Radiant energy – Photocells; circuits and apparatus – Photocell controlled circuit
Patent
1982-11-30
1985-12-03
Westin, Edward P.
Radiant energy
Photocells; circuits and apparatus
Photocell controlled circuit
136256, 357 30, H01L 3100
Patent
active
045567905
ABSTRACT:
A photodetector, and a method for detecting electromagnetic radiation, is disclosed. The photodetector includes a body which undergoes a detectable, internal physical or chemical change when exposed to electromagnetic radiation, as well as means for detecting this change. The photodetector also includes a substantially periodic surface which increases the efficiency with which incident electromagnetic radiation is coupled onto the photodetector.
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Glass Alastair M.
Liao Paul F.
AT&T Bell Laboratories
Tiegerman Bernard
Westin Edward P.
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