Corning Incorporated
LENS CURVATURE VARIATION APPARATUS

Abstract:

A lens curvature variation apparatus according to an embodiment includes: a liquid lens including a first electrode and a second electrode, and containing a first liquid and a second liquid forming an interface with each other; a voltage booster including a first switching element, and converting an input voltage into a voltage of a first level higher than the input voltage by a switching operation of the first switching element; a lens driver applying a driving voltage for adjusting the interface to the first electrode and the second electrode by using the voltage of the first level; a sensor unit sensing the interface controlled by the driving voltage; and a control unit controlling the lens driver so that the liquid lens forms a target interface based on information of the interface sensed by the sensor unit, wherein the voltage booster is deactivated during a sensing time at which the interface of the liquid lens is sensed by the sensor unit.