LENS DRIVING DEVICE CAPABLE OF PREVENTING THE SMALL TREMOR OF A LENS WHEN LENS SUPPORTING PORTION IS MOVED

摘要

PURPOSE: A lens driving device is provided to prevent the tremor of a lens supporting portion by stably adhere closely to contact unit and lead screw through the structure of a contact unit having a rotation.;CONSTITUTION: A lens driving device(100) comprises a lens supporting portion(110), a contact portion(130), a force applying portion(150) and a driving unit(120). In the lens supporting portion, one or more lens(112) is installed. The lens supporting portion comprises a first support(111a) and a second support stand(111b) which is arranged in order to be each other opposite. The inner side of the first support is inclined. The contact portion is installed between the first support and the second support stand. In the contact portion, a protrusion(131) is formed in the direction which is opposite to the inclined surface. The force applying portion adds the force to the contact portion in order that the protrusion is touched with the inclined surface. The driving unit comprises a lead screw(122) sticking to the single-side of contact unit and moves the lens supporting portion to the optical axis.;COPYRIGHT KIPO 2012