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公开(公告)号：US20170299433A1
公开(公告)日：2017-10-19
申请号：US15512977
申请日：2015-09-23
Applicant: Heptagon Micro Optics Pte. Ltd.
Inventor： Peter Riel , Peter Roentgen
CPC classification number: G01J3/10 , G01J3/06 , G01J3/108 , G01J3/26 , H01S3/094096 , H01S5/0071 , H01S5/0287 , H01S5/041 , H01S5/1096 , H01S5/183 , H01S5/32375 , H01S5/34306 , H01S5/34313 , H01S5/34326 , H01S5/3438 , H01S5/4043 , H01S5/4087
Abstract: The present disclosure describes broadband optical emission sources that include a stack of semiconductor layers, wherein each of the semiconductor layers is operable to emit light of a different respective wavelength; a light source operable to provide optical pumping for stimulated photon emission from the stack; wherein the semiconductor layers are disposed sequentially in the stack such that a first one of the semiconductor layers is closest to the light source and a last one of the semiconductor layers is furthest from the light source, and wherein each particular one of the semiconductor layers is at least partially transparent to the light generated by the other semiconductor layers that are closer to the light source than the particular semiconductor layer. The disclosure also describes various spectrometers that include a broadband optical emission device, and optionally include a tuneable wavelength filter operable to allow a selected wavelength or narrow range of wavelengths to pass through.
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公开(公告)号：US09766125B2
公开(公告)日：2017-09-19
申请号：US14185473
申请日：2014-02-20
Applicant: SEIKO EPSON CORPORATION
Inventor： Tsugio Gomi
CPC classification number: G01J3/2823 , G01J3/0208 , G01J3/0232 , G01J3/0235 , G01J3/027 , G01J3/0286 , G01J3/0291 , G01J3/26 , G01J3/513
Abstract: A spectrometry apparatus includes a light incident section on which incident light from an image pickup target is made incident, an image pickup section provided on an optical path of the incident light input from the light incident section, a variable wavelength interference filter configured to transmit light having a predetermined wavelength from the incident light input from the light incident section and capable of changing the wavelength of the light to be transmitted, and a filter-position switching section configured to advance and retract the variable wavelength interference filter to and from an optical path of the incident light.
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公开(公告)号：US20170254701A1
公开(公告)日：2017-09-07
申请号：US15411922
申请日：2017-01-20
Applicant: VERIFOOD, LTD.
Inventor： Damian Goldring , Dror Sharon
CPC classification number: G01J3/0256 , G01J3/0208 , G01J3/26 , G01J3/2803 , G01J3/36 , G01J2003/1226 , G01N21/255
Abstract: A compact spectrometer is disclosed that is suitable for use in mobile devices such as cellular telephones. In preferred embodiments, the spectrometer comprises a filter, at least one Fourier transform focusing element, a micro-lens array, and a detector, but does not use any dispersive elements. Methods for using the spectrometer as an end-user device for performing on-site determinations of food quality, in particular, by comparison with an updatable database accessible by all users of the device, are also disclosed.
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公开(公告)号：US20170248468A1
公开(公告)日：2017-08-31
申请号：US15594345
申请日：2017-05-12
Applicant: TruTag Technologies, Inc.
Inventor： Timothy Learmonth , Hod Finkelstein
CPC classification number: G01J3/26 , B82Y20/00 , G01J3/0208 , G01J3/0237 , G01J3/0259 , G01J3/0272 , G01J3/10 , G01J2003/102 , G01N21/255 , G01N21/27 , G01N2201/061 , G01N2201/0636
Abstract: A system for wide-range spectral measurement includes one or more broadband sources, an adjustable Fabry-Perot etalon, and a detector. The one or more broadband sources is to illuminate a sample, wherein the one or more broadband sources have a short broadband source coherence length. The adjustable Fabry-Perot etalon is to optically process the reflected light to extract spectral information with fine spectral resolution. The detector is to detect reflected light from the sample, wherein the reflected light is comprised of multiple narrow-band subsets of the illumination light having long coherence lengths and is optically processed using a plurality of settings for the adjustable Fabry-Perot etalon, and wherein the plurality of settings includes a separation of the Fabry-Perot etalon plates that is greater than the broadband source coherence length.
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公开(公告)号：US20170241836A1
公开(公告)日：2017-08-24
申请号：US15516902
申请日：2015-10-07
Applicant: TECHNISCHE UNIVERSITÄT DRESDEN
Inventor： Maik LANGNER , Hartmut FRÖB , Vadim G. LYSSENKO , Markas SUDZIUS , Karl LEO
CPC classification number: G01J3/0259 , G01J3/26 , G01J3/28 , G01J3/36 , G01J2003/1234 , H01L27/305 , H01L51/441 , H01L51/447 , Y02E10/52
Abstract: Apparatus for spectrometrically capturing light includes a wavelength-adjustable filter for converting spectral information into location information and an organic photodiode for converting the location information into electrical signals which can be forwarded, wherein the filter and the organic photodiode form a one-piece monolith, the organic photodiode is connected to the filter or the organic photodiode is integrated in the filter, the filter consists of at least one spectrally resolving element in the form of at least one layer-like photonic crystal which constitutes the monolith and in which two layers of variable thickness D are formed along a direction perpendicular to the incidence of light. A resonant layer is arranged between the two layers. The organic photodiode includes: a photoactive layer, a first electrode, and a second electrode sandwiching the photoactive layer, and one of the electrodes is in contact with the photonic crystal.
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Patent Agency Ranking
公开(公告)号：US09721195B2
公开(公告)日：2017-08-01
申请号：US15185373
申请日：2016-06-17
Applicant: Seiko Epson Corporation
Inventor： Takeshi Nozawa
IPC: H04N1/00 , H04N1/60 , G06K15/02 , G01J3/02 , G01J3/06 , G01J3/12 , G01J3/28 , G01J3/46 , G01J3/52 , G01J3/26
CPC classification number: G06K15/027 , G01J3/021 , G01J3/0229 , G01J3/06 , G01J3/26 , G01J3/2823 , G01J3/46 , G01J3/463 , G01J3/52 , G01J2003/061 , G01J2003/1226 , G01J2003/2826 , H04N1/00015 , H04N1/00023 , H04N1/00034 , H04N1/00045 , H04N1/00068 , H04N1/00082 , H04N1/6036 , H04N1/6044
Abstract: A printer includes a spectroscope that has a variable wavelength interference filter which incidents light from a measurement region, and a light receiving section which receives light from the variable wavelength interference filter and which outputs a detection signal according to an amount of received light, a carriage moving unit which relatively moves the spectroscope along one direction with respect to a measurement target of spectrometry and moves the measurement region with respect to the measurement target, and a timing detection circuit which has a differential circuit that differentiates the detection signal and outputs a differentiation signal, wherein in a case where the measurement target is a color patch, spectrometry in which the amount of received light is detected starts based on the differential signal.
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公开(公告)号：US09719854B2
公开(公告)日：2017-08-01
申请号：US15125686
申请日：2015-03-13
Applicant: KONINKLIJKE PHILIPS N.V.
Inventor： Klaas Cornelis Jan Wijbrans , Gerhardus Wilhelmus Lucassen , Bernardus Hendrikus Wilhelmus Hendriks
CPC classification number: G01J3/12 , A61B5/0075 , A61B5/725 , A61B5/7264 , G01J3/0218 , G01J3/26 , G01J3/28 , G01J3/36 , G01J2003/1213 , G01J2003/1247 , G01N21/255 , G01N21/31 , G01N21/474 , G01N21/49 , G01N2201/12 , G02B6/00 , G02B6/12
Abstract: A spectroscopic analysis device for analysis of a sample comprising: a photonic integrated circuit (PIC) comprising: an input (DEF) for receiving light from the sample; and a demultiplexer (DEMUX) arranged to distribute the received light into at least a first optical chain (C1) and a second optical chain (C2); wherein each optical chain (C1, C2) of the photonic integrated circuit (PIC) further comprises a tunable bandpass filter (TBF1, TBF2) and a variable attenuator (ATT1, ATT2) and a photodetector (PD1, PD2) arranged respectively to filter and to attenuate and to detect the light distributed into its corresponding optical chain (C1, C2).
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公开(公告)号：US20170191873A1
公开(公告)日：2017-07-06
申请号：US15314001
申请日：2015-05-01
Applicant: GHGSat Inc.
Inventor： James J. SLOAN , Berké DURAK , David GAINS , Francesco RICCI , Jason McKEEVER , Joshua LAMORIE , Mark SDAO , Vincent LATENDRESSE , Jonathan LAVOIE , Roman KRUZELECKY
CPC classification number: G01J3/26 , G01J3/28 , G01J3/2823 , G01J3/42 , G01N2021/1793 , G01N2021/3531 , G02F2001/213
Abstract: Systems, methods, and devices relating to optical imaging systems for gathering data on atmospheric trace gas emissions from a satellite. An optical system used in the satellite has a Fabry-Perot interferometer coupled to a suitable telescope. The interferometer is a wide angle Fabry-Perot interferometer which creates a fringing pattern in concentric circles with each fringe being a different wavelength on the imaging system. A filter is used with the optical system and allows multiple adjacent modes in a selected spectral range to pass through the interferometer to the imaging system. Each pixel in the imaging system collects light at multiple wavelengths within the selected spectral range. The optical system gathers multiple images of the target area allowing light from the target area to be collected at multiple different wavelengths. Different absorption data for different atmospheric trace gases can be gathered in a single satellite pass over the target area.
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公开(公告)号：US09696471B2
公开(公告)日：2017-07-04
申请号：US13847616
申请日：2013-03-20
Applicant: Axsun Technologies, Inc.
Inventor： Dale C. Flanders , Walid A. Atia , Mark E. Kuznetsov
CPC classification number: G02B5/22 , G01B9/02004 , G01B9/02091 , G01J3/10 , G01J3/26 , G01J3/4338 , G01N21/4795
Abstract: An integrated swept wavelength optical source uses a filtered ASE signal with an optical amplifier and tracking filter. This source comprises a micro optical bench, a source for generating broadband light, a first tunable Fabry Perot filter, installed on the bench, for spectrally filtering the broadband light from the broadband source to generate a narrowband tunable signal, an amplifier, installed on the bench, for amplifying the tunable signal, and a second tunable Fabry Perot filter, installed on the bench, for spectrally filtering the amplified tunable signal from the amplifier. A self-tracking arrangement is also possible where a single tunable filter both generates the narrowband signal and spectrally filters the amplified signal. In some examples, two-stage amplification is provided. The use of a single bench implementation yields a low cost high performance system. For example, polarization control between components is no longer necessary.
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公开(公告)号：US09684162B2
公开(公告)日：2017-06-20
申请号：US15090916
申请日：2016-04-05
Applicant: Goodrich Corporation
Inventor： Kevin J. Whitcomb , Robert Basedow
CPC classification number: G02B26/007 , G01J3/0202 , G01J3/26 , G01J3/28 , G01J3/2803 , G01J3/2823 , G01J2003/2806 , G01J2003/2826 , G01N21/01 , G02B7/008 , H04N5/2254
Abstract: An optical sensor includes an array of pixels configured to convert photons into electrons for forming an image. A tunable filter assembly is optically connected to the array of pixels for passing an adjustable bandwidth of photons to the array of pixels. The tunable filter assembly includes a first mirror defining an optical axis and a second mirror spaced apart from the first mirror along the optical axis. A first electrode is mechanically connected to the first mirror and a second electrode is fixed relative to the second mirror. The first and second electrodes are positioned relative to one another to adjust the position of the first mirror with respect to the second mirror when a voltage is applied across the first and second electrodes to tune the spectral bands being passed through the filter assembly to the array of pixels.
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