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.

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.