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:
May. 23, 2006
Filed:
Nov. 04, 2003
Masahiro Fushimi, Tokyo, JP;
Eiichi Ito, Tokyo, JP;
Tomohiro Fujita, Saitama-ken, JP;
Tadashi Minakuchi, Saitama-ken, JP;
Akira Arimoto, Tokyo, JP;
Mitsunori Iima, Saitama-ken, JP;
Yoshimi Obara, Tokyo, JP;
Shinji Tsukamoto, Saitama-ken, JP;
Ryoichi Nakanishi, Saitama-ken, JP;
Masahiro Fushimi, Tokyo, JP;
Eiichi Ito, Tokyo, JP;
Tomohiro Fujita, Saitama-ken, JP;
Tadashi Minakuchi, Saitama-ken, JP;
Akira Arimoto, Tokyo, JP;
Mitsunori Iima, Saitama-ken, JP;
Yoshimi Obara, Tokyo, JP;
Shinji Tsukamoto, Saitama-ken, JP;
Ryoichi Nakanishi, Saitama-ken, JP;
PENTAX Corporation, Tokyo, JP;
Abstract
An optical fiber includes an entrance face that is optically coupleable with a device for transmitting a light beam through the optical fiber. The entrance face includes a core region and a cladding region surrounding the core region. The cladding region is at least partially covered with a coating, which is made of metal, for example. That is, the coating is formed over a whole area of the cladding region or the coating is formed on an area of the cladding region defined in a vicinity of the core region. The coating has a mirror surface to increase the reflectivity thereof and enhances the reflectivity of the entrance face.