, 28 Aug 2013 08:54:26 -0700 (PDT), alfierij1@udayton.edu wrote:   
      
   >Hello,   
   >   
   >I am modeling a Slit Lamp microscope in Zemax.   
   >   
   >I am having difficulty modelling the Galilean Telescope (Beam Expander)   
   followed by another lens.   
   >   
   >I set the 3 lenses as paraxial.   
   >   
   >The 1st lens of the telescope has a focal length of -8.540086 mm.   
   >The 2nd lens of the telescope has a focal length of 25.620258 mm.   
   >The magnification of this system is supposed to be 3.   
   >Collimated light is supposed to exit the 2nd lens, but the rays still diverge   
   according to the 1st lens' focal length.   
   >   
   >The 3rd lens has a focal length of 125 mm, which is where the final focus of   
   the system is supposed to be, but the rays still diverge according to the 1st   
   len's focal length.   
      
   Can you upload the zemax file to somewhere?   
      
   Does not see the 2nd lens?   
      
   w.   
      
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