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公开(公告)号：US12098954B2
公开(公告)日：2024-09-24
申请号：US17639924
申请日：2020-09-04
Applicant: Oxford University Innovation Limited
Inventor： Robin Wang , Peter Norreys
CPC classification number: G01J3/2823 , G01J3/0229 , G01J3/0248
Abstract: A hyperspectral imaging device (100) is provided comprising an input (102) for receiving a light field from a scene (106), an encoder (108), at least one dispersive element (110, 112), at least one array detector (114, 110) and a processor (118). The encoder (108) is arranged to receive at least a portion of the light field from the input (102) and transform it to provide a first and second encoded light (120, 122) field having different spatial patterns. At least one dispersive element (110, 112) is arranged to apply spectral shear to the first and second encoded light fields (120, 122) respectively to provide first and second sheared light fields (124, 126). At least one array detector (114, 116) is arranged to detect the first and second sheared light fields (124, 126). The processor (118) is arranged to process an output from the at least one array detector (114, 116) to determine a datacube (128) corresponding to a hyperspectral image of the scene.
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公开(公告)号：US12098950B2
公开(公告)日：2024-09-24
申请号：US17634451
申请日：2020-08-11
Applicant: National University of Singapore
Inventor： Guangya James Zhou
CPC classification number: G01J3/0272 , G01J3/0208 , G01J3/0216 , G01J3/0229 , G01J3/04 , G01J2003/045
Abstract: A spectrometer for detecting an electromagnetic (EM) wave spectrum having one or more wavelength components within a spectral band of interest, and a method of detecting an electromagnetic (EM) wave spectrum having one or more wavelength components within a spectral band of interest. The method uses an entrance aperture; a dispersion and imaging optics containing at least one dispersion element; an exit aperture; a collection optics; and at least one single-pixel detector, each single-pixel detector sensitive to one or more of the wavelength components; and the method comprises the steps of spatially encoding at least one entrance slit of the entrance aperture along a direction substantially transverse to a direction of dispersion of the dispersion and imaging optics; creating, using the dispersion and imaging optics, dispersed images of the entrance aperture on a plane of the exit aperture, such that respective images at the different wavelength components are offset by different amounts of displacements along the direction of dispersion; spatially encoding a plurality of exit slits of the exit aperture along the direction substantially transverse to the direction of dispersion, wherein the exit aperture comprises a plurality of exit slits arranged in the direction of dispersion; gathering, using the collection optics, a total EM wave energy that enters the entrance aperture and exits the exit aperture to one of the at least one single-pixel detectors; changing at least one of an encoding pattern of the at least one entrance slits and an encoding pattern of the plurality of exit slits for a number of times; and measuring the output of the at least one detector for respective ones of the number of times for reconstructing the EM wave spectrum.
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公开(公告)号：US12007275B2
公开(公告)日：2024-06-11
申请号：US17576117
申请日：2022-01-14
Applicant: Apple Inc.
Inventor： Mark Alan Arbore , Gary Shambat , Matthew A. Terrel
CPC classification number: G01J3/0229 , G01J3/0205 , G01J3/0216 , G01J3/0256 , G01J3/0294 , G01J3/10 , G01J3/108 , G01J3/36 , G01J3/42 , G01N21/25 , G01N21/49 , G01N2021/4711
Abstract: Systems and methods for determining one or more properties of a sample are disclosed. The systems and methods disclosed can be capable of measuring along multiple locations and can reimage and resolve multiple optical paths within the sample. The system can be configured with one-layer or two-layers of optics suitable for a compact system. The optics can be simplified to reduce the number and complexity of the coated optical surfaces, et al. on effects, manufacturing tolerance stack-up problems, and interference-based spectroscopic errors. The size, number, and placement of the optics can enable multiple simultaneous or non-simultaneous measurements at various locations across and within the sample. Moreover, the systems can be configured with an optical spacer window located between the sample and the optics, and methods to account for changes in optical paths due to inclusion of the optical spacer window are disclosed.
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公开(公告)号：US11988556B2
公开(公告)日：2024-05-21
申请号：US18180736
申请日：2023-03-08
Applicant: VERIFOOD, LTD.
Inventor： Damian Goldring , Dror Sharon , Guy Brodetzki , Amit Ruf , Menahem Kaplan , Sagee Rosen , Omer Keilaf , Uri Kinrot , Kai Engelhardt , Ittai Nir
IPC: G01J3/28 , G01J3/02 , G01J3/10 , G01J3/12 , G01J3/26 , G01J3/36 , G01J3/45 , G01J5/02 , G01J5/10 , G01N21/25 , G01N33/02
CPC classification number: G01J3/108 , G01J3/0205 , G01J3/0208 , G01J3/0229 , G01J3/0256 , G01J3/0259 , G01J3/0262 , G01J3/0264 , G01J3/0272 , G01J3/10 , G01J3/12 , G01J3/26 , G01J3/28 , G01J3/2803 , G01J3/36 , G01J3/45 , G01J5/0265 , G01J5/10 , G01N21/255 , G01N33/02 , G01J3/0291 , G01J2003/1226 , G01J2003/123 , G01J2003/1239
Abstract: A spectrometer comprises a plurality of isolated optical channels comprising a plurality of isolated optical paths. The isolated optical paths decrease cross-talk among the optical paths and allow the spectrometer to have a decreased length with increased resolution. In many embodiments, the isolated optical paths comprise isolated parallel optical paths that allow the length of the device to be decreased substantially. In many embodiments, each isolated optical path extends from a filter of a filter array, through a lens of a lens array, through a channel of a support array, to a region of a sensor array. Each region of the sensor array comprises a plurality of sensor elements in which a location of the sensor element corresponds to the wavelength of light received based on an angle of light received at the location, the focal length of the lens and the central wavelength of the filter.
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公开(公告)号：US11920983B2
公开(公告)日：2024-03-05
申请号：US17706352
申请日：2022-03-28
Applicant: Nanyang Technological University
CPC classification number: G01J3/2846 , G01J3/0208 , G01J3/0229 , G01J2003/285
Abstract: Embodiments are directed to an optical spectrometry method, comprising: generating a sequence of 2D Hadamard masks along the time dimension, wherein each 2D Hadamard mask is arranged with a wavelength dimension and a coefficient dimension; detecting an optical signal from light transmitted through the sequence of 2D Hadamard masks; and reconstructing a spectrum to be detected by analyzing the optical signal, wherein each 2D Hadamard mask in the sequence of 2D Hadamard masks comprises a plurality of columns along the wavelength dimension, each column corresponding to a different Hadamard coefficient, and having different respective sequency values along the time dimension.
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Patent Agency Ranking
公开(公告)号：US11913832B2
公开(公告)日：2024-02-27
申请号：US17459942
申请日：2021-08-27
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Kyungsang Cho
CPC classification number: G01J3/0229 , G01J3/0291 , G01J3/2803 , G01J3/51 , G02B5/201 , G02B5/206 , G01J2003/1217 , G01J2003/1221 , G01J2003/2806 , G01J2003/516
Abstract: Provided are a filter array, a spectral detector including the filter array, and a spectrometer employing the spectral detector. The filter array may have a multi-array structure including a plurality of filter arrays. The filter array may include a first filter array having a first structure in which a plurality of first filters with different transmittance spectrums are arranged, and a second filter array having a second structure in which a plurality of second filters with different transmittance spectrums are arranged, the second filter array being arranged to at least partially overlap the first filter array at a first position relative to the first filter array so that the multi-arrangement type filter array has a first set of absorbance characteristics. The second filter array may be configurable to be arranged to at least partially overlap the first filter array at a second position relative to the first filter array so that the multi-arrangement type filter array has a second set of absorbance characteristics different from the first set of absorbance characteristics.
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公开(公告)号：US11874168B2
公开(公告)日：2024-01-16
申请号：US17723815
申请日：2022-04-19
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Sung Hyun Nam , Woo Chang Lee
CPC classification number: G01J3/0275 , G01J3/0202 , G01J3/0229 , G01J3/18
Abstract: A spectrometer includes: a dispersive element configured to split light; a detector comprising a plurality of pixels configured to receive the split light; an optical mask disposed in an optical path of the light between the dispersive element and the detector and comprising a plurality of light transmitting portions and a plurality of light blocking portions which are arranged alternately; and a driver configured to control a position of the optical mask or a position of the detector, and change a light incident area of each of the plurality of pixels to receive the light incident on the plurality of light transmitting portions of the optical mask.
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公开(公告)号：US20240011830A1
公开(公告)日：2024-01-11
申请号：US18311748
申请日：2023-05-03
Applicant: Photothermal Spectroscopy Corp
Inventor： Derek Decker , Craig Prater
CPC classification number: G01J3/0297 , G01J3/0216 , G01J3/0229 , G01J3/108 , G01J2003/102
Abstract: Apparatuses and methods for microscopic analysis of a sample using spatial light manipulation to increase signal to noise ratio are described herein.
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公开(公告)号：US20230392984A1
公开(公告)日：2023-12-07
申请号：US18203125
申请日：2023-05-30
Applicant: IMEC VZW
Inventor： Bruno FIGEYS , Robert GEHLHAAR , Jan GENOE
CPC classification number: G01J3/2823 , G01J3/0224 , G01J3/0216 , G01J4/04 , G01J3/0229 , G01J3/2803 , G01J2003/2826 , G01J2003/282
Abstract: According to an aspect of the present inventive concept there is provided a device for polarization dependent imaging, comprising a detector comprising an array of light sensitive elements; a plurality of light propagating units, each comprising: a funnel element having a collecting end and a transmitting end, the funnel element being configured to collect light at the collecting end and propagate the light to the transmitting end; a waveguide having a receiving end and a distributing end, the waveguide being configured to receive the light from the transmitting end at the receiving end and propagate the light to the distributing end, wherein the waveguide is configured to propagate the light through the waveguide in dependence of polarization such that a distribution of the light at different locations of the distributing end is dependent on polarization of the light.
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公开(公告)号：US20230375404A1
公开(公告)日：2023-11-23
申请号：US18308572
申请日：2023-04-27
Applicant: IDEX HEALTH & SCIENCE LLC
Inventor： Jeffrey M. Bendick , John O’Shaughnessy , David E. Hargis
CPC classification number: G01J3/0229 , G01J3/4406 , G01J3/0208 , G02B5/04 , G01J3/0218 , G02B3/06 , G02B3/0056
Abstract: Various embodiments of a laser illumination system are disclosed. In some examples, a system includes one or more lasers and a beam combiner configured to direct a combined light beam along a path. The system can include a polychroic optical assembly that receives the combined light beam and to output a first beam of the first light of the first wavelength and a second beam of the second light of the second wavelength. The second beam can be offset from the first beam. The polychroic optical assembly can be a prism assembly. The system can include one or more optical elements configured alter a distribution of light of the first beam to output a first output line at a sample plane, and to alter a distribution of light of the second beam to output a second output line at the sample plane.
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