Invention Application
- Patent Title: COLOR MEASUREMENT APPARATUS
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Application No.: US17654837Application Date: 2022-03-15
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Publication No.: US20220299366A1Publication Date: 2022-09-22
- Inventor: Haruki MIYASAKA , Sho ARUGA , Kenichi SHIROTA , Juro MASAKI
- Applicant: SEIKO EPSON CORPORATION
- Applicant Address: JP Tokyo
- Assignee: SEIKO EPSON CORPORATION
- Current Assignee: SEIKO EPSON CORPORATION
- Current Assignee Address: JP Tokyo
- Priority: JP2021-044418 20210318
- Main IPC: G01J3/26
- 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.
Public/Granted literature
- US2217748A Negative transconductance tubeoscillator Public/Granted day:1940-10-15
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