From: oh2hvj@sral.fi   
      
   Phil Hobbs  writes:   
      
   >> What would be the best way to combine multiple LEDs to a 800um NA 0.22   
   >> fiber bundle ?   
   ...   
   >   
   > You aren't going to be able to do that very efficiently, no matter   
   > what you do.  What are you trying to do?   
      
   The end application is basically a transmission measurement of a 96-well   
   microplate. The fiber is used when moving the reading head in X-direction,   
   the plates move in the Y direction. Wish I could get rid of it, but moving the   
   whole source+detector system with the temperature controls etc. might be   
   difficult.   
      
   The multiple LEDs come from the requirement of wideband source (white LED+   
   a few to fill in 360nm-400, 430-500 and 780nm).   
      
   We had problems focusing all the LEDs to fiber end with simple plastic   
   optics, would a small integrating sphere lose a lot of light ?   
      
      
      
   --   
   Mikko   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)