From: Geoffrey_dot_landis@sff.net   
      
   Alex Terrell wrote:   
      
   > So how about a 10cm square Fresnel lens focusing light onto a 1cm   
   > square solar cell, mounted a 10cm square thermally conducitng   
   > (aluminium?) substrate.   
      
   Essentially the Deep Space 1 "SCARLETT" array design.   
      
   > I think this would mass more than a tradional Peter Glaser design,   
      
   Mass is arguable, but it's more complex   
   >but if it proves difficult or expensive to manufacture solar cells in   
   > space, and space sourced aluminium is cheap, it may be viable.   
      
      
   Right.   
      
   It's been proposed-- in fact, it was proposed right back in the original   
   Design Reference days; it was the main alternative to the Baseline   
   concept.   
      
   --   
   Geoffrey A. Landis   
   Mars Guy and Photovoltaic scientist   
   Any opinions here are my own, and not official announcements of any   
   agency I may work for   
   http://www.sff.net/people/geoffrey.landis   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)