公开(公告)号：US20200240841A1

公开(公告)日：2020-07-30

申请号：US16847997

申请日：2020-04-14

Applicant: InnoPix, Inc.

Inventor： Gary L. McQuilkin ,  Gregory L. Engelke

IPC: G01J3/12 ,  G01J3/28 ,  G01J3/02 ,  G01J3/36 ,  G02B5/20 ,  G01N21/25 ,  A61B5/00 ,  G01N21/31 ,  A61B5/145 ,  G01N21/17

Abstract: An approach to noninvasively and remotely detect the presence, location, and/or quantity of a target substance in a scene via a spectral imaging system comprising a spectral filter array and image capture array. For a chosen target substance, a spectral filter array is provided that is sensitive to selected wavelengths characterizing the electromagnetic spectrum of the target substance. Elements of the image capture array are optically aligned with elements of the spectral filter array to simultaneously capture spectrally filtered images. These filtered images identify the spectrum of the target substance. Program instructions analyze the acquired images to compute information about the target substance throughout the scene. A color-coded output image may be displayed on a smartphone or computing device to indicate spatial and quantitative information about the detected target substance. The system desirably includes a library of interchangeable spectral filter arrays, each sensitive to one or more target substances.

公开(公告)号：US20200088586A1

公开(公告)日：2020-03-19

申请号：US16388010

申请日：2019-04-18

Applicant: REBELLION PHOTONICS, INC.

Inventor： Robert Timothy Kester ,  Nathan Adrian Hagen

IPC: G01J5/52 ,  H04N5/33 ,  G01J3/12 ,  G01N21/3504 ,  G01J3/28 ,  G01J5/08 ,  G01J3/02 ,  G01J5/20 ,  G01J3/26 ,  G01J5/00 ,  G01J3/36 ,  H04N5/365 ,  H04N3/09

Abstract: Various embodiments disclosed herein describe a divided-aperture infrared spectral imaging (DAISI) system that is adapted to acquire multiple IR images of a scene with a single-shot (also referred to as a snapshot). The plurality of acquired images having different wavelength compositions that are obtained generally simultaneously. The system includes at least two optical channels that are spatially and spectrally different from one another. Each of the at least two optical channels are configured to transfer IR radiation incident on the optical system towards an optical FPA unit comprising at least two detector arrays disposed in the focal plane of two corresponding focusing lenses. The system further comprises at least one temperature reference source or surface that is used to dynamically calibrate the two detector arrays and compensate for a temperature difference between the two detector arrays.

公开(公告)号：US10480999B2

公开(公告)日：2019-11-19

申请号：US16180328

申请日：2018-11-05

Applicant: HAMAMATSU PHOTONICS K.K.

Inventor： Takafumi Yokino ,  Katsumi Shibayama

IPC: G01J3/18 ,  G01J3/02 ,  G01J3/36 ,  G01J3/28

Abstract: A spectrometer includes a light detection element having a substrate made of a semiconductor material, a light passing part provided in the substrate, and a light detection part put in the substrate, a support having a base wall part opposing the light detection element, and side wall parts integrally formed with the base wall part, the light detection element being fixed to the side wall parts, the support being provided with a wiring electrically connected to the light detection part, and a dispersive part provided on a surface of the base wall part on a side of a space. An end part of the wiring is connected to a terminal of the light detection element. An end part of the wiring is positioned on a surface in the base wall part on an opposite side from the side of the space.

公开(公告)号：US10448836B2

公开(公告)日：2019-10-22

申请号：US15143399

申请日：2016-04-29

Applicant: Hypermed Imaging, Inc.

Inventor： Mark Anthony Darty

IPC: A61B5/00 ,  G01J3/02 ,  G01J3/28 ,  G01J3/36 ,  G01N21/25 ,  G01N21/31 ,  G01N21/47 ,  G01J3/447 ,  A61B90/30 ,  A61B90/00 ,  G01J3/10 ,  G01J3/12

Abstract: A hyperspectral/multispectral imager comprising a housing is provided. At least one light source is attached to the housing. An objective lens, in an optical communication path comprising originating and terminating ends, is further attached to the housing and causes light to (i) be backscattered by the tissue of a subject at the originating end and then (ii) pass through the objective lens to a beam steering element at the terminating end of the communication path inside the housing. The beam steering element has a plurality of operating modes each of which causes the element to be in optical communication with a different optical detector in a plurality of optical detectors offset from the optical communication path. Each respective detector filter in a plurality of detector filters covers a corresponding optical detector in the plurality of optical detectors thereby filtering light received by the corresponding detector from the beam steering element.

公开(公告)号：US10447888B2

公开(公告)日：2019-10-15

申请号：US15985262

申请日：2018-05-21

Applicant: Digimarc Corporation

Inventor： Geoffrey B. Rhoads ,  Alastair M. Reed

IPC: G06K9/00 ,  H04N1/32 ,  G01J3/51 ,  G01J3/28 ,  G01J3/36 ,  G01J3/447 ,  H04N5/225 ,  H04N5/235 ,  H04N9/04 ,  G01J3/02 ,  H05B33/08 ,  H05B37/02 ,  G06T1/00 ,  H04N21/8358 ,  A61B5/00

Abstract: Information is encoded in an image signal by exploiting spectral differences between colors that appear the same when rendered. These spectral differences are detected using image sensing that discerns the spectral differences. Spectral difference detection methods include using sensor-synchronized spectrally-structured-light imaging, 3D sensors, imaging spectrophotometers, and higher resolution Bayer pattern capture relative to resolution of patches used to convey a spectral difference signal.

公开(公告)号：US10436640B2

公开(公告)日：2019-10-08

申请号：US15785841

申请日：2017-10-17

Applicant: RAYTHEON COMPANY

Inventor： Liam Skoyles ,  Patrick W. Clark

IPC: G01J3/02 ,  G01J3/28 ,  G01J3/10 ,  G02B7/00 ,  G01B11/27 ,  G01J5/52 ,  G02B27/10 ,  G01J3/36

Abstract: Aspects are generally directed to an alignment assembly and method for aligning a multi-spectral optical system. In one example, an alignment assembly includes an illumination source configured to emit illumination in a first spectral band, and a first plate having a plurality of apertures formed in a reflective surface thereof. The reflective surface of the first plate is disposed to reflect the illumination emitted by the illumination source. The alignment assembly may also include a second plate positioned proximate to the first plate and spaced apart from the first plate to define a gap between the first plate and the second plate, the first plate being interposed between the second plate and the illumination source, and a heating element coupled to the second plate and configured to heat the second plate to emit thermal infrared radiation, from the second plate, in a second spectral band.

公开(公告)号：US20190250388A1

公开(公告)日：2019-08-15

申请号：US16333380

申请日：2017-09-12

Applicant: The Trustees of Columbia University in the City of New York

Inventor： Elizabeth M.C. HILLMAN ,  Kripa B. PATEL

IPC: G02B21/00 ,  G02B21/36 ,  G01J3/36

CPC classification number: G02B21/0048 ,  G01J3/2803 ,  G01J3/36 ,  G01J2003/2826 ,  G02B21/0032 ,  G02B21/0036 ,  G02B21/0064 ,  G02B21/0076 ,  G02B21/367

Abstract: In a first invention, a SCAPE system routes light from a tilted intermediate image plane (170) to an infinity space disposed behind a third objective (180). A first dichroic beam splitter (52) positioned in the infinity space routes light from the intermediate image plane with different wavelengths in different directions. First and second light detector arrays (90) capture first and second wavelength images, respectively, and optical components (54,56,58,82) route light having the first and second wavelengths towards the first and second light detectors, respectively. In a second invention, a SCAPE system is used to capture a plurality of images while a sample is perturbed (e.g., vibrated, deformed, pushed, pulled, stretched, or squeezed) in order to visualize the impact of the perturbation on the sample.

公开(公告)号：US10359314B2

公开(公告)日：2019-07-23

申请号：US16237942

申请日：2019-01-02

Applicant: SPECTRAFY INC.

Inventor： Viktar Tatsiankou ,  Richard Beal

IPC: G01N21/25 ,  G01J3/36 ,  G01N21/31 ,  G01J3/02 ,  G01J1/04 ,  G01J1/06 ,  G01N21/53 ,  G01J1/42 ,  G01J3/12

Abstract: Solar spectral irradiance (SSI) measurements are important for solar collector/photovoltaic panel efficiency and solar energy resource assessment as well as being important for scientific meteorological/climate observations and material testing research. To date such measurements have exploited modified diffraction grating based scientific instruments which are bulky, expensive, and with low mechanical integrity for generalized deployment. A compact and cost-effective tool for accurately determining the global solar spectra as well as the global horizontal or tilted irradiances as part of on-site solar resource assessments and module performance characterization studies would be beneficial. An instrument with no moving parts for mechanical and environment stability in open field, non-controlled deployments could exploit software to resolve the global, direct and diffuse solar spectra from its measurements within the 280-4000 nm spectral range, in addition to major atmospheric processes, such as air mass, Rayleigh scattering, aerosol extinction, ozone and water vapor absorptions.

公开(公告)号：US10344197B2

公开(公告)日：2019-07-09

申请号：US15313283

申请日：2014-08-26

Applicant: Halliburton Energy Services, Inc.

Inventor： William C. Pearl, Jr. ,  Megan Renee Pearl

IPC: E21B33/13 ,  C09K8/42 ,  E21B47/00 ,  E21B47/10 ,  G01J3/00 ,  G01N21/31 ,  G01N33/38 ,  G01N21/85 ,  C04B28/02 ,  C04B40/00 ,  C09K8/467 ,  G01J3/12 ,  G01J3/36 ,  G01J3/457 ,  G01N21/76

Abstract: Optical analysis systems and methods may be used for analyzing the characteristics, including compositions, of cement additives, which may be used in formulating a cement slurry. For example, a cement additive may be optically interacting with an integrated computational element (“ICE”) configured to detect a characteristic of the cement additive. An output signal may then be generated corresponding to the characteristic of the cement additive detected by the ICE, which may be received and processed with a signal processor to yield a value for the characteristic of the cement additive. The value of the characteristic of the cement additive may then be used to determine an amount of the cement additive for use in producing a cement slurry.

公开(公告)号：US10337919B2

公开(公告)日：2019-07-02

申请号：US15756406

申请日：2015-09-01

Applicant: SHIMADZU CORPORATION

Inventor： Yugo Ishihara

IPC: G01J3/28 ,  G01J3/36 ,  G01J1/44 ,  G01J3/18

Abstract: A PDA 5 has a plurality of light receiving elements. An A/D converter 30 converts an output signal from each of the light receiving elements of the PDA 5. A conversion processing unit 42 sequentially executes, for the plurality of light receiving elements, a conversion process of converting an output signal from an identical one of the light receiving elements at least twice within a preset time range with the A/D converter 30, to acquire at least two output values. An average value calculation unit 43 calculates an average value of the at least two output values for each of the light receiving elements acquired by the process executed by the conversion processing unit 42.