United States Patent 3,555,283
January 12, 1971

Solid State Light Emitting Diode Wherein Output Is Controlled By Controlling Election Population Of An Intermediate Level With An Auxiliary Light Source.
Hermann Georg Grimmeiss
Peter Johannes Philippus Gerardus Simons

Filed February 24, 1965
Image of US PATENT 3,555,283

Abstract of the Disclosure

A controllable injection recombination radiation or light source comprising a semiconductor having an intermediate level in its forbidden gap is described. The output radiation is controlled or modulated by controlling or modulating the electron population of the intermediate level using an auxiliary source of radiation to irradiate the semiconductor.
Figure descriptions: cover graphic

  • shows schematically an example of an energy diagram of a semiconductor body used in a semiconductor arrangement according to the invention.

 Citations [54]:
3,070,698 12/1962 Bloenbergen 3,333,101 07/1967 Bell 3,171,031 02/1965 Yariv 3,229,104 01/1966 Ratz 3,304,430 02/1967 Biard et al 3,245,002 04/1966 Hall
National Museum of American History
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