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:
May. 08, 2018
Filed:
Nov. 07, 2016
Canon Kabushiki Kaisha, Tokyo, JP;
Yuichi Seki, Saitama, JP;
CANON KABUSHIKI KAISHA, Tokyo, JP;
Abstract
A light scanning apparatus, including: a light source; a light intensity detecting portion configured to detect a light intensity of the light beam emitted from the light source; and a light intensity controller configured to control the light intensity based on a detection result of the light intensity detecting portion, wherein the light intensity controller is configured to supply, in advance, to the light source, a bias current smaller than a threshold current at which the light source starts emitting the light beam, and is configured to control a supply of a drive current to the light source, the drive current being generated by superimposing, on the bias current, a switching current for controlling the light source in accordance with an image signal, and the light intensity controller includes a current stopping unit configured to stop a supply of the bias current and the drive current to the light source.