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:
Sep. 30, 2008
Filed:
Aug. 19, 2005
Yoshisada Nakamura, Shizuoka, JP;
Hiroki Takahashi, Shizuoka, JP;
Takanori Sato, Shizuoka, JP;
Kenji Matsumoto, Kanagawa, JP;
Hiroyuki Hiiro, Kanagawa, JP;
Yoshisada Nakamura, Shizuoka, JP;
Hiroki Takahashi, Shizuoka, JP;
Takanori Sato, Shizuoka, JP;
Kenji Matsumoto, Kanagawa, JP;
Hiroyuki Hiiro, Kanagawa, JP;
FUJIFILM Corporation, Tokyo, JP;
Abstract
A plastic optical fiber () has a core () and a clad (). The clad () is composed of an outer clad () and an inner clad (). The refractive index in the core () gradually increases as the distance from the center thereof decreases. The refractive index in the inner clad () is equal to the minimum value of the refractive index in the core (), and the refractive index in the outer clad () is smaller than that in the inner clad (). For the purpose of decreasing the transmission loss between the plastic optical fiber () and a light emission device or the light receiving device, the diameter dof the core () and the outer diameter dof the inner clad () satisfy the following conditions;100(μm)≦≦700(μm)200(μm)≦≦1000(μm)d<d