公开(公告)号：US10648861B2

公开(公告)日：2020-05-12

申请号：US15908455

申请日：2018-02-28

Applicant: VERIFOOD, LTD.

Inventor： Damian Goldring ,  Dror Sharon ,  Guy Brodetzki ,  Sagee Rosen ,  Omer Keilaf ,  Uri Kinrot ,  Ittai Nir ,  Nitzan Waisberg ,  Ofer Rachman ,  Assaf Carmi

IPC: G01J3/02 ,  G01J3/10 ,  G01J3/26 ,  G01J3/28 ,  G01J3/06 ,  G01J3/32 ,  G01J3/36

Abstract: A protective sheath having a closed end and an open end is sized to receive a hand held spectrometer. The spectrometer can be placed in the sheath to calibrate the spectrometer and to measure samples. In a calibration orientation, an optical head of the spectrometer can be oriented toward the closed end of the sheath where a calibration material is located. In a measurement orientation, the optical head of the spectrometer can be oriented toward the open end of the sheath in order to measure a sample. To change the orientation, the spectrometer can be removed from the sheath container and placed in the sheath container with the calibration orientation or the measurement orientation. Accessory container covers can be provided and placed on the open end of the sheath with samples placed therein in order to provide improved measurements.

公开(公告)号：US20190320094A1

公开(公告)日：2019-10-17

申请号：US16383495

申请日：2019-04-12

Applicant: Arius Technology Inc.

Inventor： Michael Kevin JACKSON

IPC: H04N1/60 ,  G06T11/00 ,  G06T7/90 ,  G06T3/00 ,  G01J3/50 ,  G01J3/06 ,  G01J3/10 ,  G01N21/25 ,  G01N21/27

Abstract: Color values as a function of position within a painting may be determined by acquiring a plurality of sets of images of the painting. Each set of images may correspond to a different region within the painting. Each image in a set of images may be acquired using a different lighting condition. An optical system comprising a telecentric lens may be used to acquire each image. Within a set of images, corresponding lightness values of pixels may be compared. Lightness values varying from other corresponding lightness values more than a threshold amount may be eliminated. The non-eliminated lightness values for a pixel may be used to generate a processed value for the pixel. The processed values for each pixel representing an imaged region may be combined into a single image. Eliminating lightness values may remove specular highlights and/or shadows. Each of the single images corresponding to each set of images may be registered together to generate a color map image of the painting. The generated color map image may be used to correct color data collected by laser scanning the painting. A 3D printer may, for example, use the corrected laser color data in combination with an elevation map of the painting to produce a faithful reproduction of the painting.

公开(公告)号：US10436642B2

公开(公告)日：2019-10-08

申请号：US15677492

申请日：2017-08-15

Applicant: SICHUAN DUALIX SPECTRAL IMAGING TECHNOLOGY CO., LTD.

Inventor： Xinghai Chen ,  Yelin Liu ,  Zhihui Huang ,  Yu Huang

IPC: G01J3/06 ,  G01J3/28 ,  G01J3/02 ,  B64D47/08 ,  B64C39/02

Abstract: A lens scanning mode hyperspectral imaging system and a rotor unmanned aerial vehicle include: an imaging lens, an imaging spectrometer and a surface array detector arranged in sequence and coaxial to a main optic axis, wherein the imaging spectrometer and the surface array detector are connected and mounted to each other; wherein the lens scanning mode hyperspectral imaging system further includes: a driving device for driving the imaging lens to translate relative to a plane where a slit of the imaging spectrometer is. The hyperspectral imaging system of the present invention overcomes the technical bias in the prior art that the imaging lens must be fixed, and the present invention provides relative motion between the target object and the imaging spectrometer by the lens scanning mode for imaging, which solves the image distortion problem of conventional hyperspectral imaging system using a slit scanning mode or a scanning mode.

公开(公告)号：US10386233B2

公开(公告)日：2019-08-20

申请号：US16226597

申请日：2018-12-19

Applicant: KLA-TENCOR CORPORATION

Inventor： Mark Allen Neil

IPC: G01J3/02 ,  G01J3/06 ,  G01J3/12 ,  G01J3/18 ,  G01J3/28 ,  G02B6/293 ,  G03F7/20 ,  G01B11/02 ,  G01B11/14 ,  G01N21/21 ,  G01N21/47 ,  G01N21/55

Abstract: Systems, methods, apparatuses, and articles of manufacture are provided for recovering a digitized spectrum and may comprise: an optical system configured to transform rays, the optical system including a diffraction grating, a steering mirror, a stage, and an actuator configured to move one of the stage, diffraction grating, or steering mirror according to a movement regime to vary an incidence of the rays on the stage; a sensor array disposed on the stage configured to receive the rays incident from the optical system at a plurality of measurement locations to obtain a plurality of ray spectra; and a processor electrically connected to the sensor array configured to receive the ray spectra, interleave the ray spectra to yield an interleaved spectrum, and deconvolve a point spread function corresponding to the optical system from the interleaved spectrum to yield a recovered digitized spectrum.

公开(公告)号：US10247607B2

公开(公告)日：2019-04-02

申请号：US15714454

申请日：2017-09-25

Applicant: Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.

Inventor： Heinrich Grueger ,  Jens Knobbe ,  Tino Puegner

IPC: G01J3/18 ,  G01J3/02 ,  G01J3/04 ,  G01J3/06

Abstract: An optical arrangement for a spectral analysis system, a method for producing an optical arrangement for a spectral analysis system and a spectral analysis system are disclosed. In an embodiment the optical arrangement includes a carrier substrate having a placement area for a frame and a base area, and a diffraction grating movably arranged in the frame, wherein the frame is arranged on the placement area in an inclined placement position with respect to the base area so that the diffraction grating, arranged in a base position, is inclined with respect to the base area.

公开(公告)号：US10156522B2

公开(公告)日：2018-12-18

申请号：US15303514

申请日：2015-04-14

Applicant: The Regents of the University of California

Inventor： James W. Chan ,  Lingbo Kong

IPC: G01N21/65 ,  G01J3/06 ,  G01J3/44

Abstract: Methods and systems for reconstructing individual spectra acquired from laser interrogation spots in a 2D array illuminating a particle are described. A particle is positioned in a 2D array that includes multiple laser interrogation spots. The laser interrogation spots of the particle are detected in the 2D array using a spectrometer. Multifocal spectral patterns are generated based on the laser interrogation spots, and an individual spectrum for each laser interrogation spot is reconstructed based on the plurality of multifocal spectral patterns.

公开(公告)号：US20180328788A1

公开(公告)日：2018-11-15

申请号：US15539217

申请日：2015-02-02

Applicant: Foss Analytical A/S

Inventor： Steen Kjaer ANDERSEN ,  Mads Lykke ANDERSEN

IPC: G01J3/453 ,  G01J3/06

CPC classification number: G01J3/4535 ,  G01J3/06 ,  G01J3/45

Abstract: A spectrometer system comprises a scanning interferometer; a drive system mechanically coupled to a movable reflector element of the scanning interferometer and operable to effect reciprocation of the movable reflector element at a plurality, preferably more than two, for example three, different scan speeds; a detector arrangement configured to sample at equidistant time intervals an interferogram formed by the scanning interferometer to generate a sampled interferogram; and a data processor is adapted to acquire a sampled interferogram at each of the plurality of different scan speeds and to perform a relative comparison of the content of the so acquired plurality of sampled interferograms.

公开(公告)号：US20180249913A1

公开(公告)日：2018-09-06

申请号：US15868623

申请日：2018-01-11

Applicant: University of Washington through its Center for Commercialization

Inventor： Eric J. Seibel ,  Leonard Y. Nelson

IPC: A61B5/00 ,  A61C19/04 ,  A61B1/00 ,  G01N21/64 ,  G01J3/44 ,  G01J3/10 ,  G01J3/06 ,  G01J3/02 ,  A61B1/247 ,  A61B1/07 ,  A61B1/015

CPC classification number: A61B5/0088 ,  A61B1/00009 ,  A61B1/00096 ,  A61B1/00142 ,  A61B1/015 ,  A61B1/07 ,  A61B1/247 ,  A61B5/0071 ,  A61B5/0075 ,  A61B5/0084 ,  A61B5/4547 ,  A61C19/04 ,  G01J3/0205 ,  G01J3/0218 ,  G01J3/06 ,  G01J3/10 ,  G01J3/4406 ,  G01N21/645 ,  G01N21/6486 ,  G01N2021/6421 ,  G01N2021/6484 ,  G01N2021/6493

Abstract: Methods and systems for detecting early stage dental caries and decays are provided. In particular, in an embodiment, laser-induced autofluorescence (AF) from multiple excitation wavelengths is obtained and analyzed. Endogenous fluorophores residing in the enamel naturally fluoresce when illuminated by wavelengths ranging from ultraviolet into the visible spectrum. The relative intensities of the AF emission changes between different excitation wavelengths when the enamel changes from healthy to demineralized. By taking a ratio of AF emission spectra integrals between different excitation wavelengths, a standard is created wherein changes in AF ratios within a tooth are quantified and serve as indicators of early stage enamel demineralization. The techniques described herein may be used in conjunction with a scanning fiber endoscope (SFE) to provide a reliable, safe and low-cost means for identifying dental caries or decays.

公开(公告)号：US10054482B2

公开(公告)日：2018-08-21

申请号：US14858745

申请日：2015-09-18

Applicant: Antonio Maccari

Inventor： Antonio Maccari

IPC: G01B11/14 ,  G01J3/02 ,  G01J3/06 ,  G01J3/50

CPC classification number: G01J3/0202 ,  G01J3/0289 ,  G01J3/0291 ,  G01J3/06 ,  G01J3/50

Abstract: A tool for positioning a scanning device provided with a spectrometer comprises a support having a resting zone suitable for being rested onto a surface, a fixing arrangement for fixing the scanning device to the tool. The support is so dimensioned as to leave uncovered an operative zone in which the spectrometer is movable for acquiring an image provided on a substrate, so that the spectrometer can acquire the image while the support is resting directly on the substrate. The tool further comprises a vision device comprising a video camera for recording the image and a control unit that controls the video camera, the control unit being programmed to recognise pre-established points of the image recorded by the video camera.

公开(公告)号：US09958325B2

公开(公告)日：2018-05-01

申请号：US15624008

申请日：2017-06-15

Applicant: Metal Power Analytical (I) Pvt. Ltd.

Inventor： Priyadarshan Divyadarshan Pant

IPC: G01J3/28 ,  G01J3/06 ,  G01J3/02 ,  G01J3/04 ,  G01J3/443 ,  G01N21/31 ,  G01N21/33 ,  G01J3/18 ,  G01J3/32

CPC classification number: G01J3/06 ,  G01J3/0218 ,  G01J3/0232 ,  G01J3/04 ,  G01J3/18 ,  G01J3/2803 ,  G01J3/32 ,  G01J3/443 ,  G01J2003/045 ,  G01J2003/061 ,  G01J2003/065 ,  G01J2003/282 ,  G01N21/3103 ,  G01N21/33 ,  G01N2201/0826

Abstract: The present disclosure relates to the field of optical systems. The envisaged multi-scan optical system is compact and stable. The system comprises an excitation source, a hydra fiber cable, a wavelength selector, an optical element, and a detector. The excitation source is configured to emit composite light. The hydra fiber cable has a head and a plurality of tentacles, and is configured to receive the composite light via a second lens. The plurality of tentacles is configured to emit the composite light towards the wavelength selector which includes a plurality of optical slits (s1-s8) and a plurality of shutters. The wavelength selector is configured to selectively collect and filter the composite light directed by a first lens and the plurality of tentacles by means of the plurality of shutters. The detector is configured to detect the plurality of spectral line scans reflected by the optical element for spectrometric analysis.