Infrared radiation-burglary detector

Details Infrared radiation-burglary detector Infrared radiation-burglary detector

1976-11-04

1978-05-02

Borchelt, Archie R.

Radiant energy

Invisible radiant energy responsive electric signalling

Infrared responsive

250338, 250353, 350 14, G08B 1318, G01J 102

Patent

active

040876888

ABSTRACT:
An infrared radiation-burglary detector comprising an optical system for focusing the radiation upon a radiation receiver. One or more internally reflecting prism surfaces enclose the axis of the optical system and are arranged substantially parallel to such axis.

REFERENCES:
patent: 3413468 (1968-11-01), Astheimer
patent: 3571572 (1971-03-01), Falbel
patent: 3777160 (1973-12-01), Bernt
patent: 3839640 (1974-10-01), Rossin
patent: 3864566 (1975-02-01), Simpson et al.

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