Camera module including liquid lens and optical device comprising same

An optical device, comprising:

• a housing;
• at least one camera module disposed in the housing;
• and
• a display unit disposed in the housing, the display unit being configured to output an image,
• wherein the camera module comprises:
• a lens assembly comprising a liquid lens, comprising a first electrode comprising at least one electrode sector to control an interface formed by two different kinds of liquid and a second electrode comprising eight or more electrode sectors, and one or more solid lenses;
• a control circuit controlling voltages supplied to the first electrode and to the second electrode;
• and
• a connection unit connecting individual electrodes and a common electrode to the control circuit.

A camera module, comprising:

• a holder comprising at least one solid lens;
• a liquid lens coupled to the holder, the liquid lens having a rectangular shape;
• a first substrate connected to the liquid lens, the first substrate comprising a first terminal and a second terminal;
• a second substrate connected to the first substrate;
• and
• an image sensor disposed on the second substrate in an optical-axis direction of the liquid lens,
• wherein the liquid lens comprises:
• a first plate comprising a cavity formed therein to accommodate a conductive liquid and a non-conductive liquid therein;
• a first electrode disposed on the first plate;
• a second electrode disposed under the first plate, the second electrode comprising four electrode sectors disposed at corners of the liquid lens, and four electrode sectors, one of which is disposed between every two of the four electrode sectors disposed at the corners;
• a second plate disposed on the first electrode;
• and
• a third plate disposed under the second electrode,
• wherein the first substrate connects the second electrode to the second substrate.