公开(公告)号：US11903699B2

公开(公告)日：2024-02-20

申请号：US17203087

申请日：2021-03-16

Applicant: Rijul Gupta

Inventor： Rijul Gupta

IPC: A61B5/1455 ,  A61B5/145 ,  G01J3/00 ,  A61B5/00 ,  G01N21/31 ,  G01N21/47 ,  G01J3/28 ,  G01N21/49 ,  G01J3/02 ,  G01J3/10 ,  G01J3/427 ,  G01J3/457

CPC classification number: A61B5/1455 ,  A61B5/0059 ,  A61B5/0075 ,  A61B5/14532 ,  A61B5/14546 ,  A61B5/6826 ,  A61B5/7267 ,  A61B5/7475 ,  G01J3/00 ,  G01J3/0262 ,  G01J3/10 ,  G01J3/28 ,  G01J3/427 ,  G01J3/457 ,  G01N21/31 ,  G01N21/474 ,  G01N21/49 ,  G01J2003/102 ,  G01N2021/3155 ,  G01N2021/3181

Abstract: A multi-channel measurement device for measuring properties of human tissue, may comprise a microcontroller and first and second source/sensor complexes. The first source/sensor complex may include a first housing having a first measurement portion, a first light sensor coupled to the microcontroller and exposed to the first measurement portion, and a first plurality of light sources coupled to the microcontroller and exposed to the first measurement portion. The second source/sensor complex may include a second housing having a second measurement portion, a second light sensor coupled to the microcontroller and exposed to the second measurement portion, and a second plurality of light sources coupled to the microcontroller and exposed to the second measurement portion. The first and second source/sensor complexes are coupled to each other such that the first measurement portion is opposite the second measurement portion and human tissue may be placed between the first and second measurement portions. The microprocessor is configured with instructions stored in non-volatile memory to individually activate each of the light sources of the first and second pluralities of light sources and to record light intensity detected by the first and second light sources while an individual light source is activated. Each combination of an individually activated light source and one of the first and second light sensors provides a distinct measurement channel for measuring the absorption spectra of human blood and tissue.

公开(公告)号：US20240011830A1

公开(公告)日：2024-01-11

申请号：US18311748

申请日：2023-05-03

Applicant: Photothermal Spectroscopy Corp

Inventor： Derek Decker ,  Craig Prater

IPC: G01J3/02 ,  G01J3/10

CPC classification number: G01J3/0297 ,  G01J3/0216 ,  G01J3/0229 ,  G01J3/108 ,  G01J2003/102

Abstract: Apparatuses and methods for microscopic analysis of a sample using spatial light manipulation to increase signal to noise ratio are described herein.

公开(公告)号：US11860106B1

公开(公告)日：2024-01-02

申请号：US18302954

申请日：2023-04-19

Applicant: Sanguis Corporation

Inventor： Jeffrey Owen Katz

IPC: G01J3/44 ,  G01N21/65 ,  G01J3/10 ,  G01J3/06

CPC classification number: G01N21/65 ,  G01J3/06 ,  G01J3/10 ,  G01J3/44 ,  G01J2003/064 ,  G01J2003/102 ,  G01J2003/4424 ,  G01N2021/655 ,  G01N2201/0691

Abstract: A system for high gain stimulated Raman spectroscopy comprises a first continuous wave laser having an output beam at a tunable optical frequency modulated at a first RF frequency, a second continuous wave laser having a second output beam at an optical frequency modulated at a second RF frequency, wherein the modulation frequencies are selected such that their beat notes represent a Raman resonance frequency, a dual-beam rasterizing probe including first and second photosensors and a rasterizer configured to scan the first and second laser output beams onto a sample, exposing the sample to a reduced average power of laser radiation stimulating the sample to emit Raman radiation signals. The Raman signals are directed to the photosensors and the outputs of the photosensors are supplied to a differential amplifier configured to provide sensitivity and gain to signals at the beat note resonant frequency and to filter signals at other frequencies.

公开(公告)号：US20230168124A1

公开(公告)日：2023-06-01

申请号：US17906891

申请日：2021-03-17

Applicant: Tokyo Electron Limited

Inventor： Yasutoshi UMEHARA

IPC: G01J3/10 ,  G01J3/02

CPC classification number: G01J3/10 ,  G01J3/0216 ,  G01J2003/102

Abstract: A spectroscopic analysis system includes a light source including a light emitting diode (51X), a wavelength converter (52X) configured to convert a wavelength of light output from the light emitting diode (51X), and a condenser (54X) configured to condense light output from the wavelength converter (52X), the light source including a mixing section configured to mix light output from the plurality of light emitting elements, and the wavelength of the light output from the plurality of light emitting elements being different, and a spectroscopic measurement section configured to acquire spectroscopic data by dispersing light reflected from an object on which the light source emits the light.

公开(公告)号：US20190080451A1

公开(公告)日：2019-03-14

申请号：US16093232

申请日：2017-04-12

Applicant: TCMS Transparent Beauty, LLC

Inventor： David C. Iglehart ,  Albert D. Edgar

IPC: G06T7/00 ,  G06K9/32 ,  G06K9/46 ,  G01J3/50 ,  A61B5/00

CPC classification number: G06T7/0012 ,  A61B5/4547 ,  A61C19/04 ,  A61C19/063 ,  A61C19/066 ,  G01J3/0224 ,  G01J3/027 ,  G01J3/10 ,  G01J3/108 ,  G01J3/508 ,  G01J2003/102 ,  G01J2003/2813 ,  G06K9/3233 ,  G06K9/46 ,  G06T7/73 ,  G06T2207/30036

Abstract: Methods, systems, and apparatus, including computer programs encoded on a computer storage medium, for receiving an image of the area of the mouth. Identifying a feature of interest within the image. Determining an actual reflectance and an actual topology of the feature of interest. Determining a desired reflectance and a desired topology of the feature of interest. Calculating an amount of DCA to be applied to a portion of the feature of interest based on comparing the actual reflectance to the desired reflectance and the actual topology to the desired topology. Causing the calculated amount of DCA to be applied to the portion of the feature of interest.

公开(公告)号：US20180180404A1

公开(公告)日：2018-06-28

申请号：US15388743

申请日：2016-12-22

Applicant: The Boeing Company ,  FemtoMetrix, Inc.

Inventor： Jeffrey H. Hunt ,  Jianing Shi ,  John Paul Changala

IPC: G01B11/24

CPC classification number: G01B11/24 ,  G01J3/10 ,  G01J3/108 ,  G01J3/44 ,  G01J2003/102 ,  G01N21/636 ,  G01N21/65 ,  G01N2021/638 ,  G01N2021/655 ,  G01N2201/103 ,  G01N2201/105

Abstract: Surface sensing systems and methods for imaging a scanned surface of a sample via sum-frequency vibrational spectroscopy are disclosed herein. The systems include a sample holder, a visible light source configured to direct a visible light beam incident upon a sampled location of the scanned surface and a tunable IR source configured to direct a tunable IR beam coincident with the visible light beam upon the sampled location. The systems also include a scanning structure configured to scan the visible light beam and the tunable IR beam across the scanned surface, and a light filter configured to receive an emitted beam from the scanned surface and to filter the emitted beam to generate a filtered light beam. The systems further include a light detection system configured to receive the filtered light beam, and an alignment structure. The methods include methods of operating the systems.

公开(公告)号：US09976904B2

公开(公告)日：2018-05-22

申请号：US15206266

申请日：2016-07-09

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Seiji Nishiwaki

IPC: G01J3/453 ,  G01J3/02 ,  G01J3/10

CPC classification number: G01J3/4531 ,  G01J3/0205 ,  G01J3/0208 ,  G01J3/0229 ,  G01J3/10 ,  G01J2003/102 ,  G01J2003/104 ,  G01J2003/4538

Abstract: In one aspect, an apparatus includes a first light source that applies first light having a first wavelength as a center wavelength to an object, a second light source that applies second light having a second wavelength as a center wavelength longer than the first wavelength to the object, an optical filter that includes first and second regions and that transmits third light produced by the first and second light each passed through or reflected by the object, first and second optical detectors that determine first and second amounts, respectively, of the third light passed through the first and second regions. The transmission ranges of spectral transmission curves of the first and second regions are located between the first wavelength and the second wavelength. The spectral transmission curve of the first region has a width at half maximum different from that of the spectral transmission curve of the second region.

公开(公告)号：US20180120162A1

公开(公告)日：2018-05-03

申请号：US15546458

申请日：2016-04-15

Applicant: WENZHOUJIAYI INSTRUMENTS Co. Ltd.

Inventor： Jiayi QIU ,  Changjun LI ,  Guolin LEI ,  Jianda SHI ,  Yingsheng ZHAN

IPC: G01J3/46 ,  G01J3/52 ,  G01J3/10 ,  G01J3/50 ,  G01J3/51

CPC classification number: G01J3/463 ,  G01J3/10 ,  G01J3/50 ,  G01J3/501 ,  G01J3/51 ,  G01J3/524 ,  G01J2003/102

Abstract: The present invention discloses a method for performing color measurement using a standard light source color matching observation box. The method comprises: arranging a halogen tungsten lamp and a light filter in the color matching observation box for cooperation, wherein the light ray of the halogen tungsten lamp emits a main body radiation light ray through the light filter; arranging a plurality of narrow-wave LED light sources of different light-emitting wavelengths to emit a compensation light ray; mixing the main body radiation light ray and the compensation light ray in the color matching observation box into a mixed light ray that uniformly simulates a standard D illuminant; and performing a color measurement on a measured object in the color matching observation box by the mixed light ray.

公开(公告)号：US09903757B1

公开(公告)日：2018-02-27

申请号：US15275172

申请日：2016-09-23

Applicant: HRL Laboratories, LLC

Inventor： Daniel Yap ,  Brian Neff

IPC: G01J3/10 ,  G01J3/02 ,  G01J3/42 ,  G01N21/39 ,  G01N21/35 ,  G01N21/94

CPC classification number: G01J3/108 ,  G01J3/0208 ,  G01J3/42 ,  G01J2003/102 ,  G01N21/35 ,  G01N21/39 ,  G01N21/94 ,  G01N2021/399 ,  G01N2201/067

Abstract: A sensor includes a plurality of transmitter units, a photodetector, and an optical system coupled to the plurality of transmitter units and the photodetector. Each of the transmitter units simultaneously transmits a light beam having a plurality of wavelengths, the optical system directs the light beam from each of the transmitter units onto a same illuminated spot on a probed surface, and the optical system collects light from the same illuminated spot and directs the light to the photodetector.

公开(公告)号：US09810825B2

公开(公告)日：2017-11-07

申请号：US13942306

申请日：2013-07-15

Applicant: The University of North Carolina at Chapel Hill

Inventor： J. Christopher Clemens ,  Darragh Evelyn Anthony Adam O'Donoghue

IPC: G02B5/32 ,  G01J3/18 ,  B29D11/00 ,  G01J3/02 ,  G01J3/10 ,  G01J3/45 ,  G03H1/00 ,  G03H1/02 ,  G03H1/04 ,  G03H1/18

CPC classification number: G02B5/32 ,  B29D11/00769 ,  G01J3/021 ,  G01J3/10 ,  G01J3/1838 ,  G01J3/45 ,  G01J2003/102 ,  G01J2003/452 ,  G03H1/0005 ,  G03H1/0248 ,  G03H1/041 ,  G03H1/181 ,  G03H2001/026 ,  G03H2001/0439 ,  G03H2001/185

Abstract: The subject matter described herein includes a curved VPH grating with tilted fringes and spectrographs, both retroreflective and transmissive, that use such gratings. A VPH grating according to the subject matter described herein includes a first curved surface for receiving light to be diffracted. The grating includes an interior region having tilted fringes to diffract light that passes through the first surface. The grating further includes a second curved surface bounding the interior region on a side opposite the first surface and for passing light diffracted by the fringes.