Patent ID: 8233083
Filing Date: 2012-07-31
Classification: G02B,H04N

Abstract:
1. A camera module comprising: a lens barrel providing an accommodation space; a lens holder accommodated in the accommodation space, the lens holder holding an imaging optical system; an image pickup device supported by the lens barrel, the image pickup device picking up an object image that has been guided by the imaging optical system; and a plurality of springs supporting the lens holder in such a manner that the lens holder is movable along an optical axis of the imaging optical system, wherein each of the plurality of springs includes a first arm portion and a second arm portion extending perpendicularly to each other in a plane perpendicular to the optical axis of the imaging optical system, wherein each of the first and second arm portions includes two spring strips extending parallel to each other, thickness directions of the spring strips being parallel to the optical axis, wherein, in each of the first and second arm portions, the two spring strips are connected to each other by an arc portion at longitudinal ends of the two spring strips remote from a region in which the first and second arm portions perpendicularly intersect, a diameter of an arc along the centerline of the arc portion being larger than a distance between the centerlines of the two spring strips, wherein, in the region in which the first and second arm portions perpendicularly intersect, one of the two spring strips of the first arm portion is connected to one of the two spring strips of the second arm portion, wherein, in the region in which the first and second arm portions perpendicularly intersect, a longitudinal end of the other one of the two spring strips of the first arm portion is attached to the lens holder, and wherein, in the region in which the first and second arm portions perpendicularly intersect, a longitudinal end of the other one of the two spring strips of the second arm portion is attached to the lens barrel.