公开(公告)号：US11997412B2

公开(公告)日：2024-05-28

申请号：US17689883

申请日：2022-03-08

Applicant: Samsung Electronics Co., Ltd.

Inventor： Radwanul Hasan Siddique ,  Yibing Michelle Wang

IPC: H04N5/33 ,  G01J5/0803 ,  G01J5/00

CPC classification number: H04N5/33 ,  G01J5/0803 ,  G01J2005/0077

Abstract: An imaging device includes: a sensor to detect a first target spectrum, the first target spectrum corresponding to a thermal imaging region of an infrared (IR) spectrum; and an optical device to transmit external light to the sensor, the optical device including: a substrate; and a plurality of nanostructures on the substrate, and to collimate at least the first target spectrum in the external light on the sensor. The plurality of nanostructures are spaced apart from each other, and at least one of the plurality of nanostructures has a different geometric size from that of another.

公开(公告)号：US11920982B2

公开(公告)日：2024-03-05

申请号：US17989605

申请日：2022-11-17

Applicant: Samsung Electronics Co., Ltd.

Inventor： Radwanul Hasan Siddique ,  Daniel Assumpcao ,  Hyuck Choo ,  Hyochul Kim

IPC: G01J3/18 ,  G01J3/02 ,  G01J3/28 ,  G01J3/44

CPC classification number: G01J3/2823 ,  G01J3/0208 ,  G01J3/0229 ,  G01J3/18 ,  G01J3/4412

Abstract: Optical spectrometers may be used to determine the spectral components of electromagnetic waves. Spectrometers may be large, bulky devices and may require waves to enter at a nearly direct angle of incidence in order to record a measurement. What is disclosed is an ultra-compact spectrometer with nanophotonic components as light dispersion technology. Nanophotonic components may contain metasurfaces and Bragg filters. Each metasurface may contain light scattering nanostructures that may be randomized to create a large input angle, and the Bragg filter may result in the light dispersion independent of the input angle. The spectrometer may be capable of handling about 200 nm bandwidth. The ultra-compact spectrometer may be able to read image data in the visible (400-600 nm) and to read spectral data in the near-infrared (700-900 nm) wavelength range. The surface area of the spectrometer may be about 1 mm2, allowing it to fit on mobile devices.

公开(公告)号：US11774655B2

公开(公告)日：2023-10-03

申请号：US17005304

申请日：2020-08-27

Applicant: Samsung Electronics Co., Ltd.

Inventor： Radwanul Hasan Siddique ,  MohammadSadegh Faraji-Dana

IPC: G02B5/30 ,  H01L27/146 ,  H04N23/55

CPC classification number: G02B5/3025 ,  G02B5/3083 ,  H01L27/14621 ,  H04N23/55

Abstract: A filter for an imaging device includes an array of phase-modulating nanostructures formed on a substrate. At least one phase-modulating nanostructure of the array of phase-modulating nanostructures changes a phase of incident light a predetermined amount based on a first width and a second width of the phase-modulating nanostructure in which the first width is perpendicular to the second width. In one embodiment, the filter focuses light incident on the filter towards a center a pixel of an image sensor at an image plane. In another embodiment, the phase-modulating nanostructure is formed from a material having a refractive index that is greater than 1.9. The filter can also be used to form a quarter-wave plate.

公开(公告)号：US11454546B2

公开(公告)日：2022-09-27

申请号：US16937572

申请日：2020-07-23

Applicant: Samsung Electronics Co., Ltd.

Inventor： Kwang Oh Kim ,  Yibing Michelle Wang ,  Radwanul Hasan Siddique

IPC: G01J5/22 ,  H01L27/146 ,  H04N5/33

Abstract: A pixel for an image sensor includes a resistive microbolometer sensor portion, a visible image sensor portion, and an output path. The resistive microbolometer sensor portion outputs a signal corresponding to an infrared (IR) image sensed by the resistive microbolometer sensor portion. The resistive microbolometer sensor portion uses no bias current. The visible image sensor portion outputs a signal corresponding to a visible image sensed by the visible image sensor portion. The output path is shared by the resistive microbolometer sensor portion and the visible image sensor portion, and may be controlled to selectively output the signal corresponding to the IR image, the signal corresponding to the visible image, or a fused image based on the IR image and the visible image. The resistive microbolometer sensor portion may sense a near infrared image or a longwave infrared image.

公开(公告)号：US20220191410A1

公开(公告)日：2022-06-16

申请号：US17689883

申请日：2022-03-08

Applicant: Samsung Electronics Co., Ltd.

Inventor： Radwanul Hasan Siddique ,  Yibing Michelle Wang

IPC: H04N5/33 ,  G01J5/0803

Abstract: An imaging device includes: a sensor to detect a first target spectrum, the first target spectrum corresponding to a thermal imaging region of an infrared (IR) spectrum; and an optical device to transmit external light to the sensor, the optical device including: a substrate; and a plurality of nanostructures on the substrate, and to collimate at least the first target spectrum in the external light on the sensor. The plurality of nanostructures are spaced apart from each other, and at least one of the plurality of nanostructures has a different geometric size from that of another.

公开(公告)号：US11303827B2

公开(公告)日：2022-04-12

申请号：US16906917

申请日：2020-06-19

Applicant: Samsung Electronics Co., Ltd.

Inventor： Radwanul Hasan Siddique ,  Yibing Michelle Wang

IPC: H04N5/33 ,  G01J5/0803 ,  G01J5/00

Abstract: An imaging device includes: a sensor to detect a first target spectrum, the first target spectrum corresponding to a thermal imaging region of an infrared (IR) spectrum; and an optical device to transmit external light to the sensor, the optical device including: a substrate; and a plurality of nanostructures on the substrate, and to collimate at least the first target spectrum in the external light on the sensor. The plurality of nanostructures are spaced apart from each other, and at least one of the plurality of nanostructures has a different geometric size from that of another.

公开(公告)号：US20210325541A1

公开(公告)日：2021-10-21

申请号：US16940308

申请日：2020-07-27

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Kwang Oh KIM ,  Yibing Michelle WANG ,  Radwanul Hasan Siddique ,  Lilong SHI ,  Chunji WANG

IPC: G01S17/894 ,  H04N13/254 ,  H04N13/156 ,  H04N5/369 ,  G06K9/00 ,  G06T7/20 ,  G06T7/521 ,  G06T7/55

Abstract: Provided is a 3D depth sensing system and method of providing an image based on a hybrid sensing array. The 3D sensing system including a light source configured to emit light, a hybrid sensing array comprising a 2D sensing region configured to detect ambient light reflected from an object and a 3D depth sensing region configured to detect the light emitted by the light source and reflected from the object, a metalens on the hybrid sensing array, the metalens being configured to direct the ambient light reflected from the object towards the 2D sensing region, and to direct the light emitted by the light source and reflected from the object towards the 3D depth sensing region, and a processing circuit configured to combine 2D image information provided by the 2D sensing region and 3D information provided by the 3D depth sensing region to generate a combined 3D image.

公开(公告)号：US20210299294A1

公开(公告)日：2021-09-30

申请号：US17036452

申请日：2020-09-29

Applicant: Samsung Electronics Co., Ltd.

Inventor： Radwanul Hasan Siddique ,  Yibing Michelle Wang

IPC: A61L2/08 ,  G02B1/10 ,  A61L2/10

Abstract: A surface coating configured to locally enhance ultraviolet light density of ultraviolet light incident on the surface coating. The surface coating includes a dielectric layer, a conductive layer on the dielectric layer, a series of nano-openings in the dielectric layer and the conductive layer, a series of nano-antennae in the series of nano-openings, and a dielectric gap between the series of nano-antennas and the conductive layer. The conductive layer and the nano-antennae both include a UV plasmonic material.