公开(公告)号：US20220269066A1

公开(公告)日：2022-08-25

申请号：US17630300

申请日：2019-07-31

Applicant: LG ELECTRONICS INC.

Inventor： Hyungseok BANG ,  Seonghong PARK ,  Sangchul LEE ,  Chaedeok LEE

IPC: G02B26/06 ,  G02B27/30 ,  G02B26/08

Abstract: The present invention relates to a beam steering device for steering a beam without a physical movement, the beam steering device comprising: a light source unit for irradiating parallel light; and a phase control array for controlling a reflection angle of the parallel light irradiated from the light source unit, wherein the phase control array comprises a plurality of cells in a region where the parallel light is irradiated, and the reflection angle is controlled by controlling the phase of light reflected by each of the plurality of cells.

公开(公告)号：US20190196016A1

公开(公告)日：2019-06-27

申请号：US16322250

申请日：2016-08-23

Applicant: LG ELECTRONICS INC.

Inventor： Bolam KIM ,  Seonghong PARK ,  Sangkeun LEE ,  Pilwon JEONG ,  Yongho CHO

IPC: G01S17/02 ,  G01S7/481 ,  G01S17/93

CPC classification number: G01S17/026 ,  G01J1/04 ,  G01J1/08 ,  G01S7/4814 ,  G01S17/936 ,  G02B7/02

Abstract: The present invention provides an asymmetric optical sensor device comprising: a light emitting unit for outputting light; a light receiving unit which receives the light reflected by an external object, and consists of a plurality of pixels which correspond to regions of different angles with respect to the light emitting unit and are arranged in a row; and a lens unit for diffusing the light from the light emitting unit. The light amounts received by the plurality of pixels are light amount values which are asymmetric with respect to the center of the light receiving unit.

公开(公告)号：US20190095681A1

公开(公告)日：2019-03-28

申请号：US15878211

申请日：2018-01-23

Applicant: LG ELECTRONICS INC.

Inventor： Chaedeok LEE ,  Seonghong PARK ,  Junhak LEE

IPC: G06K9/00 ,  G06F21/32 ,  H04N5/232 ,  H04N5/225 ,  H04N5/33

Abstract: A digital device including a camera unit; and a controller configured to in response to a request to execute a first application on the digital device having a first security authentication level, control the camera unit to capture first vein image data at a first depth of a particular body part of a target and perform a first authentication process by comparing the captured first vein image data with prestored first vein image data, and in response to a request to execute a second application on the digital device having a second security authentication level more secure than the first authentication level, control the camera unit to capture second vein image data at a second depth of the particular body part of the target and perform the first authentication process and a second authentication process by comparing the captured second vein image data with prestored second vein image data.

公开(公告)号：US20180024037A1

公开(公告)日：2018-01-25

申请号：US15651598

申请日：2017-07-17

Applicant: LG ELECTRONICS INC.

Inventor： Yongho CHO ,  Bolam KIM ,  Seonghong PARK ,  Sangkeun LEE ,  Pilwon JEONG

IPC: G01N15/06

CPC classification number: G01N15/06 ,  G01N15/1429 ,  G01N15/1459 ,  G01N2015/0046 ,  G01N2015/0693

Abstract: Disclosed herein are a dust measuring apparatus and a mobile terminal for controlling the same. The dust measuring apparatus includes a flow channel defining unit for defining a flow channel allowing a fluid containing dust to move through, a light emitter for emitting light into the flow channel, a light detector for detecting light scattered from the dust in the flow channel and converting the same into an electrical signal, and a controller for controlling the flow channel defining unit, the light emitter and the light detector. The controller is configured to verify whether a detection value received from the light detector is within an effective measurement range, vary the effective measurement range when the detection value is outside the effective measurement range, and measure, when the detection value is within the varied effective measurement range, a dust concentration based on the detection value.

公开(公告)号：US20180011018A1

公开(公告)日：2018-01-11

申请号：US15625825

申请日：2017-06-16

Applicant: LG ELECTRONICS INC.

Inventor： Bolam KIM ,  Seonghong PARK ,  Sangkeun LEE ,  Pilwon JEONG ,  Yongho CHO

IPC: G01N21/53 ,  G01N21/47

CPC classification number: G01N21/53 ,  G01N2021/4711 ,  G01N2021/473

Abstract: Disclosed herein is a dust measuring apparatus and method for measuring a dust concentration in a flow channel. The apparatus includes a flow channel unit for defining a flow channel allowing a fluid containing dust to move therethrough, a light emitter for emitting light into the flow channel, a light detector for detecting light scattered from the dust in the flow channel and converting it to an electrical detection signal, the light detector including a plurality of detectors having different light detection ranges, and a controller for controlling the flow channel unit, the light emitter and the light detector, wherein the controller is configured to receive detection signals from the detectors, compensate for an offset for the received detection signals, and measure a dust concentration based on the compensated detection signals.