From: hwabnig@.-   
      
   On Sun, 4 Nov 2012 21:57:47 -0800 (PST), sia.asl@gmail.com wrote:   
      
   >Given a lens and a source-image at a known distance away from the lens, I'd   
   like to know what the lensed source looks like at different positions (for   
   example, in case of a real image, I'd like to know what the lensed image looks   
   like on a screen    
   positioned on the other side of the lens.)   
   >   
   >Are there any geometric-optics software that do this?   
   >   
   >Regards,   
   >Siavash   
   Every lens design software can do this.   
      
      
   w.   
      
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