公开(公告)号：US10574030B2

公开(公告)日：2020-02-25

申请号：US16051547

申请日：2018-08-01

Applicant: HAMAMATSU PHOTONICS K.K.

Inventor： Tadataka Edamura ,  Atsushi Sugiyama ,  Tatsuo Dougakiuchi

IPC: H01S5/14 ,  H01S5/026 ,  G01J3/10 ,  G01J3/42 ,  H01S5/062 ,  H01S5/0625 ,  H01S5/34 ,  G01N21/39

Abstract: An external resonance type laser module includes a quantum cascade laser, a MEMS diffraction grating configured to include a diffraction/reflection portion configured to diffract and reflect light emitted from the quantum cascade laser and return a part of the light to the quantum cascade laser by swinging the diffraction/reflection portion, and a controller configured to control driving of the quantum cascade laser. The controller is configured to pulse-drive the quantum cascade laser such that pulsed light of a second frequency higher than a first frequency at which the diffraction/reflection portion swings is emitted from the quantum cascade laser and a phase of the pulsed light changes each time the diffraction/reflection portion reciprocates m times (m: an integer of 1 or more).

公开(公告)号：US20200049561A1

公开(公告)日：2020-02-13

申请号：US16531272

申请日：2019-08-05

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Sang Kyu KIM

IPC: G01J3/457 ,  G01J3/42 ,  G01J3/10

Abstract: A spectrum measuring apparatus includes a plurality of light sources configured to emit light of different wavelengths onto an object, based on current at various intensities that is applied to each of the plurality of light sources, a photodetector configured to receive light that is one among reflected from, scattered from, and transmitted into the object onto which the light is emitted, and measure an intensity of the received light, and a processor configured to obtain spectrum of the object, based on the measured intensity of the received light.

公开(公告)号：US20200049559A1

公开(公告)日：2020-02-13

申请号：US16658701

申请日：2019-10-21

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Weonkyu KOH ,  Junghyun Park

IPC: G01J3/28 ,  H01L21/02 ,  H01L21/8258 ,  G02B5/28 ,  G01J3/02 ,  G01J3/42

Abstract: An optical spectrometer may include an optical filter including a plurality of filter layers formed on a base substrate. The filter layers may include a perovskite material and at least two filter layers among the plurality of filter layers may include perovskite materials having different composition ratios from each other. The filter layers may show respective band-gap characteristics in different optical wavelength ranges from each other, in an optical absorption spectrum and/or an optical transmission spectrum.

公开(公告)号：US10551248B2

公开(公告)日：2020-02-04

申请号：US15842770

申请日：2017-12-14

Applicant: SEOUL VIOSYS CO., LTD.

Inventor： Seong Tae Jang ,  Stella Park ,  Sung Il Park ,  Ji Ye Song ,  Woong Ki Jeong

IPC: G01J3/42 ,  G02B7/02 ,  G02B6/12 ,  G01J3/28

Abstract: In one aspect, a hyperspectral image measurement device is provided to include: a main body; an illumination module disposed in the main body and including LEDs having different peak wavelengths to irradiate light to a subject; a camera disposed on the main body and receiving light reflected from the subject to acquire an image of the subject; a barrel having a contact surface contacting the subject, the contact surface located to be spaced apart from the illumination module and the camera module by a predetermined distance; and a reference cover located on the contact surface and including a standard reflection layer for reflecting light irradiated from the illumination module toward the camera module.

公开(公告)号：US10551246B2

公开(公告)日：2020-02-04

申请号：US15009300

申请日：2016-01-28

Applicant: AMS Sensors UK Limited

Inventor： Florin Udrea ,  Syed Zeeshan Ali ,  Richard Henry Hopper ,  Julian Gardner ,  Andrea De Luca

IPC: G01J3/42 ,  G01J3/28 ,  H01L23/34 ,  H01L27/144 ,  H01L27/146 ,  H01L27/16 ,  H01L31/02 ,  H01L31/0203 ,  H01L31/0216 ,  H01L31/0232 ,  H01L31/028 ,  H01L31/16 ,  H01L31/18 ,  H01L37/02

Abstract: We disclose an array of Infra-Red (IR) detectors comprising at least one dielectric membrane formed on a semiconductor substrate comprising an etched portion; at least two IR detectors, and at least one patterned layer formed within or on one or both sides of the said dielectric membrane for controlling the IR absorption of at least one of the IR detectors. The patterned layer comprises laterally spaced structures.

公开(公告)号：US20200025618A1

公开(公告)日：2020-01-23

申请号：US16518230

申请日：2019-07-22

Applicant: The Regents of The University of Michigan

Inventor： Nicholas A. KOTOV ,  Theodore B. NORRIS ,  Gong CHENG ,  Wonjin CHOI

IPC: G01J5/08 ,  G01J3/28 ,  G01J3/42

Abstract: Kirigami-based optic devices are provided that include a tunable kirigami-based component comprising a plurality of bridge structures and a plurality of openings therebetween to form a grating structure. At least one surface of the kirigami-based component is micropatterned with a plasmonic material so that the grating is configured to induce or modulate rotational polarity of a beam of electromagnetic radiation as it passes through the plurality of openings. In certain aspects, the micropattern may be a gold herringbone pattern. The kirigami-based component has tunable 3D topography, which when stretched, exhibits polarization rotation angles as high as 80° and ellipticity angles as high as 34° due to the topological equivalency of helix. The kirigami-based components are compact electromagnetic modulators and can be used in THz circular dichroism (TCD) spectroscopy, for example, in a stacked configuration as a modulator, as an encryptor/decryptor for secure communication, in biomedical imaging, and LIDAR systems.

公开(公告)号：US10527493B2

公开(公告)日：2020-01-07

申请号：US16341278

申请日：2017-09-29

Applicant: AIRBUS DEFENCE AND SPACE SAS

Inventor： Frédéric Pasternak

IPC: G01J3/42 ,  G01J3/02 ,  G01J3/04 ,  G01J3/28 ,  B64G1/10 ,  G01J3/22 ,  G02B23/02

Abstract: A spectrophotometric device is disclosed having a plurality of spectral measurement bands including a single telescope and a single spectrophotometer. The plurality of spectral bands is obtained by placing pupillary separating prisms at an entrance pupil of the telescope, and by using spectral band selection filters. Such a device has a lower weight, smaller dimensions, and a lower price. In particular, it may be integrated into a satellite, in particular for a mission to characterize flows of carbon compounds that are produced on the Earth's surface.

公开(公告)号：US10520362B2

公开(公告)日：2019-12-31

申请号：US16347270

申请日：2017-11-13

Applicant: HAMAMATSU PHOTONICS K.K.

Inventor： Makoto Kono

IPC: G01J3/28 ,  G01J3/42 ,  G01J3/02 ,  G01N21/01 ,  G01N21/27

Abstract: A spectroscopic measurement device emits light to a measurement target and measures the measurement light output from the measurement target in accordance with the light emission. A spectroscopic measurement device includes: a first housing having a light shielding property and configured to house a light source that emits light and having a first opening through which the light emitted from the light source passes; a second housing having a light shielding property and having a second opening through which the measurement light passes and configured to house a spectrometer that receives the measurement light that has passed through the second opening; and a junction configured to join the first housing and the second housing such that relative positions of the first housing and the second housing can be changed.

公开(公告)号：US10517484B2

公开(公告)日：2019-12-31

申请号：US16506885

申请日：2019-07-09

Applicant: Omni Medsci, Inc.

Inventor： Mohammed N. Islam

IPC: G01J5/02 ,  A61B5/00 ,  G01N21/3563 ,  G01N33/02 ,  G01N33/15 ,  G01N33/44 ,  G01N33/49 ,  A61B5/145 ,  A61B5/1455 ,  G01J3/02 ,  G01J3/10 ,  G01J3/14 ,  G01J3/28 ,  G01J3/42 ,  G01J3/453 ,  G01N21/35 ,  G01N21/359 ,  G01N21/39 ,  G01N21/88 ,  G01N21/85 ,  H01S3/067 ,  G01N21/95 ,  H01S3/30 ,  G01J3/12 ,  G01M3/38 ,  G01J3/18 ,  H01S3/00

Abstract: A wearable device includes a measurement device to measure a physiological parameter adapted to be placed on a wrist or an ear of a user. A plurality of semiconductor light sources such as light emitting diodes generate corresponding output light having an initial light intensity. A receiver includes spatially separated detectors receiving reflected light from the output lights and coupled to analog to digital converters. The receiver is configured to synchronize to the semiconductor source(s). The measurement device improves signal-to-noise ratio of the output signal by increasing light intensity relative to the initial light intensity and by increasing a pulse rate. Further improvement in signal-to-noise ratio is achieved by using change detection, where the receiver compares the signals with light on and with light off.

公开(公告)号：US20190391072A1

公开(公告)日：2019-12-26

申请号：US16348684

申请日：2017-11-10

Applicant: Mikrowellen Labor Technik AG ,  Milestone S.r.l.

Inventor： Werner Lautenschläger ,  Jens Lautenschläger

IPC: G01N21/31 ,  G01J3/42 ,  G01J3/18 ,  H01J61/06

Abstract: The present invention relates a spectrometer (1) having a lamp (2) that extends in substantially tubular fashion for the purposes of forming a light emission zone (3) that extends in the direction of the tubular extent and between two points to the end of emitting a first light beam (L1) and a second light beam (L2) that have the same origin on the light emission zone (3), a sample container (6) that is arranged in the beam path of the first light beam (L1) for receiving a sample to be measured, a first detection apparatus (D1) that is arranged in the direction of the first light beam (L1) for quantitative and/or qualitative determination of the sample to be measured in the sample container (6) on the basis of an interaction between the sample to be measured and the first light beam (L1), and a second detection apparatus (D2) that is arranged in the direction of the second light beam (L2) for the purposes of referencing the quantitative and/are qualitative determination, on the basis of the second light beam (L2), of the sample to be measured. The invention further relates to a spectrometer (1′) having a lamp (2) that extends in substantially tubular fashion for the purposes of emitting at least two light beams (L1, L3), respectively one sample container (6, 16) arranged in the beam path of each light beam (L1, L3) for the purposes of receiving a sample to be measured, and a detection apparatus (D1, D3) that is arranged in the direction of each light beam (L1, L3) for the purposes of quantitative and/or qualitative determination of the sample to be measured in the respective sample container (6, 16) on the basis of an interaction between the sample to be measured and the respective light beam (L1, L3).