Optical microphone with vibrating optical element

Details Optical microphone with vibrating optical element Optical microphone with vibrating optical element

1991-10-09

1993-11-16

Chilcot, Jr., Richard E.

Optical: systems and elements

Deflection using a moving element

Using a periodically moving element

359150, 359173, 381172, H04B 1002, H04B 1012

Patent

active

052628841

ABSTRACT:
An optical microphone includes a vibrating membrane defining a diaphragm for receiving acoustic signals. An optical element such as a lens is attached for vibrating with the membrane in direct relationship with the acoustic input signals. Fixed fiber optic cables may be placed in alignment with the lens for directing the initial light toward the lens and transmit the directed light from the lens. A single or dual fiber optic geometry may be used with the vibrating lens.

REFERENCES:
patent: 3286032 (1966-11-01), Baum
patent: 3622791 (1971-11-01), Bernard
patent: 4166932 (1979-09-01), Selway
patent: 4412105 (1983-10-01), Muscatell
patent: 4422182 (1983-12-01), Kenjyo
patent: 4479265 (1984-10-01), Muscatell
patent: 4482805 (1984-11-01), Palmer
patent: 4640382 (1987-02-01), Hartmann et al.

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