Patent ID: 11953672
Assignee: OLYMPUS CORPORATION
Field: Optics (Instruments)
Classification: CPC G  A  H | IPC G

Claim 0:
1. An optical unit comprising:
a first barrel that holds a lens;
a second barrel that involves the first barrel such that the first barrel is movable along an optical axis of the lens;
a third barrel that involves at least a part of the second barrel and includes a position defining surface parallel to a moving direction of the first barrel;
a magnet fixed to the first barrel;
a coil fixed to the second barrel and configured to generate a magnetic field for moving the first barrel by interacting with a magnetic field generated by the magnet; and
a position detection unit including a magnetic sensor configured to detect the magnetic field generated by the magnet and to generate a detection signal having a corresponding relation with a position of the first barrel, a substrate including a sensor mounting surface facing the position defining surface, the magnetic sensor being mounted on the sensor mounting surface, and a base member that defines a distance between the position defining surface and the sensor mounting surface, wherein
the base member is fixed to the sensor mounting surface with a first adhesive, and
the first adhesive is not interposed between the position defining surface and the magnetic sensor.