Patent attributes
An exemplary lens module with focusing function includes a lens group, a lead screw, a transmission member, an actuator, and two stop portions. The lens group is slidable along the optical axis thereof. The lead screw is set so that the longitudinal direction thereof is essentially parallel to the optical axis. The transmission member is secured to the lens group, and includes a deformable screw-engaging portion. The deformable screw-engaging portion is disengageably engaged with the lead screw. The actuator is configured for driving the lead screw to rotate to force the transmission member to move along the lead screw. The two stop portions are configured for delimiting a movable boundary of the transmission member along the lead screw. The surrounding portion will disengage from the lead screw when the surrounding portion abuts against the stop portion and the lead screw continues rotating.
