公开(公告)号：US11630262B2

公开(公告)日：2023-04-18

申请号：US17357503

申请日：2021-06-24

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Dongjae Shin ,  Hyunil Byun ,  Jinmyoung Kim ,  Changgyun Shin ,  Changbum Lee

IPC: G02B6/12 ,  G01S7/481 ,  G01S17/88

Abstract: Provided is an optical isolator including a semiconductor substrate, an optical attenuator and an optical amplifier aligned with each other on the semiconductor substrate, an input optical waveguide connected to the optical attenuator, and an output optical waveguide connected to the optical amplifier, wherein a gain of the optical amplifier decreases based on an intensity of light incident on the optical amplifier increasing, wherein a first input light incident on the optical attenuator through the input optical waveguide is output as a first output light through the output optical waveguide, and a second input light incident on the optical amplifier through the output optical waveguide is output as a second output light through the input optical waveguide, and wherein when an intensity of the first input light and an intensity of the second input light are equal, an intensity of the first output light is greater than an intensity of the second output light.

公开(公告)号：US20220334255A1

公开(公告)日：2022-10-20

申请号：US17478391

申请日：2021-09-17

Applicant: SAMSUNG ELECTRONICS CO., LTD.

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

IPC: G01S17/58 ,  G01S17/06 ,  G01S7/481 ,  G01S7/497 ,  G01S17/931 ,  G02F1/31 ,  G02F1/29 ,  G02B27/30

Abstract: Provided is a light detection and ranging (LiDAR) apparatus including a plurality of switches connected in a binary tree structure, a light source and a photodetector respectively connected to a root switch provided on a root node of the binary tree structure, and a light transmission/reception optical system connected to a plurality of terminal switches provided at a plurality of terminal nodes of the binary tree structure, the light transmission/reception optical system being configured to transmit light to an outside of the LiDAR apparatus or receive light from the outside, wherein the root switch is a 2×2 switch including a first upstream side port, a second upstream side port, a first downstream side port, and a second downstream side port, and wherein the light source is connected to the first upstream side port and the photodetector is connected to the second upstream side port.

公开(公告)号：US10928700B2

公开(公告)日：2021-02-23

申请号：US15683882

申请日：2017-08-23

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Changbum Lee ,  Sunil Kim ,  Duhyun Lee ,  Byounglyong Choi

IPC: G02F1/29

Abstract: Nano antenna structures and methods of manufacturing the same are provided. A nano antenna structure includes a reflective layer, a transparent conductive layer disposed on the reflective layer, an insulating layer disposed on the transparent conductive layer, a nano antenna material layer disposed on the insulating layer, and an adhesion layer disposed between the insulating layer and the nano antenna material layer.

公开(公告)号：US20210033892A1

公开(公告)日：2021-02-04

申请号：US17075007

申请日：2020-10-20

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Sunil KIM ,  Changbum Lee ,  Byounglyong Choi

IPC: G02F1/015 ,  G02B1/00 ,  G02F1/29 ,  G02F1/00

Abstract: A beam steering apparatus may include: a mirror; a refractive index modulation layer disposed on the mirror; a nanoantenna on the refractive index modulation layer; and an insulating layer disposed between the nanoantenna and the refractive index modulation layer, wherein the insulating layer has a thickness distribution in which a first thickness of the insulating layer on a central region of the mirror is less than a second thickness of the insulating layer on an edge region of the mirror, wherein a refractive index of the refractive index modulation layer is modulated to control propagation direction of beam.

公开(公告)号：US10707639B2

公开(公告)日：2020-07-07

申请号：US15681724

申请日：2017-08-21

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Sunil Kim ,  Duhyun Lee ,  Changbum Lee ,  Byounglyong Choi

IPC: H01S3/00 ,  G02F1/29 ,  H01S5/00

Abstract: A laser beam steering device and a system including the laser beam steering device are provided. The laser beam steering device includes a refractive index change layer having a refractive index that changes based on an electrical signal; at least one antenna pattern disposed above the refractive index change layer; a wavelength selection layer disposed under the refractive index change layer and configured to correspond to a wavelength of a laser beam incident onto the laser beam steering device; and a driver configured to apply the electrical signal to the refractive index change layer.

公开(公告)号：US09869780B2

公开(公告)日：2018-01-16

申请号：US14738530

申请日：2015-06-12

Applicant: Samsung Electronics Co., Ltd.

Inventor： Duhyun Lee ,  Byungkyu Lee ,  Sunil Kim ,  Jaechul Park ,  Dongwook Lee ,  Changbum Lee

IPC: G01T1/24 ,  H01B1/02 ,  H01L27/146

CPC classification number: G01T1/244 ,  G01T1/24 ,  H01B1/02 ,  H01L27/14676

Abstract: A method of manufacturing an organic-inorganic composite thin film may include: forming a thin film from a paste that includes an inorganic powder and an organic compound binder by using a screen printing process; and/or performing a pressing process and a heating process with respect to the thin film. The heating process may be performed at a glass transition temperature of the organic compound binder or in a temperature range higher than the glass transition temperature of the organic compound binder. An X-ray detector configured to detect X-rays irradiated from an outside of the X-ray detector may include: a photoconductive material layer in which electron-hole pairs are formed due to absorption of the X-rays. The photoconductive material layer may be formed of an organic-inorganic composite thin film that includes an inorganic powder and an organic compound binder.