Lg Innotek Co., Ltd.

Corning Incorporated

Young Seop Moon

Hoon Bae Kim

Young Woon Kim

Chang Hyuck Lee

Sung Ki Jung

Ui Jun Kim

Sang Hun Lee

Hyung Ki Kim

Jae Wook Jung

Han Young Kim

Yu Kyeong Jeong

Hoon Sik Kim

Eun Sung Seo

Chang Wook Kim

Lee Im Kang

Myung Wook Lee

Hyun Woong Jang

A camera module includes a liquid lens including a first plate and an individual electrode disposed on a first surface of the first plate; a resistor disposed on the first surface of the first plate so as to be spaced apart from the individual electrode; and a temperature sensor connected to the resistor and configured to sense a temperature of the liquid lens and a heating controller connected to the resistor and configured to control a temperature of the liquid lens.

Camera module including liquid lens, and control method thereof

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.

Lens curvature variation apparatus

A camera module according to an embodiment includes a liquid lens including a first plate and an individual electrode disposed on a first surface of the first plate; a plurality of temperature detection elements disposed on the first surface of the first plate so as to be spaced apart from the individual electrode; and a temperature sensor connected to the plurality of temperature detection elements to sense a temperature of the liquid lens, wherein the plurality of temperature detection elements includes first and second temperature detection elements spaced apart from each other, wherein the temperature sensor is connected to one end of the first temperature detection element, and wherein an opposite end of the first temperature detection element is connected to one end of the second temperature detection element, and an opposite end of the second temperature detection element is connected to a reference potential.

Camera module including liquid lens

A liquid lens control apparatus according to an embodiment includes: a liquid lens containing a first liquid and a second liquid that form an interface with a first electrode and a second electrode; a lens driver applying a voltage to the first electrode and the second electrode to control the interface, and including a plurality of switching elements; a temperature sensing unit sensing a temperature of the liquid lens; and a control unit controlling the lens driver so that the interface forms a target interface, wherein the control unit controls switching states of the plurality of switching elements of the lens driver to be maintained during a temperature sensing period in which the temperature sensing unit operates.

Liquid lens control device

A lens curvature variation apparatus according to an embodiment includes: a liquid lens including a common electrode and a plurality of individual electrodes; a lens driver applying a voltage to the common electrode and the plurality of individual electrodes; a plurality of switching elements connected to each of the plurality of individual electrodes; a plurality of sensor units connected to each of the plurality of switching elements, and sensing an interface of the liquid lens that changes based on the voltage; a multiplexer (MUX) connected to the plurality of sensor units, and sequentially outputs an analog signal corresponding to the interface output from each of the plurality of sensor units; an AD converter that converts the analog signal sequentially output from the MUX into a digital signal to output; and a control unit controlling the lens driver based on the signal output from the AD converter.

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.

Light detection and ranging device

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.

Circuit for controlling voltage for driving liquid lens and camera module and optical device comprising same

The present invention provides a camera module includes a lens assembly including a plurality of lenses; an image sensor for converting an optical signal transferred through the lens assembly into an electric signal; a gyro sensor for outputting a variation signal in response to movement of the lens assembly and the image sensor; a stabilization controller for determining, in response to the variation signal, a first compensation value used to perform optical image stabilization (OIS) by driving at least one of the lenses and determining a second compensation value used to perform electronic image stabilization (EIS) by adjusting an effective area of the image sensor; and a movement correction device outputting a first control signal and a second control signal to perform image stabilization in response to the first compensation value and the second compensation value.

Camera module, method of correcting movement of the module, image stabilization device therefor

A liquid lens includes a first plate including a cavity accommodating a conductive liquid and a non-conductive 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.

Liquid lens, camera module including the same, and method for controlling the liquid lens

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.

Circuit for controlling liquid lens

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.

Camera module including liquid lens and method for controlling the same

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.

Dual camera module, optical device, camera module, and method for operating camera module

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.

Optical output module, vehicle including same, and control method therefor

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.

Method for applying driving voltage for liquid lens, camera module, and optical instrument including the module

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.

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Seoul, South Korea

Young Seop Moon