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. 14, 2024
Filed:
Dec. 27, 2021
Sharp Kabushiki Kaisha, Sakai, JP;
Kazutaka Matsumoto, Sakai, JP;
Hiroyuki Asoda, Sakai, JP;
SHARP KABUSHIKI KAISHA, Sakai, JP;
Abstract
An optical scanning device includes a laser light emitter in which an excess of a current over a bias current is increased or decreased in proportion to an analog signal input thereto, a laser driver to drive the laser light emitter, an optical scanner to scan a surface of an object with laser light emitted from the laser light emitter, an offset value determiner to determine an offset value of the analog signal input to the laser light emitter based on a target light quantity of the laser light emitter, and a laser driver controller to control a quantity of light emitted from the laser light emitter by inputting a signal on the basis of a signal of the determined offset value to the laser driver.