Research/Patents/US 4746906
US 4746906

DUAL TECHNOLOGY INTRUDER DETECTION SYSTEM WITH MODULAR OPTICS

Assignee

DETECTION SYSTEMS, INC., A CORP. OF NY

Filed

Jun 30, 1986

Granted

May 24, 1988

Location

ROCHESTER NY US

Abstract

Disclosed herein is a dual technology intruder detection system which features a modular optical system by which the field of protection of one subsystem can be changed relative to the field of view of the other by merely altering the orientation of one optical module relative to another. Such modular optical system includes a multifaceted reflector having two sets of planar reflective facets. Depending on the orientation of such multifaceted reflector relative to a separate spherical reflector, two different fields of view are provided, whereby false alarm-producing can be avoided.

Source: Google Patents

35 USC §181 Secrecy Order

Imposed

Jan 9, 1987

Rescinded

Mar 11, 1987

Duration

2 months

Inventor

  • 1DAVID B. LEDERER

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Back to patent indexSource: USPTO 35 USC §181 secrecy order records