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公开(公告)号：US11150132B2
公开(公告)日：2021-10-19
申请号：US16872856
申请日：2020-05-12
Applicant: Zolix Instruments Co., Ltd.
Inventor： Hongtai Cai , Haixia Chen
Abstract: The present disclosure provides a grating rotation method and apparatus for improving spectrograph wavelength accuracy. The grating rotation method comprises: acquiring a start wavelength and an end wavelength of a scanning range; determining a start angle and an end angle of a grating rotation according to preset grating rotation angle series values, the start wavelength and the end wavelength, wherein a wavelength corresponding to the start angle is smaller than the start wavelength, and a wavelength corresponding to the end angle is larger than the end wavelength; and rotating the grating according to the start angle and the end angle to obtain required spectral information. According to the grating rotation scheme provided by the present disclosure, the problem that the obtained spectral accuracy is inconsistent due to different grating rotation angles can be avoided.
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公开(公告)号：US11131846B2
公开(公告)日：2021-09-28
申请号：US16091557
申请日：2017-03-31
Applicant: Masahiro Saito
Inventor： Masahiro Saito
Abstract: Provided is a single-axis rotary actuator that is suitable for rotationally driving an optical element, such as a diffraction grating, in a single-axis direction and that is suitable for forming light having a wide wavelength band. An actuator (500) includes a holder (550) having a mounting surface on which a diffraction grating (401) is attached and a rotary shaft (552); a fixed unit (520) having a bearing that holds the rotary shaft (552) of the holder (550); an elastic member (530) formed of an outer circumferential section fixed on the fixed unit (520), an inner circumferential section fixed on the holder (550), and an arm section interconnecting the outer circumferential section and the inner circumferential section and having elasticity; and a driving unit having a coil (540) provided on the holder (550) and a magnet (510) provided on the fixed unit (520).
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公开(公告)号：US11096586B1
公开(公告)日：2021-08-24
申请号：US16210288
申请日：2018-12-05
Applicant: Verily Life Sciences LLC
Inventor： Chinmay Belthangady , Tamara Troy , Supriyo Sinha , Daniele Piponi , Eden Rephaeli , Seung Ah Lee , Maximilian Kapczynski
Abstract: Systems, apparatuses, and methods for detecting carious lesions are described herein. In an example, the systems in an optical interrogator including a single-pixel photodetector responsive to short-wave infrared light and operatively coupled to a controller. In an example the optical interrogator includes a plurality of lasers for emitting laser light, a scanning mirror assembly and a single-pixel photodetector. In an example, the methods include causing the plurality of lasers to emit the laser light having wavelengths in a range of about 900 nm to about 1,700 nm; selectively directing the laser light over different portions of a tooth with a scanning mirror assembly to provide scattered light; and correlating scattered light signals generated by the single-pixel photodetector in response to the scattered light with the portion of the tooth.
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公开(公告)号：US11085822B2
公开(公告)日：2021-08-10
申请号：US16380543
申请日：2019-04-10
Inventor： Jens Knobbe , Heinrich Grueger
Abstract: Spectral analysis system for capturing a spectrum including an inlet opening, a dispersive optical element and reflecting imaging optics having at least one optical functional element defining an optical path from the inlet opening across the dispersive optical element onto an outlet opening and/or detector area of the spectral analysis system and a carrier member defining a flat optical path volume with at least one lateral opening. The dispersive optical element is configured, e.g. in a stationary manner. At least one of the inlet opening, the outlet opening and/or detector area, the at least one optical functional element and the dispersive optical element are integrated in at least one member. The at least one member is mounted on the carrier member at the at least one lateral opening, such that the optical path largely runs transversely to a thickness direction of the optical path volume.
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公开(公告)号：US20210223100A1
公开(公告)日：2021-07-22
申请号：US17130295
申请日：2020-12-22
Applicant: Pendar Technologies, LLC
Inventor： Daryoosh VAKHSHOORI , Romain BLANCHARD , Peili CHEN , Masud AZIMI , Tobias MANSURIPUR , Kalyani KRISHNAMURTHY , Arran M. BIBBY , Fred R. HUETTIG, III , Gokhan ULU , Greg Vander Rhodes
IPC: G01J3/02 , G01J3/44 , G01J3/28 , G01J3/06 , H01S3/00 , G01K11/3213 , H01S3/094 , H01S3/108 , H01S3/30
Abstract: A compact, portable Raman spectrometer makes fast, sensitive standoff measurements at little to no risk of eye injury or igniting the materials being probed. This spectrometer uses differential Raman spectroscopy and ambient light measurements to measure point-and-shoot Raman signatures of dark or highly fluorescent materials at distances of 1 cm to 10 m or more. It scans the Raman pump beam(s) across the sample to reduce the risk of unduly heating or igniting the sample. Beam scanning also transforms the spectrometer into an instrument with a lower effective safety classification, reducing the risk of eye injury. The spectrometer's long standoff range automatic focusing make it easier to identify chemicals through clear and translucent obstacles, such as flow tubes, windows, and containers. And the spectrometer's components are light and small enough to be packaged in a handheld housing or housing suitable for a small robot to carry.
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Patent Agency Ranking
436.发明授权公开(公告)号：US11002597B2
公开(公告)日：2021-05-11
申请号：US16333223
申请日：2017-09-13
Inventor： Ian Marius Peters , Tonio Buonassisi , Haohui Liu , Sterling Watson , Nasim Sahraei Khanghah , Anthony Pennes , Zekun Ren
Abstract: A solar spectrum sensor, a consumer device and a method for determining an ambient solar spectrum. The solar spectrum sensor comprises a sensor unit configured for generating respective photo current outputs responsive to different parts of the solar spectrum; a measurement unit configured for measuring the respective photo current outputs from the sensor unit; and a processing unit for determining an average photon energy, APE, value of the solar spectrum from the measured photo current outputs and for determining the solar spectrum based on the determined APE.
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公开(公告)号：US20210025758A1
公开(公告)日：2021-01-28
申请号：US16927804
申请日：2020-07-13
Applicant: Sanguis Corporation
Inventor： Jeffrey Owen Katz
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.
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公开(公告)号：US10732040B2
公开(公告)日：2020-08-04
申请号：US16425685
申请日：2019-05-29
Inventor： Heinrich Grueger , Jens Knobbe , Tino Puegner
Abstract: A spectroscopic instrument includes a first aperture limiting device, a second aperture limiting device, a first mirror, a movable MEMS mirror, and a dispersive element spatially separate from the MEMS mirror, the movable MEMS mirror being movable in relation to the dispersive element, the movable MEMS mirror being monolithically configured as a common component with at least one of the first aperture limiting device, the second aperture limiting device, and the dispersive element, and the first and second aperture limiting devices being arranged to be spatially separate from the movable MEMS mirror and having a lateral offset from a rotational axis of the movable MEMS mirror.
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公开(公告)号：US10705019B2
公开(公告)日：2020-07-07
申请号：US15991292
申请日：2018-05-29
Applicant: The Boeing Company
Inventor： Keith D. Humfeld , Morteza Safai
Abstract: An example system for inspecting a surface includes a laser, an optical system, a gated camera, and a control system. The laser is configured to emit pulses of light, with respective wavelengths of the pulses of light varying over time. The optical system includes at least one optical element, and is configured to direct light emitted by the laser to points along a scan line one point at a time. The gated camera is configured to record a fluorescent response of the surface from light having each wavelength of a plurality of wavelengths at each point along the scan line. The control system is configured to control the gated camera such that an aperture of the gated camera is open during fluorescence of the surface but closed during exposure of the surface to light emitted by the laser.
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公开(公告)号：US10670856B2
公开(公告)日：2020-06-02
申请号：US15919631
申请日：2018-03-13
Applicant: Seiko Epson Corporation
Inventor： Ryohei Kuri
Abstract: An optical module includes a variable wavelength interference filter provided with a pair of reflecting films, and an electrostatic actuator configured to change a gap dimension between the pair of reflecting films, a driver configured to apply a periodic drive voltage to the electrostatic actuator, a gap detector configured to detect a gap dimension between the pair of reflecting films, and a light receiver configured to receive light from the variable wavelength interference filter. The light reception signal from the light receiver is detected at a predetermined timing from a detection timing of one of a maximum value and a minimum value of the gap dimension detected by the gap detector.
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