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. 20, 2004
Filed:
Apr. 25, 2002
Applicant:
Inventor:
Koichi Naniwae, Minato-ku, JP;
Assignee:
NEC Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B 6/28 ;
U.S. Cl.
CPC ...
G02B 6/28 ;
Abstract
All of a plurality of visible semiconductor light emitting devices, optical waveguides coupled to these visible semiconductor light emitting devices, and a mutiplexer for multiplexing lights from the optical waveguides to prepare multi-wavelength or white light are integrally provided on a single substrate. By virtue of the above construction, a multi-wavelength semiconductor light source can be realized which can reduce the trouble of regulating the optical axis of the optical waveguides and the multiplexer and can contribute to a reduction in cost and a reduction in size.