公开(公告)号：US20220128923A1

公开(公告)日：2022-04-28

申请号：US17318661

申请日：2021-05-12

Applicant: FUJIFILM Business Innovation Corp.

Inventor： Kyoji YAGI ,  Ken TSUCHIYA ,  Seiji ONO

IPC: G03G15/04

Abstract: A light emitting device includes a first light-emitting-element row that includes light emitting elements arranged in a row in a main scanning direction and a second light-emitting-element row that includes light emitting elements arranged in a row in the main scanning direction and that is positioned in such a manner that at least a portion of the second light-emitting-element row overlaps the first light-emitting-element row in a subscanning direction. The first light-emitting-element row and the second light-emitting-element row are each formed by arranging light-emitting-element array chips in each of which the light emitting elements are arranged in a row in the main scanning direction. In each of the light-emitting-element array chips, a pitch of the light emitting elements arranged in a row is changed from a first pitch to a second pitch, which is different from the first pitch, in a central region of the row of the light emitting elements.