04211955 is referenced by 458 patents and cites 4 patents.

An integrated circuit chip containing one or more light-emitting diodes is mounted within a light-diffusing encasement having a standard incandescent light bulb lamp base. The integrated circuit chip also contains a rectifier and voltage regulator circuit. The resulting solid state lamp may then be used to replace any standard incandescent light bulb, as it can be inserted in any existing standard A.C. or D.C. lamp sockets. The encasement may be a standard hollow light bulb, or, for maximum light diffusion, a solid transparent or translucent plastic in which the chip is embedded.

Title
Solid state lamp
Application Number
5/882727
Publication Number
4211955
Application Date
March 2, 1978
Publication Date
July 8, 1980
Inventor
Stephen W Ray
616 Graydon Ave., Apt. 4, Norfolk, 23507
VA, US
Agent
Sughrue Rothwell Mion Zinn and Macpeak
IPC
H05B 43/00
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