公开(公告)号：US20240377699A1

公开(公告)日：2024-11-14

申请号：US18225097

申请日：2023-07-21

Applicant: Samsung Electronics Co., Ltd.

Inventor： Haeri Park HANANIA ,  Radwanul Hasan SIDDIQUE ,  Yibing Michelle WANG

IPC: G02F1/29

Abstract: A diffractive optical pattern generator includes a diffractive optical element layer, and a nanostructure layer configured for beam steering an input light applied to the diffractive optical pattern generator to at least one of a polar beam-steering angle that is measured in a plane that is substantially normal to a direction of the input light and an azimuth beam-steering angle measured with respect to the direction of the input light. A dynamic transmission layer may be included in which at least one region of the dynamic transmission layer may be selectively controllable to transmit light through or to block light from passing through the dynamic transmission layer. The nanostructure layer may include nanostructures having a periodicity ranging from 0.75 λ to 3 λ of a target wavelength λ. The nanostructure layer may be configured to beam steer light input to the DOE layer or beam steer light output from the DOE layer.

公开(公告)号：US20230228909A1

公开(公告)日：2023-07-20

申请号：US17699071

申请日：2022-03-18

Applicant: Samsung Electronics Co., Ltd.

Inventor： Haeri Park HANANIA ,  Radwanul Hasan SIDDIQUE ,  Yibing Michelle WANG

IPC: G02B1/00 ,  G02B1/02 ,  G02F1/29

CPC classification number: G02B1/002 ,  G02B1/02 ,  G02F1/29

Abstract: A thin-film optical device disclosed herein includes a metalens able to modulate the phase of incident light. The metalens includes a thin-film layer having a first index of refraction, an embedded layer within the thin-film layer, and the embedded layer having a second index of refraction greater than or equal to 1.5 and less than or equal to 3.0 times the first index of refraction. The embedded layer may fill a plurality of holes formed on the thin film layer, with the depth, width, and spacing of holes all contribute to modulating the phase of light traveling through the metalens.

公开(公告)号：US20230217128A1

公开(公告)日：2023-07-06

申请号：US18072689

申请日：2022-11-30

Applicant: Samsung Electronics Co., Ltd.

Inventor： Yibing Michelle WANG ,  Chunji WANG ,  Yanhai REN ,  Tze-Ching FUNG ,  Duhyun LEE

IPC: H04N25/713 ,  H04N25/53

CPC classification number: H04N25/713 ,  H04N25/53

Abstract: The present disclosure relates to a method and system for imaging a scene. The method includes generating a shutter pattern and applying the shutter pattern to a photodetector array. The system includes a sensor architecture in three dimensions, where elements of the sensor architecture are stacked in two or more layers. Some elements of the sensor architecture include a photodetector array, register array, a generator to generate shutter patterns, readout circuitry, and an ISP.

公开(公告)号：US20230030480A1

公开(公告)日：2023-02-02

申请号：US17499857

申请日：2021-10-12

Applicant: Samsung Electronics Co., Ltd.

Inventor： Kwang Oh KIM ,  Yibing Michelle WANG ,  Chunji WANG ,  Hongyu WANG

IPC: G01S17/10 ,  H04N5/378 ,  G04F10/00 ,  G01S7/4865 ,  G01S7/4861

Abstract: A LiDAR system is disclosed that includes a SPAD unit array and J read group (RG) channels. The SPAD unit array is arranged in M rows and N columns of pixel read groups. Each row includes K pixel read groups. Each pixel read group outputs a detection signal in response to a light pulse that is incident on the pixel read group. Each RG channel corresponds to at least one row of pixel read groups and includes L time-to-digital converters that respectively generate timestamp information corresponding to detection event signals of each of L pixel read groups in the at least one row of pixel read groups in which J

公开(公告)号：US20220146683A1

公开(公告)日：2022-05-12

申请号：US17583190

申请日：2022-01-24

Applicant: Samsung Electronics Co., Ltd.

Inventor： Yibing Michelle WANG ,  Lilong SHI ,  Ilia OVSIANNIKOV

IPC: G01S17/894 ,  H04N5/225 ,  H04N5/232 ,  G01N21/55 ,  G01S7/4865 ,  G01S7/481

Abstract: An image sensor includes a time-resolving sensor and a processor. The time-resolving sensor outputs a first signal and a second signal pair in response detecting one or more photons that have been reflected from an object. A first ratio of a magnitude of the first signal to a sum of the magnitude of the first signal and a magnitude of the second signal is proportional to a time of flight of the one or more detected photons. A second ratio of the magnitude of the second signal to the sum of the magnitude of the first signal and the magnitude of the second signal is proportional to the time of flight of the one or more detected photons. The processor determines a surface reflectance of the object where the light pulse has been reflected based on the first signal and the second signal pair and may generate a grayscale image.

公开(公告)号：US20210341284A1

公开(公告)日：2021-11-04

申请号：US17374982

申请日：2021-07-13

Applicant: Samsung Electronics Co., Ltd.

Inventor： Lilong SHI ,  Yibing Michelle WANG

IPC: G01B11/25 ,  G06T7/50

Abstract: A structured-light pattern for a structured-light system includes a base light pattern that includes a row of a plurality of sub-patterns extending in a first direction. Each sub-pattern is adjacent to at least one other sub-pattern, and each sub-pattern is different from each other sub-pattern. Each sub-pattern includes a first number of portions in a sub-row and a second number of portions in a sub-column. Each sub-row extends in the first direction and each sub-column extends in a second direction that is substantially orthogonal to the first direction. Each portion may be a first-type portion or a second-type portion. A size of a first-type portion is larger in the first direction and in the second direction than a size of a second-type portion in the first direction and in the second direction. In one embodiment, a first-type portion is a black portion and the second-type portion is a white portion.

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：US20210144327A1

公开(公告)日：2021-05-13

申请号：US17093632

申请日：2020-11-09

Applicant: Samsung Electronics Co., Ltd.

Inventor： Yibing Michelle WANG ,  Ilia OVSIANNIKOV

IPC: H04N5/378 ,  H04N5/374 ,  H04N5/376 ,  H04N17/00 ,  H04N5/232 ,  H04N7/00 ,  H04N13/00

Abstract: Using the same image sensor to capture a two-dimensional (2D) image and three-dimensional (3D) depth measurements for a 3D object. A laser point-scans the surface of the object with light spots, which are detected by a pixel array in the image sensor to generate the 3D depth profile of the object using triangulation. Each row of pixels in the pixel array forms an epipolar line of the corresponding laser scan line. Timestamping provides a correspondence between the pixel location of a captured light spot and the respective scan angle of the laser to remove any ambiguity in triangulation. An Analog-to-Digital Converter (ADC) in the image sensor operates as a Time-to-Digital (TDC) converter to generate timestamps. A timestamp calibration circuit is provided on-board to record the propagation delay of each column of pixels in the pixel array and to provide necessary corrections to the timestamp values generated during 3D depth measurements.

公开(公告)号：US20210088633A1

公开(公告)日：2021-03-25

申请号：US17111888

申请日：2020-12-04

Applicant: Samsung Electronics Co., Ltd.

Inventor： Yibing Michelle WANG

IPC: G01S7/4861 ,  G01S7/487 ,  G01S17/10 ,  G01S17/08 ,  G06F1/04 ,  H03K3/012 ,  H03K3/037 ,  H03K3/356 ,  H03K17/30 ,  H03K19/00

Abstract: A range sensor and a method thereof. The range sensor includes a light source configured to project a sheet of light at an angle within a field of view (FOV); an image sensor offset from the light source; collection optics; and a controller connected to the light source, the image sensor, and the collection optics, and configured to determine a range of a distant object based on direct time-of-flight and determine a range of a near object based on triangulation. The method includes projecting, by a light source, a sheet of light at an angle within an FOV; offsetting an image sensor from the light source; collecting, by collection optics, the sheet of light reflected off objects; and determining, by a controller connected to the light source, the image sensor, and the collection optics, a range of a distant object based on direct time-of-flight and a range of a near object based on triangulation simultaneously.

公开(公告)号：US20210041226A1

公开(公告)日：2021-02-11

申请号：US17076799

申请日：2020-10-21

Applicant: Samsung Electronics Co., Ltd.

Inventor： Yibing Michelle WANG

IPC: G01B11/22 ,  H04N5/225 ,  H04N5/232 ,  G06T7/521 ,  G01B11/25 ,  G03B15/02

Abstract: Using the same image sensor to capture both a two-dimensional (2D) image of a three-dimensional (3D) object and 3D depth measurements for the object. A laser point-scans the surface of the object with light spots, which are detected by a pixel array in the image sensor to generate the 3D depth profile of the object using triangulation. Each row of pixels in the pixel array forms an epipolar line of the corresponding laser scan line. Timestamping provides a correspondence between the pixel location of a captured light spot and the respective scan angle of the laser to remove any ambiguity in triangulation. An Analog-to-Digital Converter (ADC) in the image sensor generates a multi-bit output in the 2D mode and a binary output in the 3D mode to generate timestamps. Strong ambient light is rejected by switching the image sensor to a 3D logarithmic mode from a 3D linear mode.