Motion detector

Details Motion detector Motion detector

1984-12-24

1987-02-24

LaRoche, Eugene R.

Radiant energy

Invisible radiant energy responsive electric signalling

Infrared responsive

250353, G01J 508

Patent

active

046459308

ABSTRACT:
A motion detector of the space surveillance type wherein an elongate box has parallel walls and an aperture opening toward sensors, and a pair of upwardly divergent reflectors is provided for at least one of the two sensing field planes, the reflectors making an angle of 20.degree. or less with each other.

REFERENCES:
patent: 4318089 (1982-03-01), Frankel et al.
patent: 4429225 (1984-01-01), Fumoto et al.
patent: 4479056 (1984-10-01), Zierhut

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