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公开(公告)号：US20240200988A1
公开(公告)日：2024-06-20
申请号：US18554950
申请日：2022-04-12
Inventor： Masaru SHIRAISHI , Shuichi NAGAI , Junya ASO
IPC: G01D5/347
CPC classification number: G01D5/3473
Abstract: An encoder includes: a rotating plate; an irradiator that irradiates the rotating plate with light; and a light receiver that receives the light which has been emitted from the irradiator and traveled via the rotating plate. The rotating plate includes at least one curved surface, and the irradiator simultaneously irradiates each of a plurality of surfaces including the curved surface with light.
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