公开(公告)号：US20230003965A1

公开(公告)日：2023-01-05

申请号：US17757284

申请日：2020-12-10

Applicant: LG INNOTEK CO., LTD.

Inventor： Jung Bae PARK ,  Ui Jun KIM

IPC: G02B7/02 ,  G02B3/14 ,  H04N5/225 ,  G02B7/08

Abstract: An embodiment is a camera module comprising: a lens assembly comprising a liquid lens which comprises a first liquid and a second liquid forming an interface with each other; a temperature sensor for sensing the temperature information of the liquid lens; a controller for adjusting the interface by applying a driving signal to the liquid lens; and a compensation unit for outputting, to the controller, feedback information in which the inclination of the diopter of the liquid lens with respect to the driving signal is proportional to the temperature in a first area and the inclination of the diopter of the liquid lens with respect to the driving signal is inversely proportional to the temperature in a second area which differs from the first area.

公开(公告)号：US20220342125A1

公开(公告)日：2022-10-27

申请号：US17753960

申请日：2020-09-17

Applicant: LG INNOTEK CO., LTD.

Inventor： Ui Jun KIM

IPC: G02B3/14 ,  G03B17/55

Abstract: An embodiment of the present invention comprises: a lens assembly including a liquid lens; a temperature sensor sensing the temperature of the liquid lens; an image sensor receiving light passing through the lens assembly; a detection unit detecting a first driving signal applied to the liquid lens so as to adjust an interface of the liquid lens; and a determination unit comparing the temperature with a target temperature to provide a heating signal to a heater for adjusting the temperature of the liquid lens or to provide the temperature to a compensation unit. The compensation unit discloses a camera module generating a second driving signal which readjusts the interface of the liquid lens by compensating the temperature to the first driving signal.

公开(公告)号：US20220390652A1

公开(公告)日：2022-12-08

申请号：US17774254

申请日：2020-11-04

Applicant: LG INNOTEK CO., LTD.

Inventor： Ui Jun KIM

IPC: G02B3/14 ,  G02B26/00 ,  G02B7/02 ,  G02B7/09

Abstract: An embodiment provides an optical device comprising: a lens assembly which includes a liquid lens comprising a first liquid and a second liquid forming an interface therebetween; a temperature sensor which senses the temperature of the liquid lens; and a controller which controls a driving signal for the liquid lens, wherein the controller controls the driving signal by using a first function when the sensed temperature is in a first temperature range and by using a second function different from the first function when the sensed temperature is in a second temperature range.

公开(公告)号：US20220066122A1

公开(公告)日：2022-03-03

申请号：US17415935

申请日：2019-12-13

Applicant: LG INNOTEK CO., LTD.

Inventor： Ui Jun KIM ,  Young Woon KIM ,  Young Seop MOON

IPC: G02B7/02 ,  G02B3/14 ,  G02B7/00 ,  H04N5/225

Abstract: 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.

公开(公告)号：US20230353849A1

公开(公告)日：2023-11-02

申请号：US17753956

申请日：2020-09-18

Applicant: LG INNOTEK CO., LTD.

Inventor： Ui Jun KIM ,  Jung Bae PARK

IPC: H04N23/52 ,  G02B3/14 ,  H04N23/65

CPC classification number: H04N23/52 ,  G02B3/14 ,  H04N23/65

Abstract: Disclosed in an embodiment is a camera module including a lens assembly including a liquid lens including a first liquid and a second liquid which form an interface therebetween, a voltage controller which applies a driving signal to the liquid lens to adjust the interface, a temperature sensor which detects temperature information of the liquid lens, an image sensor which receives light passing through the lens assembly, a sensing unit which detects information corresponding to the interface of the liquid lens, and a compensation unit which outputs feedback information to the voltage controller using the information corresponding to the interface of the liquid lens and the temperature information.

公开(公告)号：US20200041863A1

公开(公告)日：2020-02-06

申请号：US16499558

申请日：2018-03-30

Applicant: LG INNOTEK CO., LTD.

Inventor： Jun Phill EOM ,  Ui Jun KIM

IPC: G02F1/29 ,  H04N5/232

Abstract: A liquid lens includes a cavity in which a conductive liquid and a non-conductive liquid are disposed and at least one first through-hole in which at least one of a conductive material or an adhesive material is disposed, a first electrode disposed on the first plate, a second electrode disposed under the first plate, the second electrode including a plurality of electrode sectors, a second plate disposed on the first electrode, and a third plate disposed under the second electrode.