Abstract: A liquid lens includes a first plate including a cavity accommodating a conductive liquid and a nonconductive liquid; second and third plates disposed above and below the first plate, respectively, the second and third plates defining the cavity together with the first plate; a common electrode disposed so as to extend to the conductive liquid from a position between the first plate and the third plate; a plurality of individual electrodes disposed between the first plate and the second plate, the plurality of individual electrodes being electrically isolated from each other; and a temperature-sensing unit disposed inside at least one of the first plate, the second plate, or the third plate.

Abstract: An optical device provided by the present invention can comprise: a light transmitting unit for generating a first beam for photographing a certain area; a light receiving unit for sensing a second beam returning from the certain area; a light separating unit for distinguishing and transmitting the first beam from the second beam; and a detection unit including a micro electro-mechanical system mirror (MEMS mirror) for transmitting the first beam by changing an optical axis up to a first steering angle, and for receiving the second beam.

Abstract: The present invention provides a circuit for controlling a voltage for driving liquid lens including a first voltage generator for outputting a first voltage; a second voltage generator for outputting a second voltage having an opposite polarity to the first voltage; a first switch for selecting one of the first voltage and a ground voltage, and transmitting the selected voltage; a second switch for selecting one of the second voltage and the ground voltage, and transmitting the selected voltage; and a third switch for selecting one of a voltage selected by the first switch and the voltage selected by the second switch, and transmitting the selected voltage, wherein the third switches is plural in number, and the first switch is connected in common to the plurality of third switches.

Abstract: A camera module of an embodiment includes: a liquid lens including a common electrode and a plurality of individual electrodes; and a control circuit electrically connected to the common electrode and the individual electrodes and configured to control the liquid lens, wherein, when a driving voltage for driving the liquid lens is changed, the control circuit floats at least one of the plurality individual electrode in a state in which a first voltage is applied to the common electrode.

Abstract: The present invention provides a circuit for controlling a voltage for driving a liquid lens including a first voltage generator for outputting a first voltage; a second voltage generator for outputting a second voltage having an opposite polarity to the first voltage; a first switch for selecting one of the first voltage and a ground voltage, and transmitting the selected voltage; a second switch for selecting one of the second voltage and the ground voltage, and transmitting the selected voltage; and a third switch for selecting one of a voltage selected by the first switch and the voltage selected by the second switch, and transmitting the selected voltage, wherein the third switch is plural in number, and the first switch is connected in common to the plurality of third switches.

Abstract: The present embodiment relates to a dual camera module comprising: a first camera module including a first liquid lens and capturing a first image; and a second camera module including a second liquid lens and capturing a second image, wherein a viewing angle of the first camera module is smaller than a viewing angle of the second camera module, at least a part of the viewing angle of the first camera module is included in the viewing angle of the second camera module such that there is an overlapping area between the first image and the second image so as to enable a composite image formed by combining the first image and the second image to be generated, and when the first camera module is focused, a focal length of the first liquid lens is varied according to the distance between the first liquid lens and a subject, and when the second camera module is focused, a focal length of the second liquid lens is varied according to the distance between the second liquid lens and the subject.

Abstract: An optical device provided by the present invention can comprise: a light separating unit receiving one first beam so as to output k (k is a natural number) second beams; a light steering unit changing the k second beams up to a first steering angle, so as to output a third beam; a lens unit receiving the third beam so as to adjust the first steering angle, thereby outputting a fourth beam; and a driving unit for controlling a first light output angle, wherein a wave front of the second beams can be wider than that produced by diving a wave front of the first beam by k.

Abstract: The present embodiment relates to a dual camera module comprising: a first camera module including a first liquid lens and capturing a first image; and a second camera module including a second liquid lens and capturing a second image, wherein a viewing angle of the first camera module is smaller than a viewing angle of the second camera module, at least a part of the viewing angle of the first camera module is included in the viewing angle of the second camera module such that there is an overlapping area between the first image and the second image so as to enable a composite image formed by combining the first image and the second image to be generated, and when the first camera module is focused, a focal length of the first liquid lens is varied according to the distance between the first liquid lens and a subject, and when the second camera module is focused, a focal length of the second liquid lens is varied according to the distance between the second liquid lens and the subject.

Abstract: An embodiment relates to an optical module which comprises: a light transmitting unit for emitting a plurality of beams to a scanning area so as to scan the scanning area; and a light receiving unit for measuring information on an object located inside the scanning area, using backward light which is reflected and returned from the object after the emitted beams hit the object, wherein the scanning area includes at least one scanning area, and the light transmitting unit scans the at least one scanning area at at least one scanning rate.

Abstract: Disclosed is a liquid lens control circuit, which includes a liquid lens including a plurality of individual electrodes disposed in compartmental areas at the same level and a common electrode disposed at a different level from that of the individual electrodes, a voltage control circuit configured to supply voltages to the common electrode and at least one of the individual electrodes in the liquid lens in order to control an interface in the liquid lens, and a capacitance measuring circuit configured to calculate a capacitance between the common electrode and at least one of the individual electrodes in the liquid lens using a switched capacitor.

Abstract: An embodiment relates to an optical module which comprises: a light transmitting unit for emitting a plurality of beams to a scanning area so as to scan the scanning area; and a light receiving unit for measuring information on an object located inside the scanning area, using backward light which is reflected and returned from the object after the emitted beams hit the object, wherein the scanning area includes at least one scanning area, and the light transmitting unit scans the at least one scanning area at at least one scanning rate.

Abstract: Disclosed is a liquid lens control circuit, which includes a liquid lens including a plurality of individual electrodes disposed in compartmental areas at the same level and a common electrode disposed at a different level from that of the individual electrodes, a voltage control circuit configured to supply voltages to the common electrode and at least one of the individual electrodes in the liquid lens in order to control an interface in the liquid lens, and a capacitance measuring circuit configured to calculate a capacitance between the common electrode and at least one of the individual electrodes in the liquid lens using a switched capacitor.

Abstract: A circuit for controlling liquid lens includes a liquid lens including a common electrode and a plurality of individual electrodes including first to fourth individual electrodes, a voltage generator configured to supply a voltage to the plurality of individual electrodes and the common electrode in the liquid lens, and a controller configured to control timing to sequentially supply the voltage to each of the individual electrodes, wherein the controller applies the voltage to the second individual electrode after applying the voltage to the first individual electrode, applies the voltage to the third individual electrode after applying the voltage to the second individual electrode, and applies the voltage to the fourth individual electrode after applying the voltage to the third individual electrode, and wherein the first to fourth individual electrodes are disposed at the same angular interval from each other with respect to a center of the liquid lens.

Abstract: The present invention provides a camera module including a liquid lens, the camera module comprising: a first plate including a cavity in which conductive liquid and non-conductive liquid are arranged; a common electrode disposed on the first plate; an individual electrode disposed below the first plate; a second plate disposed on a first electrode; and a third plate disposed below a second electrode.

Abstract: Disclosed is a liquid lens control circuit, which includes a liquid lens including a plurality of individual electrodes disposed in compartmental areas at the same level and a common electrode disposed at a different level from that of the individual electrodes, a voltage control circuit configured to supply voltages to the common electrode and at least one of the individual electrodes in the liquid lens in order to control an interface in the liquid lens, and a capacitance measuring circuit configured to calculate a capacitance between the common electrode and at least one of the individual electrodes in the liquid lens using a switched capacitor.

Abstract: A camera module according to an embodiment of the present invention includes a first plate including a cavity formed therein to accommodate a conductive liquid and a non-conductive liquid; an electrode unit disposed on the first plate, the electrode unit being electrically connected to an external power source to change an interface between the conductive liquid and the non-conductive liquid; an insulation unit disposed on the electrode unit and a control unit controlling a voltage applied to the electrode unit, wherein the electrode unit includes a first electrode and a second electrode electromagnetically interacting with each other to change the interface, wherein the first electrode includes a plurality of electrode sectors arranged sequentially in a clockwise direction with respect to an optical axis, and wherein the control unit performs control so as to apply voltages to driving electrodes by rotation in a clockwise direction or in a counterclockwise direction.

Abstract: Disclosed is a liquid lens control circuit, which includes a liquid lens including a plurality of individual electrodes disposed in compartmental areas at the same level and a common electrode disposed at a different level from that of the individual electrodes, a voltage control circuit configured to supply voltages to the common electrode and at least one of the individual electrodes in the liquid lens in order to control an interface in the liquid lens, and a capacitance measuring circuit configured to calculate a capacitance between the common electrode and at least one of the individual electrodes in the liquid lens using a switched capacitor.

Abstract: The present invention provides a circuit for controlling a voltage for driving a liquid lens including a first voltage generator for outputting a first voltage; a second voltage generator for outputting a second voltage having an opposite polarity to the first voltage; a first switch for selecting one of the first voltage and a ground voltage, and transmitting the selected voltage; a second switch for selecting one of the second voltage and the ground voltage, and transmitting the selected voltage; and a third switch for selecting one of a voltage selected by the first switch and the voltage selected by the second switch, and transmitting the selected voltage, wherein the third switch is plural in number, and the first switch is connected in common to the plurality of third switches.

Abstract: The present embodiment relates to a dual camera module comprising: a first camera module including a first liquid lens and capturing a first image; and a second camera module including a second liquid lens and capturing a second image, wherein a viewing angle of the first camera module is smaller than a viewing angle of the second camera module, at least a part of the viewing angle of the first camera module is included in the viewing angle of the second camera module such that there is an overlapping area between the first image and the second image so as to enable a composite image formed by combining the first image and the second image to be generated, and when the first camera module is focused, a focal length of the first liquid lens is varied according to the distance between the first liquid lens and a subject, and when the second camera module is focused, a focal length of the second liquid lens is varied according to the distance between the second liquid lens and the subject.

Abstract: Disclosed is a liquid lens control circuit, which includes a liquid lens including a plurality of individual electrodes disposed in compartmental areas at the same level and a common electrode disposed at a different level from that of the individual electrodes, a voltage control circuit configured to supply voltages to the common electrode and at least one of the individual electrodes in the liquid lens in order to control an interface in the liquid lens, and a capacitance measuring circuit configured to calculate a capacitance between the common electrode and at least one of the individual electrodes in the liquid lens using a switched capacitor.