Patent ID: 7616388

Claim:
An image capture lens feeding device, comprising: a lens retention housing, comprising a lens group constituting an image capture lens, with the optical axis of said lens group being coincident with a rotation axis, and enabling back-and-forth motion of said lens group along said rotation axis while rotating; a holder, slidably coupled with said lens retention housing and holding said lens retention housing, and comprising in the center portion a window through which light transmitted by said image capture lens passes; a cam mechanism, comprising first cam means which is provided in said lens retention housing, and second cam means which is provided on said holder and which slips relative to said first cam means; a pressing cover coupled with said holder; a spacer which rotates about said rotation axis integrally with said lens retention housing, in plane contact with said pressing cover, and which is coupled with said lens retention housing without impeding said back-and-forth motion of said lens retention housing; and, spring means inserted between said lens retention housing and said spacer, in pressing contact with said first cam means and with said second cam means by rotating said lens retention housing with respect to said holder, said lens retention housing can be moved back and forth with respect to said holder, wherein said spring means comprises at least two micro-coil springs arranged at a distance from each other, one end of each of said micro-coil springs is fixed to either said lens retention housing or to said spacer, and said micro-coil springs are configured so as to press against said spacer.