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公开(公告)号：US11635375B2
公开(公告)日：2023-04-25
申请号：US17085278
申请日：2020-10-30
摘要： Light detection systems for simultaneously measuring scattered light (e.g., in a flow stream) from particles having diameters which differ by 100 nm or more are described. Light detection systems according to certain embodiments include a static optical adjustment component, a variable optical adjustment component and a photodetector. Systems and methods for measuring scattered light from a sample (e.g., in a flow stream) and kits having a static optical adjustment component, a variable optical adjustment component and a photodetector are also provided.
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公开(公告)号：US11609179B2
公开(公告)日：2023-03-21
申请号：US16322370
申请日：2017-07-28
申请人： ENVEA UK Ltd
摘要： A method and apparatus (1) for monitoring particles flowing in a stack are disclosed. The method comprises emitting light from a light source along an optical path for scattering from the particles, rotating a rotatable monitoring assembly (15) mounted in the optical path, and detecting the scattered light using a detector. The rotatable monitoring assembly (15) contains at least two in apertures, and the method further comprises rotating the rotatable monitoring assembly (15) into a plurality of different configurations. In an operation configuration, light passes through the rotatable monitoring assembly (15) and into the stack unimpeded. In a zero-check configuration, the rotatable monitoring assembly (15) blocks the light from reaching the stack. In a span-check configuration, light of varying intensity passes from the light source through the rotatable monitoring assembly (15) into the stack. In a contamination-check configuration, the light is reflected through the rotatable monitoring assembly (15) onto the detector, without entering the stack. In the safety-shutter configuration, the rotatable monitoring assembly (15) protects optical components in the instrument from particles in the stack.
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公开(公告)号：US11598722B2
公开(公告)日：2023-03-07
申请号：US17052949
申请日：2019-05-08
申请人： CARRIER CORPORATION
IPC分类号： G01N21/53 , G01N21/47 , G08B17/107
摘要： A multi-point detection system includes one or more light sources, one or more light sensors, and a controller. The light sources are configured to emit an array of collimated light beams, and the light sensors define an array of lines of view. Each of the lines of view intersect different ones of the collimated light beams at respective detection nodes. The light sensors are operable to emit sensor signals responsive to received scattered light from interaction of the collimated light beams with an analyte at the detection nodes. The controller is connected to receive the sensor signals and configured to determine from the scattered light whether the analyte contains a contaminant.
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公开(公告)号：US11579075B2
公开(公告)日：2023-02-14
申请号：US17336720
申请日：2021-06-02
发明人： Sadao Ota , Ryoichi Horisaki , Kazuki Hashimoto
摘要： Any one or both of an optical system with a structured lighting pattern and a structured detecting system having a plurality of regions with different optical characteristics are used. In addition, optical signals from an object to be observed through one or a small number of pixel detectors are detected while changing relative positions between the object to be observed and any one of the optical system and the detecting system, time series signal information of the optical signals are obtained, and an image associated with an object to be observed from the time series signal information is reconstructed.
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5.发明授权公开(公告)号：US11561162B2
公开(公告)日：2023-01-24
申请号：US16979691
申请日：2019-01-28
申请人： SONY CORPORATION
发明人： Katsutoshi Tahara
摘要： It is aimed to provide a technology that enables highly accurate device performance evaluation and device adjustment in optical analysis of microparticles, using the same type of beads. The present technology provides an information processing device including an information processing unit that acquires a plurality of fluorescence intensities at a plurality of light irradiation powers for a fluorescence signal from a sample including particles labeled with a fluorescent dye having a single fluorescence intensity, recognizes an intensity range of each of the plurality of fluorescence intensities detected on the basis of a fluorescence intensity balance of the sample, and calculates information relating to sensitivity of a fluorescence detection unit.
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公开(公告)号：US11559179B2
公开(公告)日：2023-01-24
申请号：US16810180
申请日：2020-03-05
发明人： Tetsuya Takayanagi
摘要： The present disclosure provides a self-propelled pathogen detection device in which a place where a pathogen is highly likely to be present in a space such as an inside of a facility is allowed to be configured preferentially to be a target region of detection. The self-propelled pathogen detection device according to the present disclosure comprises a housing; a detection part for detecting a pathogen; a movement mechanism for moving the housing; a position acquirement part for acquiring position information representing a current position of the housing in a space; and a control part which determines a target region in the space on the basis of traffic line information on a person in the space, and controls the movement mechanism to move the housing in the target region on the basis of the position information. The detection part detects the pathogen in the target region.
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公开(公告)号：US11536849B2
公开(公告)日：2022-12-27
申请号：US16623749
申请日：2018-07-14
申请人： NEOLund AB
发明人： Mikkel Brydegaard
摘要： The present disclosure provides a Scheimpflug LIDAR apparatus for detecting a property of a gas comprising: a light source configured to emit a light along at least a first axis, a light detection arrangement, and an optical configuration fulfilling the Scheimpflug condition and Hinge rule. The light source comprises an expander aperture, and wherein the expander aperture and light detection arrangement are configured such that: a spot size of the emitted light along the first axis is matched to a pixel footprint of pixels configured to receive light from corresponding distances along the first axis, and an effective range resolution of at least one column of pixels or probe volume deteriorates linearly with respect to the range.
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公开(公告)号：US11529078B2
公开(公告)日：2022-12-20
申请号：US16466780
申请日：2016-12-05
发明人： Kiyoshi Tateishi , Wataru Onodera , Atsuya Ito , Tomoya Murakami , Akari Agata , Genki Adachi
摘要： This fluid evaluation device is provided with an irradiation unit for irradiating a fluid with light, a light reception unit for receiving scattered light from the fluid and outputting a light reception signal, and an estimation unit for estimating at least one from among flow rate and density by mapping input points, which are on a first plane defined by flow rate and frequency and are expressed by light amount information indicating the amount of scattered light included in the light reception signal and frequency information indicating a frequency for a beat signal resulting from the Doppler shifting of the light included in the light reception signal, onto a second plane defined by fluid flow rate and fluid density.
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公开(公告)号：US20220381687A1
公开(公告)日：2022-12-01
申请号：US17787358
申请日：2020-12-18
发明人： Matti Okkonen , Edgar Bohner
摘要： The invention concerns method and an apparatus for analyzing the quality and quantity of bubbles or droplets of a dispersed phase in a construction material. The method may be used on construction materials before or during curing of the material, while in a non-solid state with the dispersed phase being entrapped therein. The inventive analyzing includes the steps of: applying a first side of an at least partially transparent plate in contact with a sample of said construction material to make a surface of said sample visible through said transparent plate; illuminating said surface of said sample through said plate from an opposite second side of said plate with at least one light source; providing a photosensitive sensor on said second side of said plate for receiving light reflected from said sample through said transparent plate, receiving from said photosensitive sensor electrical signals corresponding to said received reflected light and rendering from said electrical signals a visual representation of said surface of said sample using an imaging device; analyzing said visual representation with a computer system, by identifying bubbles or droplets of said dispersed phase from the surface of the sample by a spatial illumination encoding of the sample; and by determining the size and location of identified bubbles or droplets of said dispersed phase. Finally, an indication of the quality of said construction material is computed, based on the size and distribution of the identified bubbles or droplets of said dispersed phase in said sample.
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公开(公告)号：US11506586B2
公开(公告)日：2022-11-22
申请号：US17118110
申请日：2020-12-10
申请人： Carrier Corporation
摘要： A smoke detector for an air duct includes a photoelectric detection system and an air flow pathway in fluid communication with the air duct. The air flow pathway includes an inlet, an optic tube, and an outlet. The photoelectric detection system includes a circuit board having at least one light emitter and at least one light receiver mounted thereon. The optic tube passes through the circuit board and between the at least one light emitter and at least one light receiver.
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