公开(公告)号：US20220299366A1

公开(公告)日：2022-09-22

申请号：US17654837

申请日：2022-03-15

Applicant: SEIKO EPSON CORPORATION

Inventor： Haruki MIYASAKA ,  Sho ARUGA ,  Kenichi SHIROTA ,  Juro MASAKI

IPC: G01J3/26 ,  G01J3/02 ,  G01J3/46 ,  G02B5/28 ,  G02B26/00 ,  G02B7/00

Abstract: A color measurement apparatus includes a substrate including an optical filter that processes light arriving from a measurement target, a reduction portion that reduces a quantity of light heading toward the optical filter from the measurement target, a frame that is a frame arranged to face the substrate and to which the substrate is fixed, and has a shape avoiding the optical filter and in which the reduction portion is positioned at a position facing the optical filter, and a positioning section that decides a relative position between the substrate and the frame in a direction intersecting with a center axis of the reduction portion.