公开(公告)号：US12140824B2

公开(公告)日：2024-11-12

申请号：US17842327

申请日：2022-06-16

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Duhyun Lee ,  Changgyun Shin ,  Sunil Kim ,  Junghyun Park ,  Byunggil Jeong

IPC: G02F1/017 ,  G02F1/01 ,  G02F1/19 ,  B82Y20/00 ,  G02F1/015

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：US12032267B2

公开(公告)日：2024-07-09

申请号：US16790993

申请日：2020-02-14

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Byunggil Jeong ,  Sunil Kim ,  Junghyun Park ,  Duhyun Lee

IPC: G02F1/31 ,  G02B5/08 ,  G02B5/12 ,  G02B6/28 ,  G02B6/35 ,  G02B6/42 ,  G02F1/01 ,  G02F1/015 ,  G02F1/017

CPC classification number: G02F1/31 ,  G02B5/0816 ,  G02B5/085 ,  G02B5/12 ,  G02B6/2856 ,  G02B6/3576 ,  G02B6/4269 ,  G02F1/0147 ,  G02F1/0151 ,  G02F1/017 ,  G02F2201/30 ,  G02F2201/346 ,  G02F2203/24

Abstract: Provided a light modulating device including a variable mirror including a plurality of lattice structures, the plurality of lattice structures including a material having a refractive index that changes based on a temperature of the material, a distributed Bragg mirror spaced apart from the variable mirror and provided above the variable mirror, the distributed Bragg mirror including a first material layer and a second material layer that are alternately stacked, and a refractive index of the first material layer being different from a refractive index of the second material layer, and a heating portion configured to heat the plurality of lattice structures and provided below the variable mirror opposite to the distributed Bragg mirror.

公开(公告)号：US11971558B2

公开(公告)日：2024-04-30

申请号：US17166641

申请日：2021-02-03

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Sunil Kim ,  Junghyun Park ,  Duhyun Lee ,  Byunggil Jeong

IPC: G02B27/10 ,  G01S7/481

CPC classification number: G02B27/1026 ,  G01S7/4814

Abstract: A spatial light modulator and a beam steering apparatus including the same are provided. The spatial light modulator includes a first reflective layer; a cavity layer provided on the first reflective layer; and a reflective layer including a plurality of unit lattice structures that are provided on the cavity layer are and spaced apart from each other. Each of the plurality of unit lattice structures has a polycrystalline structure, and at least one grain of the polycrystalline structure has a column shape and a height equal to a height of the plurality of unit lattice structures.

公开(公告)号：US11625571B2

公开(公告)日：2023-04-11

申请号：US16508484

申请日：2019-07-11

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Duhyun Lee ,  Jaeduck Jang

IPC: G06V10/00 ,  G06N3/04 ,  G02B27/10 ,  G02B27/28 ,  G02B26/02 ,  G06N3/067 ,  G06V10/14 ,  G06V10/141 ,  G06V10/145 ,  G06V10/147 ,  H04N5/235

Abstract: Provided are an optical device which is capable of optically implementing an activation function of an artificial neural network and an optical neural network apparatus which includes the optical device. The optical device may include: a beam splitter splitting incident light into first light and second light; an image sensor disposed to sense the first light; an optical shutter configured to transmit or block the second light; and a controller controlling operations of the optical shutter, based on an intensity of the first light measured by the image sensor.

公开(公告)号：US11536980B2

公开(公告)日：2022-12-27

申请号：US17089261

申请日：2020-11-04

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Sunil Kim ,  Junghyun Park ,  Duhyun Lee ,  Byunggil Jeong

IPC: G02B27/09 ,  H01L27/146 ,  G01S7/481 ,  G01S7/4914

Abstract: Provided is a beam steering apparatus including a driving pixel unit including a plurality of driving pixels that are respectively configured to supply a voltage or a current, a light modulator including a plurality of pixels corresponding to the plurality of driving pixels, each pixel of the plurality of pixels being configured to modulate incident light, and a wiring layer including a wiring structure configured to electrically connect the plurality of driving pixels to the plurality of pixels, wherein the wiring structure includes a first conductive wire connected to the plurality of driving pixels, a second conductive wire connected to the plurality of pixels, and at least one third conductive wire connected between the first conductive wire and the second conductive wire, and wherein the first conductive wire, the second conductive wire, and the at least one third conductive wire form a step structure.

公开(公告)号：US20220206322A1

公开(公告)日：2022-06-30

申请号：US17697791

申请日：2022-03-17

Applicant: SAMSUNG ELECTRONICS CO.,LTD.

Inventor： Sunil KIM ,  Junghyun Park ,  Duhyun Lee ,  Byunggill Jeong

IPC: G02F1/015 ,  H01S5/00 ,  H01S5/183

Abstract: Provided is an optical modulator including a plurality of unit cells, an active layer including a plurality of refractive index changing areas that are separated from each other, each of the plurality of refractive index changing areas having a refractive index that changes based on an electrical signal applied thereto, a plurality of antenna patterns provided over the active layer, and a mirror layer provided under the active layer opposite to the plurality of antenna patterns.

公开(公告)号：US20210255468A1

公开(公告)日：2021-08-19

申请号：US17089261

申请日：2020-11-04

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Sunil Kim ,  Junghyun Park ,  Duhyun Lee ,  Byunggil Jeong

IPC: G02B27/09 ,  H01L27/146 ,  G01S7/4914 ,  G01S7/481

Abstract: Provided is a beam steering apparatus including a driving pixel unit including a plurality of driving pixels that are respectively configured to supply a voltage or a current, a light modulator including a plurality of pixels corresponding to the plurality of driving pixels, each pixel of the plurality of pixels being configured to modulate incident light, and a wiring layer including a wiring structure configured to electrically connect the plurality of driving pixels to the plurality of pixels, wherein the wiring structure includes a first conductive wire connected to the plurality of driving pixels, a second conductive wire connected to the plurality of pixels, and at least one third conductive wire connected between the first conductive wire and the second conductive wire, and wherein the first conductive wire, the second conductive wire, and the at least one third conductive wire form a step structure.

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：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：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.