公开(公告)号：US20210149208A1

公开(公告)日：2021-05-20

申请号：US17090999

申请日：2020-11-06

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Andrey N. PUTILIN ,  Aleksander V. MOROZOV ,  Vladislav V. DRUZHIN ,  Sergey E. DUBYNIN ,  Kseniia I. LVOVA ,  Polina I. MALININA ,  Sergey S. KOPENKIN ,  Yurii P. BORODIN ,  Anastasiia S. PEREVOZNIKOVA ,  Bongsu SHIN ,  Sunil KIM

IPC: G02B27/01

Abstract: Provided is a device configured to enlarge an exit pupil area of a visual optical apparatus, the device including a diffraction grating configured to output a plurality of diffracted light beams of a plurality of diffraction orders by diffracting an incident light beam, and a waveguide provided on the diffraction grating and configured to form an exit pupil based on a first diffracted light beam among the plurality of diffracted light beams output from the diffraction grating and to form exit pupil orders based on a second diffracted light beam among the plurality of diffracted light beams output from the diffraction grating.

公开(公告)号：US20210055626A1

公开(公告)日：2021-02-25

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

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：US20200183148A1

公开(公告)日：2020-06-11

申请号：US16416972

申请日：2019-05-20

Applicant: SAMSUNG ELECTRONICS CO., LTD.

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

IPC: G02B26/06 ,  G02B26/10 ,  G01S7/481

Abstract: Provided are a beam scanning device and a system including the beam scanning device. The beam scanning device includes: a spatial light modulator configured to modulate a phase of a light for a corresponding pixel of a plurality of pixels; and a phase mask including a support plate arranged in an output direction of the light that is output from the spatial light modulator and a plurality of nanostructures arranged on the support plate differently for each of the plurality of pixels to control the phase of the light.

公开(公告)号：US20200006923A1

公开(公告)日：2020-01-02

申请号：US16159173

申请日：2018-10-12

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Sunil KIM ,  Junghyun PARK

IPC: H01S5/40 ,  H01S3/00 ,  H01S5/026 ,  G02F1/29

Abstract: A beam steering device is provided and includes: a first layer including a plurality of reflection regions; a second layer on the first layer and including a plurality of refractive-index-variable regions, each having a refractive index that is controlled by an applied voltage; an antenna layer on the second layer and including a plurality of nano-structures; and a driving circuit layer on a lower side of the first layer and comprising a plurality of circuit units, each respectively configured to control a voltage applied to one of the refractive-index-variable regions. The antenna layer is divided into a first region configured to control a travelling direction of incident light and a second region that is not configured to control the travelling direction of the incident light.

公开(公告)号：US20190064420A1

公开(公告)日：2019-02-28

申请号：US15894370

申请日：2018-02-12

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Sunghoon LEE ,  Hoon SONG ,  Jungkwuen AN ,  Sunil KIM ,  Chilsung CHOI ,  Young KIM ,  Kanghee WON ,  Hongseok LEE

IPC: F21V8/00 ,  G02B27/22 ,  G03H1/22

Abstract: A backlight unit including an input coupler, a holographic display apparatus including the backlight unit, and a method of manufacturing the input coupler are provided. The backlight unit includes the input coupler configured to cause light incident on a light incident surface of a light guide plate to travel into the light guide plate, the input coupler has a binary grating structure in which a plurality of barriers are arranged parallel to one another at a constant grating period, and the plurality of barriers are tilted from the light incident on the light incident surface.

公开(公告)号：US20190049739A1

公开(公告)日：2019-02-14

申请号：US15946282

申请日：2018-04-05

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Chilsung CHOI ,  Hoon SONG ,  Jungkwuen AN ,  Sunil KIM ,  Sunghoon LEE ,  Hongseok LEE

IPC: G02B27/22 ,  F21V8/00 ,  G03H1/22

Abstract: Provided are a light guide plate, a backlight unit, and a holographic display apparatus including the backlight unit. The backlight unit includes a light source and a light guide plate including two or more layers configured to guide light from the light source, wherein the two or more layers are configured to control a ratio of light transmitted therethrough to light reflected thereby.

公开(公告)号：US20180136539A1

公开(公告)日：2018-05-17

申请号：US15691327

申请日：2017-08-30

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Sunil KIM ,  Byounglyong CHOI

IPC: G02F1/295 ,  G01S7/481 ,  G01S17/06

CPC classification number: G02F1/295 ,  G01S7/4814 ,  G01S17/06 ,  G01S17/89 ,  G02F2203/24

Abstract: A beam steering device includes a waveguide configured to transmit a beam therethrough; a cladding layer provided on the waveguide and including a material having a refractive index that varies according to a voltage applied thereto; and an electrode layer including at least two electrodes configured to independently voltages to at least two portions of the cladding layer.

公开(公告)号：US20180059444A1

公开(公告)日：2018-03-01

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: G02F1/01 ,  G01S17/06

CPC classification number: G02F1/0126 ,  G01S17/06 ,  G02F1/0121 ,  G02F1/292 ,  G02F2203/50

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：US20170248830A1

公开(公告)日：2017-08-31

申请号：US15405853

申请日：2017-01-13

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Jungwoo KIM ,  Changgyun SHIN ,  Sunil KIM

IPC: G02F1/295

CPC classification number: G02F1/295 ,  G02F2001/291 ,  G02F2201/121 ,  G02F2203/24

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.

公开(公告)号：US20170176651A1

公开(公告)日：2017-06-22

申请号：US15194739

申请日：2016-06-28

Applicant: SAMSUNG ELECTRONICS CO., LTD.

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

IPC: G02B5/00 ,  G02F1/29 ,  G02F1/19

CPC classification number: G02B5/008 ,  G02F1/19 ,  G02F1/292 ,  G02F1/2955 ,  G02F2202/30 ,  G02F2203/12

Abstract: A light modulation device includes a dielectric antenna and a refractive-index-variable layer which faces the dielectric antenna and comprises a material having a refractive index that changes according to a signal. A light may be modulated, since resonance characteristics of the dielectric antenna are controlled according to a refractive-index change of the refractive-index-variable layer.