Abstract: Methods for start-up lens. The lens moves from a stowing position to a standby position along an axis, and a reset point, a first turning point, a second turning point, and a third turning point are defined in sequence during the movement. A drive unit rotates at a first angular velocity to drive the lens in a first route, rotates at a second angular velocity to drive the lens in a second route, and rotates at a third angular velocity to drive the lens in a third route.

Abstract: A magnetic treating device includes a water container, a hose coupled to the water container with a coupling device for supplying water into the water container, and a number of magnetic members engaged onto the hose for activating the water flowing through the hose. The coupling device includes a nut member and a threaded member for securing the hose. The nut member includes a pipe for receiving the hose and for forming an annular channel between the nut member and the pipe. An outer covering may be engaged onto the hose and the magnetic members, and an activating agent may be disposed between the outer covering and the magnetic members.

Abstract: Methods for start-up lens. The lens moves from a stowing position to a standby position along an axis, and a reset point, a first turning point, a second turning point, and a third turning point are defined in sequence during the movement. A drive unit rotates at a first angular velocity to drive the lens in a first route, rotates at a second angular velocity to drive the lens in a second route, and rotates at a third angular velocity to drive the lens in a third route.