Patent ID: 7881597

Claim:
An image blur correction device comprising: a correction lens configured to correct an image blur in a lens system; a first movable frame holding the correction lens; a second movable frame supporting the first movable frame to be movable in a first direction perpendicular to an optical axis of the lens system; a fixed frame supporting the second movable frame to be movable in a second direction perpendicular to the optical axis of the lens system and perpendicular to the first direction; a first main guide shaft and a first auxiliary guide shaft arranged opposite across the correction lens, guiding the first movable frame in the first direction; a second main guide shaft and a second auxiliary guide shaft arranged opposite across the correction lens, guiding the second movable frame in the second direction; a first driving part moving the first movable frame in the first direction; and a second driving part moving the second movable frame in the second direction, wherein the first auxiliary guide shaft is shorter than the first main guide shaft and the second driving part is placed between the first auxiliary guide shaft and the correction lens, wherein the second auxiliary guide shaft is shorter than the second main guide shaft and the first driving part is placed between the second auxiliary guide shaft and the correction lens, wherein the correction lens is a lens movable in an optical axis direction of the lens system through the fixed frame, and wherein the fixed frame has a pair of guide grooves extending in a direction parallel to an optical axis direction of the correction lens in positions rotationally displaced at about 180° to each other around the correction lens.