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. 21, 2003
Filed:
Feb. 22, 1999
Applicant:
Inventors:
Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B23K 2/600 ; B23K 2/614 ;
U.S. Cl.
CPC ...
B23K 2/600 ; B23K 2/614 ;
Abstract
A semiconductor laser heating apparatus has a measuring instrument for measuring an optical-power output relative to a current to be supplied to the semiconductor laser. The heating apparatus also has a calculator for calculating a correction coefficient of the optical-power output based on the measured data, and has a controller for correcting a supply current to the semiconductor laser relative to a value determined by an optical-power output determiner based on the calculation result. The heating apparatus employing optical fibers as an output terminal thus can always produce a desirable heating condition regardless of the optical-power output deteriorated with the lapse of time.