公开(公告)号：US11551367B2

公开(公告)日：2023-01-10

申请号：US16851093

申请日：2020-04-16

Applicant: Samsung Electronics Co., Ltd.

Inventor： Lilong Shi ,  Seunghoon Han

IPC: G06T7/521 ,  G01B11/25 ,  G06V10/75 ,  H04N13/254 ,  H04N13/271 ,  H04N13/207 ,  H04N13/00

Abstract: A system and a method are disclosed for a structured-light system to estimate depth in an image. An image is received in which the image is of a scene onto which a reference light pattern has been projected. The projection of the reference light pattern includes a predetermined number of particular sub-patterns. A patch of the received image and a sub-pattern of the reference light pattern are matched based on either a hardcode template matching technique or a probability that the patch corresponds to the sub-pattern. If a lookup table is used, the table may be a probability matrix, may contain precomputed correlations scores or may contain precomputed class IDs. An estimate of depth of the patch is determined based on a disparity between the patch and the sub-pattern.

公开(公告)号：US11513219B2

公开(公告)日：2022-11-29

申请号：US16884850

申请日：2020-05-27

Applicant: SAMSUNG ELECTRONICS CO., LTD. ,  CALIFORNIA INSTITUTE OF TECHNOLOGY

Inventor： Duhyun Lee ,  Muhammad Alam ,  Harry Atwater ,  Ragip Pala ,  Byunghoon Na ,  Seunghoon Han

IPC: G01S17/02 ,  G02F1/017 ,  G01S7/481 ,  G02F1/21 ,  G02F1/29 ,  G02F1/015

Abstract: Provided are an optical modulating device and a system including the optical modulating device. The optical modulating device includes a substrate, and a phase modulator formed on the substrate and including a Fabry-Perot cavity. The Fabry-Perot cavity of the phase modulator includes a first reflective layer, a second reflective layer, and a tunable core formed between the first reflective layer and the second reflective layer, wherein the tunable core is formed of a semiconductor material and is configured to modulate a phase of light corresponding to modulation of a refractive index of the tunable core according to electrical control.

公开(公告)号：US20220373789A1

公开(公告)日：2022-11-24

申请号：US17874004

申请日：2022-07-26

Applicant: Samsung Electronics Co., Ltd. ,  California Institute of Technology

Inventor： Amir ARBABI ,  Seunghoon Han ,  Andrei Faraon

IPC: G02B27/00 ,  G02B5/30 ,  G02B5/02 ,  G02B23/00 ,  G02B27/09 ,  G02B5/18 ,  G02B27/42

Abstract: A focusing device includes a substrate and a plurality of scatterers provided at both sides of the substrate. The scatterers on the both sides of the focusing device may correct geometric aberration, and thus, a field of view (FOV) of the focusing device may be widened.

公开(公告)号：US11454808B2

公开(公告)日：2022-09-27

申请号：US16865554

申请日：2020-05-04

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Hyunsung Park ,  Seunghoon Han ,  Hyeonsoo Park ,  Changgyun Shin

IPC: G02B27/14 ,  G02B27/00 ,  G02B26/06 ,  G02B1/00

Abstract: Provided is a metalens including a first metasurface including a plurality of first nanostructures disposed based on a first shape distribution, and a second metasurface spaced apart from the first metasurface at a distance greater than a central wavelength of a predetermined wavelength band, the second metasurface including a plurality of second nanostructures disposed based on a second shape distribution, wherein the metalens provides chromatic aberration for light in the predetermined wavelength band.

公开(公告)号：US11428929B2

公开(公告)日：2022-08-30

申请号：US16885729

申请日：2020-05-28

Applicant: SAMSUNG ELECTRONICS CO., LTD. ,  CALIFORNIA INSTITUTE OF TECHNOLOGY

Inventor： Amir Arbabi ,  Seunghoon Han ,  Andrei Faraon

IPC: G02B5/30 ,  G02B27/00 ,  G02B5/02 ,  G02B23/00 ,  G02B27/09 ,  G02B5/18 ,  G02B27/42 ,  G02B3/00

Abstract: A focusing device includes a substrate and a plurality of scatterers provided at both sides of the substrate. The scatterers on the both sides of the focusing device may correct geometric aberration, and thus, a field of view (FOV) of the focusing device may be widened.

公开(公告)号：US11162841B2

公开(公告)日：2021-11-02

申请号：US16692776

申请日：2019-11-22

Applicant: SAMSUNG ELECTRONICS CO., LTD. ,  CALIFORNIA INSTITUTE OF TECHNOLOGY

Inventor： Seunghoon Han ,  Amir Arbabi ,  Andrei Faraon ,  Ehsan Arbabi

IPC: G01J3/02 ,  G01J3/28 ,  G01J3/447 ,  B82Y20/00

Abstract: A spectrometer includes a substrate; a slit which is provided on the substrate and through which light is incident onto the substrate; a metasurface including nanostructures that is configured to reflect and focus the light incident thereon through the slit, at different angles based on respective wavelengths; and a sensor which is provided on one side of the substrate that is opposite to another side of the substrate at which the metasurface is disposed, and configured to receive the light from the metasurface.

公开(公告)号：US11042243B2

公开(公告)日：2021-06-22

申请号：US15991005

申请日：2018-05-29

Applicant: Samsung Electronics Co., Ltd.

Inventor： Seunghoon Han ,  Byunghoon Na ,  Jangwoo You

IPC: 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

Abstract: 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.

公开(公告)号：US10923625B2

公开(公告)日：2021-02-16

申请号：US16196098

申请日：2018-11-20

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Byunghoon Na ,  Jangwoo You ,  Seunghoon Han

IPC: G06K9/00 ,  H01L33/08 ,  G06T7/521 ,  H01L27/15 ,  H01L33/06 ,  H01L33/10

Abstract: Provided is a light source device including a substrate, a first light emitting element disposed on the substrate and including a first reflective layer, a second light emitting layer configured to emit light of a second wavelength, a first etch stop layer, a first light emitting layer configured to emit light of a first wavelength different from the second wavelength, and a first nanostructure reflective layer, and a second light emitting element disposed on the substrate, spaced apart from the first light emitting element, and comprising a second reflective layer having same material and thickness as the first reflective layer, a third light emitting layer having same material and structure as the second emitting layer and configured to generate light of the second wavelength, a second etch stop layer having same material and thickness as the first etch stop layer, and a second nanostructure reflective layer.

公开(公告)号：US10740913B2

公开(公告)日：2020-08-11

申请号：US15907242

申请日：2018-02-27

Applicant: Samsung Electronics Co., Ltd.

Inventor： Lilong Shi ,  Seunghoon Han

IPC: G06T7/521 ,  G06K9/62 ,  H04N13/271 ,  H04N13/254 ,  G01B11/25 ,  H04N13/00 ,  H04N13/207

Abstract: A system and a method are disclosed for a structured-light system to estimate depth in an image. An image is received in which the image is of a scene onto which a reference light pattern has been projected. The projection of the reference light pattern includes a predetermined number of particular sub-patterns. A patch of the received image and a sub-pattern of the reference light pattern are matched based on either a hardcode template matching technique or a probability that the patch corresponds to the sub-pattern. If a lookup table is used, the table may be a probability matrix, may contain precomputed correlations scores or may contain precomputed class IDs. An estimate of depth of the patch is determined based on a disparity between the patch and the sub-pattern.

公开(公告)号：US10403668B2

公开(公告)日：2019-09-03

申请号：US15221719

申请日：2016-07-28

Applicant: SAMSUNG ELECTRONICS CO., LTD. ,  CALIFORNIA INSTITUTE OF TECHNOLOGY

Inventor： Amir Arbabi ,  Seunghoon Han ,  Andrei Faraon

IPC: H04N13/00 ,  G06T7/00 ,  H01L27/146 ,  G03B35/10 ,  H04N5/225

Abstract: An image sensor includes a substrate, thin lenses disposed on a first surface of the substrate and configured to concentrate lights incident on the first surface, and light-sensing cells disposed on a second surface of the substrate, the second surface facing the first surface, and the light-sensing cells being configured to sense lights passing through the thin lenses, and generate electrical signals based on the sensed lights. A first thin lens and second thin lens of the thin lenses are configured to concentrate a first light and a second light, respectively, of the incident lights onto the light-sensing cells, the first light having a different wavelength than the second light.