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:
Jun. 05, 2012
Filed:
Dec. 28, 2009
Kenji Okada, Sakura, JP;
Naritoshi Yamada, Sakura, JP;
Shoichiro Matsuo, Sakura, JP;
Fujikura Ltd., Tokyo, JP;
Abstract
A plastic glass optical fiber includes a glass core (diameter a, relative refractive index difference Δ, and refractive index n), a polymer core (diameter a, relative refractive index difference Δ, and refractive index n), and a polymer cladding (refractive index n), in which the diameter aof the glass core is within a range of 110 μm to 200 μm, a parameter X (X is a/a) is within a range of 1.15≦X≦2.9, a parameter Y (Y is Δ/Δ) is within a range of 0.25≦Y≦0.84X−0.68 (when 1.15≦X≦2) or 0.48X−0.71≦Y≦−(2/9)X+13/9 (when 2≦X≦2.9), a parameter Z(Zis Z/Z; Z=aπ/4×√(n−n) and Z=aπ/4×√(n−n)) is within a range of 1.25≦Z≦4.