Patent ID: 9578216
Date: 2017-02-21
CPC Classifications: G02B,G03B,H04M,H04N

Claim:
1. A camera module comprising: a frame; a printed circuit board disposed below the frame; an image sensor disposed on the printed circuit board; an actuator including a bobbin disposed over the frame; a lens barrel coupled to an inner side of the bobbin; at least one lens fixed in the lens barrel; and an elastic member supporting the bobbin and positioning the bobbin at an initial position; wherein the bobbin travels in a first direction from the initial position when a first current is applied to the actuator, and the bobbin travels in a second direction from the initial position when a second current is applied to the actuator; wherein a first screw thread is formed on an inner lateral surface of the bobbin, and a second screw thread is formed on an outer lateral surface of the lens barrel and coupled with the first screw thread; wherein an inner diameter of the second screw thread is longer than a diameter of the outer lateral surface of the lens barrel; and wherein an outer lateral surface of the lens barrel is recessed inwardly forming a stepped part thereon between an upper side of the second screw thread and an upper end of the lens barrel.