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. 26, 2010
Filed:
Jan. 24, 2005
Shinji Yamashita, Kawasaki, JP;
Tsuyoshi Yamamoto, Kawasaki, JP;
Tamotsu Akashi, Kawasaki, JP;
Kohei Shibata, Kawasaki, JP;
Hirofumi Aota, Yokohama, JP;
Osamu Tsuboi, Kawasaki, JP;
Shinji Yamashita, Kawasaki, JP;
Tsuyoshi Yamamoto, Kawasaki, JP;
Tamotsu Akashi, Kawasaki, JP;
Kohei Shibata, Kawasaki, JP;
Hirofumi Aota, Yokohama, JP;
Osamu Tsuboi, Kawasaki, JP;
Fujitsu Limited, Kawasaki, JP;
Abstract
The optical switch includes: a spectroscopic device which separates wavelength division multiplexed (WDM) light into its component wavelengths; and a plurality of movable reflectors, arranged in a spectral direction at different intervals, for reflecting light of an individual component wavelength separated by said spectroscopic device. With this optical switch, deterioration of the characteristic of the pass band is avoided, so that the pass band characteristic is increased.