公开(公告)号：US12074184B2

公开(公告)日：2024-08-27

申请号：US17349718

申请日：2021-06-16

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Atsushi Ishikawa ,  Yasuhisa Inada

IPC: H04L27/14 ,  G01J3/26 ,  G01J3/28 ,  G01J3/36 ,  G02B5/20 ,  G02B5/28 ,  H01L27/146 ,  H04N25/13

CPC classification number: H01L27/1462 ,  G01J3/26 ,  G01J3/2823 ,  G01J3/36 ,  G02B5/201 ,  G02B5/28 ,  H01L27/14627 ,  H01L27/14645 ,  H04N25/135

Abstract: A light detecting device includes: a filter array including filters two-dimensionally arrayed and an image sensor including light detection elements. Each of first and second filters included in the filters includes a first reflective layer, a second reflective layer, and an intermediate layer therebetween and has a resonance structure having resonant modes whose orders are different from each other. A refractive index and/or a thickness of the intermediate layer in the first and second filters is different depending on the filter. A transmission spectrum of each of the first and second filters has local maximum value of transmittance at each of wavelengths included in a wavelength region, and the wavelengths correspond to the resonant modes, respectively. The image sensor is disposed at a position where the image senor receives passing light that passes through the filter array, to detect components in the wavelengths included in the passing light.

公开(公告)号：US11965779B2

公开(公告)日：2024-04-23

申请号：US17763957

申请日：2020-10-28

Applicant: TimeGate Instruments Oy

Inventor： Lauri Kurki ,  Ilkka Alasaarela ,  Jussi Tenhunen

IPC: G01J3/44 ,  G01J3/02 ,  G01J3/14 ,  G01J3/18 ,  G01J3/26

CPC classification number: G01J3/44 ,  G01J3/0208 ,  G01J3/0218 ,  G01J3/0297 ,  G01J3/14 ,  G01J3/1895 ,  G01J3/26 ,  G01J2003/262

Abstract: An apparatus for measuring time-resolved optical spectrum includes a light source, a sensor for collecting, forming, manipulating and measuring the intensity of the optical radiation, and a controller coupled to the light source and sensor. The sensor includes at least one optical delay element to provide a time delay to a first portion of the optical radiation. The sensor arrangement further includes an optical spectral disperser to split the delayed first portion and the second portion of the optical radiation into dispersed radiation having a plurality of wavelengths, and a sensor element configured to receive each wavelength of the dispersed radiation on a different spatial region, and measure the light intensity associated with each wavelength of the dispersed radiation. The controller collects the light intensity associated with each wavelength of the dispersed radiation measured by the sensor element to form a time-resolved optical spectrum.

公开(公告)号：US20240011831A1

公开(公告)日：2024-01-11

申请号：US18371902

申请日：2023-09-22

Applicant: Nanjing Kanshijie Intelligent Technology Co., LTD

Inventor： Qian MA ,  Jin YAO ,  Yuan WANG

IPC: G01J3/26 ,  G01J3/28

CPC classification number: G01J3/26 ,  G01J3/2823 ,  G01J3/2803 ,  G01J2003/2813 ,  G01J2003/2809

Abstract: A Fabry-Perot cavity array and a spectrum detector, where the Fabry-Perot cavity array includes a first element having a first step and a second element having a second step, the first step and the second step are a two-dimensional step structure; a first step side of the first element is arranged opposite to a second step side of the second element, and a step height change direction of the first step is different from a step height change direction of the second step; a step surface of the first step and a step surface of the second step are plated with a reflective film. By fitting two elements having a two-dimensional step structure, a Fabry-Perot cavity array having a three-dimensional step structure is formed, and it is simple in structure and easy to be processed and implemented.

公开(公告)号：US11828650B2

公开(公告)日：2023-11-28

申请号：US17159900

申请日：2021-01-27

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Jineun Kim ,  Younggeun Roh ,  Yeonsang Park ,  Hyochul Kim ,  Moonil Jung

IPC: G01J3/18 ,  G01J3/45 ,  G02B5/28 ,  G01J3/26 ,  G02B5/20 ,  G01J3/28 ,  G01J3/02 ,  H01L27/146 ,  H01L31/0216 ,  G01J3/12 ,  G02F1/21

CPC classification number: G01J3/1895 ,  G01J3/021 ,  G01J3/0205 ,  G01J3/0256 ,  G01J3/0297 ,  G01J3/26 ,  G01J3/2823 ,  G01J3/45 ,  G02B5/201 ,  G02B5/28 ,  G02B5/288 ,  G01J2003/1226 ,  G01J2003/2826 ,  G02F1/213 ,  H01L27/14621 ,  H01L31/02165

Abstract: A light filter and a spectrometer including the light filter are disclosed. The light filter includes a plurality of filter units having different resonance wavelengths, wherein each of the plurality of filter units includes a cavity layer configured to output light of constructive interference, a Bragg reflection layer provided on a first surface of the cavity layer, and a pattern reflection layer provided on a second surface of the cavity layer opposite to the first surface and configured to cause guided mode resonance of light incident on the pattern reflection layer, the pattern reflection layer including a plurality of reflection structures that are periodically arranged.

公开(公告)号：US11802794B2

公开(公告)日：2023-10-31

申请号：US17814983

申请日：2022-07-26

Applicant: Verifood, Ltd.

Inventor： Damian Goldring ,  Dror Sharon

IPC: G01J3/28 ,  G01J3/02 ,  G01J3/36 ,  G01J3/26 ,  G01N21/25 ,  G01J3/12

CPC classification number: G01J3/0256 ,  G01J3/0208 ,  G01J3/26 ,  G01J3/2803 ,  G01J3/36 ,  G01N21/255 ,  G01J2003/1226

Abstract: A compact spectrometer is disclosed that is suitable for use in mobile devices such as cellular telephones. In preferred embodiments, the spectrometer comprises a filter, at least one Fourier transform focusing element, a micro-lens array, and a detector, but does not use any dispersive elements. Methods for using the spectrometer as an end-user device for performing on-site determinations of food quality, in particular, by comparison with an updatable database accessible by all users of the device, are also disclosed.

公开(公告)号：US20230324226A1

公开(公告)日：2023-10-12

申请号：US18208056

申请日：2023-06-09

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 ,  G01N33/0031 ,  G01N33/0006 ,  G02B26/001 ,  G01N15/1404 ,  G01N15/1436

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：US20230304861A1

公开(公告)日：2023-09-28

申请号：US17778387

申请日：2021-06-21

Applicant: ams Sensors Singapore Pte. Ltd.

Inventor： Peter Roentgen ,  Kotaro Ishizaki ,  Javier Miguel Sánchez

IPC: G01J3/26 ,  G01J3/36 ,  G01J3/02 ,  G01J3/51

CPC classification number: G01J3/26 ,  G01J3/36 ,  G01J3/0259 ,  G01J3/0294 ,  G01J3/51

Abstract: An optical sensor. The optical sensor comprises a substrate, a Fabry-Perot interferometer, and first and second photodetectors. The Fabry-Perot interferometer comprises a first mirror and a second mirror, and is mounted on the substrate such that light is transmitted through the interferometer to the substrate. The first and second photodetectors are configured to detect light transmitted through the etalon and the substrate. The first photodetector is sensitive to a first wavelength range, and the second photodetector is sensitive to a second wavelength range, and wherein the first and second wavelength ranges each correspond to a different mode of the interferometer.

公开(公告)号：US20230268362A1

公开(公告)日：2023-08-24

申请号：US18310769

申请日：2023-05-02

Applicant: VIAVI Solutions Inc.

Inventor： Georg J. OCKENFUSS

IPC: H01L27/146 ,  H01L31/0216 ,  G01J3/51 ,  G01J3/02 ,  G01J3/26 ,  G01J3/28 ,  G01J3/36 ,  G02B5/28 ,  H01L33/60 ,  H01L33/46 ,  H10K50/856 ,  H10K59/38

CPC classification number: H01L27/14621 ,  H01L31/02162 ,  G01J3/51 ,  G01J3/513 ,  G01J3/0208 ,  G01J3/26 ,  G01J3/2803 ,  G01J3/36 ,  G02B5/286 ,  G02B5/288 ,  H01L33/60 ,  H01L33/46 ,  H10K50/856 ,  H10K59/38 ,  H01L27/1462 ,  H01L27/14627 ,  H01L27/14629 ,  H01L27/1464 ,  H01L27/14643 ,  H01L27/14685 ,  G01J2003/2826 ,  G01J2003/2806

Abstract: A device may include a multispectral filter array disposed on the substrate. The multispectral filter array may include a first metal mirror disposed on the substrate. The multispectral filter may include a spacer disposed on the first metal mirror. The spacer may include a set of layers. The spacer may include a second metal mirror disposed on the spacer. The second metal mirror may be aligned with two or more sensor elements of a set of sensor elements.

公开(公告)号：US11733095B2

公开(公告)日：2023-08-22

申请号：US17302217

申请日：2021-04-27

Applicant: IMEC

Inventor： Nicolaas Tack ,  Andy Lambrechts ,  Luc Haspeslagh

IPC: G01J3/28 ,  H04N23/11 ,  H04N25/75 ,  G01J3/26 ,  G01J3/12

CPC classification number: G01J3/2823 ,  G01J3/12 ,  G01J3/26 ,  G01J3/2803 ,  H04N23/11 ,  H04N25/75 ,  G01J2003/1226 ,  G01J2003/265 ,  G01J2003/2806 ,  G01J2003/2826

Abstract: A method for calibrating an image sensor begins by illuminating a portion of the image sensor with an input light spectrum, where the input light spectrum includes light of known wavelength and intensity. The method continues by sampling an output for each optical sensor of the image sensor, where each optical sensor is associated with one or more optical filters and where each optical filter being associated with a group of optical filters of a plurality of groups of optical filters. Each optical filter of a group of optical filters is configured to pass light in a different wavelength range and at least some optical filters in different groups of the plurality of groups of optical filters are configured to pass light in substantially a same wavelength range. The method then continues by comparing a sampled output for each optical sensor of the plurality of optical sensors with an expected output and generating a calibration factor for each of at least a subset of the plurality of optical sensors and storing the generated calibration factors in memory.

公开(公告)号：US11698303B2

公开(公告)日：2023-07-11

申请号：US16234641

申请日：2018-12-28

Applicant: Spectral Engines Oy

Inventor： Jarkko Antila ,  Uula Kantojärvi

IPC: G01J3/26 ,  G01N21/31 ,  G01J3/45

CPC classification number: G01J3/26 ,  G01J3/45 ,  G01N21/314 ,  G01N2021/3129 ,  G01N2201/1293

Abstract: According to an example aspect of the present invention, there is provided a method for analysing a chemical composition of a target, the method comprising placing an electrically tunable Fabry-Perot interferometer in a path of radiation emitted by a radiation source, and detecting the radiation, which has passed the Fabry-Perot interferometer and which has passed or was reflected by the target, by means of a detector, and wherein detection is made such that multiple pass bands are allowed to be detected simultaneously.