公开(公告)号：US20240319407A1

公开(公告)日：2024-09-26

申请号：US18404124

申请日：2024-01-04

Applicant: POSTECH Research and Business Development Foundation

Inventor： Junsuk RHO ,  Joohoon Kim ,  Junhwa Seong

IPC: G02B1/00

CPC classification number: G02B1/002

Abstract: A meta lens includes a substrate, a plurality of nanostructures provided on the substrate, and a high refractive index atomic layer formed along surfaces of the plurality of nanostructures and including a material having a refractive index greater than a refractive index of the plurality of nanostructures.

公开(公告)号：US20210396659A1

公开(公告)日：2021-12-23

申请号：US17181845

申请日：2021-02-22

Applicant: POSTECH Research and Business Development Foundation

Inventor： Jaehyuck JANG ,  Junsuk RHO

IPC: G01N21/3554 ,  G01B11/06

Abstract: Disclosed are a sensor including a first metal layer and a second metal layer facing each other, and a volume changeable layer disposed between the first metal layer and the second metal layer and capable of absorbing a material to change the thickness thereof, wherein at least one of the first metal layer and the second metal layer is a semi-transmissive layer and the sensor indicates a color change by changing a resonance wavelength of light transmitted through the semi-transmissive layer according to a change in thickness of the volume changeable layer, and a sensor device, an electronic device, a smart window, and an IoT system including the same.

公开(公告)号：US20240125902A1

公开(公告)日：2024-04-18

申请号：US18219448

申请日：2023-07-07

Applicant: SAMSUNG ELECTRONICS CO., LTD. ,  POSTECH Research and Business Development Foundation

Inventor： Sunil KIM ,  Junsuk RHO ,  Younghwan YANG ,  Junghyun PARK

IPC: G01S7/481 ,  G01S17/08 ,  G02F1/21

CPC classification number: G01S7/4814 ,  G01S17/08 ,  G02F1/21 ,  G01S17/931

Abstract: Provided is a spatial light modulator configured to modulate light, the spatial light modulator including a first reflective layer, a resonance layer on the first reflective layer, and a second reflective layer on the resonance layer, the second reflective layer including a plurality of grating structures space apart from each other, wherein the plurality of grating structures include silicon (Si) having an extinction coefficient k that is less than or equal to 1e-5 with respect to light in the predetermined wavelength band.

公开(公告)号：US20240118455A1

公开(公告)日：2024-04-11

申请号：US18471825

申请日：2023-09-21

Applicant: POSTECH Research and Business Development Foundation

Inventor： Junsuk RHO ,  Gyeongtae KIM ,  Yeseul KIM ,  Jooyeong YUN ,  Inki KIM

IPC: G02B1/00 ,  G02B27/01 ,  G06T7/521 ,  G06T7/593

CPC classification number: G02B1/002 ,  G02B27/0172 ,  G06T7/521 ,  G06T7/593 ,  G06T2207/10028

Abstract: A meta optical device for forming structured light by modulating incident light having a preset wavelength includes a plurality of supercells each including a plurality of nanostructures having a shape dimension less than the preset wavelength, and shapes and arrangements of the plurality of nanostructures are designed to form the structured light as a point pattern having a viewing angle greater than 160° in horizontal and vertical directions.

公开(公告)号：US20230359080A1

公开(公告)日：2023-11-09

申请号：US18304726

申请日：2023-04-21

Applicant: POSTECH RESEARCH AND BUSINESS DEVELOPMENT FOUNDATION

Inventor： Junsuk RHO ,  Young-Ki Kim ,  Joohoon Kim ,  Won-Sik Kim ,  Trevon Badloe

IPC: G02F1/1335 ,  G02F1/1337 ,  G02F1/1343

CPC classification number: G02F1/133514 ,  G02F1/133528 ,  G02F1/133707 ,  G02F1/134363

Abstract: Provided is a color filter. The color filter includes a nano structure layer including a base substrate and a plurality of nano structures which are disposed to be spaced apart from each other on the base substrate and each of which has an elliptical shape on a plane, and a polarization control layer disposed on the nano structure layer and including liquid crystal molecules of which an alignment direction on a plane parallel to the base substrate is controlled by an electric field to realize excellent color reproducibility.

公开(公告)号：US20230280694A1

公开(公告)日：2023-09-07

申请号：US18116720

申请日：2023-03-02

Applicant: POSTECH Research and Business Development Foundation

Inventor： Junsuk RHO ,  Inki KIM ,  Jaehyuck JANG ,  Gyeongtae KIM

IPC: G03H1/22 ,  H04L9/40

CPC classification number: G03H1/2294 ,  G03H1/2205 ,  H04L63/083 ,  G03H2223/22 ,  G03H2270/30 ,  G03H2225/36

Abstract: An apparatus for creating a holographic image, comprising: a first polarizing plate; a metasurface configured to create a first holographic image by modulating a polarization state of a light beam passing through the first polarizing plate; a controller configured to supply voltage to a voltage-varied liquid crystal (LC); and the voltage-varied LC configured to create a second holographic image by modulating a polarization state of the first holographic image according to the voltage and operating method thereof are provided.