Fiber optic switch arrangement

Details Fiber optic switch arrangement Fiber optic switch arrangement

1977-04-01

1978-09-26

Corbin, John K.

Communications: electrical

Land vehicle alarms or indicators

Internal alarm or indicator responsive to a condition of the...

340365A, 350 9629, 350360, G02B 514

Patent

active

041165314

ABSTRACT:
A fiber optic switch utilizes an unclad light guide arranged adjacent to a diaphragm of absorbing material. Operation of a push-button presses the diaphragm into contact with the light guide for attenuating the light. Several light guides may be employed to provide an n-of-m code switch matrix.

REFERENCES:
patent: 3526775 (1970-09-01), Friedrich et al.
patent: 3673327 (1972-06-01), Johnson et al.
Kaser et al., IBM Tech. Disc. Bull, "Push-Button Switches for Optical Fibres," vol. 16, No. 8. Jan. 1974, p. 2452.
Dimmick et al., IBM Tech. Disc. Bull., "Optical Keyboard," vol. 16, No. 6, Nov. `1973, pp. 1785-1786.

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