Patent ID: 8322934

Claim:
A camera apparatus comprising a drive mechanism which converts a rotational driving force of a drive source into a linear thrust force, wherein the camera apparatus comprises: an image pick up element provided on an ABF frame of the camera apparatus; a drive gear to which the rotational driving force of the drive source is transmitted; a driven member around which a helical gear is formed to engage with the drive gear and to which a rotational driving force of the drive gear is transmitted with reduced gear ratio; a support unit which supports the driven member rotatably around a rotation axis of the driven member and movably along the rotation axis; and a conversion unit which converts the rotational driving force transmitted to the driven member into a linear thrust force along the rotation axis so that the driven member moves along the rotation axis as the driven member rotates, wherein the conversion unit comprises: a first threaded portion which is provided with the driven member; and a second threaded portion which is provided with the support unit and is engaged with the first threaded portion, wherein the first threaded portion is provided on one end of the driven member and a shaft member is provided on the other end of the driven member, wherein the shaft member is abutted to the ABF frame, and the ABF frame tilts as the driven member moves along the rotation axis.