公开(公告)号：US20210389184A1

公开(公告)日：2021-12-16

申请号：US17290851

申请日：2019-09-20

Applicant: SONY SEMICONDUCTOR SOLUTIONS CORPORATION

Inventor： Yoshikazu KONDO

IPC: G01J4/04 ,  H01L27/146 ,  G02B5/30

Abstract: A light receiving device includes a plurality of photoelectric conversion element units 10A1, 10A2, 10A3, and 10A4 each composed of four types of photoelectric conversion elements including four types of polarization elements 501, 502, 503, and 504 and further includes a polarized component measurement unit 91 and a polarized component calculation unit 92, wherein the polarized component measurement unit 91 obtains, for example, a first polarized component and a third polarized component on the basis of output signals from a first photoelectric conversion element and a third photoelectric conversion element, and the polarized component calculation unit 92 calculates, for example, polarized components of a third polarization azimuth and a first polarization azimuth in the first polarized component and the third polarized component on the basis of the obtained third polarized component and the first polarized component.

公开(公告)号：US11162976B2

公开(公告)日：2021-11-02

申请号：US17266568

申请日：2019-08-02

Applicant: Norik Janunts

Inventor： Norik Janunts

IPC: G01Q60/22 ,  G01J1/04 ,  G01J1/42 ,  G02B6/42 ,  G01J4/04 ,  G01Q70/06 ,  G01J3/02

Abstract: The invention is directed to an arrangement for detecting the intensity distribution of components of the electromagnetic field in beams of radiation. The object of the invention is met, according to the invention, in that a high-resolution two-dimensional intensity sensor array and a field vector detector array comprising different regions with individual detector structures for two transverse and longitudinal field vector components Ex, Ey, Ez are combined, wherein the detector structures are formed as nanostructures, metallic jacket-shaped tips with different apices, for utilization of localized plasmon resonance (LPR) of the individual detector structures and localized surface plasmons (LSP) excited through LPR for a polarization selection of the field distribution according to field vector components Ex, Ey, Ez and transmission thereof to associated sensor elements by means of surface plasmon polaritons (SPP) and wave guiding (WGM).

公开(公告)号：US11156755B2

公开(公告)日：2021-10-26

申请号：US16368111

申请日：2019-03-28

Applicant: Facebook Technologies, LLC

Inventor： Kieran Tobias Levin ,  Evan Mark Richards

IPC: G02B5/30 ,  G02B27/28 ,  G01J4/04 ,  G02B7/00

Abstract: An alignment apparatus for a polarization device includes a polarizer subassembly for polarizing a light beam, a rotary support for rotatably supporting the polarization device in a path of the light beam downstream of the polarizer subassembly, an analyzer subassembly downstream of the rotary support for receiving the light beam propagated through the polarization device, and a photodetector array disposed downstream of the analyzer subassembly and extending along the width dimension of the light beam for detecting the light beam propagated through the analyzer subassembly. At least one of the polarizer or analyzer subassemblies includes a spatially variant polarization element having a polarization property varying along the width dimension of the light beam.

公开(公告)号：US20210310862A1

公开(公告)日：2021-10-07

申请号：US17264026

申请日：2019-06-12

Applicant: V TECHNOLOGY CO., LTD.

Inventor： Michinobu Mizumura

IPC: G01J1/42 ,  G01J4/04 ,  G01J1/04

Abstract: A laser energy measuring device with which laser light radiated onto a substrate can be evaluated accurately. The laser energy measuring device includes: inside or outside an illuminating optical system, a first beam splitter which reflects laser light by any one of P-polarized reflection and S-polarized reflection; a second beam splitter which performs the other of P-polarized reflection and S-polarized reflection with respect to first reflected light reflected by the first beam splitter; a first measuring unit which measures energy of second reflected light reflected by the second beam splitter; and a second measuring unit which measures energy of transmitted light that has been transmitted through the second beam splitter.

公开(公告)号：US20210295723A1

公开(公告)日：2021-09-23

申请号：US16822999

申请日：2020-03-18

Applicant: Rosemount Aerospace Inc.

Inventor： Robert Rutkiewicz ,  Joseph T. Pesik

IPC: G08G5/06 ,  G08G5/04 ,  B64F1/00 ,  B64D47/08 ,  G06K9/00 ,  G06K9/62 ,  G01J4/04

Abstract: Apparatus and associated methods relate to ranging object(s) nearby an aircraft using triangulation. A light projector mounted at a projector location on the aircraft projects pulses of polarized light onto the scene external to the aircraft. The projected pulses of polarized light are polarized in a first polarization state. A camera mounted at a camera location on the aircraft has a shutter synchronized to the projector output pulse and receives a portion of the projected pulses of polarized light reflected by the object(s) in the scene and polarized at a second polarization state orthogonal to the first polarization state. Location(s) and/or range(s) of the object(s) is calculated, based on the projector location, the camera location, and pixel location(s) upon which the portion of light is imaged.

公开(公告)号：US20210211619A1

公开(公告)日：2021-07-08

申请号：US17059353

申请日：2019-03-13

Applicant: SONY CORPORATION

Inventor： Hajime MIHARA ,  Shun KAIZU ,  Teppei KURITA ,  Yasutaka HIRASAWA

IPC: H04N9/31 ,  G01J4/04 ,  G01J3/447 ,  G02B27/28

Abstract: An information generation unit 30 acquires, from a polarization imaging unit 20, observation values in which polarization directions are at least three or more directions (m≥3). A noise amount calculation unit 35-1 calculates an amount of noise on the basis of an observation value in a first polarization direction. Similarly, noise amount calculation units 35-2 to 35-m calculate amounts of noise on the basis of observation values in second to m-th polarization directions. A polarization model estimation unit 36 estimates a polarization model by using the observation values for the respective polarization directions and the amounts of noise calculated by the noise amount calculation units 35-1 to 35-m. Thus, it is possible to calculate a polarization model that is robust against noise.

公开(公告)号：US11054304B2

公开(公告)日：2021-07-06

申请号：US15313173

申请日：2015-06-17

Applicant: Sony Corporation

Inventor： Ken Ozawa

IPC: H01L27/00 ,  G01J1/42 ,  G01J3/28 ,  G01J4/04 ,  G01J3/02 ,  G01J3/453 ,  A61B5/1455 ,  G01N21/31 ,  A61B5/00 ,  G01N21/359 ,  G01J1/04 ,  G01N21/35 ,  G01J4/00 ,  A61B5/145

Abstract: An imaging device and method are provided. Light from an object is provided as a plurality of sets of light beams to a phase difference array having a plurality of elements. The phase difference array is configured to provide different optical paths for light included within at least some of a plurality of sets of light beams. The light from the phase difference array is received at an imaging element array. The imaging element array includes a plurality of imaging elements. Information obtained from hyperspectral imaging data based on output signals of the imaging element array can be displayed.

公开(公告)号：US10921191B2

公开(公告)日：2021-02-16

申请号：US16798414

申请日：2020-02-23

Applicant: Wuhan Institute of Physics and Mathematics, Chinese Academy of Science

Inventor： Yi Zhang ,  Sihong Gu ,  Yuan Tian ,  Jiehua Chen

IPC: G01J4/00 ,  G01J4/04 ,  G02B27/28 ,  G01R33/032

Abstract: An atomic sensing method, the method including providing a polarization converter; emitting a linearly polarized polychromatic laser beam to the polarization converter; converting, by the polarization converter, the linearly polarized polychromatic laser beam into a circularly-polarized laser beam and a linearly-polarized laser beam; combining the circularly-polarized laser beam and the linearly-polarized laser beam thereby yielding a multi-polarization polychromatic laser beam; transmitting the multi-polarization polychromatic laser beam to an atomic vapor cell comprising alkali metal atoms, polarizing the multi-polarization polychromatic laser beam into two laser beams, and detecting the two laser beams by two photodetectors, respectively.

公开(公告)号：US10883880B2

公开(公告)日：2021-01-05

申请号：US16653379

申请日：2019-10-15

Applicant: Konica Minolta, Inc.

Inventor： Osamu Masuda ,  Kazuhiko Hirabayashi ,  Hirofumi Tanaka ,  Koji Nakashima

IPC: G01J4/04 ,  G01N21/21 ,  G02B5/30 ,  G01M11/00 ,  G02F1/1335 ,  G01M11/02

Abstract: An optical characteristic evaluation method evaluates unevenness of an optical characteristic in an optical film based on analysis of a polarized state of light transmitting through an optical film and an analyzer. The method includes the following, measuring a phase difference and an orientation angle in a plurality of positions; and quantifying and evaluating the unevenness of the optical characteristic based on a parameter of a vector of output light calculated by a formula 1 using a vector showing a polarized state of input light and a matrix showing a polarizing characteristic of the optical film and the analyzer. The formula 1 is as follows, formula 1: F2=M×F1, F1: Stokes vector or Jones vector of input light, F2: Stokes vector or Jones vector of output light, M: Mueller matrix or Jones matrix of the optical film as the evaluation target and the analyzer.

公开(公告)号：US10823617B2

公开(公告)日：2020-11-03

申请号：US16122802

申请日：2018-09-05

Applicant: Datalogic IP Tech S.r.l.

Inventor： Adriano Sassone ,  Gabriele Tinti ,  Kurt Vonmetz

IPC: G01J4/04

Abstract: The disclosure relates to a light sensor system for determining the proximity of electronic devices by analyzing the polarization of detected light. The light sensor system includes a plurality of light sensors each including polarizers, such as linear plane polarizers and/or circular polarizers. The filtered light sensors are each operable to detect light passing through the respective polarizers. The light sensor system further includes an unfiltered light sensor operable to detect the presence of light. The light sensor system includes a processor in operable communication with each of the light sensors, the processor operable to determine whether the detected light is polarized or non-polarized based on the accumulated data of the various polarized light sensors and unfiltered light sensor.