公开(公告)号：US20240419050A1

公开(公告)日：2024-12-19

申请号：US18523384

申请日：2023-11-29

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Junghyun PARK ,  Sunil KIM ,  Minkyung LEE ,  Byunggil JEONG

IPC: G02F1/29 ,  H01S5/042 ,  H01S5/125

Abstract: A phase modulation device includes an upper reflective layer onto which incident light is incident; a lower reflective layer provided on a lower portion of the upper reflective layer; an active layer provided between the upper reflective layer and the lower reflective layer; a first electrode connected to an upper surface of the active layer; and a second electrode connected to a lower surface of the active layer, wherein the lower reflective layer may include a first distributed Bragg reflector (DBR) layer including at least one first low refractive material layer and at least one first high refractive material layer that are alternately stacked, and the at least one first low refractive material layer has a first refractive index and the at least one first high refractive material layer has a second refractive index that is greater than the first refractive index.

公开(公告)号：US20240310693A1

公开(公告)日：2024-09-19

申请号：US18674407

申请日：2024-05-24

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：US20240142850A1

公开(公告)日：2024-05-02

申请号：US18384710

申请日：2023-10-27

Applicant: SAMSUNG ELECTRONICS CO., LTD

Inventor： Sunil KIM ,  Byunggil JEONG ,  Junghyun PARK ,  Minkyung LEE

IPC: G02F1/29

CPC classification number: G02F1/292

Abstract: Provided is a light modulating apparatus including a plurality of pixels, each pixel of the plurality of pixels being configured to steer incident light and operate as an on-pixel or an off-pixel, a spatial light modulator configured to modulate the incident light and emit the light at a predetermined steering angle, and a processor configured to apply different voltages respectively corresponding to steering angles of the on-pixel.

公开(公告)号：US20230117216A1

公开(公告)日：2023-04-20

申请号：US17987282

申请日：2022-11-15

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Minkyung LEE ,  Sunil KIM ,  Junghyun PARK ,  Byunggil JEONG

IPC: G02B26/10 ,  G02B26/08

Abstract: Provided are spatial light modulators, methods of driving and manufacturing the same, and apparatuses including the spatial light modulators. The spatial light modulator according to an example embodiment includes a substrate, a distributed Bragg reflector (DBR) layer stacked on one surface of the substrate, a cavity layer on the DBR layer, a pixel layer on the cavity layer and including a plurality of pixels, and a heat blocking member between the plurality of pixels to block heat transfer between the plurality of pixels, wherein a material layer having a lower thermal conductivity than the lowermost layer of the DBR layer is provided between the substrate and the DBR layer, and each of the plurality of pixels includes a plurality of active meta-patterns. In one example, the material layer, the DBR layer, and the cavity layer are each divided corresponding to the plurality of pixels, and the heat blocking member is provided between the divided material layers, between the divided DBR layers, and between the divided cavity layers.

公开(公告)号：US20210208256A1

公开(公告)日：2021-07-08

申请号：US16927476

申请日：2020-07-13

Applicant: SAMSUNG ELECTRONICS CO., LTD.

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

IPC: G01S7/481 ,  G01S17/931 ,  G02F1/29

Abstract: A spatial light modulator and a beam steering apparatus including the same are provided. The spatial light modulator may include a distributed Bragg reflector provided on a substrate, a cavity provided on the distributed Bragg reflector, a grating reflector provided on the cavity, and a heater provided on the grating reflector.

公开(公告)号：US20210132464A1

公开(公告)日：2021-05-06

申请号：US17144445

申请日：2021-01-08

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Byunggil JEONG

IPC: G02F1/29 ,  G01S7/481 ,  G01S17/42

Abstract: Provided are a beam steering apparatus, a method of driving the beam steering apparatus, and a light detection and ranging (LiDAR) system including the beam steering apparatus. The beam steering apparatus includes: a phase modulation device configured to modulate a phase of incident light and emit at least first emitted light and second emitted light; and a beam reflection device configured to reflect, to an object, at least one from among the first emitted light and the second emitted light. The phase modulation device includes a plurality of channels configured to independently modulate the phase of the incident light, and a binary phase profile is formed when one of first and second phase values φ1 and φ2 is applied to each of the plurality of channels.

公开(公告)号：US20200081316A1

公开(公告)日：2020-03-12

申请号：US16262362

申请日：2019-01-30

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Byunggil JEONG ,  Sunil Kim

IPC: G02F1/29

Abstract: Provided is a driving method for a beam steering device having a metasurface optical phased array, the beam steering device includes a nano-antenna, a conductor, and an active layer arranged therebetween. The driving method includes comparing a first voltage to be applied to a first electrode of one of the nano-antenna and the conductor, with a second voltage applied immediately before the first voltage, and applying a correction voltage the first electrode of the other of the nano-antenna and the conductor and then applying the first voltage. The correction voltage is applied to the first electrode and has an electrical polarity different from an electrical polarity of the second voltage.

公开(公告)号：US20190011535A1

公开(公告)日：2019-01-10

申请号：US15882488

申请日：2018-01-29

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Junghyun PARK ,  Byunggil JEONG ,  Byounglyong CHOI

IPC: G01S7/481 ,  G02F1/29 ,  G02B26/12 ,  G01S17/08

Abstract: A beam scanning apparatus capable of adjusting a refraction angle of transmitted light and scanning a beam to a desired location is provided. In addition, an optical apparatus capable of sensing light reflected from an external object and extracting information about the external object is provided. The beam scanning apparatus includes a rotary meta lens having a plurality of meta areas in which a plurality of fine phase shift elements are arranged, and a rotation drive device that rotates the rotary meta lens. The plurality of meta areas are configured to direct transmitted light to different locations in a scanning area.

公开(公告)号：US20190004312A1

公开(公告)日：2019-01-03

申请号：US15818279

申请日：2017-11-20

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Byunggil JEONG ,  Byounglyong CHOI

IPC: G02B26/10

CPC classification number: G02B26/101 ,  G01S7/4817 ,  G01S7/499 ,  G01S17/42 ,  G02B26/06 ,  G02B26/0841 ,  G02B26/085 ,  G02B26/0858

Abstract: Provided are a hybrid two-dimensional (2D) scanner system and a method of operating the same. The hybrid 2D scanner system includes a meta-surface based one-dimensional (1D) scanner and a mechanical scanner connected to the meta-surface based 1D scanner. In this scanner system, the mechanical scanner is operated as a 1D scanner. For this purpose, one of two rotational axes included in the mechanical scanner is maintained in a fixed position during a scanning operation. The meta-surface based 1D scanner may include a base substrate, a meta-surface that is arranged on the base substrate and includes a channel array, and a power supply configured to apply a voltage to the channel array.

公开(公告)号：US20180059223A1

公开(公告)日：2018-03-01

申请号：US15483135

申请日：2017-04-10

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Byunggil JEONG ,  Jaeduck JANG ,  Duhyun LEE

IPC: G01S7/481 ,  G02F1/29 ,  G02B27/14 ,  G02B27/28

CPC classification number: G01S7/4817 ,  G01S7/4814 ,  G01S7/4815 ,  G01S17/42 ,  G02B27/141 ,  G02B27/283 ,  G02F1/292 ,  G02F2001/291 ,  G02F2203/50

Abstract: An optical scanning device includes a light source configured to emit first light in a first wavelength range and second light in a second wavelength range, a beam divider configured to allow the first light to travel in a first direction, and receive the second light, and allow the second light to travel in a second direction different from the first direction, a first optical modulator configured to receive the first light, and modulate a phase of the first light received by the first optical modulator to change a travelling direction of the first light received by the first optical modulator, and a second optical modulator configured to receive the second light, and modulate a phase of the second light received by the second optical modulator to change a travelling direction of the second light received by the second optical modulator.