公开(公告)号：US20210048603A1

公开(公告)日：2021-02-18

申请号：US17084918

申请日：2020-10-30

Applicant: OLYMPUS CORPORATION

Inventor： Jun SHINZATO ,  Masaru INAMURA ,  Takehiko IGUCHI

IPC: G02B7/04 ,  G02B7/02 ,  G02B23/24

Abstract: An optical unit includes a first barrel, a second barrel, a third barrel, and a position detection unit. Eight magnets including first and second magnets are fixed to the first barrel. A first and second coils are fixed to the second barrel. The position detection unit includes a magnetic sensor configured to detect magnetic fields generated by the first and second magnets and to generate a detection signal having a corresponding relation with a position of the first barrel. The third barrel includes a position defining surface parallel to a moving direction of the first barrel. The position detection unit is fixed to the position defining surface.