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公开(公告)号：US12105020B2
公开(公告)日：2024-10-01
申请号：US17351126
申请日：2021-06-17
Applicant: FLIR Systems AB
Inventor： Jonas Sandsten , Sten Lindau
IPC: G01N21/3518 , G02B5/28 , G02B13/14
CPC classification number: G01N21/3518 , G02B5/281 , G02B13/14 , G01N2201/0648 , G01N2201/0686
Abstract: Provided are systems and methods to filter infrared spectrum radiation that can be integrated with a compact optical system for an infrared imaging system. The optical system includes an objective lens element configured to receive and transmit infrared (IR) radiation from a scene, where the IR radiation from the scene includes a particular range of wavelengths corresponding to an absorption spectrum or a transmission spectrum of a gas. The optical system also includes a spectral lens element configured to receive the IR radiation transmitted through the objective lens element, where the spectral lens element comprises a first interference filter disposed on a first surface of the spectral lens element. The interference filter is configured to filter the IR radiation transmitted through the objective lens element to a narrower wavelength band that includes the particular range of wavelengths.
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公开(公告)号：US20180180538A1
公开(公告)日：2018-06-28
申请号：US15391065
申请日：2016-12-27
Applicant: Sensors Unlimited, Inc.
Inventor： Douglas S. Malchow
IPC: G01N21/3554 , G01N21/31 , G01N33/18
CPC classification number: G01N21/3554 , G01N33/18 , G01N2021/945 , G01N2201/0686
Abstract: An imaging apparatus includes a camera with a solid-state sensor and an illumination selector. The illumination selector is arranged for optical coupling with the sensor and arranged for communicating electromagnetic radiation within a shortwave infrared narrowband to the sensor. The shortwave infrared narrowband includes a peak absorption or peak reflection wavelength of moisture to infrared illumination to image moisture disposed within a solar cell array.
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公开(公告)号：US20170082548A1
公开(公告)日：2017-03-23
申请号：US14859608
申请日：2015-09-21
Applicant: International Business Machines Corporation
Inventor： Yann Andre Nicolas Astier , Ning Li , Devendra K. Sadana , Chao Wang
CPC classification number: G01N21/6486 , G01N21/05 , G01N21/648 , G01N2021/058 , G01N2021/6482 , G01N2201/068 , G01N2201/0686
Abstract: Apparatus for enhancing on-chip fluorescence detection. For example, an apparatus comprises a microfluidic channel, an excitation signal enhancing structure formed on a first side of the microfluidic channel and a photodetector structure formed on a second side of the microfluidic channel. For example, the excitation signal enhancing structure enhances an excitation signal and the enhanced excitation signal excites one or more samples in the microfluidic channel to emit signals at a fluorescence wavelength at a higher rate.
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公开(公告)号：US09482608B1
公开(公告)日：2016-11-01
申请号：US14659579
申请日：2015-03-16
Applicant: Ravinder Jain , Mani Hossein-Zadeh
Inventor： Ravinder Jain , Mani Hossein-Zadeh
IPC: G01J5/02 , G01N21/3504 , G01N21/27
CPC classification number: G01N21/3504 , G01N21/27 , G01N21/7746 , G01N2021/7789 , G01N2201/06113 , G01N2201/0686 , H01S3/0627 , H01S3/083 , H01S3/094057 , H01S3/0941 , H01S3/1312 , H01S3/1608 , H01S3/173
Abstract: The present invention concerns an optical molecular sensing device and related method. The optical molecular sensing device has an optical resonator adapted to be connected to an excitation source. The excitation source may be a laser operating at a 2.7-2.8 um spectral range. The optical molecular sensing device has an emission spectrum comprised of a plurality wavelengths. Also included are a detection unit and a RF frequency counter to detect at least one RF beat note resulting from detecting the emission spectrum of the optical resonator. A change in frequency of the RF beat note indicates the presence of a target molecule.
Abstract translation: 本发明涉及光学分子感测装置及相关方法。 光学分子感测装置具有适于连接到激发源的光学谐振器。 激发源可以是在2.7-2.8um光谱范围内操作的激光器。 光学分子感测装置具有由多个波长组成的发射光谱。 还包括检测单元和RF频率计数器，用于检测由检测光学谐振器的发射光谱而产生的至少一个RF拍音。 RF拍音的频率变化表示存在目标分子。
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公开(公告)号：US12044671B2
公开(公告)日：2024-07-23
申请号：US17578978
申请日：2022-01-19
Applicant: Halliburton Energy Services, Inc.
Inventor： Mathew Dennis Rowe
CPC classification number: G01N33/2841 , E21B49/0875 , G01N2201/0686
Abstract: The present disclosure generally relates to a standalone gas extraction and detection system comprising a gas extraction chamber operable to receive a wellbore fluid and a carrier gas; a gas detection chamber in fluid communication with the gas extraction chamber, the gas detection chamber comprising reflective surfaces operable to receive infrared radiation (IR) and an extracted gas sample from the gas extraction chamber; an open-path detector operable to detect the IR in the gas detection chamber; and a shaft extending through the gas extraction chamber and the gas detection chamber of the standalone gas extraction and detection system.
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Patent Agency Ranking
公开(公告)号：US20240027340A1
公开(公告)日：2024-01-25
申请号：US18038703
申请日：2021-11-11
Inventor： Tohru Watanabe , Hideki Ota , Kunimitsu Toyoshima
IPC: G01N21/3577 , H04N23/12 , H04N23/11 , H04N23/56 , G01N21/88
CPC classification number: G01N21/3577 , H04N23/12 , H04N23/11 , H04N23/56 , G01N21/8803 , G01N2201/0686 , G01N2021/1776
Abstract: An imaging device includes a camera, light sources, an optical bandpass filter, and a conversion unit. The camera includes an image sensor including a N-band color filter (where N is a natural number greater than or equal to 3). The M types of light sources (where M is a natural number that satisfies 2≤M≤N) have the emission spectral characteristics of having respective peaks in mutually different wavelength ranges within a visible light range and a near-infrared range. The conversion unit generates image signals of M bands each having spectral sensitivity to the corresponding one of the mutually different wavelength ranges by performing a matrix operation on an N-band imaging signal obtained by the image sensor when an article is photographed with the camera. The light application direction and the emission intensity are individually selected for each of the light sources.
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公开(公告)号：US20170102324A1
公开(公告)日：2017-04-13
申请号：US15382772
申请日：2016-12-19
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Masaaki YASUDA
IPC: G01N21/3504 , G01N33/00 , G01N21/61
CPC classification number: G01N21/3504 , G01N21/61 , G01N33/004 , G01N2201/0686
Abstract: A gas concentration measurement device includes a waveguide including an entrance and an exit, a rotating member, first and second band pass filters on the rotating member and on a pair of planes that intersect each other, and a rotational driver. The rotating member is rotated by the rotational driver so that the first and second band pass filters are selectively located at a transmitting position. When a portion of the rotating member, the first band pass filter, or the second band pass filter, the portion having a maximum radius of gyration around a rotating shaft, is defined as a maximum radius portion, and when a rotation locus obtained by imaginarily rotating the maximum radius portion around the rotating shaft in a view along the rotating shaft is defined as a reference circle, the exit is located in the reference circle.
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公开(公告)号：US08947667B2
公开(公告)日：2015-02-03
申请号：US13934459
申请日：2013-07-03
Applicant: Canon Kabushiki Kaisha
Inventor： Hiroshi Kawanago
CPC classification number: G01N21/251 , G01J3/10 , G01J3/42 , G01J3/465 , G01J3/502 , G01N2201/062 , G01N2201/0686
Abstract: The spectrophotometer of the present invention measures a spectral reflectance of an object to be measured to thereby determine a color value of the object to be measured based on a color-matching function of an XYZ color system and the spectral reflectance. The spectrophotometer includes an irradiation unit configured to irradiate the object to be measured with light having a spectral intensity distribution in which a relative intensity at a wavelength at which the value of z reaches its peak in the color-matching function is equal to or greater than 0.5.
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公开(公告)号：US20140016128A1
公开(公告)日：2014-01-16
申请号：US13934459
申请日：2013-07-03
Applicant: Canon Kabushiki Kaisha
Inventor： Hiroshi KAWANAGO
IPC: G01J3/42
CPC classification number: G01N21/251 , G01J3/10 , G01J3/42 , G01J3/465 , G01J3/502 , G01N2201/062 , G01N2201/0686
Abstract: The spectrophotometer of the present invention measures a spectral reflectance of an object to be measured to thereby determine a color value of the object to be measured based on a color-matching function of an XYZ color system and the spectral reflectance. The spectrophotometer includes an irradiation unit configured to irradiate the object to be measured with light having a spectral intensity distribution in which a relative intensity at a wavelength at which the value of z reaches its peak in the color-matching function is equal to or greater than 0.5.
Abstract translation: 本发明的分光光度计测量待测物体的光谱反射率，由此基于XYZ色系的色匹配函数和光谱反射率确定待测物体的色值。 分光光度计包括：照射单元，被配置为用具有光谱强度分布的光照射被测量物体，其中在色彩匹配函数中z达到其峰值的波长处的相对强度等于或大于 0.5。
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公开(公告)号：US12111249B2
公开(公告)日：2024-10-08
申请号：US17638665
申请日：2020-08-31
Inventor： Alfons Dehé , Achim Bittner , Lenny Castellanos , Sophie Billat , Frank Hedrich
CPC classification number: G01N21/1702 , G01N29/2425 , G01N2021/1704 , G01N2021/1708 , G01N2201/0686
Abstract: In a first aspect, the invention relates to a photoacoustic gas sensor comprising a gas-fillable detection chamber and a reference chamber arranged laterally adjacent to each other and connected by a sensor channel. A sensor located at or in the sensor channel allows measurement of the photoacoustic signals. Both chambers are preferably located in a plane perpendicular to the emitted IR radiation of the IR emitter which is also comprised. The gas sensor is also formed from a multilayer substrate.
In further aspects, the invention also relates to a method of manufacturing a gas sensor and a method of analyzing gas with a gas sensor.
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