公开(公告)号：US10323982B2

公开(公告)日：2019-06-18

申请号：US15411922

申请日：2017-01-20

Applicant: VERIFOOD, LTD.

Inventor： Damian Goldring ,  Dror Sharon

IPC: G01N21/25 ,  G01J3/02 ,  G01J3/26 ,  G01J3/28 ,  G01J3/36 ,  G01J3/12

Abstract: A compact spectrometer is disclosed that is suitable for use in mobile devices such as cellular telephones. In preferred embodiments, the spectrometer comprises a filter, at least one Fourier transform focusing element, a micro-lens array, and a detector, but does not use any dispersive elements. Methods for using the spectrometer as an end-user device for performing on-site determinations of food quality, in particular, by comparison with an updatable database accessible by all users of the device, are also disclosed.

公开(公告)号：US10267739B2

公开(公告)日：2019-04-23

申请号：US14907992

申请日：2014-07-31

Applicant: Board of Trustees of Michigan State University

Inventor： Marcos Dantus ,  Marshall Thomas Bremer

IPC: G01N21/65 ,  G01J3/44 ,  G01J3/36 ,  G01N33/22 ,  G01J3/02

Abstract: A laser system and method employing stimulated Raman scattering using a main laser pulse and a delayed replica reference pulse are provided. A further aspect calculates stimulated Raman loss and stimulated Raman gain from a reflected laser light scatter collected from a fabric or paper specimen. In another aspect, a laser system receives a low energy portion of a spectrum of main and reference laser pulses with a first photodetector, receives a higher energy portion of the spectrum of the main and reference pulses with a second photodetector, and uses a controller to determine a Raman active phonon transfer of energy manifested as an increase in the reflected laser scatter in a lower energy portion of the spectrum and a decrease in a higher energy portion of the spectrum. In yet another aspect, the controller automatically determines if a hazardous particle or substance such as an explosive, is present on a specimen.

公开(公告)号：US10260944B2

公开(公告)日：2019-04-16

申请号：US16166658

申请日：2018-10-22

Applicant: HAMAMATSU PHOTONICS K.K.

Inventor： Takafumi Yokino ,  Katsumi Shibayama ,  Katsuhiko Kato

IPC: G01J3/28 ,  G01J3/18 ,  G01J3/02 ,  G02B5/18 ,  G01J3/36

Abstract: A spectrometer includes a support having a bottom wall part in which a depression including a concave curved inner surface and a peripheral part adjacent to the depression are provided, and a side wall part disposed on a side on which the depression is open with respect to the bottom wall part, a light detection element supported by the side wall part while opposing the depression, and a dispersive part disposed on the inner surface of the depression. A length of the depression in a second direction in which a plurality of grating grooves included in the dispersive part is aligned is larger than a length of the depression in a third direction orthogonal to the second direction when viewed in a first direction in which the depression and the light detection element oppose each other. An area of the peripheral part adjacent to the depression in the second direction is larger than an area of the peripheral part adjacent to the depression in the third direction when viewed in the first direction.

公开(公告)号：US20190072430A1

公开(公告)日：2019-03-07

申请号：US16180328

申请日：2018-11-05

Applicant: HAMAMATSU PHOTONICS K.K.

Inventor： Takafumi YOKINO ,  Katsumi SHIBAYAMA

IPC: G01J3/18 ,  G01J3/28 ,  G01J3/02 ,  G01J3/36

Abstract: A spectrometer includes a light detection element having a substrate made of a semiconductor material, a light passing part provided in the substrate, and a light detection part put in the substrate, a support having a base wall part opposing the light detection element, and side wall parts integrally formed with the base wall part, the light detection element being fixed to the side wall parts, the support being provided with a wiring electrically connected to the light detection part, and a dispersive part provided on a surface of the base wall part on a side of a space. An end part of the wiring is connected to a terminal of the light detection element. An end part of the wiring is positioned on a surface in the base wall part on an opposite side from the side of the space.

公开(公告)号：US20190064535A1

公开(公告)日：2019-02-28

申请号：US16077507

申请日：2016-02-22

Applicant: Hitachi High-Technologies Corporation

Inventor： Takashi ANAZAWA ,  Motohiro YAMAZAKI

IPC: G02B27/14 ,  G01J3/36 ,  G01J3/02 ,  G02B19/00

Abstract: A dichroic mirror array in which a plurality of dichroic mirrors are arranged, and by satisfying a predetermined relationship between a width, a thickness, a material, a tilt, an interval, and a step difference of each dichroic mirror, the dichroic mirror array is miniaturized, an optical path length is reduced, and at the same time, an opening width is increased.

公开(公告)号：US10215629B2

公开(公告)日：2019-02-26

申请号：US14772970

申请日：2013-12-24

Applicant: EVERFINE PHOTO-E-INFO CO., LTD.

Inventor： Jiangen Pan

IPC: G01J1/44 ,  G01J3/02 ,  G01J1/42 ,  G01J3/28 ,  G01J3/36 ,  G01J1/02

Abstract: The present invention discloses a handheld optical radiation meter and a correction method thereof. The handheld optical radiation meter has a photometric measurement module, a spectral measurement module and a screen. The spectral quantities of the spectral measurement module are employed to correct the spectral mismatch error of the photometric measurement module. With simple configuration, the present invention can realize high accuracy photometry and chromaticity measurement within a wide-span dynamic range, and has the characteristics of complete test functions, high measurement accuracy, convenient operation, low cost, etc.

公开(公告)号：US10190912B2

公开(公告)日：2019-01-29

申请号：US14962100

申请日：2015-12-08

Applicant: Meopta—optika, s.r.o. ,  Univerzita Palackého v Olomouc

Inventor： Josef Kapitán ,  Daniel Vacula ,  Zden{hacek over (e)}k Lo{hacek over (s)}t'ák ,  Vlastislav Svoboda

IPC: G01J3/44 ,  G01J3/28 ,  G01J3/36 ,  G01J3/02

Abstract: An optical system of a high-resolution imaging spectrograph intended for deep ultraviolet Raman spectroscopy, including an entrance aperture constituted by a slit, followed by a collimating objective, with a dispersive element located between the collimating objective and the subsequent focusing objective is provided. A multichannel radiation detector is arranged behind the focusing objective. The collimating objective is formed at least by a main mirror, wherein the focussing objective is formed by a set of lenses. The dispersion element is formed at least by one diffraction grating 4 and/or an optical prism.

公开(公告)号：US20190003891A1

公开(公告)日：2019-01-03

申请号：US16025233

申请日：2018-07-02

Applicant: Thomas A. Mitchell

Inventor： Thomas A. Mitchell

IPC: G01J3/28 ,  G01J3/36 ,  G01J3/02 ,  G01J3/14

CPC classification number: G01J3/2823 ,  G01J3/0208 ,  G01J3/14 ,  G01J3/28 ,  G01J3/36 ,  G01J2003/2826

Abstract: An imaging optical system including a plurality of imaging optical sub-systems, each having at least one optical element and receiving light from a source, and a plurality of spectrometer optical sub-systems, each spectrometer optical sub-system receiving light from at least one of the imaging optical sub-systems, each imaging optical sub-system and spectrometer optical sub-system combination having a spatial distortion characteristic, each spatial distortion characteristic having a predetermined relationship to the other spatial distortion characteristics.

公开(公告)号：US20180364101A1

公开(公告)日：2018-12-20

申请号：US16109382

申请日：2018-08-22

Applicant: Li-Cor, Inc.

Inventor： Serguei Koulikov

IPC: G01J3/433 ,  G01N21/39 ,  G01N21/3504 ,  G01J3/36

Abstract: Systems and methods for detecting trace gases utilize a resonance optical cavity and one, two or more coherent light sources coupled to the cavity through one or more cavity coupling mirrors, whereby two or more optical cavities may share the same gas volume.

公开(公告)号：US20180275325A1

公开(公告)日：2018-09-27

申请号：US16003036

申请日：2018-06-07

Applicant: Hypermed Imaging, Inc.

Inventor： Mark Darty

IPC: G02B5/20 ,  G01J3/02 ,  H04N5/238 ,  H04N5/225 ,  H04N5/33 ,  A61B5/00 ,  G01J3/36 ,  G01J3/28

Abstract: The present disclosure generally relates to hyperspectral spectroscopy, and in particular, to systems, methods and devices enabling a single-sensor hyperspectral imaging device. Hyperspectral (also known as “multispectral”) spectroscopy is an imaging technique that integrates multiples images of an object resolved at different narrow spectral bands (i.e., narrow ranges of wavelengths) into a single data structure, referred to as a three-dimensional hyperspectral data cube. Data provided by hyperspectral spectroscopy allow for the identification of individual components of a complex composition through the recognition of spectral signatures of individual components within the three-dimensional hyperspectral data cube.