Title:
CONVERSION OF ELECTRICAL ENERGY INTO LIGHT
United States Patent 3530325
Inventors:
Mehl, Wolfgang
Funk, Burkhard
Publication Date:
09/22/1970
Assignee:
AMERICAN CYANAMID CO
Other Classes:
257/103, 257/100, 257/E33.002, 257/99, 257/632
International Classes:
H01L33/00; H05B33/26; H01J63/04; H01J1/62