Friday 6 December 2013

Development of LED Lights

03:30  Unknown  No comments

http://www.pinterest.com/pin/374854368955999216/
  • 1961 - Development of Infrared LED
  • 1962 - Development of 1st visible red LED
  • 1972 - Development of first yellow LED
  • 1979 - Development of world's first blue LED
  • 1976 - Development of high brightness LED


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