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:
Nov. 07, 2023
Filed:
Feb. 01, 2019
Ricoh Company, Ltd., Tokyo, JP;
Toshiyuki Ikeoh, Duesseldorf, DE;
Yasufumi Yamada, Osaka, JP;
Atsushi Sakai, Tokyo, JP;
Naoto Jikutani, Miyagi, JP;
Tsuyoshi Ueno, Kanagawa, JP;
Nobunari Tsukamoto, Osaka, JP;
Tadashi Nakamura, Kanagawa, JP;
Kazuma Izumiya, Miyagi, JP;
Shuichi Suzuki, Kanagawa, JP;
RICOH COMPANY, LTD., Tokyo, JP;
Abstract
An optical device includes a light source provided with a plurality of surface-emitting laser elements to emit a laser beam, a scanner to scan the laser beam emitted from the light source, and an optical system disposed in an optical path between the light source and the scanner and to guide the laser beam to the scanner. The optical system includes a first optical element to control a divergence angle of the laser beam emitted from the light source and a second optical element to concentrate the laser beam that has passed through the first optical element onto a to-be-scanned surface of the scanner.