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:
Mar. 20, 2007
Filed:
Feb. 14, 2003
Hiroyuki Tanaka, Osaka, JP;
Akimitsu Sato, Osaka, JP;
Takeshi Ishimaru, Osaka, JP;
Takashi Fukuzawa, Osaka, JP;
Hiroyuki Tanaka, Osaka, JP;
Akimitsu Sato, Osaka, JP;
Takeshi Ishimaru, Osaka, JP;
Takashi Fukuzawa, Osaka, JP;
Nippon Sheet Glass Co., Ltd., Osaka, JP;
Abstract
A filter module includes a first optical fiber collimator, a second optical fiber collimator, and a filter located between the first and second optical fiber collimators. The first optical fiber collimator includes a first optical fiber, a first optical fiber chip for holding the first optical fiber, and a first lens. The second optical fiber collimator includes second optical fibers, a second optical fiber chip for holding the second optical fiber, and a second lens. The filter is located between and coaxial with the first and second lenses. The filter, the first lens, and the second lens form a center piece of the filter module.