公开(公告)号：US09869971B2

公开(公告)日：2018-01-16

申请号：US14987287

申请日：2016-01-04

Applicant: Electronics and Telecommunications Research Institute

Inventor： Eun Young Chang ,  Soo Hyun Lee ,  Jin Woong Kim ,  Tae One Kim ,  Kyung Ae Moon ,  Joong Ki Park

IPC: G03H1/22 ,  G03H1/08 ,  G03H1/02

CPC classification number: G03H1/2294 ,  G03H1/0808 ,  G03H2001/0224 ,  G03H2001/2236 ,  G03H2001/2239 ,  G03H2210/30 ,  G03H2225/60

Abstract: Provided is a hologram generation method including receiving three-dimensional (3D) data information, determining a first projection position onto which the 3D data information is projected on a hologram plane corresponding to a first spatial light modulator (SLM), and a second projection position onto which the 3D data information is projected on a hologram plane corresponding to a second SLM, generating a first Fresnel zone plate (FZP) pattern corresponding to the first projection position, and determining the first FZP pattern to be an FZP pattern corresponding to the second projection position.

公开(公告)号：US11003136B2

公开(公告)日：2021-05-11

申请号：US16195492

申请日：2018-11-19

Applicant: Electronics and Telecommunications Research Institute

Inventor： Tae One Kim

IPC: G03H1/08 ,  G03H1/04 ,  G03H1/02

Abstract: In the present invention, by providing an apparatus for generating a hologram based on human visual system modeling, including a lens configured to focus light emitted from a three-dimensional (3D) object, a sensor configured to detect the light, an object information obtaining unit configured to obtain object information of the 3D object based on information of the lens and a confusion circle size threshold value corresponding to information of the sensor, and a hologram image generating unit configured to generate a hologram image for the 3D object based on the object information, it is possible to provide a method of generating a hologram based on a human visual system capable of generating image information of a three-dimensional object faster and capable of generating a higher-quality hologram image.

公开(公告)号：US20140362676A1

公开(公告)日：2014-12-11

申请号：US14366171

申请日：2012-12-27

Applicant: Electronics and Telecommunications Research Institute

Inventor： Bong Ho Lee ,  Jae Han Kim ,  Gwang Soon Lee ,  Tae One Kim ,  Won Sik Cheong ,  Nam Ho Hur

IPC: G11B7/095 ,  G02B27/28 ,  G11B7/13 ,  G01B11/14

CPC classification number: G11B7/0956 ,  G02B27/283 ,  G11B7/083 ,  G11B7/13

Abstract: The present invention relates to an optical information processing apparatus and to a method for controlling same. Provided is an optical information processing apparatus and a method for controlling same, the optical information processing apparatus comprising: a light source for irradiating light; an optical modulator for modulating the light irradiated from the light source; an optical system for collecting the light modulated by the optical modulator and enabling the modulated light to be incident to an optical medium; a stage on which the optical medium is placed; an optical detection unit for detecting the pattern of the light reflected from the optical medium; and a control unit for analyzing the pattern of the light detected by the optical detection unit so as to control the optical system and the location of the stage.

Abstract translation: 光信息处理装置及其控制方法技术领域本发明涉及光信息处理装置及其控制方法。 提供一种光信息处理装置及其控制方法，该光信息处理装置包括：用于照射光的光源; 光调制器，用于调制从光源照射的光; 光学系统，用于收集由光学调制器调制的光，并使得调制的光入射到光学介质; 放置光学介质的阶段; 光学检测单元，用于检测从光学介质反射的光的图案; 以及控制单元，用于分析由光学检测单元检测到的光的图案，以便控制光学系统和平台的位置。

公开(公告)号：US10585393B2

公开(公告)日：2020-03-10

申请号：US15236956

申请日：2016-08-15

Applicant: Electronics and Telecommunications Research Institute

Inventor： Tae One Kim ,  Hyun Eui Kim ,  Hyon Gon Choo ,  Jin Woong Kim ,  Jin Soo Choi

IPC: G03H1/12 ,  G03H1/04 ,  G03H1/22 ,  G02B27/22 ,  G03H1/08

Abstract: Provided is a holographic display apparatus including a motor configured to synchronize with a hologram transmitted based on user's point of view and to rotate; a spatial light modulator configured to load hologram data generated based on the user's point of view in a fixed position state and to perform a light modulation; a mirror configured to provide the hologram which is light-modulated by the spatial light modulator according to the user's point of view during the rotation by rotation operation of the motor; and a hologram correction unit configured to compensate a rotation error between the fixed spatial light modulator and the rotating mirror and to provide a corrected hologram data to the spatial light modulator.

公开(公告)号：US10101707B2

公开(公告)日：2018-10-16

申请号：US15004403

申请日：2016-01-22

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Tae One Kim ,  Hyun Eui Kim ,  Jae Han Kim ,  Jin Woong Kim ,  Kyung Ae Moon ,  Jin Soo Choi

IPC: G03H1/08 ,  G06T5/00 ,  G03H1/04 ,  G03H1/22

Abstract: Provided is a method and an apparatus for correcting a distortion of a three-dimensional (3D) hologram, in which the method is performed by the apparatus and includes generating a sliced two-dimensional (2D) section of a hologram by slicing the hologram while performing translation in an optical axis direction, obtaining a sharp sliced image of the hologram from a sequence of images of generated sliced 2D sections using a focusing function of a camera, and analyzing a distortion of the obtained sliced image, and using such a method and apparatus may enable correction of a distortion of a 3D hologram independently from a display structure.