公开(公告)号：US20220003870A1

公开(公告)日：2022-01-06

申请号：US17135228

申请日：2020-12-28

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Hyunil BYUN ,  Dongjae Shin ,  Changgyun Shin

IPC: G01S17/58 ,  G01K13/00 ,  G01S7/481 ,  G01S7/4913 ,  G01S17/931 ,  G02F1/313

Abstract: Provided is a light detection and ranging (LiDAR) apparatus including a light source configured to generate light, an optical transmitter configured to emit the light generated by the light source to outside of the LiDAR apparatus, an optical receiver configured to receive light from the outside of the LiDAR apparatus, a resonance-type photodetector configured to selectively amplify and detect light having a same wavelength as a wavelength of light generated by the light source among the light received by the optical receiver, and a processor configured to control the light source and the resonance-type photodetector, wherein the resonance-type photodetector includes a resonator, a phase modulator provided on the resonator and configured to control a phase of light traveling along the resonator based on control of the processor, and an optical detector configured to detect an intensity of the light traveling along the resonator.

公开(公告)号：US20210199808A1

公开(公告)日：2021-07-01

申请号：US17021546

申请日：2020-09-15

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Dongjae SHIN ,  Jisan Lee ,  Hyunil Byun ,  Changgyun Shin ,  Inoh Hwang

IPC: G01S17/894 ,  G01S17/04

Abstract: An object detection device may include: a converter configured to convert a transmission signal radiated towards an object into a digital transmission signal and a received signal reflected from the object into a digital received signal, according to a predetermined sampling period; and at least one processor configured to: interpolate between elements of the digital transmission signal and the digital received signal that have the predetermined sampling period, to obtain an interpolated transmission signal and an interpolated received signal; remove noise from each of the interpolated transmission signal and the interpolated received signal; generate a cross-correlation signal between the interpolated transmission signal from which the noise is removed and the interpolated received signal from which the noise is removed; and acquire a three-dimensional (3D) image of the object based on at least one peak value of the cross-correlation signal.

公开(公告)号：US10983413B2

公开(公告)日：2021-04-20

申请号：US15851061

申请日：2017-12-21

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Changgyun Shin ,  Junghyun Park ,  Dongjae Shin ,  Eunkyung Lee

IPC: G02F1/31 ,  G02F1/313 ,  G02F1/295 ,  G01S17/42 ,  G01S7/481

Abstract: A beam steering device includes an optical waveguide configured to split input light into a plurality of split light along a plurality of paths and output the plurality of split light to a plurality of output terminals which are aperiodically arranged, a plurality of phase shifters provided in the plurality of paths, wherein at least two phase shifters among the plurality of phase shifters have different phase delay length, and a signal input unit configured to supply a uniform signal to each of the plurality of phase shifters.

公开(公告)号：US10761351B2

公开(公告)日：2020-09-01

申请号：US15685314

申请日：2017-08-24

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Duhyun Lee ,  Changgyun Shin ,  Sunil Kim ,  Byounglyong Choi

IPC: G02F1/00 ,  G02F1/01 ,  G02F1/29 ,  G01S17/06

Abstract: A phase modulation active device and a method of driving the same are provided. The method may include configuring, for the phase modulation active device including a plurality of channels that modulate a phase of incident light, a phase profile indicating a phase modulation target value to be implemented by the phase modulation active device; setting a phase limit value of the phase modulation active device; generating a modified phase profile based on the phase profile by modifying the phase modulation target value, for at least one channel from the plurality of channels that meets or exceeds the phase limit value, to a modified phase modulation target value that is less than the phase limit value in the phase profile; and operating the phase modulation active device based on the modified phase profile. Thus, improved optical modulation performance may be achieved.

公开(公告)号：US10423001B2

公开(公告)日：2019-09-24

申请号：US14707272

申请日：2015-05-08

Applicant: Samsung Electronics Co., Ltd.

Inventor： Sunghyun Nam ,  Sookyoung Roh ,  Seokho Yun ,  Changgyun Shin ,  Hyungue Hong

IPC: G02B3/00 ,  G02B27/42 ,  G02B27/10 ,  H01L27/146 ,  H04N9/07

Abstract: Color separation devices, and image sensors including the color separation devices and color filters, include at least two transparent bars that face each other with a gap therebetween. Mutually-facing surfaces of the at least two transparent bars are separated from each other by the gap such that the at least two transparent bars allow diffraction of visible light passing therebetween. The at least two transparent bars have a refractive index greater than a refractive index of a surrounding medium.

公开(公告)号：US10156769B2

公开(公告)日：2018-12-18

申请号：US15405853

申请日：2017-01-13

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Jungwoo Kim ,  Changgyun Shin ,  Sunil Kim

IPC: G02F1/29 ,  G02F1/295

Abstract: A two-dimensional (2D) beam steering device may include a variable refractive index panel configured to generate a prism effect, a waveguide in contact with a surface of the variable refractive index panel, and an electro-optic prism disposed on a surface of the waveguide. The variable refractive index panel may include a variable refractive index layer, a common electrode layer, and an electrode pattern layer. The common electrode layer and the electrode pattern layer may face each other with the variable refractive index layer therebetween.