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131.发明公开公开(公告)号：US20240011903A1
公开(公告)日：2024-01-11
申请号：US18036360
申请日：2021-11-10
Applicant: PURDUE RESEARCH FOUNDATION
Inventor： David D. NOLTE , Kwan JEONG , Maria Josef LOPERA , John J. TUREK
CPC classification number: G01N21/474 , G01J3/0208 , G01J3/021 , G01J9/02 , G01N2015/1006
Abstract: Apparatuses and methods for investigating the inside of a tissue cell are disclosed. Embodiments include diffusely scattering light off a target sample, producing two crossing beams from the scattered light, and using a camera to create an image from the light. Some embodiments utilize a Fourier lens and a Fresnel biprism, and optionally include a long-coherence light source, a delay plate (which can be a polarization rotator or an optical flat), and/or a beam expander. Still further embodiments utilize a diffraction grating, a spatial filter (which may include two differently sized apertures), and a Fourier lens, and optionally include differently sized apertures in the spatial filter. Some embodiments include a transparent support and illuminating the target at an oblique angle through the transparent support. Still further embodiments utilize a low-coherence light source and/or immobilizing the sample tissue using surface bonding chemistry.
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公开(公告)号：US20240011832A1
公开(公告)日：2024-01-11
申请号：US18347908
申请日：2023-07-06
Applicant: Shphotonics Ltd
CPC classification number: G01J3/2823 , G01J3/0208 , G01J3/021 , G02B1/002 , G02B3/0043 , G02B2207/101
Abstract: A metasurface spatial spectrometer includes a beam splitter, a first reflector, a second reflector, and a reception sensor. A reflective surface of the first reflector or the second reflector includes a plurality of sub-wavelength structures with different functions and arranged according to preset positions. The beam splitter is configured to: transmit a first portion of incident light and reflect a second portion of the incident light, transmit a portion of light reflected by the first reflector, and reflect a portion of light reflected by the second reflector. The first reflector is arranged at an angle of 45°, −45°, 135°, or −135° with respect to the beam splitter, and is configured to reflect the second portion of the incident light. The second reflector is arranged perpendicular to the first reflector, and is configured to reflect the first portion of the incident light.
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公开(公告)号：US20240003742A1
公开(公告)日：2024-01-04
申请号：US17855133
申请日：2022-06-30
Applicant: DATACOLOR INC.
Inventor： Zhiling Xu , William Bishop
CPC classification number: G01J3/28 , G01J3/0297
Abstract: In the disclosure provided herein, the described apparatus, systems and methods are directed to compensation of errors caused by the difference between the specular port and the sphere in a sphere-based color-measurement instrument, and improvement of the performance of the instrument. In one or more implementations, described approaches eliminate the need for hardware replacement, and therefore reduce costs associated with the operation of color measurement instruments.
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公开(公告)号：US20240003740A1
公开(公告)日：2024-01-04
申请号：US18036458
申请日：2021-11-18
Applicant: SIGNIFY HOLDING B.V.
Inventor： PABLO MORTARI SCHIAVINI
CPC classification number: G01J3/0297 , G01J3/0294 , H05B45/22 , A01G7/045 , A01K29/005 , G01J3/10 , G01J2003/104
Abstract: A method is provided of calibrating a lighting system to enable conversion between i) light output settings for a plurality of lighting channels of the lighting system, each channel having a respective color spectrum from a first set of color spectra, and ii) a light intensity at an area of interest for each of a second set of color spectra. The method derives a calibration matrix, based on a set default light outputs from the lighting channels, a mapping to light spectra to be measured, and light intensities measured at those light spectra. This calibration procedure takes advantage of the fact that using the same measurement device conventionally used for a simple calibration, it is possible to retrieve not only the total measured PPFD, but also partial PPFD values per spectral range.
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公开(公告)号：US11860104B2
公开(公告)日：2024-01-02
申请号：US17816713
申请日：2022-08-01
Applicant: NOVA LTD.
Inventor： Eyal Hollander , Gilad Barak , Elad Schleifer , Yonatan Oren , Amir Shayari
CPC classification number: G01N21/65 , G01J3/0205 , G01J3/027 , G01J3/4412 , G01N2201/0636 , G01N2201/06113
Abstract: A method, a system, and a non-transitory computer readable medium for Raman spectroscopy. The method may include determining first acquisition parameters of a Raman spectroscope to provide a first acquisition set-up, the determining is based on at least one expected radiation pattern to be detected by a sensor of the Raman spectroscope as a result of an illumination of a first area of a sample, the first area comprises a first nano-scale structure, wherein at least a part of the at least one expected radiation pattern is indicative of at least one property of interest of the first nano-scale structure of the sample; wherein the first acquisition parameters belong to a group of acquisition parameters; setting the Raman spectroscope according to the first acquisition set-up; and acquiring at least one first Raman spectrum of the first nano-scale structure of the sample, while being set according to the first acquisition set-up.
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Patent Agency Ranking
136.发明公开公开(公告)号：US20230417598A1
公开(公告)日：2023-12-28
申请号：US18336452
申请日：2023-06-16
Inventor： François Deneuville
CPC classification number: G01J4/04 , G01J3/0224 , G01J3/0208
Abstract: A system for determining an estimated degree of polarization of a radiation reflected) by a scene, including a first light source of a first electromagnetic radiation at a first frequency and rectilinearly polarized according to a first direction, a second light source of a second electromagnetic radiation at a second frequency greater than the first frequency and rectilinearly polarized according to a second direction non-parallel to the first direction, and a device of acquisition of an image of the radiation reflected by the scene including first pixels configured to capture the reflected radiation, each first pixel being covered with a rectilinear polarizer according to a third direction non-perpendicular to the first direction.
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公开(公告)号：US20230408333A1
公开(公告)日：2023-12-21
申请号：US18333603
申请日：2023-06-13
Applicant: Radom Corporation
Inventor： Ashok Menon , Velibor Pikelja , Jovan Jevtic
CPC classification number: G01J3/0291 , G01J3/0208 , H05H1/461
Abstract: A portable, optical spectrometer provides an extended ignition arc allowing high-voltage components to be contained within a protective housing. Automatic plasma initiation is managed through an optical plasma detector distinguishing plasma contained in the plasma region from breakout plasma. A negative pressure vent receives gases received from the plasma and cools these gases prior to receipt by a remote vent fan through a conduit having sheathing air bleed openings around the vent mixing with other cooling air streams for the electronics. A spring-biased sample jet tube holder allows ready removal and replacement of the sample jet tube while preserving proper alignment with the plasma region.
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公开(公告)号：US11847799B2
公开(公告)日：2023-12-19
申请号：US17682421
申请日：2022-02-28
Applicant: Logitech Europe S.A.
Inventor： Peng-Jian Yang , Shang-Yu Yu , Yi-Hsieh Wang , Ko Chun Lin , Zhaoyan Han
CPC classification number: G06T7/90 , G01J3/0291 , G01J3/462 , G01J3/465 , G06V10/56 , G06V10/751
Abstract: Automation of the comparison of the colors of small surfaces of products. In one embodiment, color differences are measured rather than an absolute color value. An apparatus is provided for capturing color images of a portion of a product or part to provide a sample product image. The sample image is compared to an image of a standard product obtained under the same conditions with the same apparatus. The color difference is measured to determine when it is in a predetermined range.
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公开(公告)号：US11846392B1
公开(公告)日：2023-12-19
申请号：US17702677
申请日：2022-03-23
Applicant: Wavefront Research, Inc.
Inventor： Thomas A. Mitchell , Jonas D. Corl
CPC classification number: F17C3/085 , G01J3/0291 , G01J3/18 , G01J3/2823 , F17C2250/038 , F17C2250/0478 , F17C2250/0491 , F17C2250/07
Abstract: A system including an optical system having at least one refractive or reflective element, the optical system configured to substantially receive electromagnetic radiation emanating from a source, the optical system being located within a Dewar, a support structure, support structure being mechanically disposed between the optical system and a surface of the Dewar, the support structure having substantially low thermal conductance, a cold source; the cold source being located within the Dewar, a thermal link, the thermal link being mechanically disposed between the optical system and the cold source, the thermal link being substantially flexible and having substantially high thermal conductance.
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140.发明公开公开(公告)号：US20230400414A1
公开(公告)日：2023-12-14
申请号：US18034450
申请日：2021-10-26
Inventor： Khanh Q. KIEU , Yukun QIN, I
CPC classification number: G01N21/65 , G01J3/027 , G01J3/44 , H01S3/06712 , H01S3/06754 , H01S3/1118
Abstract: A method of performing coherent anti-stokes Raman spectroscopy (CARS) includes generating first and second optical pulse trains having different and adjustable repetition rates. One of the pulse trains is directed in a CW direction and the other in a CCW direction. A frequency shift and a first linear chirp is applied to optical pulses in the first optical pulse train. A second linear chirp is applied to optical pulses in the second optical pulse train. The first and second linear chirps having a common chirp rate. One of the chirped optical pulse trains is used as a pump beam and the other is used as a Stokes beam. The first and second chirped optical pulse trains are combined to define a combined beam. The combined beam is provided to a CARS spectroscopic system for exciting a resonant mode in a sample and generating a CARS signal.
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