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:
Apr. 12, 2022
Filed:
Dec. 09, 2020
Light-emitting device, optical apparatus, optical measurement apparatus, and image forming apparatus
Fujifilm Business Innovation Corp., Tokyo, JP;
Takashi Kondo, Kanagawa, JP;
Tsutomu Otsuka, Kanagawa, JP;
Takeshi Minamiru, Kanagawa, JP;
Kazuhiro Sakai, Kanagawa, JP;
FUJIFILM Business Innovation Corp., Tokyo, JP;
Abstract
A light-emitting device includes a light-emitting unit. The light-emitting unit includes an array of multiple light-emitting element groups, each including multiple light-emitting elements. In the light-emitting unit, the multiple light-emitting element groups are sequentially driven along the array such that, for each of the multiple light-emitting element groups, the multiple light-emitting elements included in the light-emitting element group are concurrently set to a state of emitting light or a state of not emitting light.