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:
Oct. 23, 1984
Filed:
Nov. 02, 1981
Applicant:
Inventor:
Takashi Kitamura, Yokohama, JP;
Assignee:
Canon Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01S / ;
U.S. Cl.
CPC ...
372 31 ; 372 96 ; 372 75 ;
Abstract
A method in which, rearwardly of an array-like light source having a plurality of semiconductor lasers arranged in an array, a light detector for detecting the rearwardly emitted beams from the semiconductor lasers is provided and the peak value of each of the semiconductor lasers is detected by the light detector so that the peak values of the semiconductor lasers can be made equal to one another, whereby the quantity of light from each of the semiconductor lasers is regulated.