公开(公告)号：US11971303B2

公开(公告)日：2024-04-30

申请号：US18320172

申请日：2023-05-18

Applicant: WUHAN UNIVERSITY

Inventor： Ruyi Wei

IPC: G01J3/453 ,  G01J3/02 ,  G01J3/06 ,  G01J3/28

CPC classification number: G01J3/4535 ,  G01J3/0208 ,  G01J3/021 ,  G01J3/06 ,  G01J3/2823 ,  G01J2003/062 ,  G01J2003/064 ,  G01J2003/4538

Abstract: The present invention belongs to the field of optical technology, disclosing a quadrilateral common-path time-modulated interferometric spectral imaging device and method. The present invention sets up a moving mirror scanning mechanism in a quadrilateral common path interferometer for generating optical path differences that vary with time, so that the quadrilateral common-path time-modulated interferometric spectral imaging device operates in the staring observation mode. The invention can make the quadrilateral common-path time-modulated interferometric spectral imaging device not only retain the advantages of common optical path spectroscopic technology, but also obtain high spectral resolution.

公开(公告)号：US11965781B2

公开(公告)日：2024-04-23

申请号：US18312730

申请日：2023-05-05

Applicant: Sanguis Corporation

Inventor： Jeffrey Owen Katz

IPC: G01J3/44 ,  G01J3/02 ,  G01J3/06 ,  G01N21/65 ,  G01N33/49

CPC classification number: G01J3/4412 ,  G01J3/0202 ,  G01J3/021 ,  G01J3/0218 ,  G01J3/0275 ,  G01J3/06 ,  G01N21/65 ,  G01N33/492 ,  G01J2003/062 ,  G01J2003/064

Abstract: A system for non-invasively interrogating an in vivo sample for measurement of analytes comprises a pulse sensor coupled to the in vivo sample for detect a blood pulse of the sample and for generating a corresponding pulse signal, a laser generator for generating a laser radiation having a wavelength, power and diameter, the laser radiation being directed toward the sample to elicit Raman signals, a laser controller adapted to activate the laser generator, a spectrometer situated to receive the Raman signals and to generate analyte spectral data; and a computing device coupled to the pulse sensor, laser controller and spectrometer which is adapted to correlate the spectral data with the pulse signal based on timing data received from the laser controller in order to isolate spectral components from analytes within the blood of the sample from spectral components from analytes arising from non-blood components of the sample.

公开(公告)号：US20240011833A1

公开(公告)日：2024-01-11

申请号：US18343129

申请日：2023-06-28

Applicant: HITACHI HIGH-TECH SCIENCE CORPORATION

Inventor： Akihiro Nojima ,  Yusuke Kaga ,  Takuya Kambayashi ,  Jun Horigome ,  Kai Maruyama

IPC: G01J3/44 ,  G01J3/02 ,  G01J3/06

CPC classification number: G01J3/4406 ,  G01J3/027 ,  G01J3/06 ,  G01J3/0264 ,  G01J2003/064 ,  G01J2003/068 ,  G01J2003/2836

Abstract: A spectroscopic analysis system includes: an operation panel configured to receive an input of at least one of an upper limit value of a measurement period of a spectroscopic analysis spectrum or a lower limit value of measurement accuracy as a user setting condition related to measurement of the spectroscopic analysis spectrum of a sample; and a control unit configured to derive a predetermined recommended measurement condition that satisfies the user setting condition and cause a display unit to display the recommended measurement condition, in which the recommended measurement condition is at least one of a wavelength range of light to be used for measurement of the spectroscopic analysis spectrum, a sampling interval of a wavelength of the light, a slit width of a diffraction grating of a spectroscope that disperses the light, or a sweep speed of the wavelength of the light.

公开(公告)号：US11800981B2

公开(公告)日：2023-10-31

申请号：US16949466

申请日：2020-10-30

Applicant: Colgate-Palmolive Company

Inventor： Deborah Ann Peru ,  Hrebesh Molly Subhash

IPC: A61B5/00 ,  G01J3/02 ,  G02B6/04 ,  G01J3/06 ,  A61B5/145 ,  A61B5/1455 ,  G01J3/08 ,  G01J3/10 ,  G01N21/25 ,  G01J3/18 ,  G01J3/36 ,  G01N21/31 ,  G01J3/32

CPC classification number: A61B5/0075 ,  A61B5/0062 ,  A61B5/0088 ,  A61B5/14546 ,  A61B5/14551 ,  A61B5/4875 ,  G01J3/021 ,  G01J3/024 ,  G01J3/0205 ,  G01J3/027 ,  G01J3/0208 ,  G01J3/0218 ,  G01J3/0221 ,  G01J3/0229 ,  G01J3/0264 ,  G01J3/0291 ,  G01J3/06 ,  G01J3/08 ,  G01J3/10 ,  G01J3/18 ,  G01J3/32 ,  G01J3/36 ,  G01N21/255 ,  G01N21/31 ,  G02B6/04 ,  A61B5/441 ,  A61B5/4872 ,  A61B2562/0233 ,  G01J2003/061 ,  G01J2003/065 ,  G01J2003/066 ,  G01N2201/0826 ,  G01N2201/0833 ,  G01N2201/0846

Abstract: A spectroscopic system may include: a probe having a probe tip and an optical coupler, the optical coupler including an emitting fiber group and first and second receiving fiber groups, each fiber group having a first end and a second end, wherein the first ends of the fiber groups are formed into a bundle and optically exposed through the probe tip; a light source optically coupled to the second end of the emitting fiber group, the light source emitting light in at least a first waveband and a second waveband, the second waveband being different from the first waveband; a first spectrometer optically coupled to the second end of the first receiving fiber group and configured to process light in the first waveband; and a second spectrometer optically coupled to the second end of the second receiving fiber group and configured to process light in the second waveband.

公开(公告)号：US11740126B2

公开(公告)日：2023-08-29

申请号：US17351067

申请日：2021-06-17

Applicant: Apple Inc.

Inventor： Trent D. Ridder ,  Mark Alan Arbore ,  Gary Shambat ,  Robert Chen ,  David I. Simon ,  Miikka M. Kangas

IPC: G01J3/427 ,  G01J3/10 ,  G01J3/28 ,  G01J3/42 ,  G01J3/06 ,  G01N21/25 ,  G01N21/35

CPC classification number: G01J3/427 ,  G01J3/06 ,  G01J3/10 ,  G01J3/108 ,  G01J3/2803 ,  G01J3/2846 ,  G01J3/42 ,  G01N21/25 ,  G01N21/35

Abstract: Methods and systems for measuring one or more properties of a sample are disclosed. The methods and systems can include multiplexing measurements of signals associated with a plurality of wavelengths without adding any signal independent noise and without increasing the total measurement time. One or more levels of encoding, where, in some examples, a level of encoding can be nested within one or more other levels of encoding. Multiplexing can include wavelength, position, and detector state multiplexing. In some examples, SNR can be enhanced by grouping together one or more signals based on one or more properties including, but not limited to, signal intensity, drift properties, optical power detected, wavelength, location within one or more components, material properties of the light sources, and electrical power. In some examples, the system can be configured for optimizing the conditions of each group individually based on the properties of a given group.

公开(公告)号：US20230124587A1

公开(公告)日：2023-04-20

申请号：US18081971

申请日：2022-12-15

Applicant: Cymer, LLC

Inventor： Eric Anders Mason

IPC: G02B27/42 ,  G01J3/06 ,  G01J3/14 ,  G01J3/18 ,  G03F7/20 ,  H01S3/08 ,  G02B26/00 ,  H01L21/027 ,  H01S3/00 ,  H01S3/23

Abstract: A spectral feature selection apparatus includes a dispersive optical element arranged to interact with a pulsed light beam; three or more refractive optical elements arranged in a path of the pulsed light beam between the dispersive optical element and a pulsed optical source; and one or more actuation systems, each actuation system associated with a refractive optical element and configured to rotate the associated refractive optical element to thereby adjust a spectral feature of the pulsed light beam. At least one of the actuation systems is a rapid actuation system that includes a rapid actuator configured to rotate its associated refractive optical element about a rotation axis. The rapid actuator includes a rotary stepper motor having a rotation shaft that rotates about a shaft axis that is parallel with the rotation axis of the associated refractive optical element.

公开(公告)号：US11422031B2

公开(公告)日：2022-08-23

申请号：US15930296

申请日：2020-05-12

Applicant: Tsinghua University

Inventor： Xiao-Ping Zheng ,  Bin Cao ,  Hua Geng ,  Xiao-Jiao Deng

IPC: G01J3/06 ,  G01J3/28 ,  G06V10/40 ,  G06V10/58

Abstract: A method for collecting and processing terahertz spectral imaging data includes: scanning an object to generate terahertz spectral data having a hyper- or low-spectral resolution respectively at a plurality of pixel points; collecting the terahertz spectral data and recording coordinate data of each pixel point, thereby obtaining a mixed data including a hyper-spectral data and a low-spectral data corresponding to different pixel points; constructing a hyper-spatial and low-spectral imaging data-cube from the mixed data; extracting a hyper-spectral data-set from the mixed data; and reconstructing a hyper-spatial and hyper-spectral imaging data-cube from the hyper-spatial and low-spectral imaging data-cube based on the hyper-spectral data-set. A terahertz spectral imaging apparatus is further provided.

公开(公告)号：US11378450B2

公开(公告)日：2022-07-05

申请号：US16713398

申请日：2019-12-13

Applicant: Lightsense Technology, Inc.

Inventor： Wade Martin Poteet ,  Terje A. Skotheim

IPC: G01J3/10 ,  G01N21/35 ,  G01J3/18 ,  G01J3/02 ,  G01J3/433 ,  G01J3/28 ,  G01J3/42 ,  G01J3/06

Abstract: Systems and methods for measuring a fundamental mode vibrational spectrum of materials and substances in the Mid-IR spectral range of 2.5 μm to 14 μm wavelength. are disclosed herein. In one embodiment, a Mid-infrared absorption spectrometer (MIRAS) system includes an infrared Micro-Electro-Mechanical System (MEMS) single element emitter light source. The light source is electrically pulsed and emits electromagnetic radiation in the wavelength range from 2.5 μm to 14 μm and has an integral energy concentrating optic to provide energy for a spectral absorption process. The system includes a scanning high-efficiency infrared spectral grating with self-calibrating feature, configured so that incident energy having absorption information for the spectral absorption process of a sample is within a predefined threshold of a grating blaze angle. The system also includes a single-element thermal detector to receive output energy having the absorption information from the infrared spectral grating.

公开(公告)号：US11333552B2

公开(公告)日：2022-05-17

申请号：US16803210

申请日：2020-02-27

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: G01J3/28 ,  G01J3/02 ,  G01J3/10 ,  G01J3/26 ,  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：US11287320B2

公开(公告)日：2022-03-29

申请号：US16615151

申请日：2018-05-14

Applicant: HAMAMATSU PHOTONICS K.K.

Inventor： Yoshihisa Warashina ,  Kei Tabata

IPC: G01J3/26 ,  G02B5/28 ,  G02B26/00 ,  G01J3/06 ,  G01J3/28 ,  G02B26/08 ,  G02B6/293

Abstract: Provided is a filter controlling expression derivation method including: preparing a Fabry-Perot interference filter of which distance between a fixed mirror and a movable mirror is controlled by balancing an electrostatic force and an elastic force; deriving a relational expression between a deflection amount and an elasticity index in which the elasticity index of the movable mirror is described as a quadratic or higher-order polynomial with the deflection amount of the movable mirror as a variable by performing predetermined measurement; and deriving a relational expression between a transmission wavelength of light transmitted through the Fabry-Perot interference filter and the voltage as a filter controlling expression based on the relational expression between the deflection amount and the elasticity index and a relational expression between the electrostatic force and the elastic force.