Camera module

A camera module, comprising:

• a lens assembly comprising a liquid lens and at least one solid lens disposed above or below the liquid lens, the liquid lens comprising a plurality of individual electrodes and a common electrode;
• a driving driver configured to supply a voltage through the common electrode and at least one of the plurality of individual electrodes in the liquid lens in order to control an interface of the liquid lens;
• a capacitance measurement circuit configured to measure capacitance between the common electrode and at least one of the plurality of individual electrodes in the liquid lens;
• an operation state storage unit configured to store information on capacitance that varies depending on variation in temperature in the liquid lens;
• and
• a control unit configured to determine a temperature in the liquid lens based on the capacitance measured by the capacitance measurement circuit and the information,
• wherein the liquid lens further comprises:
• a first plate comprising a cavity in which a conductive liquid and a non-conductive liquid are disposed;
• a second plate disposed on the first plate;
• and
• a third plate disposed under the first plate,
• wherein the common electrode is disposed on the first plate, and
• wherein the plurality of individual electrodes is disposed under the first plate.