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:
Dec. 10, 2002
Filed:
Mar. 28, 2000
Naoshi Serizawa, Shizuoka, JP;
Junichi Matsushita, Shizuoka, JP;
Yazaki Corporation, Tokyo, JP;
Abstract
A sleeve ( ) includes a core ( ) of transparent synthetic resin and a cladding ( ), also of transparent synthetic resin, having a smaller refractive index than the core. The core includes an optical waveguide ( ) extending in an optical axial direction to taper in a conical shape and a lens ( ) formed at the large diameter end of the waveguide. The lens receives light and converges it. There is a circular flange-like guide integral to the outer wall in the vicinity of the lens. The cladding ( ) is formed concentrically with the core in intimate contact with the outer wall of the core. The configuration improves the transmission efficiency of light and contributes to cost reduction of the sleeve.