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公开(公告)号：US20240192515A1
公开(公告)日：2024-06-13
申请号：US18537418
申请日：2023-12-12
Inventor： Hyun Eui KIM
IPC: G02B27/28
CPC classification number: G02B27/283
Abstract: An optical system for hologram displays is disclosed. According to an embodiment of a present disclosure, the optical system comprising a polarizing beam splitter for reflecting a light wave when the light wave is horizontally polarized or transmitting a light wave when the light wave is vertically polarized, a second quarter wave plate, a half mirror, and a first quarter wave plate, sequentially arranged in a first direction from the polarizing beam splitter, a third quarter wave plate and a first mirror, sequentially arranged in a second direction from the polarizing beam splitter, a fourth quarter wave plate and a second mirror, sequentially arranged in a third direction from the polarizing beam splitter, which is a direction opposite to the second direction and a reflective polarizer arranged in a fourth direction from the polarizing beam splitter.
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公开(公告)号：US20170060088A1
公开(公告)日：2017-03-02
申请号：US15236956
申请日：2016-08-15
Inventor： Tae One KIM , Hyun Eui KIM , Hyon Gon CHOO , Jin Woong KIM , Jin Soo CHOI
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.
Abstract translation: 本发明提供一种全息显示装置，其包括：电动机，被配置为与基于用户的观点发送的全息图同步并旋转; 空间光调制器，被配置为将处于固定位置状态的基于用户的视点生成的全息图数据加载并执行光调制; 配置为根据用户通过电动机的旋转操作旋转期间的观点来提供由空间光调制器进行光调制的全息图的反射镜; 以及全息图校正单元，被配置为补偿固定空间光调制器和旋转镜之间的旋转误差，并向空间光调制器提供校正全息图数据。
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公开(公告)号：US20170176933A1
公开(公告)日：2017-06-22
申请号：US15381962
申请日：2016-12-16
Inventor： Hyun Eui KIM , Tae One KIM
IPC: G03H1/22 , G02F1/1335 , G02B26/08
CPC classification number: G03H1/2286 , G02B26/0808 , G02B26/0833 , G02F1/1313 , G03H1/2294 , G03H2001/2239 , G03H2222/34 , G03H2222/35 , G03H2223/19 , G03H2223/23 , G03H2223/24 , G03H2225/24
Abstract: A holographic display apparatus and method using a directional backlight unit (BLU) are provided. The holographic display apparatus may include a BLU configured to control light to be incident on a spatial light modulator (SLM) using a plurality of mirrors, and the SLM configured to modulate the incident light based on image information and to display a holographic image.
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4.发明申请公开(公告)号：US20160216690A1
公开(公告)日：2016-07-28
申请号：US15004403
申请日：2016-01-22
Inventor： Tae One KIM , Hyun Eui KIM , Jae Han KIM , Jin Woong KIM , Kyung Ae MOON , Jin Soo CHOI
CPC classification number: G03H1/0808 , G03H2001/0491 , G03H2001/0825 , G03H2001/2247 , G03H2210/30 , G03H2210/33 , G03H2210/454 , G06T5/006 , G06T2200/04 , G06T2207/10028
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.
Abstract translation: 提供了一种用于校正三维（3D）全息图的失真的方法和装置，其中该方法由该装置执行并且包括通过切片全息图来生成全息图的切片二维（2D）部分，同时 在光轴方向上进行平移，使用相机的聚焦功能从生成的切片2D部分的图像序列获得全息图的锐利切片图像，并且分析所获得的切片图像的失真，并且使用这样的方法和 装置可以独立于显示结构使得校正3D全息图的失真。
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5.发明申请APPARATUS AND METHOD FOR DISPLAYING PSEUDO-HOLOGRAM IMAGE BASED ON PUPIL TRACKING 审中-公开基于PUPIL跟踪显示PSOUDO-HOLOGRAM图像的装置和方法公开(公告)号：US20150138613A1
公开(公告)日：2015-05-21
申请号：US14533608
申请日：2014-11-05
Inventor： Hyon Gon CHOO , Kyung Ae MOON , Min Sik PARK , Hyun Eui KIM , Jin Woong KIM
CPC classification number: G02B27/0093 , G02B27/2271
Abstract: Provided are an apparatus and a method for displaying a hologram image based on pupil tracking, wherein a hologram image display apparatus includes a location determiner to determine a location of a user using a captured image of the user and a hologram information reconstructor to reconstruct first hologram information as second hologram information optimized for the location of the user to reproduce the hologram image.
Abstract translation: 提供了一种基于瞳孔跟踪显示全息图像的装置和方法，其中全息图像显示装置包括位置确定器，用于使用用户的拍摄图像确定用户的位置，以及全息图信息重建器来重建第一全息图 信息作为用于再现全息图像的用户的位置而被优化的第二全息图信息。
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Patent Agency Ranking
公开(公告)号：US20180292785A9
公开(公告)日：2018-10-11
申请号：US14533608
申请日：2014-11-05
Inventor： Hyon Gon CHOO , Kyung Ae MOON , Min Sik PARK , Hyun Eui KIM , Jin Woong KIM
Abstract: Provided are an apparatus and a method for displaying a hologram image based on pupil tracking, wherein a hologram image display apparatus includes a location determiner to determine a location of a user using a captured image of the user and a hologram information reconstructor to reconstruct first hologram information as second hologram information optimized for the location of the user to reproduce the hologram image.
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公开(公告)号：US20160223987A1
公开(公告)日：2016-08-04
申请号：US15007389
申请日：2016-01-27
Inventor： Min Sik PARK , Hyun Eui KIM
CPC classification number: G03H1/0486 , G03H1/0808 , G03H1/2294 , G03H2001/0825 , G03H2226/05 , G06F3/013
Abstract: A method and apparatus for correcting a distortion of a holographic display. The method includes tracking a location of a viewing window by tracking a location of a pupil of a user and calculating a central location of the viewing window, generating a wavefront aberration by determining an object point and an image point based on a location of a light source and the central location of the viewing window and using ray tracing, and calculating a complex aberration light field using the generated wavefront aberration. Thus, a quality of a holographically reproduced image in a viewing window-based holographic display may be improved.
Abstract translation: 一种用于校正全息显示器的失真的方法和装置。 该方法包括通过跟踪用户的瞳孔的位置并计算观看窗口的中心位置来跟踪观看窗口的位置，通过基于光的位置确定对象点和图像点来产生波前像差 源和观察窗口的中心位置并使用光线跟踪，并且使用所产生的波前像差计算复像差光场。 因此，可以提高基于观察窗的全息显示中的全息再现图像的质量。
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8.发明申请公开(公告)号：US20160216692A1
公开(公告)日：2016-07-28
申请号：US15003070
申请日：2016-01-21
Inventor： Hyun Eui KIM , Min Sik PARK , Jae Han KIM , Jin Woong KIM , Kyung Ae MOON
CPC classification number: G03H1/2205 , G02B26/105 , G03H1/2294 , G03H1/30 , G03H2001/221 , G03H2001/2239 , G03H2001/2242 , G03H2001/2297 , G03H2223/24 , G03H2225/24 , G03H2225/60 , G03H2227/03
Abstract: Provided is a hologram projection apparatus using an aspheric mirror, the apparatus including a spatial light modulator (SLM), a first mirror, a motor, and a second mirror, wherein the first mirror is configured to reflect modulated light output by the SLM, the motor is configured to rotate the first mirror, the second mirror is configured to reflect the modulated light reflected from the rotated first mirror, and the modulated light reflected from the second mirror, based on a degree of rotation of the first mirror, forms a consecutive viewing window in a horizontal direction.
Abstract translation: 本发明提供一种使用非球面镜的全息图投影装置，该装置包括空间光调制器（SLM），第一反射镜，电动机和第二反射镜，其中第一反射镜被配置为反映由SLM输出的调制光， 电动机构造成旋转第一反射镜，第二反射镜被配置为反射从旋转的第一反射镜反射的调制光，并且基于第一反射镜的旋转度从第二反射镜反射的调制光形成连续的 观察窗口在水平方向。
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9.发明申请公开(公告)号：US20210181677A1
公开(公告)日：2021-06-17
申请号：US17117853
申请日：2020-12-10
Inventor： Hyun Eui KIM
IPC: G03H1/22
Abstract: Disclosed herein are a holographic optical system structure and a holographic display method. In particular, disclosed herein are a holographic optical system and a holographic display method that can be efficiently applied when using a spatial light modulator (SLM). The holographic display apparatus includes a spatial light modulator (SLM) configured to reproduce a hologram, and an optical system configured to perform Fourier transform with respect to the hologram of the SLM using a pair of first and second lenses, the first and second lenses being confocal. A Fourier plane which is a display reference image plane is positioned in the same plane space as the second lens.
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公开(公告)号：US20190204783A1
公开(公告)日：2019-07-04
申请号：US16236141
申请日：2018-12-28
Inventor： Hyun Eui KIM
CPC classification number: G03H1/2294 , G02B5/32 , G03H1/0248 , G03H1/2205 , G03H2001/2207 , G03H2001/221 , G03H2210/30
Abstract: In the present invention, by providing a hologram displaying apparatus including a light source configured to emit input light, a spatial light modulator configured to modulate the input light into diffracted light, and a plurality of noise filtering elements configured to remove optical noise components from the diffracted light modulated by the spatial light modulator, and display a hologram, an optical path of a light source for displaying the hologram can be drastically reduced while effectively performing spatial filtering.
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