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:
Dec. 25, 2012
Filed:
Feb. 17, 2011
Naoki Miyatake, Kanagawa, JP;
Yoshinori Hayashi, Kanagawa, JP;
Takeshi Ueda, Tokyo, JP;
Naoto Watanabe, Kanagawa, JP;
Daisuke Ichii, Kanagawa, JP;
Naoki Miyatake, Kanagawa, JP;
Yoshinori Hayashi, Kanagawa, JP;
Takeshi Ueda, Tokyo, JP;
Naoto Watanabe, Kanagawa, JP;
Daisuke Ichii, Kanagawa, JP;
Ricoh Company, Ltd., Tokyo, JP;
Abstract
An optical scanning device includes a coupling optical system, a light source including a plurality of light emitting units for emitting light beams, and a deflector including a deflecting surface for deflecting the light beams. The coupling optical system is arranged on an optical path between the light source and the deflector so that the light beams enter the deflector at an angle with respect to a normal direction of the deflecting surface in a sub-scanning direction. The light emitting units are arranged two-dimensionally, and a distance between two light emitting units at opposite ends in a main scanning direction is smaller than a distance between two light emitting units at opposite ends in the sub-scanning direction.