Imaging device and shake suppression method

An imaging device that includes a shutter unit including a shutter adjusting an amount of subject light incident on an image sensor through an imaging optical system, the shutter unit being mounted on a frame, the imaging device comprising:

• at least three or more elastic members,
• wherein the at least three or more elastic members are disposed on an outer periphery of a contour of the shutter unit in a front view and press the shutter unit from the frame to support the shutter unit,
• each of the at least three or more elastic members is elastically deformed in a first direction that is a direction in which each of the at least three or more elastic members presses the shutter unit from the frame and a second direction that is a direction perpendicular to the first direction,
• the first directions of the at least three or more elastic members intersect with each other at a specific spot inside the contour,
• the at least three or more elastic members are disposed between the frame and the shutter unit on the outer periphery in a state where the at least three or more elastic members are compressed in the first direction in a case where a position of the shutter unit is a reference position, and
• an amount of elastic deformation of the at least three or more elastic members in a case where the position of the shutter unit is the reference position is equal to or larger than a movable distance of the shutter unit.

An imaging device that includes a shutter unit including a shutter adjusting an amount of subject light incident on an image sensor through an imaging optical system, the shutter unit being mounted on a frame, the imaging device comprising:

• at least three or more elastic members,
• wherein the at least three or more elastic members are disposed on an outer periphery of a contour of the shutter unit in a front view and press the shutter unit from the frame to support the shutter unit,
• each of the at least three or more elastic members is elastically deformed in a first direction that is a direction in which each of the at least three or more elastic members presses the shutter unit from the frame and a second direction that is a direction perpendicular to the first direction,
• the first directions of the at least three or more elastic members intersect with each other at a specific spot inside the contour,
• the specific spot is a predetermined range inside the contour, and
• the predetermined range is a range in which damping performance equivalent to damping performance of the at least three or more elastic members against the shutter unit, in a case where the specific spot is a centroid, is exhibited by adjustment of a modulus of elasticity of at least one elastic member of the at least three or more elastic members.

A shake suppression method applied to an imaging device that includes a shutter unit including a shutter adjusting an amount of subject light incident on an image sensor through an imaging optical system, and at least three or more elastic members, the shutter unit being mounted on a frame, the shake suppression method comprising:

• disposing the at least three or more elastic members on an outer periphery of a contour of the shutter unit in a front view;
• causing the at least three or more elastic members to press the shutter unit from the frame to support the shutter unit;
• causing each of the at least three or more elastic members to be elastically deformed in a first direction that is a direction in which each of the at least three or more elastic members presses the shutter unit from the frame and a second direction that is a direction perpendicular to the first direction;
• causing the first directions of the at least three or more elastic members to intersect with each other at a specific spot inside the contour, wherein
• the specific spot is one spot inside the contour, and
• the one spot is a spot that coincides with a centroid of the shutter unit in the front view, or is a centroid of the shutter unit.