Radiant energy – Invisible radiant energy responsive electric signalling – Infrared responsive
Patent
1978-09-05
1980-09-02
Willis, Davis L.
Radiant energy
Invisible radiant energy responsive electric signalling
Infrared responsive
250342, G01J 100
Patent
active
042208599
ABSTRACT:
A detector for detecting electromagnetic radiation within the infra red region of the electromagnetic spectrum comprising a pyro-electric transducer positioned so as to intercept electromagnetic radiation focussed by a converging reflector system wherein said converting reflector system is at least partially frusto-conical.
REFERENCES:
patent: 3751664 (1973-08-01), Falbel
patent: 3861458 (1975-01-01), Ostrander et al.
patent: 4009392 (1977-02-01), Hanley
patent: 4081680 (1978-03-01), Keller
IM Electronics Limited
Willis Davis L.
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