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381.发明申请公开(公告)号：US20180172513A1
公开(公告)日：2018-06-21
申请号：US15578903
申请日：2016-06-01
Inventor： Martin Schell , Magnus Happach
CPC classification number: G01J3/26 , G01J3/0205 , G01J3/0208 , G01J3/0229 , G01J3/0256 , G01J3/45 , G01N21/27
Abstract: An optical filter for an optical data transmission system, including a substrate; a first and a second reflective structure which are spaced apart from each other such that they form a Fabry-Perot cavity, and at least one optical waveguide formed on or in the substrate, via which light can be coupled into the Fabry-Perot cavity and/or out of the Fabry-Perot cavity. The Fabry-Perot cavity formed by the first and the second reflective structure at least partly is a free-beam cavity, and the waveguide is an integrated waveguide which is formed by one or more layers arranged on the substrate, and the first and the second reflective structure are at least partly arranged in a cutout of the substrate or adjoin the cutout.
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公开(公告)号：US09970819B2
公开(公告)日：2018-05-15
申请号：US15009755
申请日：2016-01-28
Applicant: Si-Ware Systems
Inventor： Diaa Khalil , Bassam A. Saadany , Yasser M. Sabry
CPC classification number: G01J3/45 , G01J3/0256 , G01J3/108 , G01J3/26 , G01J3/453 , G01J3/4531 , G01J3/4532 , G01J3/4535
Abstract: A spectrometer with increased optical throughput and/or spectral resolution includes a plurality of interferometers coupled in parallel. An optical splitter divides a source light beam into a plurality of input beams and directs each of the input beams to a respective one of the plurality of interferometers. One or more detectors are optically coupled to receive a respective output from each of the plurality of interferometers and is configured to detect an interferogram produced as a result of the outputs.
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公开(公告)号：US20180128592A1
公开(公告)日：2018-05-10
申请号：US15343827
申请日：2016-11-04
Applicant: COM DEV International Ltd.
Inventor： Alan Scott , Hugh Podmore
IPC: G01B9/02
CPC classification number: G01B9/02044 , G01B9/02027 , G01B9/02051 , G01B9/02097 , G01J3/0218 , G01J3/0272 , G01J3/45 , G01J3/4531
Abstract: A spectrometer and method for determining an emitted light spectrum. An input light signal is received and directed to an array of interferometers using waveguides. A plurality of self-interfering signals are detected from a first plurality of interferometers in the array of interferometers. The first plurality of interferometers has fewer interferometers than required to satisfy the Nyquist criterion for reconstructing the emitted light spectrum. The emitted light spectrum is reconstructed from the plurality of self-interfering signals using compressive sensing. The plurality of self-interfering signals can provide an interference pattern used to reconstruct the emitted light spectrum. A second plurality of interferometers may output a second plurality of self-interfering signals to reconstruct a low resolution spectrum of the input light signal satisfying the Nyquist criterion. Low resolution signal components can be detected from the low resolution spectrum and used to pre-process the interference pattern.
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公开(公告)号：US09964396B1
公开(公告)日：2018-05-08
申请号：US15343827
申请日：2016-11-04
Applicant: COM DEV LTD.
Inventor： Alan Scott , Hugh Podmore
CPC classification number: G01B9/02044 , G01B9/02027 , G01B9/02051 , G01B9/02097 , G01J3/0218 , G01J3/0272 , G01J3/45 , G01J3/4531
Abstract: A spectrometer and method for determining an emitted light spectrum. An input light signal is received and directed to an array of interferometers using waveguides. A plurality of self-interfering signals are detected from a first plurality of interferometers in the array of interferometers. The first plurality of interferometers has fewer interferometers than required to satisfy the Nyquist criterion for reconstructing the emitted light spectrum. The emitted light spectrum is reconstructed from the plurality of self-interfering signals using compressive sensing. The plurality of self-interfering signals can provide an interference pattern used to reconstruct the emitted light spectrum. A second plurality of interferometers may output a second plurality of self-interfering signals to reconstruct a low resolution spectrum of the input light signal satisfying the Nyquist criterion. Low resolution signal components can be detected from the low resolution spectrum and used to pre-process the interference pattern.
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公开(公告)号：US09874515B2
公开(公告)日：2018-01-23
申请号：US14895946
申请日：2013-06-04
Applicant: Foss Analytical
Inventor： Per Waaben Hansen
CPC classification number: G01N21/35 , G01J3/0291 , G01J3/42 , G01J3/45 , G01N21/274 , G01N2021/3595 , G01N2201/061 , G01N2201/12746
Abstract: A method of determining a pathlength deviation of a sample (610), the method comprising: exposing the sample (610) to electromagnetic radiation at a plurality of wavenumbers, determining electromagnetic absorption in the sample (610) at the plurality of wavenumbers, determining a first wavenumber associated with a first absorption level of an absorption band and a second wavenumber associated with a second absorption level of the absorption band, wherein the second wavenumber is different from the first wavenumber, determining a difference between the first wavenumber and the second wavenumber, and determining the pathlength deviation based on the difference.
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Patent Agency Ranking
公开(公告)号：US20170363472A1
公开(公告)日：2017-12-21
申请号：US15527098
申请日：2015-11-11
Inventor： Ibrahim ABDULHALIM
CPC classification number: G01J3/447 , G01B2210/56 , G01J3/26 , G01J3/2823 , G01J3/4412 , G01J3/45 , G01J4/00 , G01J2003/1269 , G01J2003/2826 , G01J2003/451 , G01N21/21 , G01N21/4738 , G01N21/64 , G01N21/65 , G01N21/8422 , G02B27/286 , G02F1/13471 , G02F1/1393 , G02F2203/055 , G02F2203/12
Abstract: A system is described that combines spectropolarimetry with scatterometry. The system uses an annular mirror and liquid crystal devices to control the angle of the incident light cone, the polarization and wavelength, an imaging setup and one or more video cameras so that spectroseopic-polarimetric-scatterometric images can be grabbed rapidly. The system is also designed to incorporate additional imaging modes such as interference, phase contrast, fluorescence and Raman spectropolarimetric imaging.
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公开(公告)号：US09841324B2
公开(公告)日：2017-12-12
申请号：US14748430
申请日：2015-06-24
Applicant: Robert Furstenberg , Chris Kendziora , R. Andrew McGill , Viet K. Nguyen
Inventor： Robert Furstenberg , Chris Kendziora , R. Andrew McGill , Viet K. Nguyen
IPC: G01J3/28 , G01J3/02 , G01J5/60 , G02B21/00 , G01N21/17 , G01J3/443 , G01J3/45 , G01N21/3563 , G01N21/41 , G01N21/45 , G01N21/39
CPC classification number: G01J3/2823 , G01J3/02 , G01J3/0202 , G01J3/443 , G01J3/45 , G01J5/60 , G01J2003/2826 , G01N21/171 , G01N21/3563 , G01N21/41 , G01N21/45 , G01N2021/1714 , G01N2021/1725 , G01N2021/1731 , G01N2021/393 , G02B21/0028 , G02B21/008
Abstract: A non-destructive method for chemical imaging with ˜1 nm to 10 μm spatial resolution (depending on the type of heat source) without sample preparation and in a non-contact manner. In one embodiment, a sample undergoes photo-thermal heating using an IR laser and the resulting increase in thermal emissions is measured with either an IR detector or a laser probe having a visible laser reflected from the sample. In another embodiment, the infrared laser is replaced with a focused electron or ion source while the thermal emission is collected in the same manner as with the infrared heating. The achievable spatial resolution of this embodiment is in the 1-50 nm range.
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公开(公告)号：US20170322085A1
公开(公告)日：2017-11-09
申请号：US15524630
申请日：2015-11-04
Applicant: Spectral Engines Oy
Inventor： Jarkko Antila , Uula Kantojärvi , Jussi Mäkynen
CPC classification number: G01J3/45 , G01J3/0202 , G01J3/0256 , G01J3/0286 , G01J3/26 , G01J3/32 , G02B5/28
Abstract: The present invention concerns a method for an optical measurement method including the following steps: illuminating an object by light, receiving light from the illuminated object to a tunable Fabry-Perot interferometer, changing mirror gap of the Fabry-Perot interferometer, and detecting the signal passed through the mirror gap of the Fabry-Perot interferometer at different gap lengths. In accordance with the invention the detection is performed at different lengths of times at different gap lengths.
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389.发明授权公开(公告)号：US09810825B2
公开(公告)日：2017-11-07
申请号：US13942306
申请日：2013-07-15
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.
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公开(公告)号：US20170299432A1
公开(公告)日：2017-10-19
申请号：US15473772
申请日：2017-03-30
Applicant: CANON KABUSHIKI KAISHA
Inventor： Takeshi Watanabe
CPC classification number: G01J3/0297 , G01J3/2823 , G01J3/45
Abstract: A spectroscopic data processing apparatus configured to process first interferogram data obtained by separating through a spectroscopic optical system light on a slit imaged by an image capturing optical system and by capturing an image through an image sensor includes a first processor configured to deconvolute the first interferogram data using first information relating to the slit and the image sensor when the first interferogram data is obtained and to generate second interferogram data, a second processor configured to generate multi-spectral data by Fourier-transforming the second interferogram data, and a third processor configured to generate corrected multi-spectral data by performing a correction process for the multi-spectral data using second information relating to an optical transfer function or a point spread function of the image capturing optical system.
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