公开(公告)号：US09826172B2

公开(公告)日：2017-11-21

申请号：US14185486

申请日：2014-02-20

Applicant: SEIKO EPSON CORPORATION

Inventor： Tatsuaki Funamoto

IPC: G01J3/28 ,  H04N5/33 ,  G01J3/10 ,  G01J3/26 ,  H04N5/217 ,  H04N5/225 ,  H04N5/235

CPC classification number: H04N5/33 ,  G01J3/10 ,  G01J3/26 ,  G01J3/2803 ,  H04N5/217 ,  H04N5/2254 ,  H04N5/2256 ,  H04N5/2354

Abstract: A spectroscopic analysis apparatus includes a light source section having a first light source and second light source that radiate light fluxes, a wavelength tunable interference filter, an imaging section that captures light having passed through the wavelength tunable interference filter to acquire a first spectroscopic image when the object being imaged is irradiated with the light from the first light source and a second spectroscopic image when the object being imaged is irradiated with the light from the second light source, a pixel detector that detects an abnormal pixel in the first spectroscopic image, and a light amount corrector that replaces the amount of light at the abnormal pixel in the first spectroscopic image with the amount of light at a pixel in the second spectroscopic image that is located in the same position as the abnormal pixel.

公开(公告)号：US09823129B2

公开(公告)日：2017-11-21

申请号：US15058527

申请日：2016-03-02

Applicant: Seiko Epson Corporation

Inventor： Ryohei Kuri

IPC: G01J3/26 ,  G01J3/28 ,  G01J3/50 ,  H04N1/60 ,  G01J3/02 ,  G01J3/06

CPC classification number: G01J3/2823 ,  G01J3/0229 ,  G01J3/06 ,  G01J3/26 ,  G01J3/50 ,  G01J2003/061 ,  H04N1/6033 ,  H04N1/6044

Abstract: A printer includes a spectroscope and a carriage moving unit. The spectroscope includes a wavelength-selective interference filter on which light from a measurement target is incident, and the carriage moving unit moves the spectroscope in an X direction with respect to the measurement target. If the measurement target is a color patch, the spectroscope performs spectrometry by changing a wavelength of light passing through the wavelength-selective interference filter in a first period during which the spectroscope is moved in the X direction, and passes light of an initial wavelength through the wavelength-selective interference filter at a start of measurement and at an end of measurement in the first period. A first output value that is a measured value from the spectrometry at the start of measurement is compared with a second output value that is a measured value from the spectrometry at the end of measurement.

公开(公告)号：US20170316547A1

公开(公告)日：2017-11-02

申请号：US15485823

申请日：2017-04-12

Applicant: TECHNOLOGY INNOVATION MOMENTUM FUND (ISRAEL) LIMITED PARTNERSHIP

Inventor： David MENDLOVIC ,  Ariel RAZ

IPC: G06T3/40 ,  G02B26/00 ,  G01J3/51 ,  H04N9/04 ,  G01J3/26

CPC classification number: G06T3/4015 ,  G01J3/26 ,  G01J3/51 ,  G02B26/001 ,  H04N9/045

Abstract: An imaging system color image acquisition including: an image sensor; a tunable spectral filter arranged in an optical path of light propagation towards the image sensor; and a controller connected to the image sensor and to the tunable spectral filter. The controller is configured and operable for generating a colored image by sequentially operating the tunable spectral filter for sequentially filtering light passing towards the image sensor with three or more different spectral filtering curves during three or more corresponding integration time durations. The tunable spectral filter is configured, as an etalon and includes a pair of reflective surfaces. At least one of the reflective surfaces includes a layer of high refractive index of at least n=2.3 or even higher than 3, or a layer of low refractive index, smaller than n=1. The configuration of the etalon provide wide transmission peaks of the spectral curves with full-width-half maximum (FWHM) in the range of about 50 to 80 nm, free spectral range (FSR) of at least 300 nm, and thickness of the etalon in the order to 1 mm or even less.

公开(公告)号：US09797774B2

公开(公告)日：2017-10-24

申请号：US14580848

申请日：2014-12-23

Applicant: Seiko Epson Corporation

Inventor： Akira Sano ,  Takashi Nagate ,  Kazunori Sakurai ,  Nozomu Hirokubo

IPC: G01J3/28 ,  G01J3/02 ,  G01J3/45 ,  G01J3/26 ,  G01J3/32

CPC classification number: G01J3/2823 ,  G01J3/0202 ,  G01J3/0235 ,  G01J3/027 ,  G01J3/0272 ,  G01J3/0289 ,  G01J3/0291 ,  G01J3/26 ,  G01J3/28 ,  G01J3/32

Abstract: A spectrometry system includes an imaging apparatus that includes an imaging element which captures an image, and a spectroscopic module that includes a wavelength variable interference filter and an attachment unit which holds the wavelength variable interference filter, is provided to be attachable to and detachable from the imaging apparatus, and can dispose the wavelength variable interference filter on an optical path of incident light to the imaging element during attachment to the imaging apparatus.

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

IPC: G01J3/10 ,  H01S5/10 ,  H01S5/04 ,  H01S5/00 ,  G01J3/26 ,  H01S5/343 ,  G01J3/06

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.

公开(公告)号：US20170276996A1

公开(公告)日：2017-09-28

申请号：US15506660

申请日：2015-08-25

Applicant: MONTANA STATE UNIVERSITY

Inventor： Russell J. BARBOUR ,  Zeb W. BARBER

IPC: G02F1/1335 ,  G01J3/28

CPC classification number: G02F1/133514 ,  G01J3/26 ,  G01J3/2823 ,  G01J3/36 ,  G01J2003/1247 ,  G02F1/133371 ,  G02F1/133526 ,  G02F1/13473 ,  G02F1/1368 ,  G02F1/216 ,  G02F2001/133394 ,  G02F2001/213

Abstract: Tunable filter arrays include an array of liquid crystal (LC) tunable Fabry-Perot (FP) microcavities. The microcavities are defined by first and second reflectors and an LC layer situated between the reflectors. The tunable filter is secured to an image sensor array so that the LC tunable microcavities are coupled to respective photodetectors of the image sensor array. Patterned electrodes are situated about the LC layer to tune the microcavities.

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

IPC: G01J3/28 ,  G01J3/51 ,  G01J3/02 ,  G01J3/26

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.

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

IPC: G01N21/33 ,  G01N21/25 ,  G01J3/02 ,  G01J3/26

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.

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

IPC: G01J3/26 ,  G01N21/27 ,  G01N21/25 ,  G01J3/02 ,  G01J3/10

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.

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

IPC: G01J3/02 ,  G01J3/28 ,  H01L51/44 ,  G01J3/26

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.