Fence or wall incorporating fibre-optic wave-guide

Details Fence or wall incorporating fibre-optic wave-guide Fence or wall incorporating fibre-optic wave-guide

1981-01-07

1983-02-01

Swann, III, Glen R.

Communications: electrical

Condition responsive indicating system

Specific condition

340550, 340600, G08B 1318

Patent

active

043718698

ABSTRACT:
To provide security against unauthorised crossing of a boundary, at least one fibre-optic wave-guide extends along the boundary. Light is directed into one end of the guide and the light leaving the guide is detected by an optical detector. An indication is given when the optical intensity of the detected light falls below a predetermined threshold, so as to warn when the wave-guide is disturbed significantly or cut through.
The manufacture of a strip or strand incorporating a fibre-optic wave-guide and for use in a security system is also disclosed.

REFERENCES:
patent: 4275294 (1981-06-01), Davidson

Affiliated with

Also associated with

Rating

Fence or wall incorporating fibre-optic wave-guide does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Fence or wall incorporating fibre-optic wave-guide, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Fence or wall incorporating fibre-optic wave-guide will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2409084