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. 04, 1991
Filed:
Feb. 13, 1990
Applicant:
Inventor:
Kazuyoshi Hasegawa, Itami, JP;
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01S / ;
U.S. Cl.
CPC ...
372 36 ; 357 75 ; 357 81 ;
Abstract
A semiconductor laser device includes a heat sink having a plurality of element mounting portions, each having an element mounting surface and an insulator separating the element mounting portions from each other. A semiconductor laser element is arranged on each element mounting surface and a corresponding light receiving element for each laser element is disposed for monitoring the emitted laser light. External control circuits for adjusting the laser outputs of the respective laser elements are located outside the laser device package.