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:
Jun. 19, 1990
Filed:
Jan. 18, 1989
Applicant:
Inventor:
Yuichi Handa, Atsugi, JP;
Assignee:
Canon Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01S / ;
U.S. Cl.
CPC ...
372-7 ; 350 9619 ; 350 9612 ;
Abstract
A laser light source comprises, a substrate, a channel waveguide path formed on said substrate and having an active area for generating a laser beam upon reception of energy, so as to constitute a laser resonator, a device for supplying the energy to the active area, a slab waveguide path formed on the substrate, and an extracting structure for extracting the laser beam generated in the channel waveguide path to the slab waveguide path as a beam collimated in one direction.