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公开(公告)号：US20220390749A1
公开(公告)日：2022-12-08
申请号：US17879469
申请日：2022-08-02
发明人： Jeonggeun YUN , Byoungho LEE , Kiseung BANG , Chanhyung YOO , Kyookeun LEE , Minseok CHAE
摘要： Provided is a waveguide-type display device including a waveguide, an input coupler provided on the waveguide and configured to transmit an image to travel into the waveguide, an output coupler provided on the waveguide and configured to output the image traveling in the waveguide to an outside of the waveguide, and a field-of-view (FOV) expander configured to output an image having an expanded FOV by deflecting and outputting the image output from the output coupler in a certain direction based on polarization characteristics of the image.
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公开(公告)号：US20200264441A1
公开(公告)日：2020-08-20
申请号：US16683643
申请日：2019-11-14
发明人： Changkun LEE , Seokil MOON , Byoungho LEE , Sunil KIM , Bongsu SHIN , Hongseok LEE
摘要： Provided is a multi-image display apparatus including a light source configured to emit a first wavelength light, a second wavelength light, and a third wavelength light, a spatial light modulator configured to modulate the first wavelength light, the second wavelength light, and the third wavelength light to form a first image including a first color holographic image, a second color holographic image, and a third color holographic image, a polarization selective lens configured to focus the first image having only a first polarization component and transmit a second image having only a second polarization component without refraction, the second image being provided to the polarization selective lens along a different path from the first image, wherein chromatic aberration of the polarization selective lens is offset by adjusting a depth of the first color holographic image, the second color holographic image, and the third color holographic image.
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公开(公告)号：US20210191129A1
公开(公告)日：2021-06-24
申请号：US17131131
申请日：2020-12-22
发明人： Changkun LEE , Byoungho LEE , Jinsoo JEONG , Seokil MOON , Geeyoung SUNG , Hongseok LEE
摘要： A display apparatus including a volume grating-based combiner is disclosed. The display apparatus includes: an image providing device; and a combiner, wherein the combiner includes a plurality of volume gratings configured to diffract light containing an image, which is emitted from the image providing device, each volume grating has a first surface and a second surface facing each other, and each volume grating is further configured to diffract light incident on the first surface and transmit therethrough light incident on the second surface without diffraction.
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公开(公告)号：US20190079218A1
公开(公告)日：2019-03-14
申请号：US16122012
申请日：2018-09-05
发明人： Young-yoon LEE , Jonghyun KIM , Byoungho LEE , Jong-Young HONG , Seokil MOON , Chanhyung YOO
CPC分类号： G02B5/0205 , G02B3/005 , G02B5/0215 , G02B5/3083 , G02B27/01 , G02B27/286
摘要： A transparent panel is provided. The transparent panel includes a polarization plate, a transparent diffusion plate which is disposed on one side of the polarization plate and is configured to transmit light incident from a side of the polarization plate and to reflect and diffuse a light incident from an opposite side of the polarization plate, a ¼ wavelength plate which is disposed on one side of the transparent diffusion plate and is configured to convert a polarization direction of an incident light, and a lens part which is disposed on one side of the ¼ wavelength plate. The lens part includes a lens array comprising a birefringent material having different refractive indexes according to a polarization direction of an incident light, and a refractive index alignment member configured to transmit or refract the light according to a polarization direction of a light that penetrates the lens array.
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公开(公告)号：US20180060639A1
公开(公告)日：2018-03-01
申请号：US15496156
申请日：2017-04-25
发明人： Jaesoong LEE , Byoungho LEE , Youngmo JEONG
CPC分类号： G06K9/0012 , G06F21/32 , G06K9/00013 , G06K9/00087 , G06K9/00114 , G06K9/6202 , G06K2009/0006
摘要： Provided are apparatuses and methods using an optical speckle. An apparatus may include a light source configured to emit coherent light to an object and an imaging device configured to photograph a speckle pattern generated on the object by the coherent light. The apparatus may also include a processor having a function of determining whether the object is a living body or a non-living body by measuring a contrast of the speckle pattern. The processor may be configured to determine whether the object is a living body or not by comparing the contrast of the speckle pattern with a threshold contrast or a reference contrast previously registered by a user. The apparatus may be used by being applied to a fingerprint recognition system.
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6.发明申请LASER SPECKLE CONTRAST IMAGING SYSTEM, LASER SPECKLE CONTRAST IMAGING METHOD, AND APPARATUS INCLUDING THE LASER SPECKLE CONTRAST IMAGING SYSTEM 审中-公开激光光谱对比成像系统，激光光谱对比成像方法和包括激光光谱对比成像系统的设备公开(公告)号：US20170017858A1
公开(公告)日：2017-01-19
申请号：US15184655
申请日：2016-06-16
发明人： Younggeun ROH , Byoungho LEE , Jiwoon YEOM , Youngmo JEONG , Jinsoo JEONG
IPC分类号： G06K9/46 , G06T7/20 , G06T7/00 , A61B5/00 , G02B27/48 , G02B13/00 , A61B5/026 , G06K9/00 , G06T5/00
CPC分类号： A61B5/7207 , A61B5/0261 , A61B5/6898 , G02B13/009 , G02B13/146 , G02B21/0008 , G02B27/48 , G06K9/0012 , G06K2009/00932
摘要： Provided are a laser speckle contrast imaging method, a laser speckle contrast imaging system, and an apparatus which includes the laser speckle contrast imaging system. The laser speckle contrast imaging system includes a laser light source configured to irradiate laser beams toward a subject, the laser beams having a plurality of wavelength bands and different surface transmittances with respect to the subject. An imaging unit is configured to acquire speckle images by capturing images of speckles by using an image sensor, the speckles being formed when the irradiated laser beams are scattered from the subject. A signal processor is configured to convert the acquired speckle images into speckle contrast images and to acquire a compensated speckle contrast image by compensating for a change caused by a movement of the subject.
摘要翻译： 提供了激光散斑对比度成像方法，激光散斑对比度成像系统和包括激光散斑对比成像系统的装置。 激光散斑对比度成像系统包括被配置为朝向被摄体照射激光束的激光源，激光束相对于被摄体具有多个波长带和不同的表面透射率。 成像单元被配置为通过使用图像传感器捕获斑点的图像来获取斑点图像，当照射的激光束从被摄体散射时形成斑点。 信号处理器被配置为将所获取的斑点图像转换成散斑对比图像，并且通过补偿由对象的移动引起的变化来获取补偿的散斑对比图像。
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公开(公告)号：US20210397130A1
公开(公告)日：2021-12-23
申请号：US17242723
申请日：2021-04-28
发明人： Sang-Ho KIM , Dukho LEE , Byungchoon YANG , Byoungho LEE , Jaebum CHO
摘要： A hologram display device includes a light generator generating light, a spatial light modulator forming an interference pattern to interfere with the light, and a controller providing interference data to the spatial light modulator to form the interference pattern. The spatial light modulator includes a first area in which pixels are arranged in a first pattern, and a second area in which pixels are arranged in a second pattern. The controller includes a data generator generating first interference data for the first area and second interference data for the second area, a compensator generating first correction data based on the first interference data and second correction data by correcting the second interference data, and an output unit generating the interference data based on the first correction data and the second correction data.
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8.发明申请公开(公告)号：US20200183329A1
公开(公告)日：2020-06-11
申请号：US16738658
申请日：2020-01-09
发明人： Byoungho LEE , Youngmo JEONG , Gang LI , Dukho LEE
摘要： An apparatus for manufacturing a hologram includes a holographic optical element on which a first interference pattern of a first signal beam and a first reference beam is recorded and a second interference pattern of a second signal beam modulated by a Fourier lens and a second reference beam is recorded. Also, an apparatus for reconstructing a hologram by using the holographic optical element is provided.
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9.发明申请公开(公告)号：US20180129165A1
公开(公告)日：2018-05-10
申请号：US15807199
申请日：2017-11-08
发明人： Byoungho LEE , Youngmo JEONG , Gang LI , Dukho LEE
CPC分类号： G03H1/2205 , G03H1/0406 , G03H1/0443 , G03H1/2286 , G03H1/2294 , G03H1/28 , G03H2001/0413 , G03H2001/0415 , G03H2001/0439 , G03H2001/045 , G03H2001/221 , G03H2001/2284 , G03H2222/33 , G03H2223/23
摘要： An apparatus for manufacturing a hologram includes a holographic optical element on which a first interference pattern of a first signal beam and a first reference beam is recorded and a second interference pattern of a second signal beam modulated by a Fourier lens and a second reference beam is recorded. Also, an apparatus for reconstructing a hologram by using the holographic optical element is provided.
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公开(公告)号：US20160020202A1
公开(公告)日：2016-01-21
申请号：US14804830
申请日：2015-07-21
发明人： Yeonsang PARK , Byoungho LEE , Sungwoo HWANG , Younggeun ROH , Changwon LEE
IPC分类号： H01L27/02 , H01L23/373 , H01L23/367
CPC分类号： H01L27/0248 , H01L23/373 , H01L23/3733 , H01L23/3738 , H01L2924/0002 , H01L2924/00
摘要： An apparatus configured to control a heat flow is provided. The apparatus may include a semiconductor device region formed in a matrix; a heat rectifier region formed adjacent to the semiconductor device region; and a heat flow blocker formed in at least one region contacting the semiconductor device region and the heat rectifier region.
摘要翻译： 提供了一种配置成控制热流的装置。 该装置可以包括形成在矩阵中的半导体器件区域; 与所述半导体器件区域相邻形成的热交换器区域; 以及形成在与半导体器件区域和热整流器区域接触的至少一个区域中的热流阻塞器。
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