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Небесная энциклопедия

Космические корабли и станции, автоматические КА и методы их проектирования, бортовые комплексы управления, системы и средства жизнеобеспечения, особенности технологии производства ракетно-космических систем

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Мониторинг СМИ

Мониторинг СМИ и социальных сетей. Сканирование интернета, новостных сайтов, специализированных контентных площадок на базе мессенджеров. Гибкие настройки фильтров и первоначальных источников.

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Форма поиска

Поддерживает ввод нескольких поисковых фраз (по одной на строку). При поиске обеспечивает поддержку морфологии русского и английского языка
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Применить Всего найдено 22090. Отображено 100.
05-01-2012 дата публикации

Dual-etalon cavity ring-down frequency-comb spectroscopy

Номер: US20120002212A1
Автор: David W. Chandler, Kevin E. Strecker
Принадлежит: Sandia Corp

In an embodiment, a dual-etalon cavity-ring-down frequency-comb spectrometer system is described. A broad band light source is split into two beams. One beam travels through a first etalon and a sample under test, while the other beam travels through a second etalon, and the two beams are recombined onto a single detector. If the free spectral ranges (“FSR”) of the two etalons are not identical, the interference pattern at the detector will consist of a series of beat frequencies. By monitoring these beat frequencies, optical frequencies where light is absorbed may be determined.

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Номер записи: 1
04-06-2018 дата публикации

Портативное многофункциональное устройство для установления групповой принадлежности лакокрасочных покрытий по цветовому тону, насыщенности и яркости цвета в цифровом эквиваленте

Номер: RU0000180103U1
Автор: Галина Константиновна Лобачева, Сергей Александрович Ковалев, Юрий Семенович Чичерин
Принадлежит: Федеральное государственное казенное образовательное учреждение высшего образования "Волгоградская академия Министерства внутренних дел Российской Федерации" (Волгоградская академия МВД России)

Полезная модель относится к области измерения цвета и касается портативного многофункционального устройства для установления групповой принадлежности лакокрасочных материалов и покрытий по цветовому тону, насыщенности и яркости цвета в цифровом эквиваленте. Устройство содержит цилиндрический корпус, кнопки управления, аккумулятор, разъем зарядного устройства, ЭВМ, микроконтроллер, светодиоды инфракрасного, ультрафиолетового и видимого излучения, сенсорный дисплей, microUSB порт, приемопередающее устройство Bluetooth, регулятор интенсивности излучения источников света, приемопередающее устройство GSM. Кроме того, устройство содержит видеокамеру, автофокус, инфракрасный светодиод автофокуса, наноприсоски и магнитную вставку. ЭВМ обеспечивает получение изображения с видеокамеры, обработку полученного изображения и получение численного значения длины волны отраженного излучения в виде цветового тона, насыщенности и яркости цвета в цифровом эквиваленте, формирование полученных результатов и выведение их на сенсорный дисплей и/или передачу. Технический результат заключается в повышении точности и стабильности результатов измерений. 3 ил. РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 180 103 U1 (51) МПК G01J 3/46 (2006.01) G01N 21/25 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ПОЛЕЗНОЙ МОДЕЛИ К ПАТЕНТУ (52) СПК G01J 3/463 (2006.01); G01N 21/251 (2006.01) (21)(22) Заявка: 2017137662, 27.10.2017 (24) Дата начала отсчета срока действия патента: Дата регистрации: 04.06.2018 (45) Опубликовано: 04.06.2018 Бюл. № 16 1 8 0 1 0 3 R U (56) Список документов, цитированных в отчете о поиске: RU 171154 U1, 23.05.2017. US 7711252 B2, 04.05.2010. US 2015308896 A1, 29.10.2015. US 2016069743 A1, 10.03.2016. (54) ПОРТАТИВНОЕ МНОГОФУНКЦИОНАЛЬНОЕ УСТРОЙСТВО ДЛЯ УСТАНОВЛЕНИЯ ГРУППОВОЙ ПРИНАДЛЕЖНОСТИ ЛАКОКРАСОЧНЫХ ПОКРЫТИЙ ПО ЦВЕТОВОМУ ТОНУ, НАСЫЩЕННОСТИ И ЯРКОСТИ ЦВЕТА В ЦИФРОВОМ ЭКВИВАЛЕНТЕ (57) Реферат: Полезная модель относится к области света, приемопередающее ...

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Номер записи: 2
12-01-2012 дата публикации

Method And Device For Measuring The Concentration Of Substances In Gaseous Or Fluid Media Through Optical Spectroscopy Using Broadband Light Sources

Номер: US20120006098A1
Автор: Elfred Lewis, Hartmut Ewald, Martin Degner, Nils Damaschke
Принадлежит: Bluepoint Medical GmbH and Co KG

The invention relates to a method and to a device for using partially non-stabilized broadband light sources to accurately measure partially broadband-absorbing substances using referencing measuring cells. In order to create a low-cost, high-resolution, and at the same time fast spectrographic device for measuring concentrations of substances in fluid or gaseous media that is also suitable for harsh environments, the light radiated by the broadband light sources ( 1 ) through light guiding optical systems is fed through the measuring section of the self-referencing measuring cell ( 20, 30, 40 ) or only partially through a measuring cell ( 10 ) to a measurement detector (photoreceptor 11 ) and partially through a reference path (optical waveguide 8 ) to a reference detector (photoreceptor 15 ), and a mode coupler ( 5, 9, 14 ) is associated with each optical waveguide ( 2, 4, 7, 8 ) in order to homogenize the radiation characteristic of the broadband light sources ( 1 ), which varies over time and space.

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Номер записи: 3
12-01-2012 дата публикации

Method and system for measuring patterned structures

Номер: US20120008147A1
Автор: Boaz Brill, Moshe Finarov
Принадлежит: Nova Measuring Instruments Ltd

A method and system are presented for determining a line profile in a patterned structure, aimed at controlling a process of manufacture of the structure. The patterned structure comprises a plurality of different layers, the pattern in the structure being formed by patterned regions and un-patterned regions. At least first and second measurements are carried out, each utilizing illumination of the structure with a broad wavelengths band of incident light directed on the structure at a certain angle of incidence, detection of spectral characteristics of light returned from the structure, and generation of measured data representative thereof. The measured data obtained with the first measurement is analyzed, and at least one parameter of the structure is thereby determined. Then, this determined parameter is utilized, while analyzing the measured data obtained with the second measurements enabling the determination of the profile of the structure

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Номер записи: 4
26-01-2012 дата публикации

Sensing System

Номер: US20120019814A1
Автор: John MacDougall
Принадлежит: Individual

Described herein is an improved sensing system (30) and its method of operation. The system (30) includes a camera (16) for viewing an external scene, the camera comprising one or more detector(s) and has a field of view (40) which overlaps with the path (32) of a pulsed laser (12). The laser path (32) and radiation from the scene viewed (40) share a beamsplitter (36) and a window (38). In order to substantially reduce back-scattered radiation from the laser path (32) affecting operation of the detector(s) of the camera (16), the detector(s) is (are) switched in accordance with the operation of the laser (12) to be ‘off’ or non-receiving when the laser (12) is ‘on’ or firing.

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Номер записи: 5
02-02-2012 дата публикации

Compact raman analyzer for recording dissolved gases in liquids with high sensitivity and spectral resolution

Номер: US20120026494A1
Автор: Manfred Fink, Philip Varghese
Принадлежит: University of Texas System

A Raman head is provided capable of operating at high surrounding pressures. The Raman head has housing having a first, sealed chamber filled with an incompressible liquid and a second chamber that is open to the surrounding environment. At least one bellows can be used to equalize pressure between the first sealed chamber and the surrounding environment. A planar side of a pair of plano-concave lens is positioned within the first chamber and the concave side of each plano-concave lens is positioned within the second chamber of the Raman head. Light emitted as a result of a laser beam in communication with the pair of plano-concave lens can be analyzed by a Raman analyzer.

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Номер записи: 6
23-02-2012 дата публикации

Color management and calibration using a scanner or camera

Номер: US20120044540A1
Автор: Edul N. Dalal, Wencheng Wu
Принадлежит: Xerox Corp

A computer-implemented method for color calibration and profiling of an output device includes measuring a color patch in a test pattern, which comprises a plurality of color patches, to obtain first image data; measuring the color patch in the test pattern to obtain second image data; transforming the first image data to a first estimated image data; determining a difference between the second image data and the first estimated image data to obtain a correction factor; and calculating, for each patch in the test pattern, a corrected image data by applying the correction factor to a subsequent estimated image data from the first sensor. The correction factor is used for correcting inaccuracies introduced when the first image data is transformed into the first estimated image data. The first image data and the second image data provide a measured color representation of the color patch in a device dependent color space and a device independent color space, respectively.

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Номер записи: 7
01-03-2012 дата публикации

Laser microscope

Номер: US20120050733A1
Автор: Shinichi Takimoto
Принадлежит: Olympus Corp

Provided is a laser microscope, in which laser irradiation optical systems ( 3, 4, 5, 6 ) are employed for coaxially irradiating a sample with a CARS laser beam and a Raman scattering laser beam, and CARS light is detected by CARS light detecting means ( 12 ) and Raman scattering light is detected by Raman scattering light detecting means ( 13 ). In this manner, Raman scattering light observation and CARS light observation can be selectively performed without moving the sample, so that the vibration frequency for the CARS light observation can be efficiently selected without needing complicated work.

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Номер записи: 8
01-03-2012 дата публикации

Planar lightwave fourier-transform spectrometer measurement including phase shifting for error correction

Номер: US20120050744A1
Автор: Katsunari Okamoto, Kazumasa Takada
Принадлежит: AiDi Corp, Gunma University NUC

A transform spectrometer measurement apparatus and method for a planar waveguide circuit (PLC). The spectrometer typically includes an input optical signal waveguide carrying an input optical signal; a plurality of couplers, each connected to the input optical signal waveguide, and each including a coupler output for carrying a coupled optical signal related to the input optical signal; and an array of interleaved, waveguide Mach-Zehnder interferometers (MZI), each having at least one input MZI waveguide, each MZI input waveguide receiving a coupled optical signal from a respective coupler output. A phase shifting circuit is applied to at least one arm of the MZIs to induce an active phase shift on the arm to thereby measure phase error in the MZIs. Light output from the MZIs is measured under intrinsic phase error conditions and after an active phase shift by the phase shifting circuit.

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Номер записи: 9
01-03-2012 дата публикации

High speed spectrometer

Номер: US20120053899A1
Автор: Brady A. Johnson, Dmitriy Marinskiy
Принадлежит: First Solar Inc

A system for measuring quantum efficiency in a sample photovoltaic cell may include a Fourier transform infrared spectrometer. One or more light source for illuminating the photovoltaic cell in a wavelength range of interest are provided.

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Номер записи: 10
15-03-2012 дата публикации

Hot gas temperature measurement in gas turbine using tunable diode laser

Номер: US20120060510A1
Автор: Ayan Banerjee, Chayan Mitra, Scott Mordin HOYTE, Vivek Venugopal Badami
Принадлежит: General Electric Co

A combustion gas measurement apparatus mounted in a gas turbine including: a tunable laser generating a radiation beam passing through a combustion gas path; a controller tuning the laser to emit radiation having at least a first selected wavelength and a second selected wavelength which both correspond to temperature-dependent transitions of a combustion species of the gas, wherein the first selected wavelength and the second selected wavelength are not near absorption peaks of neighboring wavelengths; a detector sensing the radiation beam passing through the combustion gas and generating an absorption signal indicative of an absorption of the beam by the combustion gas at each of the first wavelength and the second wavelength, and a processor executing a program stored on a non-transitory storage medium determining a combustion gas temperature based on a ratio of the adoption signals for the first wavelength and the second wavelength.

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Номер записи: 11
22-03-2012 дата публикации

Method, apparatus, and article to facilitate evaluation of objects using electromagnetic energy

Номер: US20120072154A1
Автор: Bradley E. Sparks, Brian T. Schowengerdt, Nicholas E. Walker, Ross D. Melville, Thomas A. Furness, III
Принадлежит: Individual

Spectral information may be employed in process control and/or quality control of goods and articles. Spectral information may be employed in process control and/or quality control of media, for example financial instruments, identity documents, legal documents, medical documents, financial transaction cards, and/or other media, fluids for example lubricants, fuels, coolants, or other materials that flow, and in machinery, for example vehicles, motors, generators, compressors, presses, drills and/or supply systems. Spectral information may be employed in identifying biological tissue and/or facilitating diagnosis based on biological tissue.

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Номер записи: 12
05-04-2012 дата публикации

System and method for raman chemical analysis of lung cancer with digital staining

Номер: US20120083678A1
Автор: Amy Drauch, John Maier
Принадлежит: ChemImage Corp

The present disclosure provides for a system and method for diagnosing biological samples that combines the visual staining features familiar to pathologists with the accurate, reliable, and nondestructive capabilities of Raman chemical imaging. The invention disclosed herein may be applied to diagnose lung cancer samples. A method may comprise illuminating a biological sample to generate interacted photons, filtering said interacted photons using a tunable filter, and detecting interacted photons to generate a test Raman data set representative of said sample. The method may further comprise applying at least one chemometric technique and/or a digital stain to said test Raman data set. This test Raman data set may be analyzed to diagnose said sample as comprising at least one of: adenocarcinoma, mesothelioma, and combinations thereof. A system may comprise an illumination source, a tunable filter, and a detector configured to generate a test Raman data set representative of a biological sample.

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Номер записи: 13
19-04-2012 дата публикации

Preparing samples for optical measurement

Номер: US20120092658A1
Автор: Arran Bibby, Christopher D. Brown, Daryoosh Vakhshoori, Kevin J. Knopp, Masud Azimi, Peidong Wang, Peili Chen, Stephen Mclaughlin
Принадлежит: Individual

We disclose an apparatus comprising: a hand-portable optical analysis unit including an optical interface; and a device configured to receive and releasably engage the hand-portable optical analysis unit. The device comprises: a housing; a sample unit in the housing; and a resilient member configured to bias the sample unit and the hand-portable analysis unit towards each other when the hand-portable optical analysis unit is received in the device to compress a sample disposed between the sample unit and the optical interface of the optical analysis unit. Methods of analyzing samples are also disclosed.

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Номер записи: 14
10-05-2012 дата публикации

Generating and detecting radiation

Номер: US20120113417A1
Автор: Alexander Giles Davies, Christopher Wood, David Graham Moodie, Edmund Linfield, John Cunningham, Michael James Robertson, Paul John Cannard, Xin Chen
Принадлежит: Individual

A method of generating radiation comprises: manufacturing a structure comprising a substrate supporting a layer of InGaAs, InGaAsP, or InGaAlAs material doped with a dopant, said manufacturing comprising growing said layer such that said dopant is incorporated in said layer during growth of the layer; illuminating a portion of a surface of the structure with radiation having photon energies greater than or equal to a band gap of the doped InGaAs, InGaAsP, or InGaAlAs material so as to create electron-hole pairs in the layer of doped material; and accelerating the electrons and holes of said pairs with an electric field so as to generate radiation. In certain embodiments the dopant is Fe. Corresponding radiation detecting apparatus, spectroscopy systems, and antennas are described.

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Номер записи: 15
17-05-2012 дата публикации

Device and method for controlling the conversion of biomass to biofuel

Номер: US20120117815A1
Автор: James Braig R., Mark Wechsler
Принадлежит: RENEWABLE FUEL TECHNOLOGIES Inc

Embodiments presented herein describe an apparatus and method to control the conversion of carbonaceous materials, particularly biomass and those biomass resources, into a high performance solid fuel. This method, and the apparatus described as the means to accomplish this method, provides a process having a control system that enables the system to produce a fuel of uniform quality, even with a change in biomass supply.

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Номер записи: 16
17-05-2012 дата публикации

Sensing devices

Номер: US20120119315A1
Автор: Fung Suong Ou, Huei Pei Kuo, Min Hu, Zhiyong Li
Принадлежит: Individual

A sensing device ( 10, 10 ′) includes a substrate ( 14 ), and first and second electrodes (E IC , E ICS , E O ) established on the substrate ( 14 ). The first electrode (E IC , E ICS ) has a three-dimensional shape, and the second electrode (E O ) is electrically isolated from and surrounds a perimeter of the first electrode (E IC , E ICS ).

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Номер записи: 17
07-06-2012 дата публикации

Atomic absorption instrument

Номер: US20120140218A1
Автор: FENG Jin
Принадлежит: Individual

An atomic absorption instrument has a burner and a mixing apparatus for delivering a combustible mixture to the burner. The mixing apparatus includes a mixing chamber assembly having a plurality of internal delivery passageways. An end cap assembly holds a nebulizer closes a mixing chamber. The end cap assembly has a plurality of internal feed passageways through which fluid from the internal delivery passageways flows into the mixing chamber. Latch mechanisms couple the end cap assembly to the mixing chamber assembly. The latch mechanisms can be operated to remove the end cap assembly.

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Номер записи: 18
21-06-2012 дата публикации

Method and apparatus for measuring a spectrum of an optical sensor, advantageously in the infrared region

Номер: US20120153158A1
Автор: Hakon Mikkelsen, Ralf Bernhard
Принадлежит: Endress and Hauser Conducta Gesellschaft fuer Mess und Regeltechnik mbH and Co KG

A method for measuring a spectrum of an optical sensor, advantageously in the infrared region, in which a light beam impinges on an optical sensor in contact with a medium to be measured, wherein the optical sensor transmits a measurement beam changed by the medium to be measured and the measurement beam is fed to a pyrodetector, which issues output signals corresponding to the spectrum. The intensity of the measurement signal is modulated before impinging on a pyrodetector. In order to provide a cost effective, vibration free measuring apparatus, which has a long lifetime, intensity modulation of measurement beam occurs by tuning-in wavelengths contained in the optical spectrum of measuring beam.

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Номер записи: 19
28-06-2012 дата публикации

Sensor chip, detection device, and method of manufacturing sensor chip

Номер: US20120162640A1
Автор: Yusuke Sakagami
Принадлежит: Seiko Epson Corp

A sensor chip includes a substrate, a relief structure composed of protruding sections formed so as to be arranged on a surface of the substrate to have a lattice shape and a recessed section between the protruding sections, and fine metal particles arranged along upper ridge lines of the respective protruding sections of the relief structure, the protruding sections being adjacent to each other, having a minute gap with which the surface plasmon resonance occurs. By irradiating the gap between the fine metal particles with a laser beam, the localized surface plasmon resonance occurs more efficiently. As a result, the sensor chip capable of taking out the surface enhanced Raman scattering to thereby detect the substance with high sensitivity can be realized.

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Номер записи: 20
05-07-2012 дата публикации

Methods and apparatus for normalizing optical emission spectra

Номер: US20120170039A1
Автор: Eric Pape, Jean-Paul Booth, Vijayakumar C. Venugopal
Принадлежит: Individual

A processing system having a chamber for in-situ optical interrogation of plasma emission to quantitatively measure normalized optical emission spectra is provided. The processing chamber includes a confinement ring assembly, a flash lamp, and a set of quartz windows. The processing chamber also includes a plurality of collimated optical assemblies, the plurality of collimated optical assemblies are optically coupled to the set of quartz windows. The processing chamber also includes a plurality of fiber optic bundles. The processing chamber also includes a multi-channel spectrometer, the multi-channel spectrometer is configured with at least a signal channel and a reference channel, the signal channel is optically coupled to at least the flash lamp, the set of quartz windows, the set of collimated optical assemblies, the illuminated fiber optic bundle, and the collection fiber optic bundle to measure a first signal.

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Номер записи: 21
12-07-2012 дата публикации

System and method reducing fiber stretch induced timing errors in fiber optic coupled time domain terahertz systems

Номер: US20120175520A1
Автор: David Zimdars
Принадлежит: Picometrix LLC

A system for reducing effects relating to stretching of an optical fiber includes an optical control source, the optical source outputting an optical signal, a terahertz transmitter and receiver both being optically coupled to the optical source, and a means for providing the optical signal to both the terahertz transmitter and terahertz receiver such that the terahertz receiver is synchronized to the terahertz transmitter by the optical signal. The means prevents the stretching of an fiber carrying the optical signal provided to the terahertz transmitter or terahertz receiver or allows for the stretching an optical fiber such that the terahertz receiver will still be synchronized to the terahertz transmitter by the optical signal.

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Номер записи: 22
12-07-2012 дата публикации

Apparatus For Detecting And Imaging Explosives On A Suicide Bomber

Номер: US20120175521A1
Автор: Manmohan S. Chawla
Принадлежит: System Planning Corp

An apparatus designed for generating and detecting reflected Terahertz waves using a single pixel Complementary Metal Oxide Semiconductor (CMOS) or Charge Couple Device (CCD) camera is described. Optical alignment between the components is not necessary since the Terahertz waves can propagate from the source to a collimating lens using a metal wire that can be bent obviating the need to have a clear line of sight from the lens to the source or to the camera. The present invention is well-suited for high traffic physical locations currently under surveillance such as security check points and also venues demanding significantly less obtrusive surveillance such as revolving entry doors, moving walkways, and entry gates for airplanes.

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Номер записи: 23
12-07-2012 дата публикации

Fiber optic probes utilizing grin lenses for spatially precise optical spectroscopy

Номер: US20120176613A1
Автор: Eric T. Marple, Kirk D. Urmey
Принадлежит: Marple Eric T, Urmey Kirk D

The invention provides improved fiber optic probe assemblies which utilize a configuration of gradient index (GRIN) lenses to deliver light to a focal point and collect light for analysis from the same focal point. Also provided are methods for manufacturing the probe assemblies and related methods of spatially precise spectroscopy using the probe assemblies.

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Номер записи: 24
19-07-2012 дата публикации

Method and apparatus for determining a curing level of printing inks and print process control strip

Номер: US20120180561A1
Автор: Martin Hirning, Michael Kohlmann
Принадлежит: HEIDELBERGER DRUCKMASCHINEN AG

A method, apparatus and print process control strip determine a curing level of printing inks on printing material. Conventional measuring areas of a print process control strip are always formed by tonal value combinations of individual, reliably thoroughly dried, printing inks, in particular when using intermediate dryers. Measuring the measuring areas furnishes no more accurate information with regard to the curing level of ink combinations in the actual printed image which differ from the combinations of the measuring areas of the print process control strip. A level-of-curing control area is provided, which is formed by overprinting preferably at least four printing inks, in each case in full tone, to obtain statements relating to the curing level of the printing inks with the print process control strip. Measuring the level-of-curing control area provides information about the curing level of all printing ink combinations in the printed image.

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Номер записи: 25
26-07-2012 дата публикации

Common detector for combined raman spectroscopy-optical coherence tomography

Номер: US20120188538A1
Автор: Anita Mahadevan-Jansen, Antonius Gerardus Johannes Maria van Leeuwen, Chetan A. Patil, Jeroen Kalkman
Принадлежит: VANDERBILT UNIVERSITY

In one aspect of the present invention, an apparatus includes a first light source for generating a broadband light, and a second light source for generating a monochromatic light, a beamsplitter optically coupled to the first light source for receiving the broadband light and splitting the received broadband light into a reference light and a sample light, a reference arm optically coupled to the beamsplitter for receiving the reference light and returning the received reference light into the beamsplitter, and a sample arm optically coupled to the beamsplitter and the second light source for combining the sample light and the monochromatic light, delivering the combined sample and monochromatic light to the target of interest, collecting a backscattering light and a Raman scattering light that are generated from interaction of the sample light and the monochromatic light with the target of interest, respectively, returning the backscattering light into the beamsplitter so as to generate an interference signal between the returned backscattering light and the returned reference light in the beamsplitter, and directing the Raman scattering light in an output optical path, and a single detector optically coupled to the beamsplitter for collecting the interference signal.

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Номер записи: 26
26-07-2012 дата публикации

Optical fiber measurement device and measurement method using same

Номер: US20120190034A1
Автор: Hideji Tajima
Принадлежит: UNIVERSAL BIO RESEARCH CO LTD

Disclosed is a highly reliable optical fiber measurement device and measurement method having a simple and compact structure. The device includes a planar liquid holder having a plurality of liquid holding portions arranged along a flat face; a plurality of light receiving optical fibers for transmitting fluorescence generated in the liquid holding portions; a plurality of light emitting optical fibers for transmitting excitation light into the liquid holding portions; a measurement head capable of being positioned in the each liquid holding portion while supporting a plurality of measurement ends having a bundle of one light receiving end of the light receiving optical fibers and one light emitting end of light emitting optical fibers; a light reception selecting element that, by sequentially selecting one by one from plural the light receiving optical fibers and sequentially selecting one by one from plural kinds of wavelength or wavelength bands, sequentially guides the light of the selected wavelength or wavelength band of the fluorescence received by the selected light receiving optical fibers to one photoelectric element; and a photoelectric element for sequentially conducting photoelectric conversion on the guided fluorescence.

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Номер записи: 27
26-07-2012 дата публикации

Imaging apparatus for diagnosis and control method thereof

Номер: US20120190974A1
Автор: Satoru Suehara
Принадлежит: Terumo Corp

An imaging apparatus for diagnosis is connected with a probe including a transmitting and receiving unit transmitting a light transmitted from a light source continuously to the inside of a body cavity and concurrently, receiving a reflected light continuously from the inside of the body cavity, and generates a tomographic image inside the body cavity based on the obtained reflected light by obtaining the reflected light from the transmitting and receiving unit while rotating the transmitting and receiving unit. The apparatus comprises: a mechanism for extracting intensity of the reflected light obtained by a phenomenon that the light transmitted to the transmitting and receiving unit is reflected at the transmitting and receiving unit; and a mechanism for judging whether or not the extracted intensity of each reflected light at each rotary angle of the transmitting and receiving unit lies in a range of a predetermined variation width.

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Номер записи: 28
02-08-2012 дата публикации

Method of absorbance correction in a spectroscopic heating value sensor

Номер: US20120197575A1
Автор: Alexei Saveliev, John PRATAPAS, Sergeui ZELEPOUGA, Vilas Vyankatrao JANGALE
Принадлежит: GAS TECHNOLOGY INSTITUTE, North Carolina State University

A method and apparatus for absorbance correction in a spectroscopic heating value sensor in which a reference light intensity measurement is made on a non-absorbing reference fluid, a light intensity measurement is made on a sample fluid, and a measured light absorbance of the sample fluid is determined. A corrective light intensity measurement at a non-absorbing wavelength of the sample fluid is made on the sample fluid from which an absorbance correction factor is determined. The absorbance correction factor is then applied to the measured light absorbance of the sample fluid to arrive at a true or accurate absorbance for the sample fluid.

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Номер записи: 29
13-09-2012 дата публикации

Dental shade mapping

Номер: US20120231420A1
Автор: James R. Milch, Victor C. Wong
Принадлежит: Carestream Health Inc

A method and apparatus for obtaining a color mapping of a dental object. Illumination is directed toward the object over at least a first and second wavelength band, one band at a time. An image of the dental object is captured at each wavelength band to form a set of images of the dental object. For pixels in the captured set of images, an image data value for the pixel corresponds to each of the wavelength bands and calculates interpolated image data values proportional to the spectral reflectance of the dental object, according to the obtained image data values and according to image data values obtained from a reference object at the wavelength bands. Spectral distribution data for a viewing illuminant is obtained and the visual color of the dental object reconstructed according to the calculated interpolated image data values and the obtained spectral distribution of the viewing illuminant.

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Номер записи: 30
20-09-2012 дата публикации

Filtered fiber optic probe

Номер: US20120236303A1
Автор: Eric T. Marple, Kirk D. Urmey
Принадлежит: Marple Eric T, Urmey Kirk D

The invention provides improved multi-fiber, fiber optic probe assemblies in which the component parts are adapted for rapid assembly with precise alignment. Some embodiments are adapted to illuminate and collect light from a sample at a particular depth while minimizing interference arising from within the probe assembly itself. Also provided are methods for manufacturing the probe assemblies and optical apparatuses including the probe assemblies.

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Номер записи: 31
27-09-2012 дата публикации

Surface-enhanced raman scattering apparatus and methods

Номер: US20120242987A1
Автор: Bing Liu, Makoto Murakami, WEI QIAN, Yong Che
Принадлежит: IMRA America Inc

An apparatus for performing surface-enhanced Raman scattering (SERS) is disclosed wherein an inner surface of a container is coated with SERS active materials such as nanoparticles of noble metals. Such a container can provide a partially enclosed, optical diffuse cavity whose inner surfaces serve for dual purposes of enhancing Raman scattering of the contained analyte and optical integration, therefore improving the efficiency of optical excitation and signal collection. The container may be configured to isolate the SERS active material from the external environment. The container, which may be a cylindrical tube, may be referred to as a SERS tube. Methods of coating the inner wall of a container with pulsed laser ablation and with nanoparticle colloids, respectively, are disclosed.

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Номер записи: 32
25-10-2012 дата публикации

Signal processing for optical computing system

Номер: US20120268730A1
Автор: David L. Perkins, Michael L. Myrick, Robert P. Freese, William Soltmann
Принадлежит: Halliburton Energy Services Inc

The present subject matter relates to an apparatus and related method of high-speed analysis of product samples during production of the product. Light is directed to a portion of a product under analysis and reflected from or transmitted through the product toward optical detectors. Signals from the optical detectors are compared to determine characteristics of the product under analysis. Temperature within the monitoring system may be monitored in order to provide compensation for the signals produced by the optical detectors. The products under analysis may be stationary, moved by an inspection point by conveyor or other means, or may be contained within a container, the container including a window portion through which the product illuminating light may pass.

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Номер записи: 33
01-11-2012 дата публикации

Chemical Leak Inspection System

Номер: US20120273680A1
Автор: David W. Furry
Принадлежит: Leak Surveys Inc

A method of visually detecting a leak of a chemical emanating from a component includes aiming a passive infrared camera system towards the component; filtering an infrared image with an optical bandpass filter, the infrared image being that of the leak; after the infrared image passes through the lens and optical bandpass filter, receiving the filtered infrared image with an infrared sensor device; electronically processing the filtered infrared image received by the infrared sensor device to provide a visible image representing the filtered infrared image; and visually identifying the leak based on the visible image. The passive infrared camera system includes: a lens; a refrigerated portion including the infrared sensor device and the optical bandpass filter (located along an optical path between the lens and the infrared sensor device). At least part of a pass band for the optical bandpass filter is within an absorption band for the chemical.

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Номер записи: 34
01-11-2012 дата публикации

Apparatus and Methods for Selecting Light Emitters

Номер: US20120275147A1
Автор: Chenhua You, John Roberts
Принадлежит: Cree Inc

Provided are devices and methods for grouping light emitters and devices including the same. Embodiments of such methods may include selecting a portion of the light emitters using a region of a multiple axis color space that is configured to represent each of a plurality of colors as at least two chromaticity coordinates. The region may be proximate a predefined point on the multiple axis color space and includes a major axis having a first length and a minor axis having a second length that is less than the first length.

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Номер записи: 35
08-11-2012 дата публикации

Fluorescence detecting optical system and multi-channel fluorescence detection apparatus including the same

Номер: US20120280143A1
Автор: Joon-Ho Kim, Kak Namkoong, Kyung-Ho Kim, Won-Seok Chung
Принадлежит: SAMSUNG ELECTRONICS CO LTD

A fluorescence detection optical system detects fluorescence beams with two or more different wavelengths and maintains a focal position through an automatic focusing function. A multi-channel fluorescence detection apparatus includes the fluorescence detection optical system. The fluorescence detection optical system includes an automatic focusing unit which receives light reflected off a microfluidic device and determines a focal point by using an astigmatic method or a knife edge method, and an actuator which adjusts a position of an objective lens according to control of the automatic focusing unit. In addition, the fluorescence detection optical system may include a plurality of dual band pass filters, dichroic devices, etc., which provide light beams emitted from at least two light sources and transfer fluorescence generated from the microfluidic device to a photodetector.

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Номер записи: 36
08-11-2012 дата публикации

Optical system enabling low power excitation and high sensitivity detection of near infrared to visible upconversion phoshors

Номер: US20120280144A1
Автор: Peter S. Guilfoyle, Richard A. Guilfoyle
Принадлежит: Individual

A simple yet high performance optical system is described which is tailored to enabling efficient detection of the luminescence emissions of near infrared-to-visible upconverting phosphors. The system is comprised of simple and relatively low cost optical components and is designed to telecentrically enable low optical power NIR excitation and high sensitivity VIS and NIR detection of the upconverting phosphor (UCPs), particularly the lanthanide doped UCP nanocrystals which show great promise for utility as molecular taggants in many applications of biomedicine, security and environmental monitoring. The overall system is designed to facilitate compact spectrophotometric instrument manufacture and is adaptable to multiple liquid or solid sample types and formats.

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Номер записи: 37
08-11-2012 дата публикации

Systems and methods for endoscopic angle-resolved low coherence interferometry

Номер: US20120281224A1
Автор: Adam Wax, John W. Pyhtila
Принадлежит: Duke University

Fourier domain a/LCI (faLCI) system and method which enables in vivo data acquisition at rapid rates using a single scan. Angle-resolved and depth resolved spectra information is obtained with one scan. The reference arm can remain fixed with respect to the sample due to only one scan required. A reference signal and a reflected sample signal are cross-correlated and dispersed at a multitude of reflected angles off of the sample, thereby representing reflections from a multitude of points on the sample at the same time in parallel. Information about all depths of the sample at each of the multitude of different points on the sample can be obtained with one scan on the order of approximately 40 milliseconds. From the spatial, cross-correlated reference signal, structural (size) information can also be obtained using techniques that allow size information of scatterers to be obtained from angle-resolved data.

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Номер записи: 38
22-11-2012 дата публикации

Method and system for determining colour from an image

Номер: US20120294517A1
Автор: Benjamin Buchanan Lings, Paul James Harrop, Peter Mark Spiers, Steward Longhurst
Принадлежит: AKZO NOBEL COATINGS INTERNATIONAL BV

Embodiments of the invention relate to the determination of the colour of a colour sample from an image of the colour sample. In one embodiment a colour sample capture card is provided having printed thereon colour samples of known colour (for example, XYZ tri-stimulus values). An image of the test colour sample is then captured using domestically available equipment, such as a consumer digital camera or camera-equipped mobile telephone, the image also containing the colour sample capture card. Regression analysis is then performed using the RGB colour samples in the image and known XYZ colours thereof to characterise the colour capture response of the image capture device. In one embodiment the colour calibration characteristics are determined using N known calibration colour samples, wherein N is less than the total number of known calibration colour samples across the whole colour space. Having characterised the image capture device the XYZ colour of the unknown colour sample can be determined from the RGB colour thereof in the image.

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Номер записи: 39
29-11-2012 дата публикации

Universal multidetection system for microplates

Номер: US20120300194A1
Автор: Ben Knight, Ben Norris, Bill Anderson, Brian Ferris, Christopher Many, Dan J. VENDITTI, JR., James Piette, Joe Tobey, Michael Kontorovich, Oleg Zimenkov, Richard N. Sears, Ross Piette, Xavier Amouretti
Принадлежит: BTI Holdings Inc

An apparatus for optically analyzing a sample may include an imaging subsystem that images the sample, one or more analyzing subsystems that analyze the sample, a temperature control subsystem that controls a temperature of the atmosphere within the apparatus, a gas control subsystem that controls a composition of the atmosphere within the apparatus, and a control module that controls the various subsystems of the apparatus.

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Номер записи: 40
20-12-2012 дата публикации

Terahertz wave measuring apparatus and measurement method

Номер: US20120318967A1
Автор: Takeaki Itsuji
Принадлежит: Canon Inc

The present invention provides a terahertz wave measuring apparatus and measurement method capable of improving the quantitativeness of obtained frequency spectrum information. In a measurement method in which a terahertz wave measuring apparatus is used, the terahertz wave measuring apparatus measures a time waveform of a terahertz wave relating to a calibration sample whose shape of a calibration spectrum is already known and obtains a measurement spectrum by transforming the time waveform. The calibration spectrum and the measurement spectrum are compared, and, on the basis of results of the comparison, time intervals of measurement data that form a time waveform are adjusted in order to calibrate the terahertz wave measuring apparatus.

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Номер записи: 41
27-12-2012 дата публикации

Induction device

Номер: US20120325783A1
Автор: Peter Morrisroe
Принадлежит: Individual

A device for sustaining a plasma in a torch is provided. In certain examples, the device comprises a first electrode configured to couple to a power source and constructed and arranged to provide a loop current along a radial plane of the torch. In some examples, the radial plane of the torch is substantially perpendicular to a longitudinal axis of the torch.

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Номер записи: 42
27-12-2012 дата публикации

Integrated device capable of performing chemical separation and light scattering

Номер: US20120327408A1
Автор: Hong Wang, Xun Guo
Принадлежит: Hong Wang, Xun Guo

An integrated chemical separation device includes a chemical separation unit configured to separate a plurality of substances in a sample solution, a mixing chamber configured to receive the plurality of substances in the sample solution at different times, a chemical separation and detection controller, and a multi-channel valve configured to direct the plurality of substances in the sample solution to the mixing chamber under the control of the chemical separation and detection controller. The chemical separation and detection controller can introduce nano particles in the mixing chambers to allow each of the plurality of substances to be adsorbed on the nano particles. A Raman scattering spectrometer unit emits a laser beam to illuminate molecules adsorbed on the surfaces of the nano particles and obtains Raman spectra from the plurality of substances.

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Номер записи: 43
03-01-2013 дата публикации

Spectrophotometer

Номер: US20130003060A1
Автор: Hiroyuki Yoshimura, Toshiro Kimura
Принадлежит: Shimadzu Corp

A spectrophotometer 10 includes built-in detector 24 and external detector 32. When a mountable/removable optical path switcher 23 a is installed in a specimen chamber 23, measurement based on detection signals from built-in detector 24 is replaced by measurement based on detection signals from external detector 32. The spectrophotometer further includes a measurement data threshold-value storage unit 51 that stores threshold value T for measurement data from built-in detector 24 or external detector 32, and a light-receiving detector recognition unit 52 that recognizes which detector is able to receive the measuring light beam based on the results of a comparison between threshold value T and measurement data from built-in detector 24 or external detector 32 while the measuring light beam is being introduced into specimen chamber 23.

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Номер записи: 44
03-01-2013 дата публикации

Method and device for plasma-treating workpieces

Номер: US20130004682A1
Автор: Sebastian Kytzia, Sönke SIEBELS
Принадлежит: KHS CORPOPLAST GMBH

The method and device are used to plasma-treat workpieces. The workpiece is inserted into a chamber of a treatment station that can be at least partially evacuated. The plasma chamber is bounded by a chamber bottom, a chamber cover, and a lateral chamber wall. The method process is optically monitored at least at times. In the optical monitoring, spectral lines of the radiation of the plasma above 500 nanometers are evaluated. Preferably, the evaluation is performed for frequencies above 700 nanometers.

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Номер записи: 45
17-01-2013 дата публикации

Apparatus and method for measuring color

Номер: US20130016340A1
Автор: Alan R. Loudermilk, Russell W. Jung, Wayne D. Jung
Принадлежит: Individual

Color measuring systems and methods are disclosed. Perimeter receiver fiber optics are spaced apart from a central source fiber optic and receive light reflected from the surface of the object being measured. Light from the perimeter fiber optics pass to a variety of filters. The system utilizes the perimeter receiver fiber optics to determine information regarding the height and angle of the probe with respect to the object being measured. Under processor control, the color measurement may be made at a predetermined height and angle. Various color spectral photometer arrangements are disclosed. Translucency, fluorescence and/or surface texture data also may be obtained. Audio feedback may be provided to guide operator use of the system. The probe may have a removable or shielded tip for contamination prevention.

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Номер записи: 46
17-01-2013 дата публикации

Apparatus, system, and method for laser-induced breakdown spectroscopy

Номер: US20130016349A1
Автор: Andrew J. Effenberger, JR., Jill R. Scott, Timothy R. McJunkin
Принадлежит: Battelle Energy Alliance Llc

In laser-induced breakdown spectroscopy (LIBS), an apparatus includes a pulsed laser configured to generate a pulsed laser signal toward a sample, a constructive interference object and an optical element, each located in a path of light from the sample. The constructive interference object is configured to generate constructive interference patterns of the light. The optical element is configured to disperse the light. A LIBS system includes a first and a second optical element, and a data acquisition module. The data acquisition module is configured to determine an isotope measurement based, at least in part, on light received by an image sensor from the first and second optical elements. A method for performing LIBS includes generating a pulsed laser on a sample to generate light from a plasma, generating constructive interference patterns of the light, and dispersing the light into a plurality of wavelengths.

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Номер записи: 47
31-01-2013 дата публикации

Sloped structure, method for manufacturing sloped structure, and spectrum sensor

Номер: US20130026590A1
Автор: Takahiko Yoshizawa
Принадлежит: Seiko Epson Corp

A method for manufacturing a sloped structure is disclosed. The method includes the steps of: (a) forming a sacrificial film above a substrate; (b) forming a first film above the sacrificial film; (c) forming a second film having a first portion connected to the substrate, a second portion connected to the first film, and a third portion positioned between the first portion and the second portion; (d) removing the sacrificial film; and (e) bending the third portion of the second film after the step (d), thereby sloping the first film with respect to the substrate.

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Номер записи: 48
31-01-2013 дата публикации

Apparatus for the classification of observers according to their visual characteristics

Номер: US20130027567A1
Автор: Abhijit Sarkar, Laurent Blonde, Marine Le Breton, Patrick Morvan
Принадлежит: Abhijit Sarkar, Laurent Blonde, Marine Le Breton, Patrick Morvan

Preferably, seven classes of observers are defined, according to different sets of Colour Matching Functions. By displaying specific colour patches of a classification chart using colour display devices having different sets of primaries, and by asking an actual observer to compare his perception of the same colour as displayed on each colour display device, the method allows assigning said observer his specific class. It is proposed a specific apparatus to implement this method.

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Номер записи: 49
31-01-2013 дата публикации

System and Method for Correcting Spectral Response Using a Radiometric Correction Filter

Номер: US20130027701A1
Автор: John Maier, Ryan Priore
Принадлежит: ChemImage Corp

The present disclosure provides for a correction filter that may be configured to comprise a predetermined arrangement of thin film layers. This arrangement of thin film layers may be such that it effectively enables a correction filter to generate a predetermined spectral response, wherein said predetermined spectral response is substantially the same as a determined instrument response correction associated with an instrument. The invention of the present disclosure therefore provides for effectively compensating for transmission inefficiencies associated with an instrument without the need for separate reference measurements to determine and correct for instrument response.

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Номер записи: 50
07-02-2013 дата публикации

Method for controlling an image display device to allow the same perception of colours over a large variety of observers

Номер: US20130033528A1
Автор: Abhijit Sarkar, Jurgen Stauder, Laurent Blonde
Принадлежит: Thomson Licensing SAS

For each colour, the method comprises the following steps: —converting the first set of colour coordinates (R 0 , G 0 , B 0 ) R representing this colour into a first set of visual tristimulus values (X 0 , Y 0 , Z 0 ) representing said colour as perceived by a first observer when displayed using a first set of primaries, —converting said first set of visual tristimulus values (X 0 , Y 0 , Z 0 ) into a second set of visual tristimulus values (X i , Y i , Z i ) representing the same colour as perceived by a second observer, —converting said second set of visual tristimulus values (X i , Y i , Z i ) into a second set of colour coordinates (R i , G i , B i ) C representing said colour as perceived by said second observer when displayed using a second set of primaries.

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Номер записи: 51
21-02-2013 дата публикации

Cavity enhanced laser based isotopic gas analyzer

Номер: US20130044314A1
Автор: Alexander Kachanov, Serguei Koulikov
Принадлежит: Li Cor Inc

Systems and methods for measuring the isotope ratio of one or more trace gases and/or components of gas mixtures such as different gas species present in a gas mixture. The system includes a resonant optical cavity having two or more mirrors and containing a gas, the cavity having a free spectral range that equals the difference between frequencies of two measured absorption lines of different gas species in the gas, or of two different isotopes, divided onto an integer number. The system includes a continuous-wave tunable laser optically coupled with the resonant optical cavity and a detector system for measuring an absorption of laser light by the gas in the cavity. The detector system includes a photo-detector to measure an intensity of the intra-cavity light, or both a photo-acoustic sensor to measure photo-acoustic waves generated in the cavity and a photo-detector to measure an intensity of the intra-cavity light.

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Номер записи: 52
28-02-2013 дата публикации

Optical component

Номер: US20130050704A1
Автор: Gerardo Jose Padilla Viquez
Принадлежит: UNIVERSIDAD DE COSTA RICA

The invention relates to an optical component ( 10 ), comprising a first spherical reflector ( 12 ) and a second spherical reflector ( 14 ), which is arranged in order to reflect a light beam several times between the first reflector ( 12 ) and the second reflector ( 14 ) and which spans an interior together with the first spherical reflector ( 12 ), wherein a coupling-in device is provided, which comprises a coupling-in reflector element ( 16 ) arranged within the interior, said coupling-in reflector element being arranged in order to reflect a light beam ( 24 ) to be coupled in onto the first spherical reflector ( 12 ).

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Номер записи: 53
07-03-2013 дата публикации

Time-synchronized tdlas measurements of pressure and temperature in a gas turbine engine

Номер: US20130057864A1
Автор: Andrew D. Sappey, Bernard P. Masterson, David Owenby, Henrik Hofvander, James Howell, Lee Sutherland, Michael J Estes
Принадлежит: Zolo Technologies Inc

A method of absorption spectroscopy to determine a rapidly variable gas parameter. The method includes transmitting light from a synchronization light source to a synchronization detector. The transmitted light is periodically interrupted by a moving mechanical part between the synchronization light source and synchronization detector. The output from the synchronization detector is used to generate a repeating time signal having variable phase delay. This signal is used to control the timing of laser spectroscopy wavelength scans. Multiple spectroscopic scans may be repeated at multiple selected time signal phase delay and the results averaged for each phase. Apparatus for implementing the above methods are also disclosed.

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Номер записи: 54
14-03-2013 дата публикации

Pattern inspection apparatus and method

Номер: US20130063721A1
Автор: Kiminori Yoshino, Makoto Kaneko, Mitsutoshi WATABIKI, Takayoshi Fujii, Yuichiro Yamazaki, Yusaku Konno, Yusuke Iida
Принадлежит: Toshiba Corp

In one embodiment, a pattern inspection apparatus includes a light source configured to generate light, and a condenser configured to shape the light into a line beam to illuminate a wafer with the line beam. The apparatus further includes a spectrometer configured to disperse the line beam reflected from the wafer. The apparatus further includes a two-dimensional detector configured to detect the line beam dispersed by the spectrometer, and output a signal including spectrum information of the line beam. The apparatus further includes a comparison unit configured to compare the spectrum information obtained from corresponding places of a repetitive pattern on the wafer with each other, and a determination unit configured to determine whether the wafer includes a defect, based on a comparison result of the spectrum information.

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Номер записи: 55
14-03-2013 дата публикации

Die inspection method

Номер: US20130063725A1
Автор: Hidekazu Hayashi, Takao Imaoku
Принадлежит: Sharp Corp

A method is disclosed for inspecting a mold which has a porous alumina layer over its surface. The method includes providing, based on a relationship between a first parameter indicative of a thickness of the porous alumina layer and a color parameter indicative of a color of reflected light from the porous alumina layer, first color information which represents a tolerance of the first parameter of a porous alumina layer which has an uneven structure that is within a tolerance; providing a mold which is an inspection subject, the mold having a porous alumina layer over its surface; obtaining a color parameter which is indicative of a color of reflected light from the porous alumina layer of the inspection subject mold; and determining a suitability of the first parameter of the inspection subject mold based on the obtained color parameter and the first color information.

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Номер записи: 56
14-03-2013 дата публикации

Device and Method for Detecting and Monitoring Ingredients or Properties of a Measurement Medium, In Particular of Physiological Blood Values

Номер: US20130066172A1
Автор: Axel Kulcke
Принадлежит: SENSPEC GMBH

The invention relates to a device for detecting and monitoring ingredients or properties of a measurement medium, for example physiological blood values, wherein said device contains a light source ( 20 ) for generating broad-spectrum measurement light ( 2 ) and for acting on a measurement area ( 3 ), and means ( 9 ) for fanning out the analysis light ( 4 ) reflected by the measurement area ( 3 ). The device also has a sensor array ( 11 ) for picking up the fanned light. The sensor array ( 11 ), the light source ( 20 ) and the means for dispersing the analysis light ( 4 ) are arranged as a compact unit in a housing.

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Номер записи: 57
28-03-2013 дата публикации

Apparatus and Method for Detecting and Quantifying Analytes in Solution

Номер: US20130075614A1
Автор: Frank Thomas Hartley
Принадлежит: ROC8SCI Co

A method for identifying and quantifying one or more analytes included in a sample comprising a background solvent is disclosed. The present invention locates a sample fluid at a sample region by virtue of a sample holder that comprises work-hardened silver halide. The sample fluid at the sample region is then spectrally characterized via a mid-infrared spectrometer.

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Номер записи: 58
28-03-2013 дата публикации

APPLYING EDGE-ON PHOTOLUMINESCENCE TO MEASURE BULK IMPURITIES OF SEMICONDUCTOR MATERIALS

Номер: US20130075627A1
Автор: Hadd John W., Kreszowski Doug
Принадлежит: HEMLOCK SEMICONDUCTOR CORPORATION

Provided are photoluminescence spectroscopy systems and methods for identifying and quantifying impurities in a semiconductor sample. In some embodiments, the systems and methods comprise a defocused collimated laser beam illuminating a first sample surface, and collection by a collection lens of photoluminescence from a sample edge at the intersection of the first surface with a substantially orthogonal second surface, wherein the first sample surface is oriented from about 0° to 90° with respect to a position parallel to the collection lens. 136.-. (canceled)37. A photoluminescence spectroscopy system for identifying and quantifying impurities in one or more semiconductor samples , each comprising a first surface , a substantially orthogonal second surface , and an edge at the intersection of the first and second surfaces adapted to allow collection of photoluminescence emitted therefrom , the photoluminescence spectroscopy system comprising:a laser system adapted to provide a defocused laser beam capable of causing an illuminated semiconductor to photoluminesce; anda collection lens having a lens focal point at the edge of the one or more semiconductor samples positioned for analysis, the lens adapted to collect emitted photoluminescence from said focal point;wherein the system is configured such that when the one or more semiconductor samples is positioned for analysis, its first surface is oriented to be at an angle of deviation of greater than 0° and less than or equal to 90° with respect to a position parallel to the collection lens, andwherein the first surface is adapted to be at least partially illuminated by the defocused laser beam.38. A photoluminescence spectroscopy system according to claim 37 , wherein the defocused laser beam is a defocused collimated laser beam.39. A photoluminescence spectroscopy system according to claim 38 , wherein the laser system comprises a defocusing system comprising a first lens that collects and focuses a collimated ...

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Номер записи: 59
28-03-2013 дата публикации

Compact, Low Cost Raman Monitor For Single Substances

Номер: US20130077094A1
Автор: Ban Vladimir Sinisa, Stoker Neal R., Volodin Boris Leonidovich
Принадлежит: PD-LD, INC.

Apparatus for performing Raman analysis may include a laser source module, a beam delivery and signal collection module, a spectrum analysis module, and a digital signal processing module. The laser source module delivers a laser beam to the beam delivery and signal collection module. The beam delivery and signal collection module delivers the laser source beam to a sample, collects Raman scattered light scattered from the sample, and delivers the collected Raman scattered light to the spectrum analysis module. The spectrum analysis module demultiplexes the Raman scattered light into discrete Raman bands of interest, detects the presence of signal energy in each of the Raman bands, and produces a digital signal that is representative of the signal energy present in each of the Raman bands. The digital signal processing module is adapted to perform a Raman analysis of the sample. 1. Apparatus for performing Raman spectroscopy on a sample of interest , the apparatus comprising:a laser source adapted to excite the sample sequentially at a first emission wavelength and a second emission wavelength, wherein a separation between the first and second wavelengths corresponds to a width of a Raman band of a substance of interest,wherein the laser source is stabilized via optical feedback from a three-dimensional Bragg grating element.2. The apparatus of claim 1 , wherein the Bragg grating element has a Bragg grating holographically recorded in a three-dimensional bulk of optical material.3. The apparatus of claim 2 , wherein the Bragg grating is adapted to reflect laser light at the first emission wavelength.4. The apparatus of claim 3 , wherein the Bragg grating is adapted to reflect laser light at the second emission wavelength.5. The apparatus of claim 3 , further comprising a second Bragg grating element having a second Bragg grating holographically recorded in a second three-dimensional bulk of optical material claim 3 , wherein the second Bragg grating is adapted to ...

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Номер записи: 60
04-04-2013 дата публикации

FLUIDIC FLOW CYTOMETRY DEVICES AND METHODS

Номер: US20130083315A1
Автор: Alaynick Will, Cho Sung Hwan, Chuang Kendall, Kim Nam, Lo Yu-Hwa, Morachis Jose
Принадлежит:

Devices, systems and methods facilitate analyzing, identifying and sorting particles in fluids, including cytometry devices and techniques. The described techniques can be used in a variety of applications such as in chemical or biological testing and diagnostic measurements. One exemplary flow cytometry device includes a channel that is capable of conducting a fluid containing at least one particle and also capable of allowing light be transmitted to and from the channel. The flow cytometry device also includes a lens that is positioned between the channel and a color filter. The lens directs at least a portion of light transmitted from the channel to the color filter. The color filter includes a plurality of zones, where each zone is adapted to allow transmission of only a particular spectral range of light. The flow cytometry device further includes a detector configured to receive the light that is transmitted through the color filter. 1. A flow cytometry device , comprising:a channel capable of conducting a fluid containing at least one particle, the channel further capable of allowing light be transmitted to and from the channel;a lens positioned between the channel and a color filter and adapted to direct at least a portion of light transmitted from the channel to the color filter, the color filter comprising a plurality of zones, each zone adapted to allow transmission of only a particular spectral range of light; anda detector configured to receive the light that is transmitted through the color filter.2. The flow cytometry device of claim 1 , further comprising:at least one light source positioned to direct light to the mirror;one or more mirrors positioned to reflect the light from the light source(s) into the channel, wherein the one or more mirrors are substantially transparent to the light transmitted by the channel; andan optical filter positioned between the lens and the detector and adapted to substantially block the light from the light source and ...

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Номер записи: 61
04-04-2013 дата публикации

Process for producing and delivering matching color coating and use thereof

Номер: US20130083991A1
Автор: Allan Blase Joseph Rodrigues, Daniel A. Benton, Gerard T. Brosmer, Hartmut Krause, Larry Eugene Steenhoek, Matthew T. Reed
Принадлежит: Individual

The present invention is directed to a process for repairing one or more defects of a target coating of a vehicle. The process can repair target coatings at a repair facility using matching coating compositions provided from a supply center, where the matching coating compositions can be produced according to target repair data transmitted from one or more repair facilities to the supply center. The present invention is also directed to a system for repairing one or more defects of a target coating of a vehicle. The system can comprise one or more supply centers and one or more repair facilities.

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Номер записи: 62
18-04-2013 дата публикации

Energy dispersion device

Номер: US20130093936A1
Автор: Alexander Scheeline, Bui Anh Thu
Принадлежит: SPECTROCLICK Inc

The invention provides an energy dispersion device, spectrograph and method that can be used to evaluate the composition of matter on site without the need for specialized training or expensive equipment. The energy dispersion device or spectrograph can be used with a digital camera or cell phone. A device of the invention includes a stack of single- or double-dispersion diffraction gratings that are rotated about their normal giving rise to a multiplicity of diffraction orders from which meaningful measurements and determinations can be made with respect to the qualitative or quantitative characteristics of matter.

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Номер записи: 63
18-04-2013 дата публикации

ELECTRODE FOR PRODUCING A PLASMA, PLASMA CHAMBER HAVING SAID ELECTRODE, AND METHOD FOR ANALYZING OR PROCESSING A LAYER OR THE PLASMA IN SITU

Номер: US20130094022A1
Автор: Carius Reinhard, Gordijn Aad, Hrunski Dzmitry, Huelsbeck Markus, Muthmann Stefan
Принадлежит:

A RF electrode for generating, plasma in a plasma chamber comprising an optical feedthrough. A plasma chamber comprising an RF electrode and a counter-electrode with a substrate support for holding a substrate, wherein a high-frequency alternating field for generating the plasma can be formed between the RF electrode and the counter-electrode. The chamber comprising an RF electrode with an optical feedthrough. A method, for in situ analysis or in situ processing of a layer or plasma in a plasma chamber, wherein the layer is disposed on counter-electrode and an RF electrode is: disposed on the side lacing the layer. Selection of an RF electrode having an optical feedthrough, and at least one step in which electromagnetic radiation is supplied through the optical feedthrough for purposes of analysis or processing of the layer or the plasma, and by at least one other step in which the scattered or emitted or reflected radiation is supplied to an analysis unit. 1. An RF electrode for generating plasma in a plasma chamber , comprising at least one optical feedthrough wherein the RF electrode is a showerhead , and wherein a conical funnel lines the optical feedthrough of the showerhead in a gas-tight manner.2. The electrode according to claim 1 , wherein the optical feedthrough is large enough to allow in situ Raman spectroscopy or optical emission spectroscopy to be carried out through the RF electrode.3. An electrode according to claim 1 , wherein the optical feedthrough has a conical section.4. The electrode according to claim 3 , wherein the smaller of the two openings of the feedthrough has an area of 0.03 cmto 5 cm.5. An electrode according to claim 3 , wherein the larger of the two openings of the feedthrough has an area of 0.031 to 100 cm.6. An electrode according to claim 1 , wherein an opening of the optical feedthrough comprises a shielding.7. The electrode according to claim 6 , comprising a metallic mesh as a shielding tor the optical feedthrough claim 6 , ...

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Номер записи: 64
18-04-2013 дата публикации

Device for optically scanning and measuring an environment

Номер: US20130094024A1
Автор: Axel Ruhland, Bernd-Dietmar Becker, Reinhard Becker
Принадлежит: Faro Technologies Inc

With a device for optically scanning and measuring an environment, which is designed as a laser scanner, with a light emitter, which emits an emission light beam, with a light receiver which receives a reception light beam which is reflected from an object in the environment of the laser scanner or scattered otherwise, and with a control and evaluation unit which, for a multitude of measuring points, determines at least the distance to the object, at least one shell is provided as part of the housing of the laser scanner, said shell being partially covered on its outer side by at least one yoke which serves as protection.

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Номер записи: 65
25-04-2013 дата публикации

Integrating sphere photometer and measuring method of the same

Номер: US20130099102A1
Автор: Dong Hoon Lee, Seongchong Park, Seung Nam Park
Принадлежит: Korea Research Institute of Standards and Science KRISS

Provided are an integrating sphere photometer and a measuring method of the same. The integrating sphere photometer includes a plurality of photodetectors, an integrating sphere having through-holes formed to correspond to the photodetectors, baffles disposed inside the integrating sphere in front of the photodetectors to be spaced apart from the photodetectors, a photometer disposed at a through-hole, and an adjustment unit adjusting output signals of the photodetectors to have the same output signal with respect to light illuminated from a point-like standard light source disposed at a center region in the integrating sphere.

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Номер записи: 66
25-04-2013 дата публикации

DEVICE FOR SPLITTING LIGHT INTO COMPONENTS HAVING DIFFERENT WAVELENGTH RANGES AND METHODS OF USE

Номер: US20130100443A1
Автор: Chen Ye, Li Nan, Wang Xiaobo
Принадлежит: ACEA BIOSCIENCES, INC

A prism including a substrate faceted to provide a plurality of flat surfaces, wherein at least two of the plurality of surfaces, each including a filter coating, form at least two filter surfaces, wherein each filter surface selectively permits passage of a predetermined wavelength and reflects remaining wavelengths along an optical path towards another of the plurality of surfaces, optionally another filter surface, wherein an angle of incidence of each of the plurality of surfaces along the optical path is equal or nearly equal. An apparatus incorporating the prism and its use for splitting a light spectrum into a plurality of wavelengths or wavelength ranges. 1. A prism , comprising a substrate faceted to provide a plurality of flat surfaces , wherein at least two of the plurality of surfaces , each comprising a filter coating , form at least two filter surfaces , wherein each filter surface selectively permits passage of a predetermined wavelength or wavelength range and reflects remaining wavelengths along an optical path towards another of the plurality of surfaces , optionally another filter surface , wherein an angle of incidence of each of the plurality of surfaces along the optical path is equal or nearly equal.2. The prism according to claim 1 , wherein at least one filter is selected from the group consisting of a long-pass filter to selectively permit passage of wavelengths equal or greater than the predetermined wavelength claim 1 , a short-pass filter to selectively permit passage of wavelengths equal or less than the predetermined wavelength claim 1 , and a band-pass filter to selectively permit passage of wavelengths equal to the predetermined wavelength or wavelength range.3. The prism according to claim 2 , comprising a plurality of long-pass filters in a descending series to selectively permit passage of decreasing wavelengths along the series.4. The prism according to claim 2 , comprising a plurality of short-pass filters in an ascending series ...

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Номер записи: 67
25-04-2013 дата публикации

BULK MATERIAL SAMPLING AND LASER TARGETING SYSTEM

Номер: US20130100444A1
Автор: Chesner Warren H., Forgione Matteo, Justus Henry G
Принадлежит: CHESNER ENGINEERING, P.C.

A method is described for providing a continuous flow of a target material past a laser to enable repeated firings of the laser beam at the material in a controlled and uniform fashion. The objective is to provide a means to characterize the target material using laser induced breakdown spectroscopy. The method can be employed in a laboratory or field environment providing improved methods for characterizing in real time the properties of bulk materials. 1. A bulk sampling and laser-targeting system to provide for continuous or semi-continuous monitoring of a bulk stream of material comprising:a material flow system comprising a vertically extending flow chute for permitting gravitational flow of said material, said material comprising fine or coarse grained solid granular material including powder-like materials;a laser optics system for directing a pulsed laser beam into said material flowing through said flow chute through a target orifice in said flow chute for ablating a microgram-sized portion of said material so that a light emission over a wide spectral range is released as electrons interact and recombine with ions;a dust and moisture suppression system for preventing dust and moisture build-up from interfering with said laser beam traveling from said laser optics system to said flow chute; andmeans for delivering light emission from ablated material within said flow chute to a spectrometer for analyzing said light emission;said laser optics system delivering pulsed laser beams to said flowing material through a laser target orifice in said flow chute on a continuous or semi-continuous schedule, while said flow chute minimizes focal length variability of said flowing material including solid particles that are compacted in the flow chute and pressed tightly against a wall of said flow chute by the resistance provided by a flow control means that simultaneously facilitates flow and prevents clogging associated with said flow chute, thereby providing a nearly ...

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Номер записи: 68
02-05-2013 дата публикации

Porous SERS Analytical Devices and Methods of Detecting a Target Analyte

Номер: US20130107254A1
Автор: White Ian M., Yu Wei Wen
Принадлежит: University of Maryland, College Park

A surface enhanced Raman spectroscopy (SERS) analytical device includes a substrate having a porous structure, and a plurality of plasmonic nanoparticles embedding in the porous structure and forming a sensing region. A method of detecting a target analyte in a sample includes contacting the sample with the substrate, whereby the target analyte, if present in the sample, is concentrated in the sensing matrix. The substrate may then be analyzed using SERS detection equipment. 1. A surface enhanced Raman spectroscopy (SERS) analytical device , comprising:a substrate having a porous structure;a plurality of plasmonic nanoparticles embedded in said porous structure and forming a sensing region.2. The substrate of claim 1 , wherein said substrate comprises a material selected from the group consisting of cellulose claim 1 , modified cellulose claim 1 , a natural polymer claim 1 , an artificial polymer claim 1 , glass fibers claim 1 , a metal claim 1 , and combinations thereof.3. The substrate of claim 1 , wherein said plurality of plasmonic nanoparticles comprises one or more clusters of nanoparticles.4. The substrate of claim 1 , wherein said plurality of plasmonic nanoparticles comprises individual nanoparticles discretely spaced relative to each other.5. The substrate of claim 1 , wherein said plasmonic nanoparticles are formed from a material selected from the group consisting of silver claim 1 , gold claim 1 , copper claim 1 , platinum claim 1 , and combinations thereof.6. The substrate of claim 1 , wherein said substrate includes at least one of a hydrophilic portion or a hydrophobic portion.7. A method of fabricating a surface enhanced Raman spectroscopy (SERS) device claim 1 , comprising the steps of:providing a substrate having a porous morphology;embedding a plurality of plasmonic nanoparticles in the porous substrate, thereby forming a SERS sensing region.8. The method of claim 7 , comprising the further step of modifying at least a portion of the substrate to ...

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Номер записи: 69
02-05-2013 дата публикации

Spectrophotometer

Номер: US20130107255A1
Автор: Daisuke Kurimoto, Shigeru Matsui
Принадлежит: Hitachi High Technologies Corp

Disclosed is a spectrophotometer capable of achieving a good signal-to-noise ratio by improving the use efficiency of the amount of light emitted from a Xe flash lamp or other intermittent light source. Light having a desired wavelength is selected from the light emitted from the Xe flash lamp ( 1 ), which is a single light source having a wide wavelength range, allowed to pass through a sample ( 7 ), detected by a photodetector ( 21, 22 ), and supplied to a low-pass filter ( 24 ) in a signal processing circuit ( 23 ). The duration of the waveform of a signal output from the photodetector ( 21, 22 ) is extended by the low-pass filter ( 24 ), which has a time constant equivalent to the elapsed time required for the intensity of the light emitted from the Xe flash lamp ( 1 ) to decrease from a peak value to a half value and acts as delay means or other duration extension means. The signal having a waveform whose duration is extended is supplied to a computer ( 30 ) through an amplifier ( 25 ) and an analog-to-digital conversion circuit ( 26 ). As the signal having the waveform whose duration is extended can be used, it is possible to enhance the use efficiency of the total amount of emitted light and optimize the effect of signal-to-noise ratio improvement.

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Номер записи: 70
02-05-2013 дата публикации

Spectrometer

Номер: US20130107260A1
Автор: Takeshi Nozawa
Принадлежит: Seiko Epson Corp

A spectrometer includes a light source section that includes a plurality of LEDs having different emission wavelengths, a variable wavelength interference filter that selectively extracts light of a predetermined wavelength, a detector that detects the amount of light, and a control circuit section. The control circuit section includes a mode switching section that switches a calibration mode and a measurement mode, an outside light analysis section that analyzes characteristics of outside light in the calibration mode, a reference light setting section that set the amount of light emitted from each of the LEDs on the basis of the characteristics of the outside light, and a light source driving section that drives each of the LEDs on the basis of the amount of light emitted which is set in the measurement mode.

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Номер записи: 71
02-05-2013 дата публикации

Electric field spectrum measurement device and object measurement device

Номер: US20130107269A1
Автор: Tatsutoshi Shioda
Принадлежит: Nagaoka University of Technology NUC

Every depth of the measurement object measures energy structural information, refractive index, transmittance, reflectance other than property information of (as for the resolution several microns), e.g., space information at the same time. A spectrum measurement device receives a reference wave propagating in a reference path and a measurement wave propagating in a measurement path having a start point same as a start point of the reference path, and derives a spectrum of the measurement wave. The space information of the measuring object, energy structural information, refractive index, transmittance, a reflective index using spectrum measurement device are derived.

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Номер записи: 72
02-05-2013 дата публикации

STATIC FOURIER SPECTROMETER

Номер: US20130107270A1
Автор: Belash Alexandr Olegovich, Bogachev Dmitrii Lvovich, Senichenkov Vasilii Andreevich, Stroganov Alexander Anatolyevich
Принадлежит:

The reported invention belongs to spectral interference devices and can be used for spectral research in various fields of technology. 1. A static Fourier spectrometer containing an input collimator optically connected with an interferometric unit comprising a beam splitter and at least two reflectors installed with the ability to create an interference image localized in the reflectors plane , and also a recording device optically connected with the interferometric unit by means of a projective system with the ability to project the indicated interference image picture on the recording device , wherein the projective system comprises a spherical reflector and a lens objective centered relative to the normal line to the optical surface of the reflector , with the reflector and the lens objective being made with the ability of optical radiation to pass through the lens objective from the interferometric unit to the spherical reflector with the reflection from it and passing through the same lens objective to the recording device.2. The Fourier spectrometer according to the claim 1 , wherein the lens objective comprises at least two lenses made of different materials and connected by an optical contact claim 1 , with one of the lenses being made planoconvex and the second lens connected with it being made in the meniscus form.3. The Fourier spectrometer according to the claim 1 , wherein the interferometric unit is made as two glass rectangular prisms glued by hypotenuse faces one of which is coated with beam splitting cover claim 1 , with the reflectors being made on one of the cathetus surfaces of each prism and the prisms being glued so that the faces with the reflectors are adjacent faces of the polyhedron resulting from the gluing claim 1 , with one of the prisms of the interferometric unit being connected with the lens objective of the projective system by an optical contact.4. The Fourier spectrometer according to the claim 3 , wherein the projective system ...

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Номер записи: 73
09-05-2013 дата публикации

Method for Characterising an Agri-Food Product and Device for Implementing Such a Method

Номер: US20130112895A1
Автор: Birlouez-Aragon Inès, Rizkallah Jad
Принадлежит: SPECTRALYS INNOVATION

The invention relates to a method for characterising one or more samples of an agri-food product, in particular intended for determining the naturality, freshness and authenticity of such a product and/or the conformity of same with a target product. The method of the invention is characterised in that it comprises: acquiring a plurality of natural fluorescence spectra of the sample; applying a multivariate or multi-path analysis method to said spectra, wherein said method provides a limited number F of variables representing said or each sample, in order to enable the representation thereof by a point (PE) in a space having F dimensions; calculating a distance (D) between said point representing said or each sample and a target (C) representing one or more reference samples; and determining a characteristic of said or each sample according to said distance (D). 1. A method for characterizing one or more samples of an agri-food product , characterized in that it comprises:a) illuminating said or each sample to be analyzed with a plurality of excitation light radiations having respective wavelengths;b) acquiring natural-fluorescence spectra of said or of each sample, each corresponding to a respective excitation light radiation;c) applying a multi-way analysis method to said spectra, which provides a number F of variables representative of said or of each sample, such that said or each sample can be represented by a point in a space having F dimensions;d) calculating a distance (D), in said space having F dimensions, between the point representing said or each sample and a target representing one or more reference samples; ande) determining a characteristic of said or of each sample according to said distance.2. The method as claimed in claim 1 , in which said characteristic is chosen from a naturality indicator claim 1 , a freshness indicator claim 1 , an authenticity indicator and a conformity indicator.3. The method as claimed in claim 1 , in which the number F of ...

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Номер записи: 74
16-05-2013 дата публикации

Electrothermal Vaporization Atomic Fluorescence Spectroscopy and Spectrometer for Determination of Cadmium

Номер: US20130119271A1
Автор: Feng Li, Liu Jixin
Принадлежит: BEIJING TITAN INSTRUMENTS CO., LTD.

An electrothermal vaporization atomic fluorescence spectrometer for determination of Cadmium comprising a sampling system, a light source, an atomizer, a light path system, a detection system, and a display device. The sampling system includes an electrothermal vaporization device and a capture trap; the capture trap comprises a Tungsten or Molybdenum coil (), a holder (), a cover () and a power supply (); the cover () and the holder () form a sealed space; the Tungsten or Molybdenum coil () is arranged on the holder (); the Tungsten or Molybdenum coil () is located inside the sealed space formed by the cover () and the holder (); and the cover () is provided with an inlet () and an outlet () thereon. An electrothermal vaporization atomic fluorescence spectroscopy for determination of Cadmium is also provided. 15-. (canceled)6. An electrothermal vaporization atomic fluorescence spectrometer for determination of Cadmium comprising a sampling system , a light source , an atomizer , a light path system , a detection system , and a display device , wherein the sampling system includes an electrothermal vaporization device and a capture trap; the capture trap comprises a Tungsten or Molybdenum coil , a holder , a cover and a power supply; the cover and the holder form a sealed space; the Tungsten or Molybdenum coil is arranged on the holder; the Tungsten or Molybdenum coil is located inside the sealed space formed by the cover and the holder; and the cover is provided with an inlet and an outlet thereon.7. The electrothermal vaporization atomic fluorescence spectrometer for determination of Cadmium according to claim 6 , wherein the electrothermal vaporization device comprises a shielding cover claim 6 , an evaporation boat claim 6 , electrodes claim 6 , an electrode holder and a power supply; the electrodes is located under the evaporation boat claim 6 , and connected to the evaporation boat; the electrodes are arranged on the electrode holder; the power supply and ...

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Номер записи: 75
16-05-2013 дата публикации

Dynamic signal extension in optical detection systems

Номер: US20130119277A1
Автор: Bernhard Schinwald, Josef J. Atzler
Принадлежит: Molecular Devices LLC

Systems and methods for measuring a target in a sample, the target being capable of generating an emitted light in response to an excitation light. In an example system, an excitation light source generates the excitation light along an excitation optical path. An attenuation filter arrangement selectively adds an attenuation filter to the excitation optical path. The attenuation filter attenuates the excitation light by a corresponding attenuation factor. The excitation light exits the attenuation filter arrangement along the excitation optical path to illuminate the sample. A light energy detector receives the emitted light generated in response to the excitation light, and outputs a measured signal level corresponding to an emitted light level. If the light energy detector indicates an overflow, signal measurement is repeated with attenuation filters of increasing attenuation factors until the measured signal level does not overflow.

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Номер записи: 76
16-05-2013 дата публикации

Recording a spectrally resolved image by reading out several partial arrays in a plurality of interferometer scans

Номер: US20130120755A1
Автор: Gerhard Joern-Hinnrich, Harig Roland
Принадлежит: BRUKER OPTIK GMBH

A method for the acquisition (AU) of a spectrally resolved, two-dimensional image by means of Fourier transform (=FT) spectroscopy or Fourier transform infrared (=FTIR) spectroscopy, is characterized in that, during multiple passes (D-D) of an optical path difference (OG) between two partial rays () over an identical range (IB), different subsets of detector elements () of an array detector () are read out and the signals of the read-out detector elements () of the multiple passes (D-D) are Fourier transformed and combined to form the spectrally resolved image. A method is thereby provided for the acquisition of two-dimensional, spectrally resolved images, in which the influence of vibrations on the measurement is reduced, and which is less affected by the movement of objects to the resolved spectrally. 1. A method for acquisition of a spectrally resolved , two-dimensional image by means of Fourier transform (=FT) spectroscopy or Fourier transform infrared (=FTIR) spectroscopy , the method comprising the steps of:a) feeding light to an interferometer, thereby splitting the light into two partial beams;b) changing an optical path difference between the two partial beams, thereby traversing an identical range several times;c) detecting the light with a two-dimensional array detector;d) reading out different subsets of detector elements of the array detector during multiple passes of the optical path difference between the two partial rays over the identical range as generated in step b); ande) Fourier transforming and combining signals of read-out detector elements of the multiple passes to form the spectrally resolved image.2. The method of claim 1 , wherein the subsets each form a respective cohesive or rectangular sub-array of detector elements of the array detector.3. The method of claim 2 , wherein the spectrally resolved image is combined using signals from non-overlapping sub-arrays of detector elements of the array detector.4. The method of claim 1 , wherein ...

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Номер записи: 77
23-05-2013 дата публикации

SPREAD ANALYSIS DEVICE FOR LUBRICANT, METHOD, AND RECORDING MEDIUM

Номер: US20130126736A1
Автор: IRISAWA Akiyoshi, KATO Eiji
Принадлежит: ADVANTEST CORPORATION

An electromagnetic wave output device outputs an electromagnetic wave. An optical element has a total reflection surface for totally reflecting the electromagnetic wave, and causes the device under test to receive an evanescent wave generated from the total reflection surface. An electromagnetic wave detector detects the electromagnetic wave, and a spectrum deriver derives a reflectance of the electromagnetic wave on the total reflection surface or a value based on the reflectance based on a detection result by the electromagnetic wave detector while the reflectance or the value based on the reflectance is associated with the frequency of the electromagnetic wave and a manufacturing condition of the particle or the device under test. A characteristic extractor extracts a characteristic based on the manufacturing condition from a derived result by the spectrum deriver. 1. A device for analyzing a spread state of a lubricant in a device under test in which particles constructing a tablet and the lubricant are mixed with each other , comprising:an electromagnetic wave output device that outputs an electromagnetic wave having a frequency equal to or higher than 20 GHz and equal to or lower than 500 THz;an optical element that has a total reflection surface for totally reflecting the electromagnetic wave, and causes the device under test to receive an evanescent wave generated from the total reflection surface;an electromagnetic wave detector that detects the electromagnetic wave totally reflected by the total reflection surface;a spectrum deriving unit that derives a reflectance of the electromagnetic wave on the total reflection surface or a value based on the reflectance based on a detection result by the electromagnetic wave detector while the reflectance or the value based on the reflectance is associated with the frequency of the electromagnetic wave and a manufacturing condition of the particle or the device under test; anda characteristic extraction unit that ...

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Номер записи: 78
23-05-2013 дата публикации

System and Method for Detection of Analytes in Exhaled Breath

Номер: US20130128260A1
Автор: Göran Palmskog, Olof Beck, Per Ola Andersson
Принадлежит: Sensa Bues AB

A device, system, and methods are disclosed for detecting the presence or determining a quantitative amount of at least one drug substance from exhaled breath of a subject in-situ. A collecting surface has a Surface Enhanced Raman Spectroscopy (SERS)-active layer that comprises at least one SERS-active material. The collecting surface is arranged as an outer surface of a waveguide for contact with exhaled breath, such that at least traces of said at least one drug substance in said exhaled breath can contact said SERS-active layer for read-out of a Raman shift spectrum that is detected in-situ for said detecting the presence or determining the quantitative amount of said at least one drug substance from said exhaled breath.

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Номер записи: 79
23-05-2013 дата публикации

THIN LAYER CHROMATOGRAPHY-SURFACED ENHANCED RAMAN SPECTROSCOPY CHIPS AND METHODS OF USE

Номер: US20130128265A1
Автор: Abell Justin L., Chen Jing, Zhao Yiping
Принадлежит: University of Georgia Research Foundation, Inc.

The present disclosure includes methods of simultaneous analyte separation and detection using surface enhanced Raman spectroscopy (SERS)-active ultra thin layer chromatography (UTLC) chips. The SERS-active UTLC chips of the present disclosure are used to physically separate compounds within a mixture, which are then identified based on their unique SERS spectra. 1. A method of simultaneous analyte separation and detection in a sample , comprising:providing a SERS-active UTLC chip, wherein the SERS-active UTLC chip comprises an array of nanostructures on a surface of a substrate;applying at least one sample comprising at least one analyte to the SERS-active UTLC chip;acquiring at least one SERS spectra for each sample at the sample origin on the chip;immersing at least a portion of the SERS-active UTLC chip in a mobile phase solvent, wherein the at least one sample is above the mobile phase solvent;developing the chip so that the at least one analyte is physically separated;acquiring at least one SERS spectra for each sample along an UTLC development direction; andanalyzing all of the SERS spectra to identify the at least one analyte in each sample.2. The method of claim 1 , wherein the array of nanostructures comprise Ag nanorods fabricated by oblique angle deposition (OAD).3. The method of claim 2 , wherein a tilt angle β between an individual nanorod and the substrate surface is less than about 90 degrees4. The method of claim 3 , wherein the OAD fabrication comprises:rotating the substrate in a polar direction relative to a vapor arrival line of a vapor flux of a material to achieve a desired incident angle between the vapor arrival line and the substrate;optionally rotating the substrate azimuthally;exposing at least a portion of the surface of the substrate to the vapor flux of a material at the desired incident angle; andforming the array of nanorods on the surface of the substrate.5. The method of claim 4 , wherein the substrate is planar claim 4 , wherein ...

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Номер записи: 80
30-05-2013 дата публикации

Chemical mapping using thermal microscopy at the micro and nano scales

Номер: US20130134310A1
Автор: Chris Kendziora, Nabil D. Bassim, Robert Andrew Mcgill, Robert Furstenberg, Viet K. Nguyen
Принадлежит: Chris Kendziora, Nabil D. Bassim, Robert Andrew Mcgill, Robert Furstenberg, Viet K. Nguyen

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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Номер записи: 81
30-05-2013 дата публикации

Targeted Agile Raman System for Detection of Unknown Materials

Номер: US20130135609A1
Автор: Gardner, JR. Charles, Nelson Matthew
Принадлежит: ChemImage Corporation

The present disclosure provides for a system and method for detecting unknown materials. A test data set, which may comprise a hyperspectral data set, is generated representative of a first location. The test data set may be analyzed to determine a second location which may be interrogated using a Raman spectroscopic device to generate a Raman data set. The Raman data set may be analyzed to associated an unknown material with a known material such as: a chemical material, a biological material, an explosive material, a hazardous material, a drug material, and combinations thereof. 1. A method comprising:scanning a first location comprising an unknown material using a first modality to generate a test data set representative of the first location;analyzing the test data set to identify a second location;assessing the second location using a Raman spectroscopic device to generate a Raman data set representative of the second location; andanalyzing the Raman data set to associate the unknown material with at least one known material.2. The method of wherein at least a portion of the first location and the second location overlap.3. The method of wherein generating the test data set further comprises:illuminating the first location to generate a first plurality of interacted photons;passing the first plurality of interacted photons through a filter; anddetecting the first plurality of interacted photons to generate the test data set.4. The method of wherein the filter further comprises at least one of: a tunable filter claim 3 , a fixed filter claim 3 , a dielectric filter claim 3 , and combinations thereof.5. The method of wherein the illuminating is achieved using at least one of: active illumination claim 3 , passive illumination claim 3 , and combinations thereof.6. The method of wherein illuminating further comprises the use of a tunable illumination source.7. The method of wherein assessing the second location further comprises:illuminating the second location to ...

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Номер записи: 82
30-05-2013 дата публикации

QUASI-TRANSLATOR, FOURIER MODULATOR, FOURIER SPECTROMETER, MOTION CONTROL SYSTEM AND METHODS FOR CONTROLLING SAME, AND SIGNAL PROCESSOR CIRCUIT

Номер: US20130135622A1
Автор: Bleier Zvi, Jacobson Alexander, Kisslinger Jack Gordon, Vidrine Drouét Warren
Принадлежит: FTRX LLC

A quasi-translator for economically producing pure, smooth translational motion with broad arcuate or error-free motion regardless of orientation, which is useful in numerous interferometer applications including spectroscopy, a Fourier modulator and a Fourier spectrometer are provided. The quasi-translator utilizes a support, an arm including a driving magnet on a first end and a driven element on a second end, an axis for rotation of the arm, a bearing system that controls the rotation of the arm about the axis, a drive coil and a drive amplifier to drive the arm in the arcuate motion. The quasi-translator may be employed in a Fourier modulator to change the optical path difference of the interferometer/quasi-translator at a substantially constant rate of change. The quasi-translator and/or Fourier modulator may be used in a Fourier spectrometer to create an optical spectrum from a light beam and/or electrical signal created from the light beam. 1. A quasi-translator , comprising:a. a support;b. an arm having a first end and a second end and including a driven element disposed on and/or connected to the second end;c. a driving element;d. an axis, disposed in or on the support, substantially transverse, substantially perpendicular or perpendicular to the arm, that operates as an axis of rotation of the arm;e. a bearing system fixed to the support, disposed on or along the axis, that operates to constrain or permit the arm to rotate about the axis in a plane substantially transverse, substantially perpendicular or perpendicular to the axis;f. a drive coil disposed substantially in, in or adjacent to the plane of rotation, the drive coil operating to interact with the driving element and create the translational motion that moves the arm; andg. a drive amplifier, connected to the drive coil, acting as a voltage source to drive the arm in an arc of a predetermined size and/or shape approximating a translation in one or more predetermined directions.2. The quasi- ...

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Номер записи: 83
06-06-2013 дата публикации

Detecting surface stains using high absorbance spectral regions in the mid-ir

Номер: US20130140462A1
Автор: Heather Brooke, Jessica N. Mccutcheon, Megan R. Pearl, Michael L. Myrick, Stephen L. Morgan
Принадлежит: UNIVERSITY OF SOUTH CAROLINA

Methods and systems for detecting the presence of a substance on a surface are provided. The method can include directing a modulated light beam (e.g., having a wavelength of about 3 to about 20 μm) from a light source to a beam expander such that the beam expander widens the diameter of the light beam into an expanded beam. The expanded beam can then be directed onto the surface to form an illuminated area. A specular reflection can then be detected from the illuminated area on the surface in each light cycle, and the presence of the substance on the surface can be determined.

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Номер записи: 84
06-06-2013 дата публикации

Process and Installation for Inspection and/or Sorting Combining Surface Analysis and Volume Analysis

Номер: US20130141115A1
Автор: Antoine Bourely, Benjamin Blampey, David Mouneyrac, Frederic Garet, Jean-Louis Coutaz
Принадлежит: Pellenc Selective Technologies SA, Universite Savoie Mont Blanc

Automatic process and installation for inspecting and/or sorting objects or articles belonging to at least two different categories, and made to advance approximately in a single layer, for example on a conveyor belt or a similar transport support. The process includes subjecting the advancing flow of objects or articles to at least two different types of contactless analysis by radiation, whose results are used in a combined manner for each object or article to perform a discrimination among these objects or articles and/or an evaluation of at least one characteristic of the latter, the analyses including at least one surface analysis process able to determine the physical and/or chemical composition of the outer layer of an object or article exposed to the radiation used in this process, and at least one volume analysis process able to determine the equivalent thickness of material of the same object or article.

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Номер записи: 85
06-06-2013 дата публикации

PLASMA DIAGNOSTIC APPARATUS AND METHOD

Номер: US20130141720A1
Автор: JANG Sung Ho, Jeon Sang Jean, Lee Sang Heon, Park Ho Yong, Protopopov Vladimir, VOLYNETS Valdimir
Принадлежит: SAMSUNG ELECTRONICS CO., LTD.

A plasma diagnostic apparatus includes a vacuum chamber unit having at least one electrode and having plasma generated inside. A bias power unit is disposed inside the vacuum chamber unit to apply a radio frequency voltage to an electrode that supports a wafer. A spectrum unit decomposes light emitted from inside the plasma according to wavelengths. A light detection unit detects the light decomposed according to wavelengths. A control unit controls a turn-on and turn-off process of the light detection unit according to a waveform of the radio frequency voltage. 1. A plasma diagnostic apparatus comprising:a vacuum chamber unit having at least one electrode and configured to generate plasma;a bias power unit disposed inside the vacuum chamber unit and configured to apply a radio frequency voltage to an electrode that supports a wafer;a spectrum unit configured to decompose light emitted from inside the plasma according to wavelengths;a light detection unit configured to detect the light decomposed according to wavelengths; anda control unit configured to control a turn-on and turn-off process of the light detection unit according to a waveform of the radio frequency voltage.2. The plasma diagnostic apparatus of claim 1 , wherein the control unit is configured to control the turn-on and turn-off process of the light detection unit using a gate signal claim 1 , and the gate signal has a period equal to half-period of the radio frequency voltage.3. The plasma diagnostic apparatus of claim 2 , wherein the control unit is configured to control a time delay of the gate signal according to a phase difference between the radio frequency voltage and an optical flux and the optical flux is detected by the light detection unit.4. The plasma diagnostic apparatus of claim 3 , wherein the control unit is configured to control the light detection unit to maintain a turn-on status for a period of time when the light flux detected by the light detection unit has a maximum amplitude ...

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Номер записи: 86
06-06-2013 дата публикации

LIGHT SOURCE CLASSIFICATION SYSTEM AND METHOD

Номер: US20130141725A1
Автор: YUN Sang Bok
Принадлежит: SAMSUNG ELECTRONICS CO., LTD.

A method of light source classification includes determining a plurality of color regions in the CIE 1976 chromaticity diagram according to desired classification criteria. The plurality of color regions of the CIE 1976 chromaticity diagram are converted into a plurality of color classification regions defined by color coordinates of the CIE 1931 chromaticity diagram. The light source is classified into one of the plurality of color classification regions. This classification method may allow for precise classification based on actual color differences, while providing light sources having color uniformity in the same classification region. 1. A method of light source classification comprising:determining a plurality of color regions in a CIE 1976 chromaticity diagram according to desired classification criteria;determining a plurality of color classification regions corresponding to the plurality of color regions through coordinate conversion, thereby allowing the plurality of color regions of the CIE 1976 chromaticity diagram to be converted into the plurality of color classification regions defined by color coordinates of a CIE 1931 chromaticity diagram;measuring CIE 1931 color coordinates of light emitted from a light source to be classified; andclassifying the light source according to one of the plurality of color classification regions, in which the measured CIE 1931 color coordinates are located.3. The method of claim 1 , wherein the determining of the plurality of color regions in the CIE 1976 chromaticity diagram comprises setting variations (Δu′ claim 1 , Δv′) in coordinates to range from 0.001 to 0.05 in the same color region.4. The method of claim 1 , wherein each of the plurality of color regions in the CIE 1976 chromaticity diagram has a boundary coinciding with or being parallel to a color temperature line or a black body locus claim 1 , andeach of the plurality of color classification regions in the CIE 1931 chromaticity diagram is deviated from or ...

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Номер записи: 87
13-06-2013 дата публикации

Color sensing device

Номер: US20130148124A1
Автор: Brett E. Dahlgren, Stephan R. Clark
Принадлежит: Hewlett Packard Development Co LP

A color sensing apparatus ( 10 ) includes au optical system ( 16 ) that produces a spatially uniform light beam ( 18 ).

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Номер записи: 88
20-06-2013 дата публикации

INLINE SPECTROSCOPIC READER AND METHODS

Номер: US20130155402A1
Автор: Doering William E., Natan Michael J., Walton Ian D.
Принадлежит: Cabot Security Materials, Inc.

An inline spectroscopic reader having a light source, one or more optics heads, a spectrometer and a data processing system in digital communication with the spectrometer detector. The optics heads include transmission optics providing for the illumination of a target with light from the light source and detection optics providing for the collection of light from the target. Typically, the target is moving with respect to the optics head during spectroscopic interrogation. The spectroscopic reader is thus an inline reader well suited to provide spectrum based production or analytical decision making in real time as the target moves along a production or analysis line. Also disclosed are methods including the steps of illuminating a target with light from a light source; collecting light from the target; obtaining a digitized spectrum with a spectrometer; extracting information content from the digitized spectrum; and basing a contemporaneous process decision upon the information content. 1. An inline spectroscopic reader comprising:a light source;an optics head comprising transmission optics providing for the illumination of a target with light from the light source wherein the target is moving with respect to the transmission optics, and detection optics providing for the collection of light from the target;a spectrometer in optical communication with the optics head having a detector providing for a digital spectrum output; anda data processing system in digital communication with the detector providing substantially contemporaneous spectroscopic analysis of the light collected from the target.2. The inline spectroscopic reader of further comprising multiple optics heads in optical communication with one light source.3. The inline spectroscopic reader of further comprising multiple optics heads in optical communication with one spectrometer.4. The inline spectroscopic reader of further comprising multiple optics heads in optical communication with one light source ...

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Номер записи: 89
20-06-2013 дата публикации

Spectrophotometer

Номер: US20130155405A1
Автор: Kazumi Yokota, Taro Osumi, Toshiro Kimura
Принадлежит: Shimadzu Corp

In order to provide a spectrophotometer, which can detect, by means of output intensity signals obtained by a photodetector, the entry of external light at the time of sample cell replacement and the like without providing a door with an opening/closing sensor or the like, a spectrophotometer ( 60 ) is provided with: a photodetector ( 12 ); a light blocking unit ( 41 ); a storage unit ( 34 ), which stores a light blocking period where light is blocked by means of the light blocking unit ( 41 ) and output intensity signals obtained by the photodetector ( 12 ) by corresponding the light blocking periods to the output intensity signals; and a control unit ( 31 b ), which calculates transmittance or light absorbance on the basis of the output intensity signals in the light blocking periods, said output intensity signals having been stored in the storage unit ( 34 ), and output intensity signals in light entry periods. The spectrophotometer is characterized in that the storage unit ( 34 ) stores a threshold for detecting the entry of external light into the photodetector ( 12 ), and that the control unit ( 31 c ) detects the entry of the external light into the photodetector ( 12 ) on the basis of the output intensity signals in the light blocking periods, and the threshold.

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Номер записи: 90
20-06-2013 дата публикации

Simulated Moving Bed Systems for Separation of Para-xylene and Processes for Determining Pump-Around Profiles of the Simulated Moving Bed Systems

Номер: US20130158332A1
Автор: Murray Richard C., Rauch Andrea L.
Принадлежит: UOP LLC

Embodiments of simulated moving bed systems for separating a preferentially adsorbed component from a feed stream and processes for determining a pump-around profile of the simulated moving bed systems are provided. The process comprises the steps of rotating a rotary valve to a first valve position to direct the feed stream to a first adsorbent sub-bed. An intermediate stream between two adsorbent sub-beds in direct fluid communication with each other is irradiated with laser light that is directed from a probe of a Raman system positioned for inline sampling of the intermediate stream. Scattered light from the irradiated intermediate stream is collected with the probe. A spectrum of the scattered light is generated with the Raman system to determine concentrations of the preferentially adsorbed component and one or more other components in the intermediate stream. 1. A process for determining a pump-around profile of a simulated moving bed system having a plurality of adsorbent sub-beds in fluid communication with each other and with a rotary valve for separating one or more preferentially adsorbed components from a feed stream comprising the preferentially adsorbed component and one or more other non-preferentially adsorbed components , the process comprising the steps of:rotating the rotary valve to a first valve position to direct the feed stream to a first adsorbent sub-bed of the plurality of adsorbent sub-beds;irradiating an intermediate stream between two of the adsorbent sub-beds in direct fluid communication with each other with laser light that is directed from a probe of a Raman system positioned for inline sampling of the intermediate stream;collecting scattered light from the irradiated intermediate stream with the probe; andgenerating a spectrum of the scattered light with the Raman system to assess concentrations of the preferentially adsorbed component and one or more other components in the intermediate stream.2. The process of claim 1 , wherein ...

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Номер записи: 91
27-06-2013 дата публикации

SUPERIOR ANALYZER FOR RAMAN SPECTRA WITH HIGH ACCEPTANCE CONE, RESOLUTION, TRANSMISSION, QUANTUM EFFICIENCY, AND STRONG BACKGROUND REDUCTION

Номер: US20130162988A1
Автор: Borysow Jacek, Fink Manfred, Varghese Philip
Принадлежит:

A Raman analyzer for analyzing light emitted from a Raman cell is provided that has a beam splitter configured to split the light emitted from the Raman cell into a first beam and a second beam. An atomic vapor filter can be used to filter a Raman scattered line from the first beam and a chopper system can periodically interrupt the first and second beams that are directed towards a photo detector, which can convert light from the first and second beams into an electrical signal. The signal output from the photo detector can optionally be amplified, digitized, Fourier filtered, and/or subjected to Fourier analysis. 1. A Raman analyzer for analyzing light emitted from a Raman cell , comprising:a beam splitter configured to split the light emitted from the Raman cell into a first beam and a second beam;an atomic vapor filter configured to remove a Raman scattered line from the first beam;a chopper system configured to periodically interrupt the first and second beam; anda photo detector configured to convert light from the first and second beams into an electrical signal.2. The analyzer of claim 1 , wherein the beam splitter is a 90/10 beam splitter such that the first beam comprises 90% of the light input into the beam splitter claim 1 , and the second beam comprises 10% of the light input into the beam splitter.3. The analyzer of claim 1 , wherein the atomic vapor filter comprises a cesium vapor filter.4. The analyzer of claim 1 , wherein the chopper system periodically interrupts the first and second beam with incommensurable frequency.5. The analyzer of claim 1 , wherein the photo detector is an avalanche photo diode.6. The analyzer of claim 1 , further comprising a pinhole filter to filter the light emitted from the Raman cell and to output a beam of light having a smooth transverse intensity profile.7. The analyzer of claim 6 , further comprising a narrow band-pass filter configured such that its center wavelength coincides with the wavelength of the D1 line of ...

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Номер записи: 92
27-06-2013 дата публикации

Method for Automatically Calibrating a Raman Spectrum Detection System and Raman Spectrum Detection System

Номер: US20130162989A1
Автор: Chen Zhiqiang, Gai Hongfeng, Li Mingliang, Li Yuanjing, LIU Yinong, Wang Hongqiu, Yu Dongmei, Zhang Li, Zhao Ziran
Принадлежит:

The present disclosure relates to a Raman spectrum detection system, which comprises a light source for emitting excitation light that excites a detected object to emit Raman light; an external light path system for irradiating light emitted from the light source on the detected object and collecting the Raman light emitted by the detected object; a light detection device for receiving the Raman light collected by the external light path system and detecting said Raman light to obtain spectrum data thereof; a control device for controlling the excitation light source to provide the excitation light, controlling the light detection device to detect the Raman light, receiving the spectrum data output from the light detection device, and analyzing said spectrum data to identify the detected object; and an automatic calibration device for holding the standard sample and for automatically calibrating the system. The present disclosure also relates to a method for detecting an object using the Raman spectrum detection system, and a method for automatically calibrating the Raman spectrum detection system. 1. A Raman spectrum detection system , comprising:a light source for emitting excitation light that excites the detected object to emit Raman light;an external light path system for irradiating light emitted from the light source on a detected object and collecting the Raman light emitted by the detected object;a light detection device for receiving the Raman light collected by the external light path system and detecting said Raman light to obtain spectrum data thereof;a control device for controlling the excitation light source to provide the excitation light, controlling the light detection device to detect the Raman light, receiving the spectrum data output from the light detection device, and analyzing said spectrum data to identify the detected object; andan automatic calibration device for automatically calibrating the Raman spectrum detection system.2. The Raman ...

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Номер записи: 93
27-06-2013 дата публикации

SPECTROMETRY DEVICE AND SPECTROMETRY METHOD

Номер: US20130162990A1
Автор: Kobayashi Minoru, Ota Taisuke
Принадлежит: NANOPHOTON CORPORATION

A spectrometry device according to an aspect of the present invention is including a light source (), a lens concentrating a light beam from the light source () on a reference sample (), an objective lens () concentrating a light beam that has passed through the first lens () on a measurement sample (), a spectroscope () dispersing light having a different wavelength from that of the light beam generated in the measurement sample () and the reference sample () by irradiation of the light beam into a spectrum, a detector () detecting light that is dispersed by the spectroscope (), and a beam splitter () separating an optical path of light from the reference sample () and the measurement sample () toward the spectroscope () from an optical path of a light beam that propagates from the light source () toward the measurement sample (). 1. A spectrometry device that performs spectrometry for light from a measurement sample and a reference sample and thereby detects respective peak positions in spectrums of the light from the measurement sample and the reference sample , comprising:a light source;a first lens that concentrates a light beam from the light source on the reference sample;a second lens that concentrates a light beam that has passed through the first lens on the measurement sample;a spectroscope that disperses light that is generated in the measurement sample and the reference sample by irradiation of the light beam and has a different wavelength from that of the light beam into a spectrum;a detector that detects light that is dispersed by the spectroscope; andlight splitter for separating an optical path of light that is heading from the reference sample and the measurement sample toward the spectroscope from an optical path of a light beam that is heading from the light source toward the measurement sample, whereina peak wavelength of a spectrum of light that is dispersed by the spectroscope is obtained, and a peak wavelength of light generated in the ...

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Номер записи: 94
27-06-2013 дата публикации

IMAGE FORMING APPARATUS AND CONTROL METHOD OF IMAGE FORMING APPARATUS

Номер: US20130162998A1
Автор: Furuta Yasutomo
Принадлежит: CANON KABUSHIKI KAISHA

An image forming apparatus includes an image forming unit configured to form a measurement image on a sheet, a measurement unit configured to measure the measurement image formed on the sheet to output a measurement value, a white reference plate provided at a position facing to the measurement unit, and a correction unit configured to correct the measurement value output from the measurement unit according to a distance from the measurement unit to the white reference plate in a case where the measurement image formed on the sheet is measured. 1. An image forming apparatus comprising:an image forming unit configured to form a measurement image on a sheet;a measurement unit configured to measure the measurement image formed on the sheet to output a measurement value;a white reference plate provided at a position facing to the measurement unit; anda correction unit configured to correct the measurement value output from the measurement unit according to a distance from the measurement unit to the white reference plate in a case where the measurement image formed on the sheet is measured.2. The image forming apparatus according to claim 1 , wherein the measurement unit is configured to irradiate the measurement image with light and receive reflected light from the measurement image to output a spectral reflectance as the measurement value.3. The image forming apparatus according to claim 2 ,wherein the measurement unit is configured to measure light reflected from the white reference plate to output a first spectral reflectance, andwherein the correction unit is configured to correct the first spectral reflectance according to the distance from the measurement unit to the white reference plate to calculate a second spectral reflectance.4. The image forming apparatus according to claim 3 , wherein the correction unit is configured to correct the spectral reflectance output from the measurement unit based on the second spectral reflectance in a case where the ...

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Номер записи: 95
27-06-2013 дата публикации

Classification Using Multivariate Optical Computing

Номер: US20130162999A1
Автор: Hill Laura S., Myrick Michael L., Pearl Megan R., Richardson Tammi L., Shaw Timothy J., Swanstrom Joseph A.
Принадлежит: UNIVERSITY OF SOUTH CAROLINA

Methods for in situ detection and classification of analyte within a fluid sample are provided. In one embodiment, the method can include: (a) continuously flowing the fluid sample through a multivariate optical computing device, wherein the multivariate optical computing device illuminates an area of the fluid sample as it flows through the multivariate optical computing device to elicit a continuous series of spectral responses; (b) continuously measuring the series of multivariate spectral responses as the fluid sample flows through the multivariate optical computing device; (c) detecting an analyte (e.g., phytoplankton) in the sample based on an multivariate spectral response of the plurality of spectral responses; and (d) classifying the analyte based on the multivariate spectral response generated by the analyte. 1. A method of in situ detection and classification of analyte within a fluid sample , the method comprising:continuously flowing the fluid sample through a multivariate optical computing device, wherein the multivariate optical computing device illuminates an area of the fluid sample as it flows through the multivariate optical computing device to elicit a continuous series of spectral responses;continuously measuring the series of multivariate spectral responses as the fluid sample flows through the multivariate optical computing device;detecting an analyte in the sample based on an multivariate spectral response of the plurality of spectral responses; andclassifying the analyte based on the multivariate spectral response generated by the analyte.2. The method as in claim 1 , wherein the analyte comprises a phytoplankton.3. The method as in claim 1 , wherein continuously measuring the series of multivariate spectral responses as the fluid sample flows through the multivariate optical computing device comprises:continuously recording the series of multivariate spectral responses as the fluid sample flows through the multivariate optical computing ...

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Номер записи: 96
27-06-2013 дата публикации

Sample gas analyzing device and computer program for the same

Номер: US20130166225A1
Автор: Shigeru Nakatani, Takahiro ITAYA
Принадлежит: Horiba Ltd

The present invention is intended to make reduction of interference influence and reduction of a measurement error compatible in a quantitative analysis of one or more measurement target components and to provide a analyzing device ( 100 ) that quantitatively analyzes one or more measurement target components in a sample using a spectral spectrum obtained by irradiating light to the sample, wherein the analyzing device is adapted to switch the library data between a first generation condition in a period of a predetermined time lapse after starting the sample gas generation and a second generation condition after the predetermined time lapse, wherein under the first generation condition, a plurality of measurement target components are quantitatively analyzed using the first library data obtained by compensating interference influence of measurement extra-target components; and under the second generation condition, the quantitative analysis of a plurality of measurement target components is performed using second library data obtained without compensating interference influence of the measurement extra-target components.

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Номер записи: 97
04-07-2013 дата публикации

Versatile surface plasmon resonance analyzer with an integral surface plasmon resonance enhanced fluorescence mode

Номер: US20130169954A1
Автор: Ernest F. Guignon, George N. Gibson, Michael T. Reilly
Принадлежит: Ciencia Inc

An instrument for measuring and analyzing surface plasmon resonance on a sensor surface has a polarized light source optically connected to the sensor surface by a plurality of optical elements, including in one embodiment an optical telescope that transfers light from a rotatable reflecting surface to the sensor surface. Selective positioning of a cylindrical lens into a first position within the path of light transforms collimated light to a rectangular wedge that is incident upon the sensor surface at numerous angles. In another embodiment, the light source is operated as a laser to excite fluorescence on the sensor surface and the fluorescence is selectively directed to a detector by appropriate optical elements positioned in specific configurations.

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Номер записи: 98
04-07-2013 дата публикации

ZERO ORDER SENSING TO INCREASE LIGHT COLLECTION IN A SPECTROMETER

Номер: US20130169959A1
Автор: Guenther Brett
Принадлежит:

A system for increasing light collection in a spectrometer includes a detector and a processor. The detector detects zero order diffraction light from a diffractive element of a spectrometer and measures an intensity of the zero order diffraction light. A processor continuously receives the intensity measurement from the detector and automatically adjusts a parameter of the spectrometer until a maximum intensity measurement is received from the detector. A parameter of the spectrometer can include an optical path between an aperture of the spectrometer and a sample, an exposure time of the spectrometer, or an intensity of a light source for the spectrometer. The optical path between an aperture of the spectrometer and a sample can be adjusted by moving an objective lens of the spectrometer with respect to the sample or moving the sample with respect to the spectrometer. 1. A system for increasing light collection in a spectrometer , comprising:a detector that detects zero order diffraction light from a diffractive element of a spectrometer and measures an intensity of the zero order diffraction light; anda processor in communication with the detector and the spectrometer that continuously receives the intensity measurement from the detector and automatically adjusts a parameter of the spectrometer until a maximum intensity measurement is received from the detector.2. The system of claim 1 , wherein the parameter of the spectrometer comprises an optical path between an aperture of the spectrometer and a sample.3. The system of claim 2 , wherein the processor adjusts the optical path between an aperture of the spectrometer and the sample by moving an objective lens of the spectrometer with respect to the sample.4. The system of claim 2 , wherein the processor adjusts the optical path between an aperture of the spectrometer and the sample by moving the sample with respect to the spectrometer.5. The system of claim 1 , wherein the parameter of the spectrometer comprises ...

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Номер записи: 99
04-07-2013 дата публикации

Surface Enhanced Raman Spectroscopy on Optical Resonator (e.g., Photonic Crystal) Surfaces

Номер: US20130169960A1
Автор: Cunningham Brian T.
Принадлежит: The Board of Trustees of the University of Illinois

Highly sensitive Surface Enhanced Raman Spectroscopy (SERS) sensors are described in the form of a optical resonator and a metal nanostructure deposited on surface of the optical resonator. In one embodiment the optical resonator is in the form of a photonic crystal, but other optical resonators are contemplated. Examples are described in which the resonant near-fields of a large-area replica molded photonic crystal efficiently couples light from a laser to dielectric-metal “post-cap” nanostructures deposited on the photonic crystal surface by a glancing angle evaporation technique, achieving a high SERS enhancement factor. Other constructions are also contemplated a metal nanostructure formed on a dielectric support deposited on the photonic crystal, including a metallic film deposited over close-packed surface of nanospheres, arrays of metallic nanotriangles, metallic nanorods, metallic nanohelices, arrays of metallic nanospheres, and roughened metal surfaces. 117-. (canceled)18. A surface enhanced Raman spectroscopy (SERS) sensor comprising:a photonic crystal comprising a periodic grating structure, a first relatively thick dielectric layer deposited on the periodic grating structure; and a relatively high index of refraction layer deposited on the first relatively thick dielectric layer;a dielectric post layer deposited on the high index of refraction layer; anda metal layer deposited on the dielectric post layer;wherein an enhanced resonant electric field produced by the photonic crystal in response to in-coupled incident radiation is coupled to the metal layer, thereby increasing the sensitivity of the sensor to surface enhanced Raman spectroscopy signals of a molecule deposited on the sensor.19. The sensor of claim 18 , wherein the thickness of the metal layer is thinner than the thickness of the dielectric post layer.20. The sensor of claim 18 , wherein the SERS sensor is incorporated into a liquid media handling device selected from the group of liquid ...

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Номер записи: 100