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:
Sep. 05, 2023
Filed:
Apr. 02, 2021
Ricoh Company, Ltd., Tokyo, JP;
Yoshinobu Sakaue, Kanagawa, JP;
Takeshi Yamakawa, Kanagawa, JP;
Susumu Narita, Tokyo, JP;
Ryo Sato, Tokyo, JP;
RICOH COMPANY, LTD., Tokyo, JP;
Abstract
An optical scanning device includes light sources, a deflector, an optical element, and light blockers. The light blockers are spaced apart in a rotation direction of the deflector. An inequality θis satisfied, where when viewed from the rotation axis direction, θis an angle formed by a line segment connecting the end portion of a light blocker disposed most downstream in the rotation direction to a rotation axis center of the deflector and a line segment connecting the end portion of a light blocker disposed most upstream in the rotation direction to the rotation axis center, and θis an angle formed by a line segment connecting an upstream end portion of one mirror surface in the rotation direction to the rotation axis center and a line segment connecting a downstream end portion of the one mirror surface in the rotation direction to the rotation axis center.