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:
Feb. 14, 2012
Filed:
Feb. 07, 2008
Applicants:
Takeo Sugawara, Hamamatsu, JP;
Akira Tominaga, Hamamatsu, JP;
Inventors:
Takeo Sugawara, Hamamatsu, JP;
Akira Tominaga, Hamamatsu, JP;
Assignee:
Hamamatsu Photonics K.K., Hamamatsu-shi, Shizuoka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B 6/08 (2006.01);
U.S. Cl.
CPC ...
Abstract
A fiber optic includes a plurality of fibers each including a core made of core glass for propagating light and a cladding for covering an outer periphery of the core and made of cladding glass lower in refractive index than the core glass and an absorber glass arranged between the plurality of fibers and for absorbing light leaking from the plurality of fibers. The plurality of fibers are bundled and integrated. The absorber glass contains FeObeing iron oxide crystals.