Transportable fibre optic apparatus for use in a security system

Details Transportable fibre optic apparatus for use in a security system Transportable fibre optic apparatus for use in a security system

1980-06-25

1983-01-25

Lee, John D.

Radiant energy

Ionic separation or analysis

Static field-type ion path-bending selecting means

250227, 340555, G02B 514, G08B 1318

Patent

active

043700209

ABSTRACT:
Apparatus which comprises at least one length of flexible optic fibre, storage means for receiving the length of optic fibre, means for transmitting an optical signal along the length of optic fibre, and means for detecting an optical signal in the length of optic fibre. There is also provided a communication or security system which comprises at least one loop of flexible optic fibre, a reel on which the optic fibre is coilable, means for transmitting an optical signal along the loop of optic fibre, and means for detecting an optical signal in the length of optic fibre.

REFERENCES:
patent: 3943021 (1976-03-01), Lindsey
patent: 4095872 (1978-06-01), Stieff et al.
patent: 4275294 (1981-06-01), Davidson
patent: 4307386 (1981-12-01), Bridge

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