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公开(公告)号：US11808918B2
公开(公告)日：2023-11-07
申请号：US17499170
申请日：2021-10-12
发明人： Jaekwan Kim , Jeongyub Lee , Seunghoon Han , Yongsung Kim , Byunghoon Na , Jangwoo You , Changseung Lee
CPC分类号： G02B1/002 , G02B5/005 , G02B5/1814 , G02B27/4211 , B82Y20/00
摘要： Provided are meta-surface optical device and methods of manufacturing the same. The meta-surface optical device may include a meta-surface arranged on a region of a substrate and a light control member arranged around the meta-surface. The light control member may be arranged on or below the substrate. A material layer formed of the same material used to form the meta-surface may be disposed between the light control member and the substrate. Also, the meta-surface may be a first meta-surface arranged on an upper surface of the substrate, and a second meta-surface may be arranged on a bottom surface of the substrate. Also, the meta-surface may include a first meta-surface and at least one second meta-surface may formed on the first meta-surface, and the light control member may be arranged around the at least one second meta-surface.
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公开(公告)号：US11449178B2
公开(公告)日：2022-09-20
申请号：US17241867
申请日：2021-04-27
发明人： Seunghoon Han , Byunghoon Na , Jangwoo You
IPC分类号： G06F3/042 , H01S5/026 , G01B9/08 , G01B11/22 , G03B21/00 , G03B21/20 , G02B1/00 , G02B1/118 , G02B27/20 , G01B11/25 , H01S5/12 , H01S5/343 , H01S5/30 , G02B5/18 , G02B27/09
摘要： A meta projector includes an edge emitting device configured to emit light through a side surface thereof, a meta-structure layer spaced apart from the upper surface of the edge emitting device that includes a plurality of nanostructures having a sub-wavelength shape dimension smaller than a wavelength of the light emitted from the edge emitting device, and a path changing member configured to change a path of the light emitted from the edge emitting device so as to direct the path toward the meta-structure layer. The meta projector may thus be configured to emit a light pattern of structured light, based on directing the light emitted from the edge emitting device through the meta-structure layer, while having a relatively compact device size.
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公开(公告)号：US20210311588A1
公开(公告)日：2021-10-07
申请号：US17241867
申请日：2021-04-27
发明人： Seunghoon Han , Byunghoon Na , Jangwoo You
IPC分类号： G06F3/042 , H01S5/026 , G01B9/08 , G01B11/22 , G03B21/00 , G03B21/20 , G02B1/00 , G02B1/118 , G02B27/20 , G01B11/25
摘要： A meta projector includes an edge emitting device configured to emit light through a side surface thereof, a meta-structure layer spaced apart from the upper surface of the edge emitting device that includes a plurality of nanostructures having a sub-wavelength shape dimension smaller than a wavelength of the light emitted from the edge emitting device, and a path changing member configured to change a path of the light emitted from the edge emitting device so as to direct the path toward the meta-structure layer. The meta projector may thus be configured to emit a light pattern of structured light, based on directing the light emitted from the edge emitting device through the meta-structure layer, while having a relatively compact device size.
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公开(公告)号：US11041713B2
公开(公告)日：2021-06-22
申请号：US15984831
申请日：2018-05-21
发明人： Seunghoon Han , Byunghoon Na , Jangwoo You
IPC分类号： G01B11/22 , G02B1/00 , H01S5/183 , H01S5/12 , G02B3/08 , H01S5/40 , G02B3/00 , H01S5/42 , G02B5/18 , G02B27/42 , B82Y20/00 , H01S5/00 , H01S5/042
摘要： Provided are a nanostructured optical element, a depth sensor, and an electronic device. The nanostructured optical element includes: a light source in which a plurality of laser sources irradiating light are configured as an array; a meta-pattern layer including a plurality of first nano-posts that are two-dimensionally configured while satisfying a sub-wavelength condition, wherein the plurality of first nano-posts are configured to change the light from the light source into structured light; and a deflecting layer between the light source and the meta-pattern layer, and configured to change a proceeding direction of the light to make the light from the light source be incident to the meta-pattern layer.
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公开(公告)号：US10965102B2
公开(公告)日：2021-03-30
申请号：US16242427
申请日：2019-01-08
发明人： Byunghoon Na , Jangwoo You , Namseop Kwon , Minkyung Lee , Seunghoon Han
摘要： Provided are a structured light projector that generates and projects structured light, and an electronic apparatus including the structured light projector. The structured light projector includes an illuminator configured to emit light, a pattern mask configured to form structured light by partially transmitting and partially blocking incident light from the illuminator based on a pattern of the pattern mask, and a lens configured to project the structured light. The illuminator includes a plurality of illumination areas respectively facing a plurality of areas of the pattern mask, wherein intensities of lights respectively emitted by the plurality of illumination areas are different from one other.
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公开(公告)号：US10746878B2
公开(公告)日：2020-08-18
申请号：US15076947
申请日：2016-03-22
发明人： Heesun Yoon , Jangwoo You , Yonghwa Park
摘要： A method of measuring a distance by using a 3-dimensional (3D) depth sensor is provided. The method may include: measuring m number of frames using light modulated at a first frequency to determine a first tentative distance from a viewpoint to an object at the first frequency, m being a positive integer; measuring n number of frames using light modulated at a second frequency to determine a second tentative distance from the viewpoint to the object at the second frequency, n being a positive integer, a sum of m and n being four; and determining a resulting distance to the object based on the first distance and the second distance.
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公开(公告)号：US20200081294A1
公开(公告)日：2020-03-12
申请号：US16460434
申请日：2019-07-02
发明人： Jangwoo You , Seunghoon Han , Namseop Kwon , Byunghoon Na , Minkyung Lee , Suyeon Lee
IPC分类号： G02F1/1335
摘要： Provided in an illumination device including a display panel including a first surface configured to display an image, a second surface opposite to the first surface, a plurality of display pixels disposed between the first surface and the second surface, and a transmission window configured to transmit light incident on the second surface through the first surface, a light source disposed at the second surface of the display panel and configured to emit light to an object toward the display panel, and a light deliverer disposed between the light source and the display panel, the light deliverer configured to deliver the light emitted from the light source to the object as flood illumination through the transmission window.
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公开(公告)号：US11976918B2
公开(公告)日：2024-05-07
申请号：US17200073
申请日：2021-03-12
发明人： Namseop Kwon , Jangwoo You , Minkyung Lee , Byunghoon Na , Seunghoon Han
CPC分类号： G01B11/2513 , F21V5/045 , F21V11/08 , F21V13/02 , G01B11/22
摘要： A structured light projectors includes an illuminator configured to emit illumination light, a pattern mask configured to project structured light by partially transmitting the illumination light, and a lens configured to project the structured light, wherein the pattern mask includes a first lens distortion compensation region including a plurality of opaque first light shielding patterns having a first pattern width, respectively, and a second lens distortion compensation region surrounding the first lens distortion compensation region, the second lens distortion compensation region including a plurality of opaque second light shielding patterns having a second pattern width, respectively, wherein the second pattern width is less than the first pattern width.
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公开(公告)号：US20230044142A1
公开(公告)日：2023-02-09
申请号：US17970258
申请日：2022-10-20
发明人： Seunghoon HAN , Jangwoo You , Byunghoon Na
IPC分类号： G01S17/894 , G01S7/481 , G02B3/00 , G02B5/02
摘要： An illumination device includes a display panel including a first surface on which an image is displayed, a second surface opposite to the first surface, display pixels interposed between the first surface and the second surface, and a transmitting window interposed between the first surface and the second surface. The illumination device further includes a light source disposed on a side of the second surface of the display panel, and emitting light toward the second surface, and a light transmitter interposed between the light source and the display panel, and transmitting the emitted light to the transmitting window, the transmitted light being incident on the second surface of the display panel and being transmitted through the transmitting window toward the first surface of the display panel. The illumination device further includes a diffuser diffusing the light transmitted through the transmitting window.
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公开(公告)号：US11353626B2
公开(公告)日：2022-06-07
申请号：US16199759
申请日：2018-11-26
发明人： Jangwoo You , Namseop Kwon , Byunghoon Na , Minkyung Lee , Seunghoon Han
摘要： Provided are meta illuminators. The meta illuminators according to embodiments include a first light emitter configured to emit pattern light, and a second light emitter configured to emit non-patterned light, wherein the first and second light emitters forms a single body. The first and second light emitters respectively include meta-surfaces that are different from each other, and the different meta-surfaces may be formed on a single material layer. The first light emitter includes a pattern region that transmits a portion of incident light, and the second light emitter does not include the pattern region. A mask may be arranged between the light source and the transparent substrate.
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