Kyocera Corporation

Sanwa Denki Kogyo Co., Ltd.

Hideto Sonoda

Mikio Kyomasu

Toshiyuki Matsumoto

Toshihiro Takimoto

Hiroshi Hashimoto

Sadaaki Minamimoto

Akira Kashiwazaki

An optical device having: an optical fiber body; a ferrule which surrounds the above described optical fiber body and to which a recess that crosses a coreless fiber within the above described optical fiber has been provided; and an optical element which is provided within the recess in said ferrule, is provided with a protective member for protecting the above described recess, and the protective member has a restriction means for physically restricting the rotation of the optical device around the optical axis.

Optical device

An integrally-molded ceramic cylindrical alignment sleeve is composed of a cylindrical sleeve body and at least three convex portions located on the inner surface of the sleeve body, each of the convex portions extending from one end to the other in the longitudinal direction of the sleeve body, with the upper surface of each of the convex portions being formed in the shape of a reverse arc and the section where each of the convex portions connects to the inner surface of the sleeve body being in the shape of a continuous R. A method of producing this integrally-molded ceramic cylindrical alignment sleeve is disclosed.

Integrally-molded ceramic alignment sleeve for optical fiber connector

Growing community of inventors

Kitami, Japan

Hideto Sonoda