公开(公告)号：US20180073923A1

公开(公告)日：2018-03-15

申请号：US15677606

申请日：2017-08-15

Applicant: Otsuka Electronics Co., Ltd.

Inventor： Nobuyuki INOUE ,  Taku NAGASHIMA

IPC: G01J3/02 ,  G01N21/359

CPC classification number: G01J3/027 ,  G01J3/0218 ,  G01J3/0221 ,  G01J3/0264 ,  G01J3/28 ,  G01J3/2803 ,  G01J2003/2876 ,  G01N21/274 ,  G01N21/359

Abstract: There is provided an optical measurement method using a detector having a detection sensitivity to at least a near-infrared region. The optical measurement method including: obtaining an output value by measuring a light sample at any exposure time with the detector; and correcting the output value with an amount of correction corresponding to the output value, when the exposure time at which the output value is obtained is within a second range. The amount of correction includes a product of a coefficient and a square of the exposure time, the coefficient indicating a degree to which an output value obtained when the light sample is measured with the detector at an exposure time within the second range deviates from output linearity obtained when the light sample is measured with the detector at an exposure time within a first range.

公开(公告)号：US20180031421A1

公开(公告)日：2018-02-01

申请号：US15614110

申请日：2017-06-05

Applicant: Viavi Solutions Inc.

Inventor： Changmeng HSIUNG ,  Lan SUN ,  Christopher G. PEDERSON

IPC: G01J3/28 ,  G06F17/50

CPC classification number: G01J3/28 ,  G01J3/027 ,  G01J3/0297 ,  G01J2003/2866 ,  G01J2003/2873 ,  G01N21/274 ,  G01N2201/127 ,  G06F17/50

Abstract: A device may obtain a master calibration set, associated with a master calibration model of a master instrument, that includes spectra, associated with a set of samples, generated by the master instrument. The device may identify a selected set of master calibrants based on the master calibration set. The device may obtain a selected set of target calibrants that includes spectra, associated with the subset of the set of samples, generated by the target instrument. The device may create a transfer set based on the selected set of master calibrants and the selected set of target calibrants. The device may create a target calibration set, corresponding to the master calibration set, based on the transfer set. The device may generate, using an optimization technique associated with the transfer set and a support vector regression modeling technique, a transferred calibration model, for the target instrument, based on the target calibration set.

公开(公告)号：US09880390B2

公开(公告)日：2018-01-30

申请号：US15219933

申请日：2016-07-26

Applicant: Alexander Sheung Lai Wong ,  Farnoud Kazemzadeh

Inventor： Alexander Sheung Lai Wong ,  Farnoud Kazemzadeh

IPC: G02B27/10 ,  G01J3/02

CPC classification number: G02B27/10 ,  G01J3/027

Abstract: There is disclosed a novel system and method for improving spectral resolution and signal-to-noise ratio of a captured spectrum by employing digital beam reforming, digital slicing, and digital multiplexing. In an embodiment, the method comprises: and entrance aperture for the light to enter the apparatus, a collimating element (refractive or reflective), a dispersive element (single- or multi-axis), a focusing element (refractive or reflective), and a linear or array detector for acquisition of the spectrum. The spectrum is then digitally beam reformed, digitally beam sliced to increase spectral resolution, and digitally beam multiplexed to increase the signal-to-noise ratio. In addition the disclosed invention is also capable of performing digital beam refocusing which means the optical focusing power can be chosen such that its performance surpasses the performance of any analog optical focusing element thereby further increasing the spectral resolution and the signal-to-noise ratio of the spectrum. The invention can be used as a stand-alone system or can be used in conjunction of any spectrometer even those augmented with optical slicer technologies. The degree of improvement to the spectral resolution is completely tunable and has no bearing of the efficiency of the instrument.

公开(公告)号：US09871981B1

公开(公告)日：2018-01-16

申请号：US15630237

申请日：2017-06-22

Applicant: Robert Bosch GmbH

Inventor： Pedram Lajevardi ,  Rainer Blechschmidt

IPC: H01L27/144 ,  H04N5/33 ,  G01J3/28

CPC classification number: H04N5/332 ,  G01J3/027 ,  G01J3/2803 ,  G01J3/2823 ,  G01J3/36 ,  G01J2003/2826

Abstract: A multi-spectral visual light (VL) and infrared (IR) imaging system and method suitable for use in security cameras, security devices, surveillance cameras, surveillance devices, consumer digital cameras, consumer digital devices, thin clients, thick clients, industrial machine vision systems, automotive cameras, home furnishing cameras, residential cameras, commercial cameras, object detectors, as well as other markets and/or applications is provided. The multi-spectral VL and infrared IR imaging system comprises a plurality of VL imaging sensors, a plurality of infrared (IR) imaging sensors, and a readout assembly operatively connected to the CMOS imaging sensors and the IR imaging sensors, wherein the IR imaging sensors configured to generate thermal signals and operate the CMOS imaging sensors.

公开(公告)号：US20180003558A1

公开(公告)日：2018-01-04

申请号：US15493006

申请日：2017-04-20

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

CPC classification number: G01J3/0291 ,  G01J3/0205 ,  G01J3/0208 ,  G01J3/0216 ,  G01J3/0256 ,  G01J3/0262 ,  G01J3/0264 ,  G01J3/027 ,  G01J3/0272 ,  G01J3/0283 ,  G01J3/0286 ,  G01J3/0297 ,  G01J3/06 ,  G01J3/10 ,  G01J3/26 ,  G01J3/2823 ,  G01J3/32 ,  G01J3/36 ,  G01J2003/2826

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：US09851252B2

公开(公告)日：2017-12-26

申请号：US14407782

申请日：2013-06-09

Applicant: XIDIAN UNIVERSITY

Inventor： Guangming Shi ,  Lizhi Wang ,  Danhua Liu ,  Dahua Gao ,  Guo Li ,  Yang Liu

IPC: G01J3/04 ,  G01J3/28 ,  H04N5/225 ,  H04N5/232 ,  G01J3/02

CPC classification number: G01J3/2823 ,  G01J3/027 ,  G01J2003/2826 ,  H04N5/2254 ,  H04N5/23229

Abstract: A compressive sensing-based multispectral video imager comprises a beamsplitter, a first light channel, a second light channel, and an image reconstruction processor; the beamsplitter is configured to divide the beam of an underlying image into a first light beam and a second light beam; the first light beam enters the first light channel, processed and sampled in the first light channel, to obtain a first mixing spectral image which is transferred to the image reconstruction processor; the second light beam enters the second light channel, processed and sampled in the second light channel, to obtain a second mixing spectral image which is transferred to the image reconstruction processor; the image reconstruction processor is configured to reconstruct the underlying spectral image based on the first mixing spectral image and the second mixing spectral image by using non-linear optimization method.

公开(公告)号：US20170350762A1

公开(公告)日：2017-12-07

申请号：US15681329

申请日：2017-08-18

Applicant: MarqMetrix, Inc.

Inventor： Brian James MARQUARDT ,  John Scott VAN VUREN

IPC: G01J3/44 ,  G01N21/65 ,  G01J3/02 ,  G08B5/36

CPC classification number: G01J3/44 ,  G01J3/0218 ,  G01J3/0264 ,  G01J3/027 ,  G01J3/0272 ,  G01N21/65 ,  G01N2201/0221 ,  G08B5/36

Abstract: Portable analytical equipment, systems, methods, and techniques related thereto is disclosed. Portable analytical equipment can comprise a controller and a probe. The probe can interrogate a sample and receive a response to the interrogation. The controller can select and/or initiate an analysis related to interrogating the sample via the probe. The analysis can be selected from a portfolio of analyses stored on the controller. The controller can analyze the response to the interrogation based on reference data stored on the controller. The controller can determine an indication based on the analyzing the response for presentation via a low-power interface, which can comprise an LED or electrophoretic element. The controller can further be connected to an external device, e.g., a smartphone or remote PC, to present collected data and the analyzing of the response to the interrogation. The disclosed subject matter can be employed in hand-held analytical equipment, e.g., a hand-held Raman spectrometer.

公开(公告)号：US20170299431A1

公开(公告)日：2017-10-19

申请号：US15406968

申请日：2017-01-16

Applicant: Thermo Scientific Portable Analytical Instruments Inc.

Inventor： Timothy M. PASTORE ,  David PEREZ ,  Michael D. HARGREAVES

IPC: G01J3/02 ,  G01J3/42 ,  G01J3/44 ,  G01N21/552 ,  G01N21/39 ,  G01N21/359 ,  G01N21/65 ,  G01N21/71 ,  G01N21/35

CPC classification number: G01J3/0264 ,  G01J3/027 ,  G01J3/0272 ,  G01J3/10 ,  G01J3/28 ,  G01J3/2803 ,  G01J3/42 ,  G01J3/44 ,  G01N21/359 ,  G01N21/552 ,  G01N21/65 ,  G01N21/718 ,  G01N2021/3595 ,  G01N2021/399 ,  G01N2201/0221

Abstract: A hand-held spectrometer includes at least one indicator light and a processor configured to control the at least one indicator light to indicate a state of the hand-held spectrometer selected from a group consisting of a background scanning state, a ready-to-scan-sample state, a signal strength state, a fluorescence intensity state, a sample match state, a sample classification state, an error state, a data transfer state, a battery charge state, and a memory capacity state. The sample match state can be, for example, one of a positive match state, a mixture match state, a negative match state, and a match error state. In some embodiments, the error state can be at least one of a background error state, a user error state, and an instrument error state, or any combination thereof.

公开(公告)号：US09784618B2

公开(公告)日：2017-10-10

申请号：US15292330

申请日：2016-10-13

Applicant: Beijing Information Science & Technology University

Inventor： Lianqing Zhu ,  Wei He ,  Feng Liu ,  Mingli Dong ,  Xiaoping Lou ,  Wei Zhuang ,  Fei Luo

IPC: G01J3/18 ,  G02B26/08 ,  G02B6/02 ,  G02F2/00

CPC classification number: G01J3/1895 ,  G01J3/0208 ,  G01J3/027 ,  G01J3/06 ,  G01J3/1804 ,  G01J3/28 ,  G02B6/02076 ,  G02B26/0808 ,  G02F2/00

Abstract: A fiber grating demodulation system for enhancing spectral resolution by finely adjusting a light splitting grating, includes a laser pump source, a wavelength division multiplexer, a fiber Bragg grating, a diaphragm, a slit, a collimating mirror, a light splitting grating, an imaging focus mirror, and a linear array detector. The laser pump source, the wavelength division multiplexer, the fiber Bragg grating are connected in sequence, the wavelength division multiplexer is connected to the diaphragm. Light emitted from the laser pump source is multiplexed by the wavelength division multiplexer and then enters the fiber Bragg grating, a reflection spectrum of the fiber Bragg grating enters the slit of the fiber grating demodulation system as injected light. After passing through the slit, the injected light is reflected by the collimating mirror, the light splitting grating, and the imaging focus mirror in sequence, and is finally converged to the linear array detector.

公开(公告)号：US09772277B2

公开(公告)日：2017-09-26

申请号：US14758900

申请日：2013-12-25

Applicant: SHIMADZU CORPORATION

Inventor： Takashi Muramatsu ,  Naoji Moriya ,  Naoki Matsuda

IPC: G01N21/39 ,  G01N21/31 ,  G01J3/42 ,  G01J3/02 ,  G01N21/3504

CPC classification number: G01N21/39 ,  G01J3/027 ,  G01J3/10 ,  G01J3/42 ,  G01N21/3103 ,  G01N21/3504 ,  G01N2201/0612

Abstract: Provided is a gas absorption spectroscopic system and gas absorption spectroscopic method capable of accurately measuring the concentration or other properties of gas even in high-speed measurements. Laser light with a varying wavelength is cast into target gas. A spectrum profile representing a change in the intensity of the laser light transmitted through the target gas with respect to wavelength is determined. For this spectrum profile, polynomial approximation is performed at each wavelength point within a predetermined wavelength width, using an approximate polynomial. Based on the coefficients of the terms in the approximate polynomial at each point, an nth order derivative curve, where n is an integer of zero or larger, of the spectrum profile is created. A physical quantity of the target gas is determined based on the thus created nth order derivative curve.