公开(公告)号：US10281395B2

公开(公告)日：2019-05-07

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

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.

公开(公告)号：US11506785B2

公开(公告)日：2022-11-22

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: G01S17/04 ,  G02B3/00 ,  G01J1/08 ,  G01J1/04 ,  G01S17/931 ,  G01S7/481 ,  G02B7/02 ,  G02B27/30

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：US10215680B2

公开(公告)日：2019-02-26

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: G01N21/00 ,  G01N15/06 ,  G01N15/14 ,  G01N15/00

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：US09417059B2

公开(公告)日：2016-08-16

申请号：US13834256

申请日：2013-03-15

Applicant: LG ELECTRONICS INC.

Inventor： Nakhoon Go ,  Yongho Cho ,  Sangkeun Lee ,  Pilwon Jeong

IPC: G01C3/08 ,  G01B11/22 ,  G06T15/00 ,  G01S17/89 ,  G01S7/481 ,  G01S17/10 ,  G01S17/36

CPC classification number: G01B11/22 ,  G01S7/4815 ,  G01S7/4817 ,  G01S17/105 ,  G01S17/36 ,  G01S17/89 ,  G06T15/00

Abstract: A distance detecting device and an image processing apparatus including the same are disclosed. The distance detecting device includes a first light source to output a first output beam and a second light source to output a second output beam having a wavelength different from that of the first output beam, a scanner to progressively perform first directional scanning and second directional scanning to output the first output beam and the second output beam to an outside, a first detecting unit to convert a first received beam corresponding to the first output beam into a first electric signal, a second detecting unit to convert a second received beam corresponding to the second output beam into a second electric signal, and a controller to detect a distance from an external target based on the first electric signal and the second electric signal.

Abstract translation: 公开了一种距离检测装置及包括该距离检测装置的图像处理装置。 距离检测装置包括用于输出第一输出光束的第一光源和第二光源，以输出具有与第一输出光束的波长不同的波长的第二输出光束;扫描器，逐渐执行第一定向扫描和第二定向扫描 将第一输出光束和第二输出光束输出到外部;第一检测单元，将对应于第一输出光束的第一接收光束转换为第一电信号;第二检测单元，将对应于第一输出光束的第二接收光束 第二输出光束变为第二电信号，以及控制器，用于根据第一电信号和第二电信号检测与外部目标的距离。