公开(公告)号：US20220316943A1

公开(公告)日：2022-10-06

申请号：US17838745

申请日：2022-06-13

Applicant: STMICROELECTRONICS (RESEARCH & DEVELOPMENT) LIMITED

Inventor： Neale Dutton ,  John Kevin Moore

IPC: G01J1/44 ,  G01J1/02 ,  G01J1/04 ,  H01L31/02

Abstract: An optical sensor includes at least one photodetector configured to be reverse biased at a voltage exceeding a breakdown voltage by an excess bias voltage. At least one control unit is configured to adjust the reverse bias of the at least one photodetector. A method of operating an optical sensor is also disclosed.

公开(公告)号：US20220283024A1

公开(公告)日：2022-09-08

申请号：US17471851

申请日：2021-09-10

Applicant: Apple Inc.

Inventor： Jason B. Neevel ,  Christopher S. Tomasetta ,  Jonathan M. Lee ,  Ekaterina Pease ,  Nicholas Merz ,  Daniel Jarvis ,  Michael B. Wittenberg ,  Jared P. Ostdiek ,  Rasamy Phouthavong ,  David A. Pakula ,  Richard H. Koch ,  Marwan Rammah ,  Ian A. Spraggs ,  Laura M. Burke

IPC: G01J1/42 ,  G01J1/02 ,  G01J1/04

Abstract: A portable electronic device includes a housing, a front cover defining a front side of the portable electronic device, a display stack below the front cover and comprising a plurality of display layers configured to produce a graphical output in a display region of the display stack, the graphical output visible through the front cover, and a light sensor module positioned at least partially within the housing and coupled to the display stack in the display region. The light sensor module may be configured to receive ambient light passing through the front cover and through the plurality of display layers and, while a blanking interval is positioned over the light sensor module, produce an output corresponding to the received ambient light, the portable electronic device configured to determine an ambient light value based at least in part on the output from the light sensor module.

公开(公告)号：US11435227B2

公开(公告)日：2022-09-06

申请号：US17227926

申请日：2021-04-12

Applicant: Samsung Electronics Co., Ltd.

Inventor： Dong-Seok Leem ,  Gae Hwang Lee ,  Yong Wan Jin ,  Tae Yon Lee

IPC: G01J1/42 ,  H01L27/146 ,  G01J1/04 ,  G06V10/143 ,  G06V40/19 ,  G01J1/44 ,  H01L27/30

Abstract: A combination sensor may include a first infrared light sensor and a second infrared light sensor. The first infrared light sensor may be configured to sense light in a first wavelength within an infrared wavelength spectrum. The second infrared light sensor may be configured to sense light in a second wavelength that is different from the first wavelength within the infrared wavelength spectrum. The first infrared light sensor and the second infrared light sensor may be stacked in relation to each other.

公开(公告)号：US11422028B2

公开(公告)日：2022-08-23

申请号：US17288361

申请日：2019-10-24

Applicant: UNM RAINFOREST INNOVATIONS

Inventor： Hamed Pourbeyram ,  Arash Mafi

IPC: G01J1/44 ,  G01J1/04

Abstract: A method and system for determining a photon statistics of a light source using an unbalanced beam-splitter is disclosed. The method includes collecting data for photon counts for a first output path and a second output path by a first detector and a second detector, respectively, for a first time period, a first power level, and a first characteristic and collecting data for photon counts for the first output path and the second output path by the first detector and the second detector, respectively, for a second time period, a second power level, and a second characteristic; and processing outputs of the first and the second detector to determine the photon statistics.

公开(公告)号：US20220252449A1

公开(公告)日：2022-08-11

申请号：US17584859

申请日：2022-01-26

Applicant: TDK CORPORATION

Inventor： Naomichi DEGAWA

IPC: G01J1/42 ,  G01J1/04

Abstract: Provided are a light detection element, a receiving device, and a light sensor device. The light detection element includes a magnetic element that includes a first ferromagnetic layer, a second ferromagnetic layer, and a spacer layer interposed between the first ferromagnetic layer and the second ferromagnetic layer, wherein the first ferromagnetic layer is irradiated with light in a direction intersecting a stacking direction of the magnetic element.

公开(公告)号：US20220242094A1

公开(公告)日：2022-08-04

申请号：US17723422

申请日：2022-04-18

Applicant: FACE INTERNATIONAL CORPORATION

Inventor： Clark D. BOYD ,  Bradbury R Face ,  Jeffrey D Shepard

IPC: B32B17/00 ,  G02B5/02 ,  H01L31/0232 ,  G02B5/20 ,  H01L31/0216 ,  B32B27/06 ,  G02F1/01 ,  G02F1/19 ,  B32B7/02 ,  G02F1/00 ,  G01J1/04 ,  G02B27/10 ,  G02B1/10 ,  H02S40/00 ,  G06F1/16

Abstract: A system and method are provided for forming body structures including energy filters/shutter components, including energy/light directing/scattering layers that are actively electrically switchable. The filters or components are operable between at least a first mode in which the layers, and thus the presentation of the shutter components, appear substantially transparent when viewed from an energy/light incident side, and a second mode in which the layers, and thus the presentation of the energy filters or shutter components, appear opaque to the incident energy impinging on the energy incident side. The differing modes are selectable by electrically energizing, differentially energizing and/or de-energizing electric fields in a vicinity of the energy scattering layers, including electric fields generated between a paid of transparent electrodes sandwiching an energy scattering layer. Refractive indices of transparent particles, and the transparent matrices in which the particles are fixed, are tunable according to the applied electric fields.

公开(公告)号：US20220214214A1

公开(公告)日：2022-07-07

申请号：US17705204

申请日：2022-03-25

Applicant: PsiQuantum Corp.

Inventor： Faraz Najafi ,  Eric Dudley ,  Mark Thompson

IPC: G01J1/44 ,  G01J1/04

Abstract: A method of resolving a number of photons received by a photon detector includes optically coupling a waveguide to a superconducting wire having alternating narrow and wide portions; electrically coupling the superconducting wire to a current source; and electrically coupling an electrical contact in parallel with the superconducting wire. The electrical contact has a resistance less than a resistance of the superconducting wire while at least one narrow portion of the superconducting wire is in a non-superconducting state. The method includes providing to the superconducting wire, from the current source, a current configured to maintain the superconducting wire in a superconducting state in the absence of incident photons; receiving one or more photons via the waveguide; measuring an electrical property of the superconducting wire, proportional to a number of photons incident on the superconducting wire; and determining the number of received photons based on the electrical property.

公开(公告)号：US20220196468A1

公开(公告)日：2022-06-23

申请号：US17602323

申请日：2020-03-02

Applicant: Precitec GmbH & Co. KG

Inventor： David Blázquez Sánchez

IPC: G01J1/04 ,  G02B26/08 ,  G01J1/42 ,  B23K26/046 ,  B23K26/70

Abstract: A device for determining a focal position of a laser beam, in particular a processing laser beam in a laser processing head, has an optical decoupling element for decoupling a partial beam from a beam path of the laser beam, a detector for detecting at least one beam parameter of the partial beam, and at least one optical element with an adjustable focal length, which is arranged in a region of the beam path of the partial beam between the optical decoupling element and the detector. Also disclosed is a laser processing head which includes a device of this type, as well as a method for determining a focal position of a laser beam.

公开(公告)号：US11366399B2

公开(公告)日：2022-06-21

申请号：US16765364

申请日：2018-10-26

Applicant: ASML Netherlands B.V.

Inventor： Hendrikus Robertus Marie Van Greevenbroek

IPC: G03F7/00 ,  G01J1/04 ,  G01J1/42 ,  G02B27/10 ,  H01S3/00 ,  G03F7/20 ,  H05G2/00

Abstract: A laser beam monitoring system configured to monitor an attribute of an incident laser beam (24), the laser beam monitoring system comprising a beam separating element (30) and a plurality of sensors (34a-34d), wherein the beam separating element is configured to form a plurality of sub-beams (24a-24d) from the incident laser beam (24), a first sub-beam being directed towards a first sensor of the plurality of sensors and a second sub-beam being directed towards a second sensor of the plurality of sensors, wherein relative intensities of the first and second sub-beams are determined by a spatial position at which the incident laser beam is incident upon the beam separating element.

公开(公告)号：US20220187132A1

公开(公告)日：2022-06-16

申请号：US16973338

申请日：2020-07-01

Applicant: CARRIER CORPORATION

Inventor： Dayne Plemmons ,  Nathan Herman

IPC: G01J5/00 ,  G01J5/0831 ,  G01J5/10 ,  G01J1/04

Abstract: A detection system includes a photodetector, a spatial light modulator (SLM) device optically coupled to the photodetector, and a controller. The controller is operatively connected to the SLM device and is disposed in communication with the photodetector and a memory. The memory has instructions recorded on the memory that cause the controller to communicate a SLM pattern sequence to the SLM device, modulate illumination incident on the SLM device according to the SLM pattern sequence to generate an illumination pulse sequence, and receive an intensity-time profile from the photodetector corresponding to the SLM pattern sequence. The instructions also cause the controller to signal, with spatial specificity, presence of flame or gas when the intensity-time profile indicates that flame or gas is present within a field of view of the detection system. Detection methods and computer program products are also described.