Patent ID: 7978969
Filing Date: 2011-07-12
Classification: G02B,H04N

Abstract:
1. A camera module, characterized by comprising: a barrel unit having a housing space; a lens holding unit holding an imaging optical system and housed in the housing space; a spring disposed in the housing space, the spring supporting the lens holding unit such that the lens holding unit is movable along an optical axis of the imaging optical system; an image pickup element disposed in the barrel unit, the image pickup element picking up an object image guided by the imaging optical system; and a driving unit which moves the lens holding unit along the optical axis of the imaging optical system, wherein the driving unit includes a magnet provided on the lens holding unit, and a coil provided on the barrel unit at a position where the coil faces the magnet, wherein a point of application on the spring at which the spring supports the lens holding unit is positioned between a center of gravity of the lens holding unit and a point of load in the lens holding unit at which a thrust is generated by the coil.