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. 09, 2004
Filed:
Apr. 29, 2002
Applicant:
Inventor:
Masataka Tei, Kasugai, JP;
Assignee:
Santec Corporation, Komaki, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B 6/26 ;
U.S. Cl.
CPC ...
G02B 6/26 ;
Abstract
Filter chips, each of which has a wavelength characteristic corresponding to each wavelength component of wavelength-multiplexed light, are mounted on a transparent substrate to make an optical filter element. When wavelength-multiplexed light is input to the optical filter element via an optical fiber, the transmission and reflection characteristics vary depending upon which filter chip the light enters. The input position of the light to the optical filter element is changed by moving it in a direction that the filter chips are arranged, so that different selection characteristics can be obtained.