公开(公告)号：US20210088383A1

公开(公告)日：2021-03-25

申请号：US16970377

申请日：2019-03-12

Applicant: OMRON Corporation

Inventor： Kazuya KIMURA ,  Masayuki HAYAKAWA

IPC: G01J3/26 ,  G01J3/36 ,  G01J3/51 ,  G01B11/00

Abstract: The present invention provides a wavelength detection device (10) provided with: a plurality of optical filters (12a, 12b); a splitting unit (11) which splits light and allows the split light to pass through each of the plurality of optical filters (12a, 12b); a plurality of light receiving elements (13a, 13b) which detect the intensities of different beams of light which have passed through the optical filters, respectively; and a calculation unit (16) which calculates, from the outputs of the plurality of light receiving elements, physical quantities related to the transmittances of the plurality of optical filters, and calculates the wavelengths of the beams of light which have passed through the plurality of optical filters, on the basis of the transmittance characteristics, wherein the transmittance characteristics of the plurality of optical filters have an inclination section in different wavelength ranges of the wavelength range of the object to be measured.

公开(公告)号：US10942065B2

公开(公告)日：2021-03-09

申请号：US16746588

申请日：2020-01-17

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: G01J3/02 ,  G01J3/10 ,  G01N21/25 ,  G01J3/12 ,  G01J3/28 ,  G01J3/36 ,  G01J5/02 ,  G01J5/10 ,  G01N33/02 ,  G01J3/26 ,  G01J3/45

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.

公开(公告)号：US20210025753A1

公开(公告)日：2021-01-28

申请号：US16878807

申请日：2020-05-20

Applicant: VERIFOOD, LTD.

Inventor： Damian GOLDRING ,  Dror SHARON

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

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：US10900772B2

公开(公告)日：2021-01-26

申请号：US16818156

申请日：2020-03-13

Applicant: 15 Seconds of Fame, Inc.

Inventor： Ruslan Sabitov ,  Alexander Betser ,  Adam Resnick ,  E. Michael Huestis ,  Brett Terry Joshpe

IPC: G01B11/14 ,  G01J3/453 ,  G06K9/00 ,  G01J3/28 ,  G01J3/26

Abstract: An apparatus includes a memory, a communication interface in communication with the memory and configured to communicate via a network, and a processor in communication with the memory and the communication interface. The processor receives facial image data associated with a user of a client device, registers the facial image data, and stores the facial image data and contextual data associated with the user in a database. The processor also receives video stream data from at least one image capture device in communication with the network, analyzes the video stream data and contextual data associated with the video stream data to define analyzed video data and analyzed contextual data, respectively, and defines a confidence level based on comparing the data associated with the video stream data to the data stored in the database. The processor defines a user-specific contextual video stream when the confidence level satisfies a criterion.

公开(公告)号：US20210018663A1

公开(公告)日：2021-01-21

申请号：US17062081

申请日：2020-10-02

Applicant: Santec Corporation

Inventor： Yasuki Sakurai

IPC: G02B5/28 ,  G02B6/293 ,  G01J3/26 ,  G02B6/12 ,  G02B6/42

Abstract: A tunable filter includes: a first transparent substrate including a first reflective surface; a second transparent substrate including a second reflective surface that opposes the first reflective surface; and a supporting member, connected to the first transparent substrate, that supports the second transparent substrate on the first transparent substrate so that the second reflective surface is disposed at a position separated from the first reflective surface in a normal direction of the first reflective surface. A cavity between the first reflective surface and the second reflective surface forms an etalon. A relative position of the second transparent substrate with respect to the first transparent substrate changes due to thermal expansion of the supporting member, and a length of the cavity changes in the normal direction.

公开(公告)号：US10895529B2

公开(公告)日：2021-01-19

申请号：US16478508

申请日：2018-01-22

Applicant: NEC Corporation

Inventor： Akihiro Tanaka

IPC: G01N21/3504 ,  G01N21/27 ,  G01N21/31 ,  G01J3/26 ,  H04B10/116

Abstract: In order to distinguish between a deterioration in a received optical signal strength resulting from optical axis deviation, and a deterioration in the received optical signal strength due to the effects of dust and the like, this detecting system is provided with: a transmitter provided with a light emitting unit for transmitting a first optical signal and a second optical signal having mutually different wavelengths and divergence angles; and a receiver provided with a detecting unit for receiving the first and second optical signals and outputting a first reception signal indicating the reception strength of the first optical signal, and a second reception signal indicating the reception strength of the second optical signal, and an identification unit for determining a state of propagation of the first and second optical signals on the basis of an amount of variation in the first and second reception signals.

公开(公告)号：US10895526B2

公开(公告)日：2021-01-19

申请号：US16189371

申请日：2018-11-13

Applicant: Endress+Hauser Conducta GmbH+Co. KG

Inventor： Joachim Mannhardt ,  Judith Falk ,  Monika Heisterkamp

IPC: G01J3/26 ,  G01N21/25 ,  G01N21/85 ,  G01J3/00 ,  G01N21/31 ,  G01N21/65 ,  G01N21/53 ,  G01N21/64 ,  H04N5/378

Abstract: The present disclosure relates to a measuring apparatus for analyzing a measuring medium. The measuring apparatus includes a probe housing, a radiation source, and coupling and decoupling optics. The optics have a measurement window in the probe housing to direct radiation of the radiation source into a measuring region outside the probe housing and including the measuring medium, and to block measuring radiation from the measuring region. Via the optics, a receiving device detects measuring radiation and generates output data. An additional physical or chemical sensor is integrated into the probe housing and is designed to detect a measurand of the measuring medium and output measurement signals. An electronic measurement unit is configured to collect and process the output data of the receiving device and the measurement signals of the additional physical or chemical sensor.

公开(公告)号：US20200379270A1

公开(公告)日：2020-12-03

申请号：US16768506

申请日：2018-05-02

Applicant: Agilent Technologies, Inc.

Inventor： Sean M. Kent ,  Lindsay Buck

IPC: G02B27/42 ,  G02B17/06 ,  G02B27/30 ,  G02B27/10 ,  G02B27/00 ,  G01J3/12 ,  G01J3/18 ,  G01J3/26 ,  G01J3/02

Abstract: A polychromator system comprising: an optical element defining an aperture; a collimation mirror for receiving light via the aperture and reflecting substantially collimated light; at least a first dispersive optical component and a second dispersive optical component, each configured to disperse the substantially collimated light received from the collimation mirror by different amounts for different wavelengths and to provide cross-dispersed light having different wavelengths of light spaced along a first and second axis; and a focus mirror positioned to focus the cross-dispersed light onto a 2-D array detector to provide a plurality of aperture images of the aperture at a respective plurality of regions of the detector, each of the plurality of aperture images associated with a respective wavelength of the cross-dispersed light. Either one or both of the collimation mirror and the focus mirror is a freeform mirror having a reflective surface configured to mitigate effects of optical aberrations of the polychromator system over a plurality of the wavelengths of the cross-dispersed light along the first axis and the second axis and thereby optimise the resolution of the plurality of aperture images associated with the plurality of the wavelengths along the first axis and the second axis.

公开(公告)号：US10852189B2

公开(公告)日：2020-12-01

申请号：US16079654

申请日：2017-02-24

Applicant: The Regents of the University of California

Inventor： Zhaowei Liu ,  Qian Ma ,  Eric Huang

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

Abstract: A spectrometry system may include an etalon array having a first etalon and a second etalon. The first etalon may be configured to process light to at least generate a first transmission pattern. The first transmission pattern may have at least a first transmission peak corresponding to a first wavelength in an original spectrum of the light. The second etalon may be configured to process the light to at least generate a second transmission pattern. The second transmission pattern may have at least a second transmission peak corresponding to a second wavelength in the original spectrum of the light. The first etalon may have a different thickness than the second etalon in order for the first transmission pattern to have at least one transmission peak that is at a different wavelength than the second transmission pattern. The first transmission pattern and the second transmission pattern may enable a reconstruction the original spectrum of the light.

公开(公告)号：US10823615B2

公开(公告)日：2020-11-03

申请号：US15749751

申请日：2016-08-04

Applicant: Agency for Science, Technology and Research

Inventor： Zi En Ooi ,  Jie Zhang ,  Siew Lay Lim

IPC: G01J3/28 ,  G01J3/26 ,  G01J3/02

Abstract: Various embodiments provide a hyperspectral imaging apparatus. The hyperspectral imaging apparatus includes a micro-lens array having a plurality of micro-lenses; and a filter array having a plurality of tunable filters. Each of the plurality of tunable filters is optically coupled to a respective micro-lens of the plurality of micro-lenses. Each micro-lens and the corresponding coupled tunable filter are configured to generate a spectrally filtered image of a scene, such that the micro-lens array and the filter array generate a plurality of spectrally filtered images of the scene for receiving by a plurality of areas of an image sensor. Each of the plurality of tunable filters is tunable to transmit a selected wavelength within a respective spectral band, wherein the spectral bands of the plurality of tunable filters are different from each other.