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:
Mar. 30, 2021
Filed:
Feb. 07, 2019
Ricoh Company, Ltd., Tokyo, JP;
Daisuke Ichii, Kanagawa, JP;
RICOH COMPANY, LTD., Tokyo, JP;
Abstract
An optical scanning device includes a plurality of light sources, a light deflector, a light receiver, and circuitry. The light deflector scans light emitted from the plurality of light sources on a surface to be scanned. The light receiver receives light emitted from at least one of the light sources, at a predetermined timing. The circuitry adjusts a scanning position of the light deflector based on a timing at which the light receiver receives the light. The circuitry turns on at least one of the plurality of light sources that emits light having a wavelength of 600 [nm] or and causes the light receiver to receive the light at the predetermined timing.