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:
Nov. 03, 2009
Filed:
Feb. 29, 2008
Kohei Shibata, Kawasaki, JP;
Hirofumi Aota, Kawasaki, JP;
Tamotsu Akashi, Kawasaki, JP;
Toshiya Kishida, Kawasaki, JP;
Hiroyuki Furukawa, Kawasaki, JP;
Kohei Shibata, Kawasaki, JP;
Hirofumi Aota, Kawasaki, JP;
Tamotsu Akashi, Kawasaki, JP;
Toshiya Kishida, Kawasaki, JP;
Hiroyuki Furukawa, Kawasaki, JP;
Fujitsu Limited, Kawasaki, JP;
Abstract
An optical switch includes an input port into which a multiplexed optical signal is input; a dispersing unit that, according to wavelength, disperses the multiplexed optical signal into a plurality of optical signals that are each dispersed in a unique direction; a converging unit that converges the dispersed optical signals; plural mirrors that are arrayed forming a single row in a plane and reflecting the converged optical signals, respectively; and plural output ports through which the reflected optical signals are output. Each of the mirrors has a concave reflective surface that is in the plane and of a predetermined curvature about an axis parallel to the plane.