Diaphragm structure of light-sound converter

Details Diaphragm structure of light-sound converter Diaphragm structure of light-sound converter

2007-05-22

2007-05-22

Vanderpuye, Kennth (Department: 2613)

Optical communications

Photophone

Specific transducer

C381S172000, C381S191000

Reexamination Certificate

active

10451924

ABSTRACT:
An optical-acoustic transducer in which light is irradiated to a reflecting portion from a light emitter, and a reflected light from the reflecting portion is received with a light receiver to detect a position of a vibrating section, cantilevers are formed by performing slit working for a diaphragm, portions between an outer circumference edge of the vibrating section and inner circumference edges of the cantilevers and portions between an inner circumference edge of a supporting portion and outer circumference edges of the cantilevers are partitioned by the slit working, and the cantilevers extend along an outer circumference of the vibrating section.

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International Search Report, Feb. 4, 2003.
Office Letter dated Aug. 22, 2006 from the Japanese Patent Office for Application No. 2001-351355.

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