公开(公告)号：US20210341233A1

公开(公告)日：2021-11-04

申请号：US17231619

申请日：2021-04-15

Applicant: KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Jonghwa SHIN ,  Suwan Jeon

IPC: F28F13/18 ,  F28F23/00

Abstract: The present disclosure relates to a radiative cooling device which is sensitive to the ambient temperature and in which the emissivity changes depending on the infrared wavelength range and emission angle, and a method of cooling an object using the radiative cooling device.

公开(公告)号：US20220082822A1

公开(公告)日：2022-03-17

申请号：US17519347

申请日：2021-11-04

Applicant: SAMSUNG ELECTRONICS CO., LTD. ,  KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Jeongyub LEE ,  Reehyang KIM ,  Jonghwa SHIN ,  Kiyeon YANG ,  Yongsung KIM ,  Jaekwan KIM ,  Changseung LEE ,  Narae HAN

IPC: G02B27/00 ,  G02B5/08 ,  G02B3/02 ,  G02B1/00

Abstract: Provided in a phase shifting device including a plurality of metal layers and a plurality of first dielectric layers, a metal layer of the plurality of metal layers and a first dielectric layer of the plurality of first dielectric layers being alternately stacked in a first direction, and a second dielectric layer disposed on a side surface of the stacked structure in a second direction, wherein the first dielectric layer includes a first material having a first dielectric constant and the second dielectric layer includes a second material having a second dielectric constant, and wherein the second dielectric constant is greater than the first dielectric constant.

公开(公告)号：US20220119696A1

公开(公告)日：2022-04-21

申请号：US17560364

申请日：2021-12-23

Applicant: KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Jonghwa SHIN ,  Suwan JEON

IPC: C09K5/14

Abstract: The present disclosure relates to a colored radiative cooling device that includes a selective heat transfer layer between a spectral selective filter and a thermal emitter, and a method of cooling an object by using the colored radiative cooling device.

公开(公告)号：US20190207315A1

公开(公告)日：2019-07-04

申请号：US16047321

申请日：2018-07-27

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE ,  Korea Advanced Institute of Science and Technology ,  Center for Advanced Meta-Materials

Inventor： Won Kyu CHOI ,  Jonghwa SHIN ,  Hak-Ju LEE ,  MI HYUN KIM ,  Taeyong CHANG ,  Sunghoon HONG

IPC: H01Q9/04 ,  H01Q9/16 ,  H03H7/38 ,  H01Q1/38

CPC classification number: H01Q9/0442 ,  H01Q1/38 ,  H01Q9/16 ,  H03H7/38

Abstract: An antenna and a method of manufacturing the antenna. The antenna includes an antenna structure, and a metamaterial that has a high dielectric constant and that includes metal patterns arranged at regular intervals.

公开(公告)号：US20230384152A1

公开(公告)日：2023-11-30

申请号：US18232506

申请日：2023-08-10

Applicant: KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Jonghwa SHIN ,  Taeyong CHANG ,  Joonkyo JUNG

IPC: G01J1/04 ,  G02B21/00 ,  G01J4/00 ,  G01J9/02

CPC classification number: G01J1/0407 ,  G02B21/0092 ,  G01J4/00 ,  G01J9/02

Abstract: An optical measurement device according to an aspect of the present disclosure includes a universal metasurface on which light is incident, a polarization sensor configured to measure a polarization state of light passing through the universal metasurface, and a controller configured to collect a quantitative differential interference contrast (QDIC) image for the x polarization of incident light that is collected by the polarization sensor, a QDIC image for y polarization, and a quantitative relative phase (QRP) image representing a relative phase difference between the x polarization and y polarization and configured to calculate intensity, a phase or polarization information of the incident light.

公开(公告)号：US20220196351A1

公开(公告)日：2022-06-23

申请号：US17560394

申请日：2021-12-23

Applicant: KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Jonghwa SHIN ,  Kyungsun YUN ,  Suwan JEON

IPC: F28F27/00 ,  F28F13/18

Abstract: The present disclosure relates to a radiative cooling device based on incidence and emission angle control using an angle controller, and a method of cooling an object using the radiative cooling device.

公开(公告)号：US20200264355A1

公开(公告)日：2020-08-20

申请号：US16062674

申请日：2016-12-15

Applicant: KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY ,  KOREA UNIVERSITY RESEARCH AND BUSINESS FOUNDATION

Inventor： Jonghwa SHIN ,  Heon LEE ,  Hyo Wook KIM ,  Hak Jong CHOI

IPC: G02B5/28 ,  G02B5/20

Abstract: A color filter according to an exemplary embodiment of the present invention includes a substrate; and a plurality of laminated members disposed with a predetermined period on the substrate, wherein each laminated member includes: a first metal layer; a dielectric layer positioned on the first metal layer; and a second metal layer positioned on the dielectric material, and the laminated member simultaneously excites electrical resonance and magnetic resonance in a visible ray region and transmits light that does not resonate, or a first single layer metal member and a plurality of second single layer metal members having different diameter from each other are included, and the single layer metal member excites the electric resonance to block light in the visible ray and transmits light for the wavelength in which the magnetic resonance and the electrical resonance of the single layer metal member are simultaneously excited.