| 摘要 |
A zoom lens optic system is provided to reduce a size of a zoom lens module and to minimize a zoom and focus driving time by using a reflective type zoom lens group having a curvature change function. A first zoom optic element is formed to control optical power on the basis of a reflective radius of curvature to incident light from an object. A rear stage zoom optic element is formed to control the optical power on the basis of the reflective radius of curvature. An optic element control unit(60) controls a change of curvature in the zoom optic element. An AF control unit(20) is connected to the optic element control unit in order to perform an AF control operation according to the change of the curvature. A zoom control unit is connected to the optic element control unit in order to perform a zoom control operation and a tracking control operation according to the change of the curvature.
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