CAMERA MODULE WITH OPTICAL IMAGE STABILIZATION FUNCTION

摘要

The present invention relates to a camera module which can implement its small size and light weight while providing an optical image stabilization function. A lower carrier is disposed on a base. An upper carrier is disposed on the lower carrier. An X-axis guide includes first guide balls which are arranged on the base, and first guide grooves which are formed on each of a top surface of the base and a bottom surface of the lower carrier so that the first guide balls are guided through horizontal movement in an X-axis direction. A Y-axis guide includes second guide balls which are arranged on the lower carrier, and second guide grooves which are formed on each of a top surface of the lower carrier and a bottom surface of the upper carrier so that the second guide balls are guided through horizontal movement in a Y-axis direction. A drive unit includes magnets which are fixed on the upper carrier, horizontal drive coils which are fixed on the base and horizontally move the lower carrier and the upper carrier through interaction with the magnets based on application of drive voltage, and yokes which are fixed on the based and receive force of attraction from the respective magnets. A lens unit is disposed through centers of the upper and lower carriers, and is supported by elastic force of upper and lower springs with respect to the upper carrier. A vertical drive coil is fixed on the lens unit and generates vertical driving force in a Z-axis direction through interaction with the magnets based on application of drive voltage.