Patent ID: 11867926
Assignee: NIDEC CORPORATION
Field: Optics (Instruments)
Classification: CPC G | IPC G

Claim 0:
1. An optical unit for correcting a shake of an optical module, the optical unit comprising:
a movable portion having a holder that holds the optical module; and
a fixed portion that rotatably supports the movable portion,
wherein
an optical axis direction is a direction in which an optical axis of the optical module extends,
a first direction is parallel to the optical axis direction in a state in which the movable portion is stationary,
the movable portion is rotatable with respect to the fixed portion in
a first rotation direction centered on a first axis extending in the first direction,
a second rotation direction centered on a second axis extending in a second direction perpendicular to the first direction, and
a third rotation direction centered on a third axis extending in a third direction perpendicular to the first direction and the second direction,

the movable portion further has a protrusion protruding toward the fixed portion from an end, close to the fixed portion, of the holder in the optical axis direction,
the fixed portion has a support portion that rotatably supports the protrusion
the movable portion further has a plurality of side protrusions protruding from a peripheral wall portion of the holder toward an outer side of the movable portion in a radial direction perpendicular to the optical axis, and
the plurality of side protrusions is in contact with a concave surface of the fixed portion and is movable on the concave surface.