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1. 发明申请

US20230127013A1 Spectroscopy Source-Detector Link Quality Analyzer 有权
公开(公告)号：US20230127013A1
公开(公告)日：2023-04-27
申请号：US18048990
申请日：2022-10-24
申请人： The Johns Hopkins University
发明人： Griffin W. Milsap , Clara A. Scholl , Marisel Villafane-Delgado , Brian S. Robinson , Margaret C. Thompson
IPC分类号： G01J3/433 , G01J3/36
摘要： A spectroscopy system includes a plurality of light sources, a plurality of detectors, and control circuitry. The control circuitry may be configured to control each light source to output frequency modulated light beams into an object and receive detector-specific data from the detectors. The detector-specific data may be representative of scattered and unabsorbed light resultant from the frequency modulated light beams interacting with the object. The control circuitry may be further configured to determine, for a source-detector link defined by a pairing of a first light source with a first detector, a link phase differential based on received phase information extracted from the detector-specific data for the source-detector link and source phase information of a first frequency modulated light beam from the first light source. Also, the control circuitry may be configured to determine a source-detector link quality metric for the source-detector link based on the link phase differential.

2. 发明申请

US20230113897A1 CODED LIGHT FOR TARGET IMAGING OR SPECTROSCOPIC OR OTHER ANALYSIS 有权
公开(公告)号：US20230113897A1
公开(公告)日：2023-04-13
申请号：US18045695
申请日：2022-10-11
申请人： Shrenik Deliwala
发明人： Shrenik Deliwala
IPC分类号： G01J3/433 , G01N21/25 , G01J3/28
摘要： Modulation-encoded light, using different spectral bin coded light components, can illuminate a stationary or moving (relative) target object or scene. Response signal processing can use information about the respective different time-varying modulation functions, to decode to recover information about a respective response parameter affected by the target object or scene. Electrical or optical modulation encoding can be used. LED-based spectroscopic analysis of a composition of a target (e.g., SpO2, glucose, etc.) can be performed; such can optionally include decoding of encoded optical modulation functions. Baffles or apertures or optics can be used, such as to constrain light provided by particular LEDs. Coded light illumination can be used with a focal plane array light imager receiving response light for inspecting a moving semiconductor or other target. Encoding can use orthogonal functions, such as an RGB illumination sequence, or a sequence of combinations of spectrally contiguous or non-contiguous colors.

3. 发明申请

US20230095040A1 STACKABLE MOLECULAR SPECTROSCOPY CELL 有权
公开(公告)号：US20230095040A1
公开(公告)日：2023-03-30
申请号：US17490938
申请日：2021-09-30
申请人： TEXAS INSTRUMENTS INCORPORATED
发明人： Argyrios Dellis , Adam Fruehling , Simon Joshua Jacobs
IPC分类号： G01J3/02 , G01J3/433
摘要： A stackable molecular spectroscopy cell includes a hollow body, a first cap affixed to a first surface of the hollow body, covering a first opening in the hollow body, and a second cap affixed to a second surface of the hollow body, covering a second opening in the hollow body, and forming a sealed cavity within the hollow body. The sealed cavity contains a dipolar gas having a pressure of less than 0.5 mbar. The stackable molecular spectroscopy cell also includes a metal layer covering an inner surface of the hollow body and an inner surface of the first and second caps, including a first aperture in the metal layer covering the inner surface of the first cap and a second aperture in the metal layer covering the inner surface of the second cap.

4. 发明授权

US11555782B2 Spectrometry device and spectrometry method 有权
公开(公告)号：US11555782B2
公开(公告)日：2023-01-17
申请号：US16460243
申请日：2019-07-02
申请人： YOKOGAWA ELECTRIC CORPORATION
发明人： Masanori Okada
IPC分类号： G01N21/39 , G01N21/3504 , G01N33/00 , G01J3/02 , G01J3/28 , G01J3/433 , G01J3/42 , G01N21/31 , G01N21/64 , G01N21/65 , G01N21/17
摘要： A spectrometry device includes a switch and a converter. The switch acquires a first reception signal and a second reception signal that respectively include information relating to an optical spectrum and switches between outputting the first reception signal and outputting the second reception signal based on control by a controller. The converter converts the first reception signal or the second reception signal output from the switch into a digital signal.

5. 发明授权

US11484246B2 Apparatus and method for processing spectrum according to change in temperature of object 有权
公开(公告)号：US11484246B2
公开(公告)日：2022-11-01
申请号：US16426697
申请日：2019-05-30
申请人： SAMSUNG ELECTRONICS CO., LTD.
发明人： Jun Ho Lee , Sang Kyu Kim
IPC分类号： A61B5/00 , G01J3/433 , G01J3/02 , A61B5/1455 , G01J3/42 , A61B5/1491
摘要： Provided is a spectrum processing apparatus for removing noise, caused by a change in temperature, from a spectrum. The spectrum processing apparatus includes: a temperature modulator configured to perform modulation of a temperature of an object; a spectrometer configured to obtain a first spectrum based on the temperature of the object that is changed by the modulation; and a spectrum processor configured to extract a temperature change vector based on the first spectrum, and to correct a second spectrum based on the extracted temperature change vector.

6. 发明申请

US20220187203A1 SPECTROSCOPIC DEVICES, SYSTEMS, AND METHODS FOR OPTICAL SENSING OF MOLECULAR SPECIES 有权
公开(公告)号：US20220187203A1
公开(公告)日：2022-06-16
申请号：US17432665
申请日：2020-02-21
申请人： The Trustees of Princeton University
发明人： Mark ZONDLO , Lei TAO , Da PAN , Josh COLLINS , Howard Y. Bell , Alice Margaret Sophie ELLIOTT , Patrick Minter KILLOUGH , Bernardus Maria GEERTSHUIS , Herie Javier SOTO
IPC分类号： G01N21/39 , G01N21/552 , G01J3/42 , G01J3/433 , G01N21/27
摘要： Disclosed is a spectroscopic device, system, and method for measuring the concentration of one or more molecular species of interest in a gas, liquid or solid sample, where the device may be portable, may be commercially manufactured, and/or may be adapted to existing systems and/or integrated with new systems to provide optical gas sensing for such systems. The disclosed devices, systems, and methods can be particularly useful in monitoring the purity of, e.g., a certain gas species, including determining whether a gas mixture contains certain gas species above a set concentration limit.

7. 发明申请

US20220113191A1 HIGHLY-INTEGRATED ULTRAHIGH-RESOLUTION MID-INFRARED DUAL-COMB SPECTROSCOPY MEASUREMENT DEVICE AND METHOD 有权
公开(公告)号：US20220113191A1
公开(公告)日：2022-04-14
申请号：US17352327
申请日：2021-06-20
申请人： Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences
发明人： Leiran WANG , Qibing SUN , Lei SHI , Wenfu ZHANG
IPC分类号： G01J3/433 , G02F1/35 , G01J3/02 , G01J3/10 , G02F1/355
摘要： An ultrahigh-resolution mid-infrared (MIR) dual-comb spectroscopy (DCS) measurement device includes a pump unit, a microring resonator (MRR) unit, a modulation unit, a splitting unit, a testing unit, a signal detection unit, a power balance unit, a reference detection unit and a spectral analysis unit. The measurement method includes: adjusting the laser emitted by the pump unit to the MRR unit; adjusting the modulation unit and performing dual-frequency modulation; generating two sets of MIR optical frequency combs (OFCs) with different repetition rates and splitting the MIR OFCs into the test light and the reference light; performing photoelectric conversion on the test light and injecting the test light to the spectral analysis unit; performing photoelectric conversion on the reference light and injecting the reference light to the spectral analysis unit; and performing Fourier transformation and data processing on test results to obtain absorption spectrum of the to-be-tested sample.

8. 发明申请

US20220099492A1 High Throughput Multiplex Spectroscopy 有权
公开(公告)号：US20220099492A1
公开(公告)日：2022-03-31
申请号：US17481542
申请日：2021-09-22
申请人： 11887041 Canada Ltd.
发明人： David Allan Prystupa , John Stephen Pacak
IPC分类号： G01J3/433 , G01N21/31 , G01J3/28
摘要： A method for measuring a property of radiation from different sources such as moving particles or different spatial locations on each particle includes providing a spatial modulator common to all of the sources having a sequence of configurations, each of which configurations causes the radiation flux to pass along paths to respective modulation ports and cycling the common spatial modulator past each of the modulation ports so that the sequence of configurations is applied to each modulation port. The sequence of configurations comprises an ordered array of optical elements on a substrate. In one embodiment, the modulator is arranged in a circle around an axis of rotation of a rotating singulation disk. At least one source is a reference source which has not interacted with the source to be analyzed and the sample and reference sources are compared.

9. 发明授权

US11209356B2 Gas absorption spectrometer and gas absorption spectroscopy method 有权
公开(公告)号：US11209356B2
公开(公告)日：2021-12-28
申请号：US16656045
申请日：2019-10-17
申请人： SHIMADZU CORPORATION
发明人： Kazune Mano
IPC分类号： G01N21/39 , G01N21/3504 , G01J3/433
摘要： A gas absorption spectrometer is provided that is capable of measuring a gas concentration and the like with high accuracy even when a measurement target gas is mixed with a gas other than the measurement target gas. A gas absorption spectrometer includes: a wavelength tunable light source; a light source control unit to change a wavelength of the light source; a gas cell to have a measurement object gas introduced thereto, the measurement object gas containing a measurement target gas and a mixed gas other than the measurement target gas; a photodetector to detect intensity of light having passed through the gas cell; a spectrum preparation unit to prepare an absorption spectrum of the measurement object gas from a change in the light intensity relative to the change in the wavelength; a physical quantity measurement unit to measure at least one of a temperature and a concentration of the measurement target gas based on an absorption spectrum of the measurement target gas; a gas concentration measurement unit to measure a concentration of the mixed gas; and a physical quantity correction unit to correct at least one of the temperature and the concentration of the measurement target gas measured by the physical quantity measurement unit based on the concentration of the mixed gas.

10. 发明申请

US20210164837A1 PORTABLE OPTICAL SPECTROSCOPY DEVICE FOR ANALYZING GAS SAMPLES 有权
公开(公告)号：US20210164837A1
公开(公告)日：2021-06-03
申请号：US17257526
申请日：2019-06-26
申请人： Q.E.D. ENVIRONMENTAL SYSTEMS LIMITED
发明人： Fabrice Marcel Serge Bounaix , Antonia Cortina , Gabriele Finardi
IPC分类号： G01J3/433 , G01J3/02 , G01N21/03 , G01N21/3504 , G01N21/39
摘要： A portable optical spectroscopy device is disclosed for analyzing gas samples and/or for measurement of species concentration, number density, or column density. The device includes a measuring chamber with the gas sample to be analyzed, a light source with at least one laser diode for emitting a laser beam along a light path running through the measuring chamber at least in certain regions, means for modulating the wavelength of the light beam emitted by the light source, and an optical detector device having a first optical detector and at least one second optical detector. At least a part of the light emitted by the laser diode is detected after the light has passed through the measuring chamber m-times, and at least a part of the light emitted by the laser diode is detected with the at least one second optical detector after the light has passed through the measuring chamber n-times, where n>m applies.

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