Magnetically activated fiber optic switch

Details Magnetically activated fiber optic switch Magnetically activated fiber optic switch

1987-10-27

1989-01-10

Lee, John D.

Radiant energy

Ionic separation or analysis

Static field-type ion path-bending selecting means

250227, G02B 636

Patent

active

047969660

ABSTRACT:
A fiber optic switch is provided for regulating light transmission comprising an encasing movement body surrounding a paramagnetic shaft, a section of which protrudes therefrom. A spring member surrounds the shaft protruding from the encasing movement body. At the end of the shaft opposite that of the protruding section is a light intercepting surface alignable with an end surface of at least one optical fiber. When a magnet outside the encasing body approaches sufficiently close to the shaft, magnetic forces attract the shaft overcoming the restraining spring and cause the light intercepting surface to move out of alignment with ends of the optical fiber, thereby making or breaking a light circuit.

REFERENCES:
patent: 3836958 (1974-09-01), McMurtry
patent: 4223217 (1980-09-01), Bongard et al.
patent: 4397183 (1983-08-01), Ballon et al.
patent: 4596442 (1986-06-01), Anderson et al.

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