公开(公告)号：US20240168131A1

公开(公告)日：2024-05-23

申请号：US18376657

申请日：2023-10-04

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Woosung KIM ,  Hyunil BYUN ,  Dongjae SHIN ,  Changbum LEE ,  Changgyun SHIN ,  Tatsuhiro OTSUKA

IPC: G01S7/481 ,  G01R19/25 ,  G01S17/931

CPC classification number: G01S7/4811 ,  G01R19/25 ,  G01S7/4814 ,  G01S17/931

Abstract: An optical device and a light detection and ranging (LiDAR) device each including a heater combined temperature sensor are disclosed. The optical device including the heater combined temperature sensor may include a heater, an analog-to-digital converter (ADC) configured to measure a voltage of the heater, a memory storing a measurement value, and a micro-controller configured to estimate a temperature of the heater based on relationship between the measurement value and the temperature.

公开(公告)号：US20230111441A1

公开(公告)日：2023-04-13

申请号：US17682888

申请日：2022-02-28

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Changgyun SHIN ,  Hyunil BYUN ,  Dongjae SHIN ,  Changbum LEE

IPC: G01S7/481

Abstract: Provided is a light detection and ranging (LiDAR) device including a housing including a window configured to transmit light, a light transmitter provided in the housing and configured to output light toward an object outside of the housing, an optical element provided adjacent to the window, first light from among the light being incident on the optical element, a light receiver provided in the housing and configured to receive, from among the light, second light reflected from the object, and a processor configured to change a steering direction of the light such that a ratio of the first light to the light is reduced.

公开(公告)号：US20190004394A1

公开(公告)日：2019-01-03

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: G02F1/313 ,  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：US20180136537A1

公开(公告)日：2018-05-17

申请号：US15815188

申请日：2017-11-16

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Sunil KIM ,  Jungwoo KIM ,  Duhyun LEE ,  Changgyun SHIN ,  Byounglyong CHOI

IPC: G02F1/29 ,  G01S7/481

Abstract: A two-dimensional (2D) light modulating device may include a plurality of phase modulating elements and a circuit board. The plurality of phase modulating elements may include a meta surface having a nano-structure. The circuit board may be configured to independently control electrical signals that are respectively transmitted to the plurality of phase modulating elements. The circuit board may include a plurality of pixel circuit units. Each of the plurality of pixel circuit units may include a transistor and a capacitor.

公开(公告)号：US20180074382A1

公开(公告)日：2018-03-15

申请号：US15700391

申请日：2017-09-11

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Duhyun LEE ,  Changgyun SHIN ,  Jisoo KYOUNG ,  Byounglyong CHOI

IPC: G02F1/19 ,  G02B26/06 ,  G02F1/29 ,  G02F1/00 ,  G02F1/03

CPC classification number: G02F1/19 ,  G02B26/06 ,  G02F1/0018 ,  G02F1/0316 ,  G02F1/292 ,  G02F2203/10 ,  G02F2203/50

Abstract: A phase modulation active device and a method of driving the phase modulation active device are provided. The phase modulation active device includes channels independently modulating a phase of incident light. The method includes selecting a first phase value and a second phase value to be used for the channels, setting a binary phase profile by allocating the selected first phase value or the selected second phase value to each of the channels quasi-periodically, in a sequence in which the channels are arranged, and driving the phase modulation active device, based on the set binary phase profile.

公开(公告)号：US20170168324A1

公开(公告)日：2017-06-15

申请号：US15364796

申请日：2016-11-30

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Sunil KIM ,  Changgyun SHIN ,  Duhyun LEE ,  Jungwoo KIM

IPC: G02F1/015 ,  H01L29/786 ,  G02F1/29 ,  H01L29/24

CPC classification number: G02F1/015 ,  B82Y20/00 ,  G02B1/002 ,  G02F1/0009 ,  G02F1/29 ,  G02F2202/30 ,  H01L29/24 ,  H01L29/7869

Abstract: A meta device includes a plurality of meta structures that spaced apart from each other and reflect at least a portion of incident light, a plurality of electrodes that are spaced apart from each other, and a controller configured to control a phase shift of reflected light using a voltage applied to the plurality of electrodes.

公开(公告)号：US20210088813A1

公开(公告)日：2021-03-25

申请号：US16805070

申请日：2020-02-28

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Duhyun LEE ,  Changgyun SHIN ,  Sunil KIM ,  Junghyun PARK ,  Byunggil JEONG

IPC: G02F1/017 ,  G02F1/01 ,  G02F1/19

Abstract: A light modulator for amplifying an intensity of incident light and modulating a phase of the incident light is provided. The light modulator includes: a first distributed Bragg reflector (DBR) layer having a first reflectivity and comprising at least two first refractive index layers that have different refractive indices from each other and are repeatedly alternately stacked; a second DBR layer having a second reflectivity and comprising at least two second refractive index layers that have different refractive indices from each other and are repeatedly alternately stacked; and an active layer disposed between the first DBR layer and the second DBR layer, and comprising a quantum well structure.

公开(公告)号：US20200348541A1

公开(公告)日：2020-11-05

申请号：US16932436

申请日：2020-07-17

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Duhyun LEE ,  Changgyun SHIN ,  Sunil KIM ,  Byounglyong CHOI

IPC: 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：US20190294019A1

公开(公告)日：2019-09-26

申请号：US16277071

申请日：2019-02-15

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Junghyun PARK ,  Jungwoo KIM ,  Byunggil JEONG ,  Changgyun SHIN ,  Byounglyong CHOI

IPC: G02F1/19 ,  G02F1/01

Abstract: A beam scanning apparatus includes a light source configured to emit light, and a reflective phased array device configured to reflect the light emitted from the light source and incident on the reflective phased array device, and electrically adjust a reflection angle of the reflected light reflected by the reflective phased array device, wherein the light source and the reflective phased array device are disposed such the light is incident on the reflective phased array device at an incidence angle with respect to a normal of a reflective surface of the reflective phased array device.

公开(公告)号：US20180158856A1

公开(公告)日：2018-06-07

申请号：US15830166

申请日：2017-12-04

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Seunghoon HAN ,  Lilong SHI ,  Kwanghee LEE ,  Changgyun SHIN

IPC: H01L27/146 ,  H01L51/42 ,  H01L31/103 ,  H01L27/30

CPC classification number: H01L27/14621 ,  H01L27/14629 ,  H01L27/14647 ,  H01L27/307 ,  H01L31/02327 ,  H01L31/1013 ,  H01L31/103 ,  H01L51/42

Abstract: A stack-type image sensor may include a photodiode and a meta-filter. The photodiode may include a first photodiode configured to absorb first light of a first wavelength band and a second photodiode disposed on the first photodiode and configured to absorb second light of a second wavelength band. The meta-filter may include a first meta-filter disposed in a lower portion of the first photodiode and configured to reflect the first light of the first wavelength band to the first photodiode.