Samsung Electronics Co., Ltd.

Hewlett-packard Development Company, L.P.

Hp Printing Korea Co., Ltd.

In Sik Park

Jung-wan Ko

Kyung-geun Lee

Yong-jin Ahn

Tatsuhiro Otsuka

Seong-sue Kim

De-seop Yoon

Chang-jin Yang

In-sik Park

Du-seop Yoon

Jungwoo Kim

Yong-Jin Ahn

Heesun Yoon

Seong-sin Joo

Inoh Hwang

Byoung-ho Choi

Byung-in Ma

Jung-Wan Ko

Jae-seong Shim

Keon Kuk

Dae-Hwan Kim

Jin-han Kim

Jun-o Kim

Chong-sam Chung

Junghyun Park

Duhyun Lee

Yong Ho Kim

Hyun-Soo Park

Changgyun Shin

Young-man Ahn

Tae-Kyung Kim

Jong-bae Kim

Jin-Han Kim

Wook-yeon Hwang

Dongjae Shin

Hea-jung Suh

Young-min Cheong

Young-Man Ahn

Soon-cheol Kweon

Taek-Seong Jeong

Chul Baik

Sung-hyun Kim

In-oh Hwang

Hyun Geun Jo

Jae-Cheol Bae

Hyunil Byun

Yongchul Cho

Kyung-Geun Lee

Young-dae Ko

An-sik Jeong

In-Joo Kim

Byung Hwa Seo

In-Sik Park

Jong-hyun Shin

Hong Suk Kim

Jin-hoon Jeon

Hyun Min Song

Jun Cheol Bae

Seong-Sue Kim

Chang-Jin Yang

Wook-Yeon Hwang

Ki-hwan Kwon

Dong Hyun Sohn

Moon Il Jung

Jisan Lee

Du-Seop Yoon

Joo Ho Kim

Hee Yuel Roh

Young-jae Park

Kyunghyun Son

Ji Su Jung

Jun Sung Chung

Kang Min Lee

Yong Jin Ahn

Jong Hyun Ryu

Seok Min Oh

Chul Ho Han

Young-jin Ahn

An-Sik Jeong

De-Seop Yoon

Yong-Jn Ahn

A light detection device may include: a light receiver comprising a plurality of light detectors configured to receive light emitted from a light emitter toward an object and reflected by the object; and a signal processor configured to process an electrical signal according to the light received by the light receiver. The light receiver includes at least one light receiving area, wherein each of the at least one light receiving area includes a plurality of sub-light receiving areas, and the plurality of light detectors are disposed in the plurality of sub-light receiving areas, respectively. The signal processor includes a plurality of transimpedance amplifiers that have a one-on-one correspondence with the plurality of light detectors, and at least one signal summer that has the one-on-one correspondence with the at least one light receiving area.

Light detection device, lidar device including the same, and method of measuring distance

A light detection and ranging (LiDAR) apparatus with a wide viewing angle includes: a first rotatable mirror array including a first plurality of inclined mirrors arranged in a circumferential direction; a plurality of light sources configured to emit light toward the first rotatable mirror array; a second rotatable mirror array including a second plurality of inclined mirrors arranged in the circumferential direction, the second rotatable mirror array facing the first rotatable mirror array to reflect the light reflected by the first rotatable mirror array to an outside of the LiDAR apparatus; and a photodetector configured to detect the light reflected by the second rotatable mirror array, wherein the plurality of light sources may be provided in a plurality of sections into which an angle range of 180 degrees or more is divided in equal intervals in the circumferential direction.

Lidar apparatus having wide-viewing angle

Provided is a beam scanning apparatus including a plurality of antenna resonators disposed two-dimensionally in a row direction and a column direction, a plurality of row voltage lines that are configured to provide a plurality of driving voltages in a row direction, respectively, a plurality of column voltage lines that are configured to provide a plurality of driving voltages in a column direction, respectively, and a driving voltage conversion circuit configured to control a driving voltage applied to each of the plurality of antenna resonators based on a driving voltage in the row direction that is provided from each of the plurality of row voltage lines and a driving voltage in the column direction that is provided from each of the plurality of column voltage lines.

Beam scanning apparatus and optical apparatus including the same

Provided is a light detection and ranging (LiDAR) device including a light transmitter including a plurality of light sources, each of the plurality of light sources being configured to emit light toward an object, a light receiver including a plurality of light detection elements, each of the plurality of light detection elements being configured to detect reflected light reflected from the object that is irradiated with the light emitted by the plurality of light sources, and the light receiver being configured to remove crosstalk from second detection information output by at least one light detection element of the plurality of light detection elements based on first detection information output by any one of remaining light detection elements of the plurality of light detection elements, and a processor configured to obtain information on the object based on the second detection information with the crosstalk removed.

LiDAR device and method of operating the same

An optical scanner includes at least one light source configured to emit light, a steering unit configured to perform scanning in a first direction based on the light emitted from the at least one light source, and a polygon mirror configured to perform, by using the light output from the steering unit, scanning in a second direction different than the first direction based on a rotation of the polygon mirror. The steering unit includes a plurality of first prisms, and each of the plurality of first prisms includes an incident facet configured to pass the light emitted from the at least one light source, and an output facet configured to refract and output the light. The polygon mirror includes a plurality of reflective facets, and each of the plurality of reflective facets is configured to that reflect the light output from the steering unit.

Optical scanner and LIDAR system including the same

Provided are a LiDAR device and a method of operating the LiDAR device. The LiDAR device includes a light-emitting unit configured to emit modulated light onto an object, a light-receiving unit configured to receive the modulated light reflected by the object, a computation unit configured to calculate a distance to the object based on a reception signal of the modulated light provided by the light-receiving unit, a modulation unit configured to provide a modulation signal to the light-emitting unit to generate the modulated light, and a controller configured to control operations of at least one of the light-emitting unit, the light-receiving unit, the computation unit, and the modulation unit.

Provided are a light detection and ranging (LiDAR) device and a method using the same. The LiDAR device includes a light scanner configured to periodically scan a region in a surrounding area by sequentially changing a traveling path of incident light; a first light source configured to provide a first light to the light scanner in a first incidence direction; and a second light source configured to provide a second light to the light scanner in a second incidence direction different from the first incidence direction.

Distance measuring device and method of measuring distance by using the same

An optical device according to an embodiment may include: a plurality of light sources configured to emit laser beams; a light direction changing unit comprising at least one of a prism and a mirror, provided on traveling paths of the laser beams, and configured to focus the laser beams at one point by changing travelling directions of the laser beams to form constant angles between the traveling paths of the laser beams; and a scanning mirror configured to perform two-dimensional scanning by reflecting the laser beams received from the light direction changing unit.

Optical device and LiDAR system including the same

Light detection and ranging (LiDAR) systems and methods of operating the LiDAR systems are provided. The LiDAR system includes a light emitter configured to emit first lights of different wavelengths in a vertical direction and at different scanning angles with respect to a horizontal axis, a lens configured to converge second lights that are reflected from objects on which the first lights are emitted, and a light filter comprising an active-type device configured to adjust a transmission central wavelength of the active-type device to the different wavelengths of the first lights that are emitted from the light emitter. The LiDAR system further includes a controller configured to control an operation of the light emitter and the light filter, and a detector configured to detect light from the light emitter, and obtain information about the objects.

LiDAR system and method of operating the same

Provided in a light detection and ranging (LiDAR) device including a scanning optical system including a plurality of light sources and a beam steering device, the scanning optical system being configured to scan an object with a plurality of irradiation beams projected from the plurality of light sources toward the object at a plurality of irradiation angles, respectively, a light detector including a plurality of pixel regions that are configured to separately detect the plurality of irradiation beams projected toward the object at the plurality of irradiation angles and reflected from the object, and a processor configured to control the scanning optical system and the light detector, and obtain information about the object based on the plurality of irradiation beams detected by the light detector.

Light detection and ranging device and method of driving the same

Provided are a method of identifying light reflected from an object, from among light incident from a plurality of different directions, based on information about an irradiation angle of light irradiated by a light source, and a light detection and ranging (LiDAR) apparatus therefor.

LiDAR apparatus and operating method thereof

Provided is a distance measuring method and device for selecting an optimum peak detection signal from among a plurality of peak detection signals, based on a level of at least one of a plurality of amplified electrical signals, and measuring a distance to an object by using the selected optimum peak detection signal.

Distance measuring device and method

Provided is a distance measuring device and a method of measuring a distance. The distance measuring device detects light reflected by an object, generates an electrical signal based on the detected light, detects whether the electrical signal is saturated or not by comparing the electrical signal with a reference value, controls a magnitude of the electrical signal based on whether the signal is saturated, and calculates a distance to the object using the electrical signal.

The present disclosure is directed to providing to a smart window system capable of controlling a state of a display element (e.g., at least one of transparency, color, pattern, gradation degree, and displayed information) through various kinds of input devices and a control method thereof. In accordance with one aspect of the present disclosure, a smart window system may include a display element; an input device configured to receive a control command for the display element; and a controller configured to determine at least one of transparency, color, pattern, and gradation of the display element and information displayed on the display element on the basis of the control command.

Smart window system and control method therefor

Growing community of inventors

Suwon-si, South Korea

Tatsuhiro Otsuka