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. 02, 2001
Filed:
May. 19, 1999
Applicant:
Inventors:
Hideo Sugiyama, Higashimurayama, JP;
Minoru Ishiharada, Urawa, JP;
Tatsuo Terahama, Tokyo, JP;
Yasuhiro Morimura, Kodaira, JP;
Itsuo Tanuma, Sayama, JP;
Assignee:
Bridgestone Corporation, Tokyo, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02B 6/02 ;
U.S. Cl.
CPC ...
G02B 6/02 ;
Abstract
A method of making an optical transmission tube comprises having a tubular clad and a core covered with the tube and having a refractive index higher than the clad. The core has light-scattering particles uniformly dispersed in or throughout the core, so that light passing through the core is reflected and scattered at individual scattering particles to permit the light to be emitted from outer surfaces of the clad.