Patent ID: 8994875
Filing Date: 2015-03-31
Classification: G02B,G03B,H02K,H04N

Abstract:
1. A camera module having an auto focus adjustment function, comprising: a housing; a barrel elastically supported within the housing; a lens unit inserted in the housing and including at least one lens; a VCM (Voice Coil Motor) actuator attached to the barrel for generating a force to linearly move the lens unit with the barrel for an auto focus adjustment; an infrared filter inserted in the barrel for removing an infrared component of light; and an image sensor discretely positioned from the lens unit to convert an optical image filtered by the infrared filter to an electrical signal, wherein the VCM actuator moves the position of the lens to adjust an initial position of the lens by using a gap of reference distance position value caused by tolerance or a lens position value to a focus-matched point of the camera module.