From: andrew@cucumber.demon.co.uk   
      
   In article ,   
   	gfretwell@aol.com writes:   
   > On Sun, 3 Aug 2014 15:41:32 +0100, "gareth"   
   >  wrote:   
   >   
   >> wrote in message   
   >>news:5c055c35-311b-4b96-b30f-0fcaa9e54234@googlegroups.com...   
   >>> Can an LED emit more than one wavelength of light?   
   >>   
   >>The White LEDs must do so.   
   >>   
   >   
   > There is still only one color per junction as far as I know. They use   
   > multiple junctions to get multiple colors.   
      
   or just a blue LED and phosphors to generate the longer wavelength colors.   
      
   --   
   Andrew Gabriel   
   [email address is not usable -- followup in the newsgroup]   
      
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    * Origin: you cannot sedate... all the things you hate (1:229/2)