公开(公告)号：US20240230405A1

公开(公告)日：2024-07-11

申请号：US18618187

申请日：2024-03-27

Applicant: HAMAMATSU PHOTONICS K.K.

Inventor： Kei Tabata ,  Masaaki Muto

IPC: G01J3/28 ,  G01J3/02 ,  G01J3/26 ,  G02B5/28 ,  G01J3/12

CPC classification number: G01J3/28 ,  G01J3/0291 ,  G01J3/26 ,  G02B5/284 ,  G01J2003/1252

Abstract: A spectroscopic unit includes a housing, a light incident portion provided in the housing, a Fabry-Perot interference filter arranged in the housing and having a first mirror and a second mirror, a distance between the first mirror and the second mirror being variable. The light incident portion includes an aperture portion in which an aperture is formed and a band pass filter arranged between the aperture and the Fabry-Perot interference filter. The aperture portion is configured so that a value obtained by dividing a length of the aperture in a facing direction of the first mirror and the second mirror by a width of the aperture in a direction perpendicular to the facing direction is equal to or more than 0.5 and the entirety of light passing through the aperture is incident on the band pass filter.

公开(公告)号：US11976970B2

公开(公告)日：2024-05-07

申请号：US17656281

申请日：2022-03-24

Applicant: Japan Display Inc.

Inventor： Toshiyuki Higano ,  Yasushi Tomioka ,  Kazuhiro Nishiyama

IPC: G01J3/02 ,  G01J3/26 ,  G06V40/13

CPC classification number: G01J3/021 ,  G01J3/0208 ,  G01J3/26 ,  G06V40/1318

Abstract: An optical sensor includes at least one interferometer having a pair of semi-transparent mirrors spaced apart and oppositely arranged, and at least one position of the pair of semi-transparent mirrors can be displaced, at least one collimating element overlapping the at least one interferometer, and at least one photoelectric conversion element having sensitivity in the visible and near infrared light bands and receiving light passing through the interferometer and the collimating element.

公开(公告)号：US11971301B2

公开(公告)日：2024-04-30

申请号：US17287157

申请日：2019-08-06

Applicant: HAMAMATSU PHOTONICS K.K.

Inventor： Kei Tabata ,  Masaaki Muto

IPC: G01J3/26 ,  G01J3/02 ,  G01J3/28 ,  G02B5/28 ,  G01J3/12

CPC classification number: G01J3/28 ,  G01J3/0291 ,  G01J3/26 ,  G02B5/284 ,  G01J2003/1252

Abstract: A spectroscopic unit includes a housing, a light incident portion provided in the housing, a Fabry-Perot interference filter arranged in the housing and having a first mirror and a second mirror, a distance between the first mirror and the second mirror being variable. The light incident portion includes an aperture portion in which an aperture is formed and a band pass filter arranged between the aperture and the Fabry-Perot interference filter. The aperture portion is configured so that a value obtained by dividing a length of the aperture in a facing direction of the first mirror and the second mirror by a width of the aperture in a direction perpendicular to the facing direction is equal to or more than 0.5 and the entirety of light passing through the aperture is incident on the band pass filter.

公开(公告)号：US11927395B2

公开(公告)日：2024-03-12

申请号：US17735696

申请日：2022-05-03

Applicant: BRAND SHARED SERVICES, LLC

Inventor： Eduardo Fernando D'Oracio De Almeida ,  Anthony Stephen Harris

IPC: F27D1/14 ,  F23M5/04 ,  G01J3/02 ,  G01J3/26 ,  G01N21/27 ,  G02B6/293 ,  B82Y15/00 ,  B82Y20/00 ,  F27B14/08 ,  G01N21/09 ,  G01N21/85 ,  G02B6/02 ,  G02B6/12 ,  G02B6/36

CPC classification number: F27D1/142 ,  F23M5/04 ,  F27D1/141 ,  G01J3/0218 ,  G01J3/26 ,  G01N21/274 ,  G02B6/29358 ,  G02B6/29359 ,  B82Y15/00 ,  B82Y20/00 ,  F27B2014/0843 ,  G01N21/09 ,  G01N21/8507 ,  G02B6/02033 ,  G02B2006/12159 ,  G02B6/3624

Abstract: Refractory anchoring devices include a main body and a mounting feature for mounting to a thermal vessel. The main body has the shape of two end-to-end Y's forming a central segment, two branch segments extending from each end of the central segment, and an extension segment extending from each of the four branch segments, to collectively form four unenclosed cell openings that are each semi-hexagonal in shape. Some embodiments include four reinforcement segments with each one extending into a respective cell opening, four voids with each one extending through respective adjacent branch and extension segments, an underbody gap formed under the central segment for refractory interlinking between cell openings, and/or a single stud-welding stud for the mounting feature. Refractory anchoring systems and methods include an array of the refractory anchoring devices arranged and mounted so that the unenclosed semi-hexagonal cell openings of adjacent anchoring devices cooperatively form substantially hexagonal cells.

公开(公告)号：US20240019304A1

公开(公告)日：2024-01-18

申请号：US18373532

申请日：2023-09-27

Applicant: HAMAMATSU PHOTONICS K.K.

Inventor： Masaki HIROSE ,  Katsumi SHIBAYAMA ,  Takashi KASAHARA ,  Toshimitsu KAWAI ,  Hiroki OYAMA ,  Yumi TERAMACHI

IPC: G01J3/26 ,  G02B26/00 ,  G01J3/02 ,  G01J5/0802 ,  G01J5/20 ,  G02F1/21 ,  H01L31/02 ,  H01L31/0203 ,  H01L31/0232 ,  H01L31/0304

CPC classification number: G01J3/26 ,  G02B26/00 ,  G01J3/0213 ,  G01J3/0256 ,  G01J3/0291 ,  G01J5/0802 ,  G01J5/20 ,  G02F1/21 ,  H01L31/02005 ,  H01L31/0203 ,  H01L31/02327 ,  H01L31/03046 ,  G01J5/045

Abstract: A light detection device includes: a Fabry-Perot interference filter provided with a light transmission region; a light detector configured to detect light transmitted through the light transmission region; a package having an opening and accommodating the Fabry-Perot interference filter and the light detector; and a light transmitting unit arranged on an inner surface of the package so as to close an opening, the light transmitting unit including a band pass filter configured to transmit light incident on the light transmission region. When viewed from a direction parallel to the line, an outer edge of the Fabry-Perot interference filter is positioned outside an outer edge of the opening, and an outer edge of the light transmitting unit is positioned outside the outer edge of the Fabry-Perot interference filter.

公开(公告)号：US11867564B2

公开(公告)日：2024-01-09

申请号：US17658567

申请日：2022-04-08

Applicant: Rebellion Photonics, Inc.

Inventor： Robert Timothy Kester ,  Nathan Adrian Hagen

IPC: G01J5/53 ,  H04N5/33 ,  H04N3/09 ,  G01J3/02 ,  G01J3/36 ,  G01J5/00 ,  G01J3/26 ,  G01J3/28 ,  G01J5/20 ,  G01J5/0806 ,  G01J5/0802 ,  G01J5/0804 ,  H04N23/11 ,  H04N25/67 ,  H04N25/671 ,  H04N25/673 ,  G01N21/3504 ,  G01J3/12 ,  G01N21/17 ,  G01J5/80

CPC classification number: G01J5/53 ,  G01J3/0208 ,  G01J3/0232 ,  G01J3/0256 ,  G01J3/0297 ,  G01J3/12 ,  G01J3/26 ,  G01J3/28 ,  G01J3/2823 ,  G01J3/36 ,  G01J5/0014 ,  G01J5/0802 ,  G01J5/0804 ,  G01J5/0806 ,  G01J5/20 ,  G01N21/3504 ,  H04N3/09 ,  H04N5/33 ,  H04N23/11 ,  H04N25/67 ,  H04N25/671 ,  H04N25/673 ,  G01J5/80 ,  G01J2003/283 ,  G01J2003/2826 ,  G01J2005/0077 ,  G01N2021/1793 ,  G01N2021/3531 ,  G01N2201/068 ,  G01N2201/06106 ,  G01N2201/127

Abstract: Various embodiments disclosed herein describe a divided-aperture infrared spectral imaging (DAISI) system that is adapted to acquire multiple IR images of a scene with a single-shot (also referred to as a snapshot). The plurality of acquired images having different wavelength compositions that are obtained generally simultaneously. The system includes at least two optical channels that are spatially and spectrally different from one another. Each of the at least two optical channels are configured to transfer IR radiation incident on the optical system towards an optical FPA unit comprising at least two detector arrays disposed in the focal plane of two corresponding focusing lenses. The system further comprises at least one temperature reference source or surface that is used to dynamically calibrate the two detector arrays and compensate for a temperature difference between the two detector arrays.

公开(公告)号：US11796391B2

公开(公告)日：2023-10-24

申请号：US17634280

申请日：2020-10-06

Applicant: HAMAMATSU PHOTONICS K.K.

Inventor： Takashi Kasahara ,  Katsumi Shibayama ,  Kei Tabata ,  Masaki Hirose ,  Hiroki Oyama ,  Yumi Kuramoto

IPC: G01J3/02 ,  G01J3/26 ,  G01J3/45 ,  G02B26/00 ,  G02B5/28

CPC classification number: G01J3/26 ,  G01J3/0297 ,  G01J3/45 ,  G02B5/281 ,  G02B26/001

Abstract: A light detection device includes: a first support part disposed on a mounting surface of the wiring board; a Fabry-Perot interference filter disposed in a first support region of the first support part; and a temperature detector, wherein the temperature detector is disposed on the mounting surface such that at least a part of the temperature detector overlaps a part of the Fabry-Perot interference filter when seen in a first direction perpendicular to the mounting surface and such that at least a part of the temperature detector overlaps a part of the first support part when seen in a second direction in which the first support part and the light detector are aligned with each other, and wherein a first distance between the temperature detector and the first support part in the second direction is smaller than a first width of the first support region in the second direction.

公开(公告)号：US11774744B2

公开(公告)日：2023-10-03

申请号：US16953584

申请日：2020-11-20

Applicant: SEIKO EPSON CORPORATION

Inventor： Nozomu Hirokubo

IPC: G02B26/00 ,  G02B5/28 ,  G01J3/02 ,  G01J3/26

CPC classification number: G02B26/007 ,  G01J3/027 ,  G01J3/26 ,  G02B5/286 ,  G02B26/001

Abstract: A spectral apparatus includes: an interference filter that includes a pair of reflection films and outputs light having a spectral wavelength corresponding to a gap size between the pair of reflection films; a gap sensor that detects the gap size; and one or more processors configured to detect an error based on a difference between the spectral wavelength corresponding to the gap size detected by the gap sensor and a target wavelength of light to be output from the interference filter. The one or more processors detect an error when an integration value obtained by integrating, on a time axis, an absolute value of the difference exceeds a threshold value.

公开(公告)号：US11768110B2

公开(公告)日：2023-09-26

申请号：US18113311

申请日：2023-02-23

Applicant: Project Canary, PBC

Inventor： Anna Ailene Scott ,  Yan Azdoud ,  Christopher Daniel Kelley

IPC: G01J3/26 ,  G01N33/00 ,  G02B26/00 ,  G01N15/14

CPC classification number: G01J3/26 ,  G01N15/1404 ,  G01N15/1436 ,  G01N33/0006 ,  G01N33/0031 ,  G02B26/001

Abstract: In an illustrative configuration, a method for monitoring air quality is disclosed. The method includes accepting analyte gas into a cell and reflecting light rays into the analyte gas repeatedly across the cell into at least one sensor. The light scattered by particulate matter in the analyte gas and amount of spectra-absorption due to presence of a gaseous chemical is then measured. Based on the determined amount of spectra-absorption and the measured scattered light the gaseous chemical is then measured.

公开(公告)号：US11754445B2

公开(公告)日：2023-09-12

申请号：US17277642

申请日：2019-10-22

Applicant: Robert Bosch GmbH

Inventor： Ralf Noltemeyer ,  Benedikt Stein ,  Christian Huber ,  Christoph Schelling ,  Christoph Daniel Kraemmer ,  Reinhold Roedel

IPC: G01J3/02 ,  G01J3/26 ,  G01J3/453

CPC classification number: G01J3/027 ,  G01J3/0229 ,  G01J3/26 ,  G01J3/4535

Abstract: The disclosure relates to an interferometer element for use in a spectrometer which includes a micromechanical Fabry-Perot filter element, which has at least a first mirror element, a second mirror element, and a third mirror element. Each of the first mirror element, the second mirror element, and the third mirror element are arranged in series in an optical path of the interferometer element, and at least one of a first distance between the first and second mirror elements, and a second distance between the second and third mirror elements is modifiable.