公开(公告)号：US20200182701A1

公开(公告)日：2020-06-11

申请号：US16552940

申请日：2019-08-27

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Jeho NAM ,  Min-Sik PARK ,  Seung Hyup SHIN

IPC: G01J9/02

Abstract: A method and an apparatus for measuring a coherence of a light source of a holographic display through steps of: photographing an interference pattern generated by light output from the light source; obtaining an interference pattern feature information with respect to the interference pattern from an interference pattern image of the interference pattern; and measuring the coherence of the light source based on the interference pattern feature information, are provided.

公开(公告)号：US20220229953A1

公开(公告)日：2022-07-21

申请号：US17543480

申请日：2021-12-06

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Jeho NAM ,  Min-Sik PARK ,  Seung Hyup SHIN

IPC: G06F30/20

Abstract: A holographic display simulation device and a holographic display simulation method are provided. A holographic display simulation device includes a processor; and a memory including one or more instructions, wherein the one or more instructions are executed by the processor, and a holographic display is simulated by using at least one of a light source part model, a spatial light modulator model, and a display optical system model that respectively model a light source part, a spatial light modulator, and a display optical system of the holographic display.

公开(公告)号：US20180284694A1

公开(公告)日：2018-10-04

申请号：US15938834

申请日：2018-03-28

Applicant: Electronics and Telecommunications Research Institute

Inventor： Min-Sik PARK

IPC: G03H1/16 ,  G03H1/08 ,  G03H1/22

Abstract: An apparatus for capturing a Fourier hologram splits a coherent light source into an object beam and a reference beam, sets a distance of a virtual focal plane of a subject, generates spherical wave field data propagated from a point source of the virtual focal plane to a central coordinate plane of a spatial light modulator, generates a spherical wave field on a space from the spherical wave field data and the reference beam by the spatial light modulator, synthesizes an object wave field generated by reflecting the object beam by the subject and the spherical wave field with each other so that an interference pattern is formed on the image sensor face, captures the interference pattern formed on the image sensor face, and then performs Fourier transformation to calculate an object wave field formed on the focal plane of the subject.