Patent ID: 8488018
Filing Date: 2013-07-16
Classification: G02B

Abstract:
1. An image blur correcting unit that allows an optical axis of a lens system to coincide with a center of an imager in order to correct an image blur, the unit comprising: a stationary member; a holder member holding either one of elements of the lens system or the imager, the holder member moving relative to the stationary member in a first direction and a second direction, and the first and second directions being orthogonal to each other in a plane orthogonal to the optical axis; first guide means for guiding the movement of the holder member in the first direction; second guide means for guiding the movement of the holder member in the second direction; driving means for moving the holder member in the first and second directions, wherein the one of the elements of the lens system or the imager is disposed outside an area surrounded by the first and second guide means when the first and second guide means are viewed from the optical axis; and a restricting member restricting the movement of the holder member in the first and second directions, the restricting member being disposed in the area surrounded by the first and second guide means when the first and second guide means are viewed from the optical axis, wherein the restricting member includes a protrusion inserted into a guide hole that restricts the movement of the holder member in the first and second directions by contact between the protrusion and the guide hole in the first and second directions.