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公开(公告)号：US20230213390A1
公开(公告)日：2023-07-06
申请号：US17836568
申请日：2022-06-09
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Jinmyoung KIM , Byonggwon SONG , Yooseong YANG , Duhyun LEE , Byungkyu LEE
CPC classification number: G01J5/20 , G01J5/58 , G01J2005/202
Abstract: A long wavelength infrared sensor includes a first magnetoresistive unit; a second magnetoresistive unit; and a light absorption layer that absorbs light and emits heat, wherein the first magnetoresistive unit includes a first magnetoresistive element and a second magnetoresistive element electrically connected to each other, the second magnetoresistive unit includes a third magnetoresistive element and a fourth magnetoresistive element electrically connected to each other, the first and third magnetoresistive elements each have an antiparallel state of magnetization direction, the second and fourth magnetoresistive elements each have a parallel state of magnetization direction, and the first magnetoresistive element is electrically connected to the third magnetoresistive element by way of the second magnetoresistive element.
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2.发明申请公开(公告)号：US20200333678A1
公开(公告)日：2020-10-22
申请号：US16921056
申请日：2020-07-06
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Duhyun LEE , Changgyun SHIN , Jisoo KYOUNG , Byounglyong CHOI
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.
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公开(公告)号：US20200280174A1
公开(公告)日：2020-09-03
申请号：US16804442
申请日：2020-02-28
Inventor： Duhyun LEE , Muhammad ALAM , Ghazaleh KAFAIE SHIRMANESH , Harry ATWATER , Pin Chieh WU , Ragip PALA
Abstract: A light modulation element according to example embodiments includes a substrate; a first lower DBR layer on the substrate including a first material layer alternately stacked with a second material layer having a different refractive index from the first material layer; a second lower DBR layer on the first lower DBR layer with a surface area less than the first lower DBR layer and including a third material layer alternately stacked with a fourth material layer having a different refractive index from the third material layer; an active layer on the second lower DBR layer, including a semiconductor material having a multi-quantum well structure and having a refractive index that varies according to an applied voltage; and an upper DBR layer on the active layer including a fifth material layer alternately stacked with a sixth material layer having a different refractive index from the fifth material layer.
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公开(公告)号：US20200257958A1
公开(公告)日：2020-08-13
申请号：US16508484
申请日：2019-07-11
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Duhyun LEE , Jaeduck JANG
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.
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公开(公告)号：US20180059507A1
公开(公告)日：2018-03-01
申请号：US15686935
申请日：2017-08-25
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Sunil KIM , Duhyun LEE , Changbum LEE , Byounglyong CHOI
IPC: G02F1/313
CPC classification number: G02F1/3137 , G02F1/2955 , G02F2001/311 , G02F2201/06
Abstract: A laser beam steering device and a system including the same are provided. The laser beam steering device includes a waveguide through which a laser beam passes, and a cladding layer disposed on the waveguide. The cladding layer has a refractive index which changes according to an electrical signal applied thereto and thus a phase of a laser beam passing through the waveguide may be changed.
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Patent Agency Ranking
公开(公告)号：US20170153527A1
公开(公告)日：2017-06-01
申请号：US15355710
申请日：2016-11-18
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Sunil KIM , Changgyun SHIN , Jungwoo KIM , Duhyun LEE
IPC: G02F1/29
CPC classification number: G02F1/29 , B82Y20/00 , G02F1/133602 , G02F1/292 , G02F2001/133614 , G02F2201/34 , G02F2202/10 , G02F2202/36 , G02F2203/24 , Y10S977/932
Abstract: Provided are a beam steering device and a system including the same. The beam steering device includes a conversion layer having a refractive index which is variable via electrical control and a plurality of nanoantenna pattern layers stacked on the conversion layer. The refractive index of the conversion layer is electrically changed by a driver.
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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.
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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.
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公开(公告)号：US20180196138A1
公开(公告)日：2018-07-12
申请号：US15867015
申请日：2018-01-10
Inventor： Duhyun LEE , Muhammad ALAM , Harry ATWATER , Ragip PALA , Byunghoon NA , Seunghoon HAN
CPC classification number: G01S17/02 , G01S7/481 , G01S7/4817 , G02F1/01716 , G02F1/21 , G02F1/292 , G02F2001/0151 , G02F2001/213 , G02F2202/30
Abstract: Provided are an optical modulating device and a system including the optical modulating device. The optical modulating device includes a substrate, and a phase modulator formed on the substrate and including a Fabry-Perot cavity. The Fabry-Perot cavity of the phase modulator includes a first reflective layer, a second reflective layer, and a tunable core formed between the first reflective layer and the second reflective layer, wherein the tunable core is formed of a semiconductor material and is configured to modulate a phase of light corresponding to modulation of a refractive index of the tunable core according to electrical control.
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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
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.
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