The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 01, 2013
Filed:
May. 27, 2008
Ken Hayakawa, Kanagawa, JP;
Kazuo Haraoka, Tokyo, JP;
Masaaki Hattori, Chiba, JP;
Naoki Kaneko, Kanagawa, JP;
Tetsujiro Kondo, Tokyo, JP;
Hidehiko Sekizawa, Tokyo, JP;
Nozomu Ozaki, Kanagawa, JP;
Seiji Wada, Kanagawa, JP;
Toshiyuki Sekiya, Tokyo, JP;
Shinji Sangawa, Tokyo, JP;
Ken Hayakawa, Kanagawa, JP;
Kazuo Haraoka, Tokyo, JP;
Masaaki Hattori, Chiba, JP;
Naoki Kaneko, Kanagawa, JP;
Tetsujiro Kondo, Tokyo, JP;
Hidehiko Sekizawa, Tokyo, JP;
Nozomu Ozaki, Kanagawa, JP;
Seiji Wada, Kanagawa, JP;
Toshiyuki Sekiya, Tokyo, JP;
Shinji Sangawa, Tokyo, JP;
Sony Corporation, Tokyo, JP;
Abstract
An optical selector includes: an optical waveguide which includes a first light guide section having a first refractive index, a second light guide section having a second refractive index provided to the side of and along the entire circumference of the first light guide section, and a reflector provided at opposing positions on both surfaces of each of the first and second light guide sections while exposing the outer circumferential surface of the second light guide section; a single or plurality of LDs that are placed on the outer circumference of the optical waveguide, and emit light toward the first light guide section; and a single or plurality of photodetectors that are placed on the outer circumference of the optical waveguide, and receive light emitted from the outer circumference of the optical waveguide.