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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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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 12918. Отображено 100.
12-09-2019 дата публикации

Импульсное приемное устройство

Номер: RU0000192302U1
Автор: Александр Ефремович Сафутин, Валерий Григорьевич Вильнер, Евгений Викторович Кузнецов, Михаил Михайлович Землянов, Надежда Валентиновна Седова
Принадлежит: Акционерное общество "Научно-исследовательский институт "Полюс" им. М.Ф. Стельмаха"

Полезная модель относится к технике обнаружения сигналов при воздействии помех, например, в лазерной дальнометрии или в системах охранной сигнализации. Импульсное приемное устройство содержит приемник с таймером, задающим пределы рабочего времени приема. Кроме того введены коммутатор режима времени, снабженный счетчиком времени, и счетчик недостоверных измерений, связанный с выходом приемника, а также введено решающее устройство, включенное на выходе счетчика недостоверных измерений. Счетчик недостоверных измерений может включать селектор пропусков и селектор ложных тревог, включенные на выходе приемника, при этом на входе селектора пропусков введен задатчик правильных результатов. Технический результат заключается в сокращении времени испытаний при обеспечении минимального разброса результатов и без ущерба для ресурса изделия. 1 з.п. ф-лы. 2 ил. РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 192 302 U1 (51) МПК G01C 3/00 (2006.01) G06F 17/18 (2006.01) G01J 1/44 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ПОЛЕЗНОЙ МОДЕЛИ К ПАТЕНТУ (52) СПК G01J 1/44 (2019.05); G01C 3/00 (2019.05); G01S 17/02 (2019.05); G06F 17/18 (2019.05) (21)(22) Заявка: 2019121405, 09.07.2019 (24) Дата начала отсчета срока действия патента: Дата регистрации: 12.09.2019 (45) Опубликовано: 12.09.2019 Бюл. № 26 1 9 2 3 0 2 R U (54) Импульсное приемное устройство (57) Реферат: Полезная модель относится к технике обнаружения сигналов при воздействии помех, например, в лазерной дальнометрии или в системах охранной сигнализации. Импульсное приемное устройство содержит приемник с таймером, задающим пределы рабочего времени приема. Кроме того введены коммутатор режима времени, снабженный счетчиком времени, и счетчик недостоверных измерений, связанный с выходом приемника, а также введено решающее устройство, включенное на выходе счетчика Стр.: 1 (56) Список документов, цитированных в отчете о поиске: RU 2655006 C1, 23.05.2018. RU 2288454 C2, 27.11.2006. RU 165106 U1, 10.10.2016. US ...

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Номер записи: 1
11-03-2020 дата публикации

Детектор одиночных фотонов

Номер: RU0000196655U1
Автор: Антон Вадимович Лосев, Владимир Владимирович Заводиленко, Владимир Леонидович Курочкин, Юрий Владимирович Курочкин
Принадлежит: ОБЩЕСТВО С ОГРАНИЧЕННОЙ ОТВЕТСТВЕННОСТЬЮ "КуРэйт" (ООО "КуРэйт")

Полезная модель относится к области измерительной техники и касается детектора одиночных фотонов. Детектор включает в себя корпус, в котором установлены сигнальная плата, плата контроллера, охлаждающий контур и лавинный фотодиод, расположенный на гибкой плате. Плата контроллера содержит генератор стробов, формирователь выходного импульса, источник напряжения смещения лавинного фотодиода и формирователь мертвого времени. Плата контроллера содержит регулятор температуры и систему управления. Охлаждающий контур содержит датчик температуры и термоэлектрический преобразователь. Гибкая плата расположена внутри охлаждающего контура и содержит по меньшей мере один каскад усиления сигналов лавинного фотодиода. Технический результат заключается в снижении вероятности шумового срабатывания и повышение квантовой эффективности устройства. 4 з.п. ф-лы, 1 ил., 1 табл. РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 196 655 U1 (51) МПК G01J 1/42 (2006.01) G01J 11/00 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ПОЛЕЗНОЙ МОДЕЛИ К ПАТЕНТУ (52) СПК G01J 1/42 (2020.01); G01J 11/00 (2020.01) (21)(22) Заявка: 2019140901, 11.12.2019 (24) Дата начала отсчета срока действия патента: Дата регистрации: 11.03.2020 (45) Опубликовано: 11.03.2020 Бюл. № 8 U 1 1 9 6 6 5 5 R U (54) ДЕТЕКТОР ОДИНОЧНЫХ ФОТОНОВ (57) Реферат: Полезная модель относится к области измерительной техники и касается детектора одиночных фотонов. Детектор включает в себя корпус, в котором установлены сигнальная плата, плата контроллера, охлаждающий контур и лавинный фотодиод, расположенный на гибкой плате. Плата контроллера содержит генератор стробов, формирователь выходного импульса, источник напряжения смещения лавинного фотодиода и формирователь мертвого времени. Плата контроллера содержит регулятор Стр.: 1 температуры и систему управления. Охлаждающий контур содержит датчик температуры и термоэлектрический преобразователь. Гибкая плата расположена внутри охлаждающего контура и содержит по меньшей мере ...

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Номер записи: 2
26-01-2012 дата публикации

Signal processing device and photodetection device

Номер: US20120018621A1
Автор: Hiroo Yamamoto, Makoto Kobayashi, Seiichiro Mizuno
Принадлежит: Hamamatsu Photonics KK

In a signal processing device of an embodiment, an integration circuit accumulates a charge from a photodiode in an integrating capacitor element, and outputs a voltage value according to the amount of charge. A comparator circuit, when the voltage value from the integration circuit has reached a reference value, outputs a saturation signal. A charge injection circuit, in response to the saturation signal, injects an opposite polarity of charge into the integrating capacitor element. A counter circuit performs counting based on the saturation signal. A holding circuit holds the voltage value from the integration circuit. An amplifier circuit outputs a voltage value that is K times (where K>1) larger than the voltage value held by the holding circuit. An A/D converter circuit sets a voltage value that is K times larger than the reference value as the maximum input voltage value, that is, a full-scale value, and outputs a digital value corresponding to the voltage value from the amplifier circuit.

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Номер записи: 3
26-01-2012 дата публикации

Array configuration and readout scheme

Номер: US20120022795A1
Автор: Jeremy JORDAN, Kim Johnson, Mark Milgrew, Peter Levine
Принадлежит: Life Technologies Corp

The described embodiments may provide a chemical detection circuit that may comprise a plurality of first output circuits at a first side and a plurality of second output circuits at a second side of the chemical detection circuit. The chemical detection circuit may further comprise a plurality of tiles of pixels each placed between respective pairs of first and second output circuits. Each tile may include four quadrants of pixels. Each quadrant may have columns with designated first columns interleaved with second columns. Each first column may be coupled to a respective first output circuit in first and second quadrants, and to a respective second output circuit in third and fourth quadrants. Each second column may be coupled to a respective second output circuit in first and second quadrants, and to a respective first output circuit in third and fourth quadrants.

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Номер записи: 4
08-03-2012 дата публикации

High-speed analog photon counter and method

Номер: US20120057152A1
Автор: Mohamed Jamal Deen, Munir Eldesouki, Qiyin Fang
Принадлежит: King Abdulaziz City for Science and Technology KACST

A high speed analog photon counter and method is provided. In one aspect, the method includes delivering an electric charge to a circuit of the high speed analog photon counter through a current source of the circuit. The method also includes accumulating the electric charge in a capacitor of the circuit electrically coupled to the current source. The method further includes comparing the electric charge accumulated in the capacitor of the circuit with a reference voltage through a comparator of the circuit electrically coupled to an output of the capacitor. The output of the capacitor of the circuit is coupled to an input of the comparator of the circuit, and the reference voltage is coupled to another input of the comparator of the circuit. The method furthermore includes resetting the capacitor of the circuit when the electric charge accumulated in the capacitor of the circuit matches the reference voltage.

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Номер записи: 5
12-04-2012 дата публикации

Single photon detector and photon number resolving detector

Номер: US20120085891A1
Автор: Seok-Beom Cho, Tae-gon Noh
Принадлежит: Electronics and Telecommunications Research Institute ETRI

Provided is a single photon detector and a photon number detector which use an APD and include an auxiliary signal generator, a light receiving element, a mixer, and a determiner The auxiliary signal generator generates an auxiliary signal. The light receiving element receives a photon to output an electric signal. The mixer receives and mixes an output signal of the light receiving element and the auxiliary signal. The determiner determines whether the photon is received or the number of received photons. The single photon detector and photon number resolving detector detect an avalanche of an amplitude less than the amplitude of a capacitive response. A probability that an after pulse is generated can be reduced. A photon count rate is enhanced. The influence on the waveform of the gate signal can be decreased. The frequency of the gate signal can be continuously changed.

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Номер записи: 6
19-04-2012 дата публикации

Imaging systems and methods including pixel arrays with reduced numbers of metal lines and control signals

Номер: US20120091317A1
Автор: Gennadiy Agranov, John Ladd, Xiangli Li
Принадлежит: Aptina Imaging Corp

This is generally directed to systems and methods for reduced metal lines and control signals in an imaging system. For example, in some embodiments a pixel cell of an imaging system can operate without a row select transistor, and therefore can operate without a row select metal control line. As another example, in some embodiments a pixel cell can share its reset transistor control line with a transfer transistor control line of another pixel cell. In this manner, an imaging system can be created that averages a single metal line per pixel cell. In some embodiments, operation of such reduced-metal line imaging systems can use modified timing schemes of control signals.

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Номер записи: 7
10-05-2012 дата публикации

Sensor circuit and display apparatus

Номер: US20120113060A1
Автор: Christopher Brown, Hiromi Katoh, Kohei Tanaka
Принадлежит: Sharp Corp

A sensor circuit or a display apparatus from which a highly accurate sensor output can be obtained includes a photodiode (photodetecting element); a capacitor connected to the photodiode via an accumulation node; a reset signal line to which a reset signal is supplied; a readout signal line to which a readout signal is supplied; a thin-film transistor (sensor switching element) that makes the accumulation node and an output line conductive with respect to each other and outputs an output signal according to the potential of the accumulation node; a microswitch that is capable of switching connection and disconnection between the accumulation node and an input electrode and provides connection when a pressure is applied by a touching operation; and a thin-film (control switching element) for switching conduction and non-conduction between the microswitch and the accumulation node.

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Номер записи: 8
07-06-2012 дата публикации

Dose responsive uv indicator

Номер: US20120137958A1
Автор: Andrew Mills, Kate Mcdiarmid, Michael Mcfarlane, Pauline Grosshans
Принадлежит: Individual

A UV radiation (UVR) response indicator comprises a first UVB and/or UVA radiation sensitive material which has been modified so as to display an altered characteristic in a delayed manner in response to UVB and/or UVA radiation exposure. The UV indicator is capable of displaying exposure to increased UV radiation over a period of time. The present invention also relates to a method of displaying a relative amount of exposure to UVR by a UV indicator over a period of time. The invention is particularly useful in detecting the level of exposure to sunlight or sunbed radiation.

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Номер записи: 9
07-06-2012 дата публикации

Current sensing circuit

Номер: US20120139887A1
Автор: Chen-Ming Hsu
Принадлежит: Himax Technologies Ltd

A current sensing circuit includes a current sensing unit, a feedback control unit and a digital output unit. The current sensing unit senses a current and produces a pulse signal according to at least one reference signal and at least one feedback signal. The current sensing unit includes a first capacitor set and a second capacitor set. The current sensing unit selects at least one capacitor in the first capacitor set and at least one capacitor in the second capacitor set according to the current value so as to adjust the precision of the current sensing circuit. The feedback control unit is coupled to the current sensing unit and produces the feedback signals according to a clock signal and the pulse signal. The digital output unit is coupled to the current sensing unit and outputs a digital signal according to the pulse signal.

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Номер записи: 10
14-06-2012 дата публикации

Photoelectric Conversion Device And Electronic Device Provided With The Photoelectric Conversion Device

Номер: US20120145887A1
Автор: Atsushi Hirose, Makoto Yanagisawa
Принадлежит: Semiconductor Energy Laboratory Co Ltd

An output terminal of a photoelectric conversion element included in the photoelectric conversion device is connected to a drain terminal and a gate terminal of a MOS transistor which is diode-connected, and a voltage V out generated at the gate terminal of the MOS transistor is detected in accordance with a current I p which is generated at the photoelectric conversion element. The voltage V out generated at the gate terminal of the MOS transistor can be directly detected, so that the range of output can be widened than a method in which an output voltage is converted into a current by connecting a load resistor, and so on.

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Номер записи: 11
28-06-2012 дата публикации

Detection device, sensor device, and electronic apparatus

Номер: US20120161002A1
Автор: Kei Yoshizaki
Принадлежит: Seiko Epson Corp

A detection device includes a plurality of pyroelectric elements, detection circuit and a poling circuit. The pyroelectric elements include a first pyroelectric element through an n-th pyroelectric element serially provided between a detection node and a first power supply node with n being an integer equal to or greater than 2. The detection circuit is connected to the detection node. The poling circuit is configured to perform a poling process, in which a direction of polarization of at least one of the first pyroelectric element through the nth pyroelectric element is set independently of a direction of polarization of another one of the first pyroelectric element through the n-th pyroelectric element.

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Номер записи: 12
05-07-2012 дата публикации

Two-Transistor Pixel Array

Номер: US20120168784A1
Автор: Keith FIFE, Kim Johnson, Mark Milgrew
Принадлежит: Life Technologies Corp

A two-transistor (2T) pixel comprises a chemically-sensitive transistor (ChemFET) and a selection device which is a non-chemically sensitive transistor. A plurality of the 2T pixels may form an array, having a number of rows and a number of columns. The ChemFET can be configured in a source follower or common source readout mode. Both the ChemFET and the non-chemically sensitive transistor can be NMOS or PMOS device.

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Номер записи: 13
05-07-2012 дата публикации

Optical sensor and display device

Номер: US20120169962A1
Автор: Hiroaki Shigeta, Hiromi Katoh, Naru Usukura, Ryuzo Yuki, Tadashi Nemoto, Yuichi Kanbayashi
Принадлежит: Sharp Corp

In a liquid crystal display device, noise light to a photodetecting element is reduced, whereby an improved S/N ratio is achieved. The liquid crystal display device includes: a first substrate ( 100 ) on which a pixel circuit is provided; a second substrate ( 101 ) arranged so as to face the first substrate ( 100 ) with a liquid crystal layer ( 30 ) being interposed therebetween; a photodetecting element ( 17 ) provided on the first substrate ( 100 ); and a detection light filter ( 18 ) that is provided between the photodetecting element ( 17 ) and the liquid crystal layer ( 30 ) and that cuts off light in a band outside a signal light band that is a band of light to be detected by the photodetecting element ( 17 ).

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Номер записи: 14
19-07-2012 дата публикации

Methods and Apparatus for Estimating Light Adaptation Levels of Persons Viewing Displays

Номер: US20120182278A1
Автор: Anders Ballestad
Принадлежит: Dolby Laboratories Licensing Corp

Methods and apparatus for estimating adaptation of the human visual system take into account the distribution of light detectors (rods and cones) in the human eye to weight contributions to adaptation from displayed content and ambient lighting. The estimated adaptation may be applied to control factors such as contrast and saturation of displayed content.

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Номер записи: 15
09-08-2012 дата публикации

Photodetection device and optical filter used therein

Номер: US20120199826A1
Автор: Ken Nakahara, Koki Sakamoto, Shunsuke Akasaka, Shunsuke FURUSE, Soichiro Arimura, Tetsuo Fujii
Принадлежит: ROHM CO LTD

Two light receiving elements are formed on a support substrate. A first light receiving element is formed of a p-type layer, an n-type layer, a light absorption semiconductor layer, an anode electrode, a cathode electrode, a protection film, etc. A second light receiving element is formed of a p-type layer, an n-type layer, a transmissive film, an anode electrode, a cathode electrode, a protection film, etc. The light absorption semiconductor layer absorbs light in a wavelength range λ and disposed closer to the light receiving surface than is the pn junction region. The transmissive film has no light absorption range and disposed closer to the light receiving surface than is the pn junction region. The amount of light in the wavelength range λ is measured through computation using a detection signal from the first light receiving element and a detection signal from the second light receiving element.

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Номер записи: 16
13-09-2012 дата публикации

Array Column Integrator

Номер: US20120228136A1
Автор: Peter Levine
Принадлежит: Life Technologies Corp

Circuits are described for reading a chemically-sensitive field-effect transistor (chemFET) with an improved signal-to-noise ratio. In one embodiment, a device is described that includes a chemFET including a first terminal and a second terminal, and a floating gate coupled to a passivation layer. An integrator circuit is coupled to the second source/drain terminal of the chemFET via a data line. The integrator circuit applies a bias voltage to the data line during a read interval, thereby inducing a current through the chemFET based on a threshold voltage of the chemFET. The integrator circuit then generates an output signal proportional to an integral of the induced current through the chemFET during the read interval.

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Номер записи: 17
25-10-2012 дата публикации

Electronic device for baselining the current emitted by electromagnetic radiation detectors

Номер: US20120267531A1
Автор: Gilles Chammings
Принадлежит: Commissariat a lEnergie Atomique et aux Energies Alternatives CEA

A microelectronic device for electromagnetic radiation measurement including a bolometer and an integrator including an integration capacitor, to output, during an integration time, a first signal with variable amplitude and frequency according to the current emitted by the detector, in a form of a series of pulses, and a controller controlling the first signal, to deliver a second signal. The controller includes: a counting device to count each pulse of the first signal detected during an integration time and to indicate an end of counting when a predetermined number N of pulses is reached, and when the end-of-integration time is reached and a predetermined number N of pulses has been counted or deducted by the counter, to emit a second amplitude signal, depending on or equal to the amplitude of the first signal.

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Номер записи: 18
15-11-2012 дата публикации

Methods, systems, and apparatus for detecting light and acoustic waves

Номер: US20120286795A1
Автор: Chun Zhan, Glenn Alan Forman, Juntao Wu, Lubomir Hristov Sevov, Maxine Marie Gibeau, Michael Shane Pilon, Zhihong Roy Mao
Принадлежит: Individual

A sensor includes a sensor head including an acoustic detector configured to receive light from a first light source and to reflect the light upon incidence of acoustic waves. The sensor also includes at least one optical fiber and at least one fluorescent material within at least one of the sensor head and the at least one optical fiber. The at least one fluorescent material is configured to receive light from a second light source external to the sensor and emit visible light in response to the light received from the second light source.

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Номер записи: 19
13-12-2012 дата публикации

Light-receiving device, light receiver using same, and method of fabricating light-receiving device

Номер: US20120313210A1
Автор: Tetsuya Miyatake
Принадлежит: Fujitsu Ltd

An apparatus includes a flip-chip semiconductor substrate, a light detection element configured to be formed over the flip-chip semiconductor substrate and to have a laminate structure including a first semiconductor layer of a first-conductive-type, a light-absorption layer formed over the first semiconductor layer, and a second semiconductor layer of a second-conductive-type formed over the light-absorption layer, an inductor configured to be connected to the light detection element over the flip-chip semiconductor substrate, an output electrode for bump connection configured to output a current generated by the light detection element through the inductor, a bias electrode for bump connection configured to apply a bias voltage to the light detection element through a bias electrode, and a line configured to cause a metal line of the inductor and the light detection element to be connected to the output electrode or the bias electrode.

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Номер записи: 20
10-01-2013 дата публикации

Processing method and apparatus for energy saving of an active infrared induction instrument powered by a dry battery

Номер: US20130009061A1
Автор: Chen Weigen
Принадлежит: Shanghai Kohler Electronics Ltd

An active infrared induction instrument powered by a dry battery capable of reducing power consumption through the adjustment of the emitter pulse width. The infrared emitted LED emits infrared signals, which, after being reflected by an object, are received by the infrared photodiode. The infrared signals received the infrared signals received by the infrared photodiode then enter an integrated circuit chip through a comparator. The pulse widths of the infrared emission pulse signals are dynamically adjusted after the width of the pulse series is received by the discrimination chip, thus reducing the emission power consumption to save energy.

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Номер записи: 21
24-01-2013 дата публикации

Ultraviolet radiation measurement sensor

Номер: US20130020477A1
Автор: Julia Castellan, Philippe Boivin
Принадлежит: STMICROELECTRONICS ROUSSET SAS

A method for measuring radiation of energy photons, such as ultraviolet radiation, on a surface, may include programming at least one transistor by at least transmitting an electric charge to it. The method may further include measuring an electrical quantity of the at least one transistor receiving radiation of energy photons and estimating, based on this electrical quantity, an amount of radiation received.

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Номер записи: 22
07-02-2013 дата публикации

Image sensor

Номер: US20130032691A1
Автор: Kwang Jun Cho
Принадлежит: Hynix Semiconductor Inc

An image sensor for reducing a sampling time by shortening a stabilization duration is provided. The image sensor includes a pixel unit, a sampling unit sampling a signal from an output node of the pixel unit, a sinking unit sinking current from the output node of the pixel unit, and a current controller controlling the amount of current in the sinking unit.

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Номер записи: 23
07-03-2013 дата публикации

Signs-of-deterioration detector for semiconductor laser

Номер: US20130056621A1
Автор: Takako Suga, Takeshi Uchida
Принадлежит: Canon Inc

A signs-of-deterioration detector for a semiconductor laser includes a first light receiving section that acquires first information relating to an optical output of the semiconductor laser and a second light receiving section that acquires second information relating to an intensity distribution of the emission pattern below the lasing threshold of the semiconductor laser. The detector also includes a holding section that holds the first information and the second information at a predetermined time point T 1 . The detector further includes a deciding section that decides the presence or absence of signs of rapid decrease of the optical output of the semiconductor laser by comparing the first information and the second information at at least one time point Tn (T 1 <Tn), with those at the time point T 1.

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Номер записи: 24
14-03-2013 дата публикации

Semiconductor device

Номер: US20130063633A1
Автор: Hidetoshi Hayashi, Takuro Yamamoto, Tatsuhiko Yamazaki
Принадлежит: Canon Inc

A semiconductor device includes a pair of sensor units each of which includes a photoelectric conversion unit, a signal holding unit and a transfer unit, and outputs a signal held by the signal holding unit, comprising a control unit including a detector unit, wherein when one of the pair of sensor units operates in a first mode, the other operates in a second mode, the detector unit detects that the output has reached a predetermined value after the one starting a signal transfer, the one ends the signal transfer in response to the detection and determines the held signal, the control unit generates a control signal after that, and the other in the second mode accumulates generated charges and starts a signal transfer in accordance with the control signal, then ends the signal transfer and determines the held signal.

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Номер записи: 25
21-03-2013 дата публикации

Optical sensor and electronics device

Номер: US20130068926A1
Автор: Norikazu Okada
Принадлежит: Individual

When no light enters a photodiode, a second current mirror circuit operates. Consequently, a current that decreases a potential difference between two terminals of a light-receiving element flows into a transistor of the second current mirror circuit and an output of an optical sensor becomes low. Meanwhile, when light enters the photodiode, a transistor of the light-receiving element is turned on and the second current mirror circuit stops operating. Consequently, the current that decreases the potential difference between the two terminals of the light-receiving element is stopped in the transistor of the second current mirror circuit and the output of the optical sensor becomes high. This makes it possible to provide an optical sensor that has a circuit in which an output of a light-receiving element does not depend on a photocurrent and that is capable of operating at a high speed.

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Номер записи: 26
28-03-2013 дата публикации

METHOD AND APPARATUS FOR PROBING AN OBJECT, MEDIUM OR OPTICAL PATH USING NOISY LIGHT

Номер: US20130076861A1
Автор: STERNKLAR Shmuel
Принадлежит:

A method and apparatus for optically probing an object(s) and/or a medium and/or an optical path using noisy light. Applications disclosed include but are not limited to 3D digital camera, detecting material or mechanical properties of optical fiber(s), intrusion detection, and determining an impulse response. In some embodiments, an optical detector is illuminated by a superimposition of a combination of noisy light signals. Various signal processing techniques are also disclosed herein. 1) A method of optically probing an object(s) and/or a medium and/or an optical path including the object(s) or medium , the method comprising:a) illuminating the object(s) or the medium to induce, from the object(s) or medium, one or more noisy light response signals that are randomly or pseudo-randomly modulated;b) receiving into an optical detector an optical superimposition of (i) a source light signal used in step (a) to carry out the illuminating and (ii) one or more of the induced noisy light response signals, thereby illuminating the optical detector so as to generate a combination electrical signal describing the optically superimposed plurality of received noisy light response signals; i) a relationship between power and frequency of the combination electrical signal or a derivative thereof over a discrete or continuous spectrum;', 'ii) a temporal autocorrelation function of the combination electrical signal;', 'iii) a distance parameter(s) involving one or more the objects;', 'iv) a mechanical stress or strain;', 'v) a change in a light propagation time of at least one optical path;', 'vi) a difference in light propagation times of multiple optical paths or a temporal change thereof;', 'vii) mechanical motion of an object; and', 'viii) a material or mechanical property of an optical fiber, at least a portion of which is included in the optical path of step (a)., 'c) determining or characterizing or detecting from the combination electrical signal, at least one of2. ( ...

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Номер записи: 27
11-04-2013 дата публикации

System and Method for Nonlinear Optical Devices

Номер: US20130087689A1
Автор: Agarwal Anjali, Peters Nicholas, Woodward Ted
Принадлежит: TELCORDIA TECHNOLOGIES, INC.

Systems for enhancing the sensitivity of detecting an optical signal using nonlinear optics and method of performing the same. In one embodiment, a single-photon detection system includes an optical amplifier realized in a waveguide, and a photodetector coupled to an output of the optical amplifier. A light detection and ranging system includes the optical amplifier coupled to an optical source and one photodetector. In another embodiment, a photodetection system includes a plurality of optical frequency converters, coupled to an optical source, that sequentially convert a wavelength of photons of the optical source to a final wavelength, and a single-photon photodetector coupled to the optical frequency converters to detect single photons produced by the optical source. In another embodiment, an optical sensor includes an optical pump, and a transducer including an optical ring cavity coupled to the optical pump and configured to utilize optical four-wave mixing to detect an external stimulus. 1. A photodetection system , comprising:a cascaded plurality of optical frequency converters coupled to an optical source, each of said plurality of optical frequency converters being configured to sequentially convert a wavelength of photons of said optical source to a final wavelength; anda single-photon photodetector coupled to said plurality of optical frequency converters to detect single photons produced by said optical source.2. The photodetection system as recited in wherein said plurality of cascaded optical frequency converters are configured to produce photons with wavelengths lying in a monotonic sequence from said wavelength of photons produced by said optical source to a wavelength of a final one of said plurality of optical frequency converters.3. The photodetection system as recited in wherein each of said plurality of optical frequency converters are configured to utilize an optical four-wave mixing process.4. The photodetection system as recited in wherein ...

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Номер записи: 28
11-04-2013 дата публикации

APPARATUS FOR CHECKING THE AUTHENTICITY OF VALUE DOCUMENTS

Номер: US20130088712A1
Автор: Holl Norbert, Stein Dieter, Su Shanchuan
Принадлежит:

Testing the authenticity of a valuable document, whereby at least one intensity distribution of electromagnetic radiation passing through the valuable document in the dark field is detected in a spatially resolved manner and a spatially resolved dark field characteristic is determined therefrom. The actual authenticity test is then performed by a procedure in which selected test partial regions of the valuable document are assigned respectively to one of a plurality of suspicion classes, an interconnection region is formed from substantially interconnected test partial regions that were assigned to at least one specific suspicion class, and the valuable document, depending on the form and/or position of the interconnection region, is assigned to one of at least two authenticity categories which is linked to the at least one specific suspicion class. 115.-. (canceled)16. A method for checking the authenticity of a value document , involving a capturing and evaluating electromagnetic radiation passing through the value document , comprising the steps:capturing in locally resolved fashion at least one intensity distribution of electromagnetic radiation in dark field and determining a locally resolved dark field characteristic from the at least one captured intensity distribution;assigning selected partial check regions of the value document to respectively one of several preset suspicion classes in dependence on a comparison of a characteristic intensity value of the dark field characteristic of the respective partial check region with at least one upper and lower threshold value;forming an interrelation region by aggregating substantially interrelated partial check regions which have been previously assigned to at least one certain suspicion class;assigning the value document to one of at least two preset authenticity categories linked with the at least one certain suspicion class, in dependence on a form and/or location of the interrelation region.17. The method ...

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Номер записи: 29
18-04-2013 дата публикации

OPTOELECTRONIC MEASURING SYSTEM WITH A COMPENSATION LIGHT SOURCE

Номер: US20130092815A1
Автор: Mayer Bernd, Spiegel Egbert
Принадлежит: MECHALESS SYSTEMS GMBH

An optoelectronic measuring system comprises at least two transmission light sources that emit time-sequentially clocked, phased light. A compensation light source is controlled independently of the transmission light sources. A receiver receives the light radiated by the transmission light sources, and the compensation light source converts them into an electrical received signal. At least two evaluation units evaluate the received signal and generate one control signal each. At least two transmission paths each comprise a transmission light source, an evaluation unit and a clock generator. The clock generator generates the clock for the transmission light sources and for the evaluation unit. The evaluation units each generate a control signal. A control unit generates a compensation control signal from the control signals, with which the compensation light source is controlled and supplied. The evaluation unit generates a clock-synchronous control signal for the transmission light source from the received signal. 2. The optoelectronic measuring arrangement according to claim 1 , characterized in that the evaluation unit of a transmission path generates a clock-synchronous control signal from the receiving signal to compensate the clock synchronous alternating light components in the receiving signal.3. The optoelectronic measuring arrangement according to claim 1 , characterized in that the control unit comprises an adder.4. The optoelectronic measuring arrangement according to claim 1 , characterized in that the compensation control signal contains the frequency components of the control signals of the at least two evaluation units.5. The optoelectronic measuring arrangement according to claim 1 , characterized in that the evaluation units control the associated transmission light sources in clock-synchronous manner.6. The optoelectronic measuring arrangement according to claim 1 , characterized in that the clock frequencies for controlling the transmission light ...

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Номер записи: 30
18-04-2013 дата публикации

Sensing/Emitting Apparatus, System and Method

Номер: US20130092852A1
Автор: Baumatz David
Принадлежит: ELTA SYSTEMS LTD.

A number of apparatuses are provided, for sensing and/or emitting energy along one or more desired apparatus line of sights (LOS) with respect to the respective apparatus. In an embodiment, an apparatus includes an assembly that is rotatably mounted on a base with respect to a switching axis. The assembly has two or more sensing/emitting units, each having a respective sensing/emitting unit line of sight (ULOS). Each sensing/emitting unit has an operative state, wherein the respective unit ULOS is pointed along a LOS of the apparatus for sensing and/or emitting energy along the LOS, and a corresponding inoperative state, where the respective unit ULOS is pointed along a direction different from this LOS. A switching mechanism enables switching between the sensing/emitting units to selectively bring a desired sensing/emitting unit exclusively into its respective operative state while concurrently bringing a remainder of the sensing/emitting units each to a respective non-operative state. 1. An apparatus for at least one of sensing and emitting energy along an apparatus line of sight (LOS) with respect to said apparatus , comprising:at least two sensing/emitting units, each said unit adapted for at least one of sensing and emitting energy along a respective unit line of sight (ULOS);each sensing/emitting unit having an operative state, wherein the respective ULOS is pointed along said LOS for at least one of sensing and emitting energy, and a corresponding inoperative state, where the ULOS is pointed along a direction different from said LOS;a switching mechanism for switching between said units to selectively bring a desired unit exclusively into its respective operative state while concurrently bringing a remainder of said units each to a respective non-operative state;wherein a first said sensing/emitting unit is configured for at least one of sensing and emitting energy when an operational parameter associated with operation of said device is greater than an ...

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Номер записи: 31
25-04-2013 дата публикации

METHOD AND DEVICE FOR DISTINGUISHING A SELF-LUMINOUS OBJECT FROM A REFLECTING OBJECT

Номер: US20130101161A1
Автор: FABER Petko
Принадлежит:

A method and device for distinguishing a self-luminous object from a reflecting object in a detection range of a camera of a vehicle having at least one headlight, when the object is illuminated by the headlight, are described. The method includes a step of receiving a relative position of the object with respect to the vehicle and a brightness value of the object from the camera. Furthermore, the method includes a step of comparing the brightness value to a self-luminous value expected at the relative position and a reflection value expected at the relative position. Moreover, the method includes a step of classifying the object as self-luminous, if the brightness value is within a self-luminous tolerance range about the self-luminous value or as reflecting, if the brightness value is within a reflection tolerance range about the reflection value. 1. A method for distinguishing a self-luminous object from a reflecting object in a detection range of a camera of a vehicle having at least one headlight , if the object is illuminated by the headlight , the method comprising:receiving a relative position of the object with respect to the vehicle and a brightness value of the object from the camera;comparing the brightness value to at least one of (i) a self-luminous value expected at the relative position and (ii) a reflection value expected at the relative position; andclassifying the object as one of (i) self-luminous, if the brightness value is within a self-luminous tolerance range about the self-luminous value and (ii) reflecting, if the brightness value is within a reflection tolerance range about the reflection value.2. The method according to claim 1 , further comprising:ascertaining at least one of (i) a function of self-luminosity values to be expected at different relative positions in front of the vehicle and (ii) a function of reflection values to be expected at different relative positions in front of the vehicle.3. The method according to claim 1 , ...

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Номер записи: 32
02-05-2013 дата публикации

PULSED LASER SIGNAL DISRUPTING DEVICE INCORPORATING LED ILLUMINATOR

Номер: US20130105670A1
Автор: Borosak Marko
Принадлежит:

The invention discloses a pulsed-laser signal disrupting device incorporating a high intensity LED illuminator including a pulsed-laser detector, pulsed-laser beam emitting source, high intensity and efficiency LED illuminator, microcontroller and a user interface. A microcontroller algorithm detects a foreign pulsed-laser signal and performs disruption with automatic camouflaging of the disruption signal source. 19-. (canceled)10. A pulsed-laser signal disrupting device incorporating a LED illuminator comprising:a pulsed-laser beam detector;a pulsed-laser beam transmitter;an LED illuminator;a microcontroller with program storage means, anduser interface means,wherein the microcontroller program logic records any foreign pulsed-laser signal pattern received via pulsed-laser beam detector, compares the recorded pattern with a pre-stored database of malicious signals, and if detected as malicious—informs a user via the user interface means and automatically initiates transmission of disrupting signals via the pulsed-laser beam transmitter that match in frequency with the foreign signal received, andwherein, the LED illuminator is automatically activated at that time to disguise the signal disrupting source.11. The device of wherein said LED illuminator comprises visible light LEDs claim 10 , infrared light LEDs or their combination. Invention relates to pulsed laser signal disrupting device incorporating LED illuminator, where the pulsed laser signal source that is being disrupted is a video LIDAR device, a device that is a combination of a previous LIDAR device and a video camera which records the view area of a LIDAR device and the target within it.The present invention relates to pulsed laser signal disrupting device incorporating LED illuminator.The preferred embodiment describes an optical pulsed-laser detector wherein the optical signal is converted to an electrical signal, a pulsed-laser beam emitting source preferably a semiconductor laser diode wherein the ...

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Номер записи: 33
09-05-2013 дата публикации

Flexible Readout and Signal Processing in a Computational Sensor Array

Номер: US20130112848A1
Автор: Andreou Andreas G., Lin Joseph H., Pouliquen Philippe O., Rizk Charbel G.
Принадлежит: THE JOHNS HOPKINS UNIVERSITY

A computational sensing array includes an array of sensing elements. In each sensing element, a first signal is generated from a transducer. A second signal is produced by a collection unit in response to receiving the first signal. The second signal may be modified, in a conditioning unit. A sensing element preprocessing unit generates a word representing the value of the modified second signal, and may produce an indication of change of the first signal. A current value of the word may be stored in a state holding element local to the sensing element, and a previous value of the word may be retained in a further state holding element local to the sensing element. 1. A computational sensing array electronic circuit comprising: a transducer configured to produce a first signal in response to an environmental condition;', 'a collection unit coupled to the transducer and configured to produce a second signal derived from the first signal and representing the environmental condition;', 'a conditioning unit coupled to the collection unit and configured to modify the second signal; and', 'a sensing element preprocessing unit coupled to the conditioning unit and configured to produce a value of the second signal as modified and to produce an indication of change of the first signal., 'an array of sensing elements, each sensing element including2. The computational sensing array electronic circuit of claim 1 , wherein:the sensing element preprocessing unit includes a first state holding element configured to store a current value of the second signal as modified, as a first state holding element value;the sensing element preprocessing unit includes a second state holding element configured to store a prior value of the second signal as modified, as a second state holding element value; andthe indication of change of the first signal includes the first state holding element value and the second state holding element value as stored.3. The computational sensing array ...

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Номер записи: 34
09-05-2013 дата публикации

Plant observation device and method

Номер: US20130113924A1
Автор: Ae Kyeung Moon, Kyuhyung KIM
Принадлежит: Electronics and Telecommunications Research Institute ETRI

A plant observation device measures the growing state of a plant placed in a measurement area and the growth environment in the measurement area while moving within the measurement area where the plant is cultivated. The quantity of light is measured during growth environment measurement, and a light transmitting state of the measurement area is detected based on the measured quantity of light and the time of light quantity measurement. The measured growing state information and growth environment information are transmitted, together with positional information, to a server of a remote monitoring system. The growth environment in the measurement area is then optimally controlled based on the growing state information and the growth environment information.

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Номер записи: 35
09-05-2013 дата публикации

Light Quantity Detection Method and Device Therefor

Номер: US20130114073A1
Автор: Namba Akihiro, ONISHI Fujio, Terui Yasushi
Принадлежит: HITACHI HIGH-TECHNOLOGIES CORPORATION

To enable measurement over a wide dynamic range from weak light quantity to strong light quantity in a light quantity detection device for detecting the light quantity, a detection signal from a photon counting light detector is A/D converted. When the A/D converted detection signal has a preset threshold value or more, the detection signal is transmitted as it is to a number-of-photons calculation circuit in a subsequent stage, and when the detection signal has the threshold value or less, threshold value processing for transmitting a preset reference value to the subsequent stage is performed. In the number-of-photons calculation circuit, the number of photons or the light quantity incident on the photon counting light detector is acquired from the dimension of an acquired detection signal waveform until the light quantity measurement ends. 1. A light quantity detection device , comprising:a light detector which detects light;an amplifier which amplifies a detection signal from the light detection means;an A/D convertor which A/D converts the detection signal amplified by the amplifier;a threshold value processing circuit unit which carries out threshold processing to the detection signal A/D converted by the A/D convertor by using a threshold value; anda number-of-photons calculation circuit unit which calculates the intensity of light or the number of photons incident on the light detector from the detection signal which is threshold processed by the threshold value processing circuit unit,wherein the number-of-photons calculation circuit unit calculates the intensity of light or the number of photons incident on the light detector based on a dimension of a signal waveform of the detection signal threshold processed by the threshold value processing circuit unit.2. The light quantity detection device according to claim 1 , wherein the number-of-photons calculation circuit unit calculates the intensity of light or the number of photons incident on the light ...

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Номер записи: 36
23-05-2013 дата публикации

OPTICAL SENSOR DEVICE

Номер: US20130126702A1
Автор: FUJITA Hiroyuki, HAYASHI Keiichiro, KAMAMORI Hitoshi, OKU Sadao, TSUKAGOSHI Koji
Принадлежит: SEIKO INSTRUMENTS INC.

An optical sensor element is mounted in a package which includes a glass lid substrate () having a filter function and a class substrate having a cavity. The glass substrate () having a cavity includes therein a through-electrode () in which metal is filled, and has wiring patterns () provided by metalization on a front surface and a rear surface, respectively, thereof. The wiring pattern () and a wiring pattern ( provided by retail nation on the glass lid substrate () are fixed and connected to each other with an adhesive having conductive particles () added thereto. The wiring patterns () provided by metalization on the front surface and the rear surface, respectively, of the substrate () having a cavity and the metal filled in the through-electrode are structurally and electrically integrated wish each other. 1. An optical censor device , comprising:a glass lid substrate;an optical sensor element electrically connected to a wiring pattern provided by metalization on the glass lid substrate; anda glass substrate with a cavity bonded to the glass lid substrate, wherein:the glass substrate with a cavity includes therein a through-electrode in which metal is filled;the glass substrate with a cavity includes wiring patterns provided by metalization on a side of a surface having the cavity and on an opposite surface side, respectively;the wiring patterns and the metal filled in the through-electrode are structurally integral with each other;the wiring pattern on the glass lid substrate and the wiring pattern on the side of the surface having the cavity on the glass substrate with a cavity are electrically connected to each other with an adhesive having conductive particles added thereto; andthe glass lid substrate and the glass substrate with a cavity are fixed and bonded together.2. An optical sensor device according to claim 1 , wherein the glass lid substrate comprises a substrate made of glass having a filter function.3. An optical sensor device according to claim ...

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Номер записи: 37
23-05-2013 дата публикации

TRANSMISSIVE-REFLECTIVE PHOTOCATHODE

Номер: US20130126705A1
Автор: Maleev Ivan
Принадлежит: KLA-TENCOR CORPORATION

The present invention includes a transmissive-reflective photocathode including a membrane configured to absorb photons from an illumination source via a first surface of the membrane, the membrane further configured to emit photoelectrons in a reflection mode via the first surface, the membrane further configured to emit photoelectrons in a transmissive mode via a second surface, the first surface and the second surface being substantially parallel, and a membrane support structure configured to mechanically secure the membrane, the membrane support structure further configured to provide at least a first pathway between the first surface and free space and a second pathway between the second surface and free space. 1. A photocathode , comprising:a membrane configured to absorb photons from an illumination source via a first surface of the membrane, the membrane further configured to emit photoelectrons in a reflection mode via the first surface, the membrane further configured to emit photoelectrons in a transmissive mode via a second surface, the first surface and the second surface being substantially parallel; anda membrane support structure configured to mechanically secure the membrane, the membrane support structure further configured to provide at least a first pathway between the first surface and free space and a second pathway between the second surface and free space.2. The photocathode of claim 1 , wherein at least a portion of the membrane includes one or more graphene sheets of a selected thickness.3. The photocathode of claim 1 , wherein at least a portion of the membrane includes at least a layer of a nanostructured film of a selected thickness.4. The photocathode of claim 1 , wherein membrane comprises:a membrane having a selected thickness and a selected surface area.5. The photocathode of claim 4 , wherein the selected thickness is between 10 nm and 1000 nm.6. The photocathode of claim 4 , wherein the selected surface area is between 10 and 50 ...

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Номер записи: 38
23-05-2013 дата публикации

Apparatus having a controllable filter matrix to selectively acquire different components of solar irradiance

Номер: US20130126706A1
Автор: Christian Heller, Mark Ronald Lynass, Michael Schmidt
Принадлежит: General Electric Co

Apparatus and method, as may be used to acquire different components of solar irradiance in a solar-based power generation system or as may be used in a sky imager, are provided. A filter matrix ( 12 ) may be arranged to receive incident solar irradiance. The filter matrix may include an array of pixels ( 20 ) controllable to selectively acquire different components of the solar irradiance. A module, such as a photosensor ( 22 ) or calculator module ( 29 ) may be configured to determine a spatial location of at least one of the irradiance components relative to the array of pixels of the filter matrix. A controller ( 26 ) may be electrically coupled to the module to supply a control signal to the filter matrix based on the determined location of the irradiance component to pass a selected one of the irradiance components.

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Номер записи: 39
30-05-2013 дата публикации

OPTICAL EXAMINATIONS WITH CONTROLLED INPUT LIGHT

Номер: US20130134293A1
Автор: Neijzen Jacobus Hermanus Maria, Schleipen Johannes Joseph Hubertina Barbara, Van Den Eerenbeemd Jacobus Maria Antonius
Принадлежит: KONINKLIJKE PHILIPS ELECTRONICS N.V.

The invention relates to a sensor device () in which the spatial distribution of an input light (L) emission from a light emitting area () of a light source () can selectively be changed. The input light is propagated through an optical system () to produce some output light (L). Changes of the input light are taken into account when the detected output light (L) is evaluated. Thus it is for example possible to detect and/or eliminate optical disturbances occurring in the optical path outside an object region (). The light source () may particularly comprise a plurality of a light emitting segments () that can selectively be switched on or off. 1. An optical sensor device comprising:{'b': '1', 'a light source with an area for emitting “input light” (L), wherein the spatial distribution of the input-light emission from said area can selectively be changed;'}{'b': 1', '2, 'an optical system through which said input light (L) can propagate to yield an emission of “output light” (L);'}{'b': '2', 'a light detector for detecting said output light (L);'}{'b': 2', '1, 'an evaluation unit for evaluating the detected output light (L) while taking changes of the input light (L) into account.'}2. A method for making examinations with an optical sensor device , said method comprising the following steps:{'b': '1', 'emitting “input light” (L) from a light emitting area to yield light source, wherein the spatial distribution of this input-light emission is selectively changed;'}{'b': 1', '2, 'propagating said input light (L) through an optical system to yield an emission of “output light” (L);'}{'b': '2', 'detecting said output light (L) with a light detector;'}{'b': 2', '1, 'evaluating the detected output light (L) with an evaluation unit while taking changes of the input light (L) into account.'}3100200. The sensor device ( claim 1 , ) according to claim 1 ,characterized in that the sensor device comprises a control unit that is coupled to the light source and the evaluation ...

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Номер записи: 40
30-05-2013 дата публикации

RADIATION DETECTION DEVICE WITH IMPROVED ILLUMINATION RANGE

Номер: US20130134298A1
Автор: MALTERE Alexandre, RUBALDO Laurent
Принадлежит: SOCIETE FRANCAISE DE DETECTEURS INFRAROUGES - SOFRADIR

A pixel comprises a photodetector and a control circuit. The pixel is provided with an output terminal designed to connect an analysis circuit. The photodetector is configured to have two different operating modes associated with different biasing conditions. A switch connecting the photodetector to the output terminal of the pixel and a circuit for a connecting/disconnecting the control circuit with the output terminal of the pixel and with the photodetector allow to switch between the two operating modes. A comparator compares the voltage across the capacitive load with respect to a threshold value and outputs first and second signals according to the comparison. The comparator is connected to the circuit for connecting/disconnecting the control circuit and to the switch. 1. Device for detecting electromagnetic radiation comprising:a photodetector provided with two terminals,a control circuit configured for converting the current issued by the photodetector into a first electrical variable by means of a load,a pixel including the photodetector and the control circuit, the pixel being provided with an output terminal designed to be connected to an analysis circuit,a biasing circuit of the photodetector configured to apply a first potential difference across the terminals of the photodetector in a first operating condition and configured so that one of the terminals of the photodetector is at a floating potential in a second operating condition,a connecting circuit configured for connecting the control circuit with the output terminal of the pixel and with the photodetector when the photodetector is in the first operating mode, and configured for disconnecting the control circuit when the photodetector is in the second operating mode,a switch connecting the photodetector to the output terminal of the pixel and configured to be in the blocking state when the photodetector is in the first operating mode and to be in the passing state when the photodetector is in the ...

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Номер записи: 41
30-05-2013 дата публикации

Optical sensor device and method of manufacturing the same

Номер: US20130134300A1
Автор: Hiroyuki Fujita, Hitoshi Kamamori, Keiichiro Hayashi, Koji Tsukagoshi, Sadao Oku
Принадлежит: Seiko Instruments Inc

Provided is a high-reliability, compact, and low-cost optical sensor device. The optical sensor device includes a glass lid substrate ( 2 ), a glass substrate ( 9 ) with a cavity having divided and exposed through-hole electrodes ( 5 ) on the periphery thereof, and an optical sensor element ( 3 ) mounted on the glass lid substrate, and has a structure in which the glass lid substrate and the glass substrate with a cavity are bonded together. By hermetically sealing with the glass substrates, high reliability is secured. By using the divided through-hole electrodes, the package size is reduced and the number of devices which can be produced in a batch in the manufacture increases, which enables cost reduction.

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Номер записи: 42
06-06-2013 дата публикации

Beam combining and deflecting device

Номер: US20130140429A1
Автор: Marco Schneider
Принадлежит: TOPTICA PHOTONICS AG

The invention relates to a beam combining device comprising a plurality of separate input beam paths ( 9 ) and at least one output beam path ( 10 ) for combining a plurality of input beams to at least one output beam. Devices of this type are required in order, for example, to combine the beams from a plurality of lasers each having a different radiation spectrum to form a single beam. It is an object of the invention to provide a compact and cost-effective beam combining device. In order to achieve this object, the invention proposes that one or a plurality of Risley prism pairs ( 1 ) are assigned to each input beam path ( 9 ) of the beam combining device, the prism pairs deflecting the input beam in an adjustable direction. The invention furthermore relates to a device for deflecting a light beam, comprising at least one Risley prism pair ( 1 ) comprising two prisms ( 2 ) arranged one behind the other in the light beam path, wherein at least one of the two prisms ( 2 ) is mounted in a manner rotatable about a rotation axis ( 3 ), and comprising an electromotive drive that brings about a rotary movement of the at least one prism ( 2 ). According to the invention, the electromotive drive is a piezoelectric vibration drive having a mechanical resonator ( 4 ) and a piezoelectric element ( 5 ) coupled thereto, wherein the resonator ( 4 ) bears against a friction wheel ( 6 ) connected to the at least one rotatably mounted prism ( 2 ) for conjoint rotation.

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Номер записи: 43
06-06-2013 дата публикации

Method and Apparatus for Examining a Sample

Номер: US20130140437A1
Автор: Widzgowski Bernd
Принадлежит: Leica Microsystems CMS GmbH

A method and an apparatus for examining a sample. The apparatus has a light source for generating excitation light in pulses which occur in succession at an excitation pulse frequency, for illuminating a sample region with the excitation pulse, and having a detector for detecting the detection light emanating from the sample region. The apparatus is characterized in that, for each detected photon of the detection light, the detector generates an electrical pulse and thereby a sequence of electrical pulses, and an analog-digital converter is provided that generates a digital data sequence by sampling the sequence of electrical pulses at a sampling rate. 1. A method for examining a sample comprising:generating excitation light in pulses which occur in succession at an excitation pulse frequency;illuminating a sample region with the excitation light;detecting the detection light emanating from the sample region using a detector which, for each detected photon of the detection light, generates an electrical pulse and thereby a sequence of electrical pulses; andgenerating a digital data sequence by sampling the sequence of electrical pulses using an analog-digital converter at a sampling rate.2. The method as recited in claim 1 ,whereina. the sampling rate is higher than the excitation pulse frequency and/orb. the sampling rate is more than 50 times higher than the excitation pulse frequency and/orc. the sampling rate is greater than 1 gigasample per second, in particular, greater than 3 gigasamples per second, in particular, is approximately 5 gigasamples per second, in particular, is greater than 5 gigasamples per second,d. the sampling is carried out at a resolution of 8 bits or at a resolution of 10 bits.3. The method as recited in claim 1 ,wherein the excitation pulse frequency is greater than 50 MHz, in particular, is approximately 80 MHz, and/or the duration of an excitation pulse is shorter than 10 ps (picoseconds), in particular, shorter than 1 ps, in particular ...

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Номер записи: 44
13-06-2013 дата публикации

IMAGING SYSTEM USING OPTICAL FIBER ARRAY INTEGRATED WITH LENSES

Номер: US20130146754A1
Автор: Chang Ki Soo, Choi Hae Young, Kim Geon Hee, Ryu Seon Young, Yang Sun Cheol
Принадлежит: KOREA BASIC SCIENCE INSTITUTE

Provided is an imaging system using an optical fiber array probe integrated with lenses for emitting light transmitted from a light source to a sample, and guiding light generated from the sample. The imaging system includes an optical fiber array probe integrated with lenses including an optical fiber lens with a lens surface of a predetermined radius of curvature in which one ends of two optical fibers are integrally connected with each other by heating a predetermined region including the one ends of the two optical fibers using a heating means. Therefore, a compact imaging system may be realized while effectively improving optical coupling efficiency through a simple manufacturing process. 1. An imaging system using an optical fiber array probe integrated with lenses , the imaging system comprising:an optical fiber array probe integrated with lenses including optical fiber lenses with a lens surface of a predetermined radius of curvature in which one ends of two optical fibers are integrally connected with each other by heating a predetermined region including the one ends of the two optical fibers using a heating means, as an optical fiber array probe integrated lens for emitting light transmitted from a light source to a sample and guiding light generated from the sample, and capable of being scanned at least in one direction; anda detector selectively detecting light transmitted from the optical fiber array probe integrated with lenses as signals of a predetermined region.2. The imaging system of claim 1 , wherein the detector includes a filter for allowing a wavelength to be selectively passed.3. The imaging system of claim 1 , wherein a system control and display unit for controlling the system and visualizing the detected light is connected to the detector.4. The imaging system of claim 1 , wherein the optical fiber array probe integrated with lenses is configured so as to be scanned two-dimensionally or three-dimensionally.5. The imaging system of claim 1 ...

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Номер записи: 45
20-06-2013 дата публикации

LIGHT SENSING APPARATUS AND ADJUSTMENT METHOD THEREOF

Номер: US20130153753A1
Автор: HUNG CHUN-LUNG, KO Chien-Ming, YANG Chang-Hung, YANG CHUN-WEI
Принадлежит: AU OPTRONICS CORP.

A light sensing apparatus includes a light sensing module, a signal conversion module and a processing module. The light sensing module is configured to output a first and second sense signals according to a light intensity emitting thereon. The signal conversion module is electrically coupled to the light sensing module and configured to receive the first and second sense signals and output a sense value according to a relative difference between the first and second sense signals, The comparison module is electrically coupled to the signal conversion module and configured to adjust a light sensing characteristic of the light sensing module according to the sense value so as to adjust a light sensing characteristic of the light sensing module. An adjustment method for a light sensing apparatus is also provided. 1. A light sensing apparatus , comprising:a light sensing module configured to output a first sense signal and a second sense signal according to a light intensity emitting thereon;a signal conversion module electrically coupled to the light sensing module and configured to receive the first and second sense signals from the light sensing module and output a sense value according to a relative difference between the first and second sense signals; anda processing module electrically coupled to the signal conversion module and configured to adjust a light sensing characteristic of the light sensing module according to the sense value so as to adjust a light sensing characteristic of the light sensing module.2. The light sensing apparatus according to claim 1 , wherein the light sensing module comprises: a first transistor comprising a first terminal, a second terminal and a gate terminal for receiving a first control signal;', 'a first capacitor comprising a first terminal electrically coupled to the first terminal of the first transistor, a second terminal for receiving a common voltage;', 'a first light sensing transistor comprising a first terminal ...

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Номер записи: 46
20-06-2013 дата публикации

Electronic device capable of detecting ultraviolent radiation and method thereof

Номер: US20130155252A1
Автор: Wen-Dong Luo
Принадлежит: Futaihua Industry Shenzhen Co Ltd, Hon Hai Precision Industry Co Ltd

An electronic device capable of detecting ultraviolent radiation and a method thereof are provided. The device includes a camera, a voltage-sensitive optical medium, a control switch, and a processor. When the electronic device enters an ultraviolent radiation detecting mode, the camera captures a first image. The processor controls the control switch to create an electrical potential across the optical medium and cause it to become darker after the camera captures the first image. The camera captures a second image after the control switch has allowed an electrical potential for a first preset time interval. The processor acquires reads the respective brightness of the first image and the second image, determines any difference, and determines and outputs the level of intensity of the ultraviolent radiation intensity by reference to a table of differences.

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Номер записи: 47
27-06-2013 дата публикации

OPTICAL CONTROL SENSOR SYSTEM

Номер: US20130161483A1
Автор: Borodin Anatoliv, CHENG William, GAVRILOV Dmitri, Gouzman Mikhail, Kuzminskiy Vladislav, Smagin Vladimir
Принадлежит:

A optical control sensor system includes a driver controlling an operation of a light source coupled to an end of an optical fiber, an orthogonal signal generator, generating a set of different orthogonal signals controlling the driver, a terminal sensor coupled to another end of the optical fiber selecting a predetermined set of input orthogonal signals for converting them into component combinations, constituting output signals, and directing the output signals back to the optical fiber, a device coupled to the light sources and to the first end of the optical fiber for extracting output signals that have passed through a return path in the optical fiber, a detector converting optical output signals into electrical signals, and a selector and a decoder connected to the orthogonal signal generator indicating a current state of the optical control sensor system based on an analysis of the selected combinations of components in the output signals. 1. An optical control sensor system comprising:a light source for emitting light;an orthogonal signal generator, generating a set of different orthogonal signals; anda driver for switching frequencies of the set of different orthogonal signals and modulating an intensity of the light.2. The optical control sensor system of claim 1 , further comprising:a optical fiber receiving the light of the light source at a first end thereof;a terminal sensor coupled to a second end of the optical fiber, the terminal sensor selecting a predetermined set of the different orthogonal signals for converting them into component combinations, constituting output signals, and directing the output signals to the second end of the optical fiber;a device coupled to the light sources and to the first end of the optical fiber for extracting the output signals that have passed through a return path in the optical fiber;a detector converting the output signals into a plurality of electrical signals; anda selector and a decoder connected to the ...

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Номер записи: 48
27-06-2013 дата публикации

TOUCH-SENSITIVE DEVICE AND METHOD FOR DETECTION OF TOUCH

Номер: US20130162555A1
Автор: Jensen Jørgen Korsgaard
Принадлежит: OPDI Technologies A/S

The present invention relates to a method and a device for detection of position of touch. The device comprises a waveguide, at least one light source, and at least one detector device. The waveguide has a touch-surface with a surface structure defining a pattern that defines active surface areas and passive surface areas. The pattern is distributed such that an object that contacts a first area will cause a different disturbance of light than an object that contacts a second area, and such that correct positions of a plurality of concurrent touches may be deduced. 1. A device comprising a waveguide , at least one light source for emitting first light , and at least one detector device for detecting first light , the waveguide being adapted to guide first light across at least a first part of the waveguide from a first end of the first part towards a second end of the first part , the waveguide having a touch-surface with a surface structure defining a pattern that defines active surface areas and passive surface areas , the pattern being distributed such that for a first area of the touch-surface and a second area of the touch-surface , which second area has an outline that is identical with the outline of the first area , and which second area is displaced along the direction of the first light from the first end to the second end , an object that only contacts the entire first area will cause a different disturbance of first light than an object that only contacts the entire second area when first light is guided by the waveguide from the first end towards the second end.2. A device according to claim 1 , wherein the waveguide is further adapted to guide second light across at least the first part of the waveguide from a third end of the first part towards a fourth end of the first part claim 1 , the pattern being distributed such that for a third area of the touch-surface claim 1 , which third area has an outline that is identical with the outline of the first ...

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Номер записи: 49
27-06-2013 дата публикации

REFLECTIVE OPTICAL SENSOR AND IMAGE FORMING DEVICE INCORPORATING THE SAME

Номер: US20130164007A1
Автор: Yanata Toshio
Принадлежит: RICOH COMPANY, LTD.

A reflective optical sensor includes a light emitting element to irradiate a target object with a light beam, a light receiving element to receive the light beam reflected by the surface of the target object, a circuit board on which the light emitting element and light receiving element are mounted, a cover element supported on the circuit board to surround the light emitting element and light receiving element, and a light shielding wall provided in the cover element to be a partition between the light emitting element and light receiving element to prevent a part of the light beam from the light emitting element from leaking to the light receiving element. A layer in a certain thickness is formed on the surface of the circuit board along either or both sides of the light shielding wall. 1. A reflective optical sensor comprising:a light emitting element to irradiate a target object with a light beam;a light receiving element to receive the light beam reflected by a surface of the target object;a circuit board on which the light emitting element and light receiving element are mounted;a cover element supported on the circuit board to surround the light emitting element and light receiving element; anda light shielding wall provided in the cover element to be a partition between the light emitting element and light receiving element, and positioned to contact a surface of the circuit board at one end or not to contact the surface at one end with a minute gap, to prevent a part of the light beam from the light emitting element from leaking to the light receiving element, the one end being an end close to the circuit board, whereina layer in a certain thickness is formed on the surface of the circuit board along either or both sides of the light shielding wall.2. A reflective optical sensor according to claim 1 , wherein:the layer is a silkscreen layer formed by silkscreen printing;a surface of the silkscreen layer is located at a higher position than the one end of ...

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Номер записи: 50
04-07-2013 дата публикации

TIME-DELAY INTEGRATION THROUGH REDUCTION OF DELAY BETWEEN SUBSEQUENT CAPTURE OPERATIONS OF A LIGHT-DETECTION DEVICE

Номер: US20130168535A1
Автор: Eldesouki Munir
Принадлежит:

Disclosed are a system, a method and an apparatus of reduction of delay between subsequent capture operations of a light-detection device. In one embodiment, a light-detection circuit includes an avalanche photodiode implemented in a deep submicron CMOS technology. In addition, the light-detection circuit includes a passive quench control circuit to create an avalanche current that generates a high voltage at an output of a second inverter gate of the circuit. The light-detection circuit further includes an active quench control circuit to reduce a dead time of the circuit. The light-detection circuit also includes a reset circuit to create a low voltage at an output of the second inverter gate and to create an active reset through a PMOS transistor of the light-detection circuit. 1. A light-detection circuit , comprising:an avalanche photodiode implemented in a deep submicron CMOS technology;a passive quench control circuit of the light-detection circuit to create an avalanche current that generates a high voltage at an output of a second inverter gate of the circuit;an active quench control circuit of the light-detection circuit to reduce a dead time of the circuit; anda reset circuit of the light-detection circuit to create a low voltage at an output of the second inverter gate and to create an active reset of a PMOS transistor of the circuit.2. The circuit of wherein the avalanche photodiode is operated in a Geiger mode of operation claim 1 , wherein the passive quench control circuit claim 1 , the active quench control circuit claim 1 , and the reset circuit operate in concert to reduce a dead time of the circuit to at most 250 ps.3. The circuit of wherein the deep submicron CMOS technology is a 130 nm CMOS technology having a breakdown voltage of 11.3V.4. The circuit of wherein the light-detection circuit is a single photon counter device that operates the avalanche photodiode at an operating point that reduces an afterpulsing effect.5. The circuit of wherein ...

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Номер записи: 51
04-07-2013 дата публикации

Light Source Evaluation Device and Solar Cell Evaluation Device

Номер: US20130169306A1
Автор: Nishikawa Yoshihiro, Okura Tsutomu
Принадлежит:

With a light source evaluation device according to the present invention and a solar cell evaluation device employing the same, a dependency P (λ, Ib) for each wavelength λ of a short-circuit current Ib generated by white bias light of a measurement target solar cell , which is pre-measured at each of a plurality (i) of irradiance levels, is regarded as a spectral responsivity Pi (λ) at each irradiance level, and a value for adjusting a light quantity of an illumination light source that illuminates the solar cell is computed using a spectral responsivity Ps (λ), which is computed using the spectral responsivity Pi (λ), a pre-supplied spectral irradiance S (λ) of reference sunlight, and a pre-measured spectral irradiance L (λ) of the illumination light source . Therefore the light source evaluation device having this configuration and the solar cell evaluation device employing the same can accurately adjust the light quantity of the illumination light source when evaluating the solar cell of which spectral responsivity changes depending on the light quantity. 1. A light source evaluation device , comprising:a spectro-radio meter that measures a spectral irradiance L (λ) of a light source for illuminating a measurement target solar cell;a first storage unit that stores a pre-measured spectral irradiance S (λ) of reference sunlight;a second storage unit that stores, as a spectral responsivity Pi (λ) at each of a plurality (i) of irradiation levels, a dependency P (λ, Ib) for each wavelength λ, of a short-circuit current Ib generated by white bias light of the solar cell, which is pre-measured at each irradiance level; anda computing unit that computes a value for adjusting a light quantity of the light source for illuminating the solar cell, using a spectral responsivity Ps (λ) of the solar cell corresponding to the irradiance level of each wavelength of the light source determined by computation using the spectral responsivity Pi (λ) at each of the plurality (i) of ...

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Номер записи: 52
18-07-2013 дата публикации

LIGHT MEASURING CIRCUIT AND METHOD

Номер: US20130181111A1
Автор: JAHANA Tadashi
Принадлежит: RENESAS ELECTRONICS CORPORATION

A light measuring circuit includes an integration circuit for integrating a current supplied form a photoelectric conversion element, an AD converter for AD converting the output voltage of the integration circuit, and a controller for obtaining a first AD conversion result from the AD converter and controlling the integration circuit and the AD converter to determine the time constant of the integration circuit in a second AD conversion following a first AD conversion. In this way, it is possible to measure the photocurrent with a wide dynamic range without making the circuit more complicated. 1. A light measuring circuit comprising:an integration circuit for integrating a current supplied from a photoelectric conversion element;an AD converter for AD converting the output voltage of the integration circuit; anda controller for obtaining a first AD conversion result from the AD converter, and controlling the integration circuit and the AD converter to determine the time constant of the integration circuit in a second AD conversion following a first AD conversion based on the value of the first AD conversion result.2. The light measuring circuit according to claim 1 ,wherein the controller controls so that the time constant of the integration circuit in the second AD conversion is different from that in the first AD conversion.3. The light measuring circuit according to claim 1 ,wherein the integration circuit comprises:an operational amplifier for receiving a current that is supplied from the photoelectric conversion element to an inverting terminal, coupling a non-inverting terminal to a reference voltage, and outputting the output voltage of the integration circuit from an output terminal; andfirst to n-th (n is an integer of 2 or more) capacitive elements that can be coupled in parallel between the non-inverting terminal and the output terminal,wherein the controller determines the time constant of the integration circuit in the second AD conversion according to ...

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Номер записи: 53
08-08-2013 дата публикации

SYSTEM AND METHOD OF ELECTROMAGNETIC RADIATION CONTROL

Номер: US20130200250A1
Автор: "NGUYEN Thelinh", Daghighian Henry, Kocot Chris
Принадлежит: FINISAR CORPORATION

A method of compensating for electromagnetic radiation. The method may include measuring electromagnetic radiation emanating from circuitry at a first frequency and adjusting at least one of the electrical settings of the circuitry based on the measurement of the electromagnetic radiation to reduce the electromagnetic radiation at the first frequency emanating from the circuitry. 1. A method of compensating for electromagnetic radiation , the method comprising:measuring electromagnetic radiation emanating from circuitry at a first frequency; andadjusting at least one of the electrical settings of the circuitry based on the measurement of the electromagnetic radiation to reduce the electromagnetic radiation at the first frequency emanating from the circuitry.2. The method of claim 1 , wherein the first frequency approximately equals a clock frequency used by the circuitry.3. The method of claim 1 , wherein the circuitry receives signals from or transmits signals to an optical subassembly.4. The method of claim 3 , wherein the adjusted electrical setting comprises at least one of: modulation level claim 3 , signal amplitude level claim 3 , electrical cross point level claim 3 , signal rise time claim 3 , signal fall time claim 3 , signal overshoot claim 3 , signal undershoot claim 3 , receiver sensitivity claim 3 , and voltage biasing level.5. The method of claim 1 , wherein the circuitry is configured to extract data from an electrical signal claim 1 , wherein adjusting the at least one of the electrical settings of the circuitry reduces an ability of the circuitry to extract the data from the electrical signal.6. The method of claim 1 , wherein measuring the electromagnetic radiation is performed by an electromagnetic radiation detection module.7. The method of claim 6 , further comprising sending the measurement of the electromagnetic radiation at the first frequency to a control module that controls electrical settings of the circuitry.8. The method of claim 7 , ...

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Номер записи: 54
08-08-2013 дата публикации

REFRACTOMETER WITH A COMPARATIVE VISION CORRECTION SIMULATOR

Номер: US20130201447A1
Автор: Garcia Jose R., Thompson Keith P.
Принадлежит: DigitalVision, LLC

A method and apparatus for vision testing and for simulation of eyesight correcting modalities is disclosed, the method including generating one or more images to be viewed by a patient, modulating the wavefront of each image by a differing amount and/or changing other optical attributes of one or more images by differing amounts, and selecting the preferred image based upon patient response. The apparatus includes devices for generating one or more images to be viewed by a patient, modulating the wavefront of each image by a differing amount and/or changing other optical attributes of one or more images by differing amounts, and devices for selecting the preferred image based upon patient response. 1. A vision testing method in which the patient to be tested is in a natural viewing position with nothing interposed between the patient's eyes and the image being viewed comprising the steps of:generating a plurality of images to be viewed by a patient for comparison, modulating the wavefront of one or more images by an amount that differs from another image, and comparing and selecting the preferred image or images based upon patient response.2. A vision testing method as defined in comprising the additional step of selecting a specification for a corrective modality based on said preferred image.3. A vision testing method as defined in comprising the additional step of computing a laser vision treatment profile based upon the wavefront modulation of the said preferred image.4. A vision testing method as defined in in which at least two of said images are generated in a side-by-side arrangement for comparison by the patient in a monocular or binocular fashion.5. A vision testing method as defined in in which said images are modulated by at least one wavefront generator.6. A vision testing method as defined in in which said wavefront generator has at least one lens element.7. A vision testing method as defined in in which said wavefront generator has a plurality of ...

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Номер записи: 55
08-08-2013 дата публикации

PHOTODECTOR UNIT, OPTICAL PICKUP INCLUDING THE PHOTODECTOR UNIT, AND OPTICAL SYSTEM INCLUDING THE OPTICAL PICKUP

Номер: US20130205309A1
Автор: Kim Young-taek
Принадлежит: TOSHIBA SAMSUNG STORAGE TECHNOLOGY KOREA CORPORATION

Provided is a photodetector unit including a photodetector integrated circuit (PDIC). The photodetector may reduce a height of a conventional optical pickup by improving the input/output terminals of the PDIC and accordingly improving the contact points and wires of a corresponding printed circuit board (PCB). 1. A photodetector integrated circuit (PDIC) for an optical pickup , the PDIC comprising:a light-receiving portion comprising a main light-receiving part and sub light-receiving parts respectively disposed on oppositing sides of the main light-receiving part, each of the main light-receiving part and the sub light-receiving parts comprising a plurality of sectional light-receiving areas; anda plurality of lands which output a detection signal of light detected by each of the sectional light-receiving areas of the main light-receiving part and the sub light-receiving parts,wherein the plurality of lands are arranged to form two lateral lines in a height direction of the optical pickup.2. The PDIC of claim 1 , further comprising a printed circuit board (PCB) which is coupled to the PDIC so as to contact the plurality of lands.3. The PDIC of claim 2 , wherein the PCB comprises a flexible PCB.4. The PDIC of claim 2 , wherein the PCB comprises a plurality of contact points that contact the plurality of lands claim 2 , and wires formed on the PCB to connect the plurality of contact points to an external circuit extend in a lateral direction that is perpendicular to the height direction of the optical pickup.5. The PDIC of claim 2 , wherein the PCB comprises a plurality of contact points that contact the plurality of lands claim 2 , and some of a plurality of wires formed on the PCB to connect the plurality of contact points to an external circuit extend in a lateral direction that is perpendicular to the height direction of the optical pickup claim 2 , and the remaining wires extend in a second direction opposite to a first direction corresponding to a direction ...

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Номер записи: 56
15-08-2013 дата публикации

Measuring Transducer for Detecting the Formation of Foam on a Liquid

Номер: US20130207006A1
Автор: Weiler Christoph
Принадлежит: SIEMENS AKTIENGESELLSCHAFT

A measuring transducer for detecting the formation of foam on a liquid, which is movably inserted into the liquid and the density of which is predetermined, or can be set, such that the measuring transducer floats on the surface of the liquid, wherein a device for determining the luminous flux incident on the top side of the measuring transducer is provided to detect the formation of foam on the liquid which, in many cases, is a process sequence property that is important for process optimization, and wherein an evaluation device of the measuring transducer is configured to output a signal for indicating the formation of the foam when the light flux determined undershoots a predefined threshold value. 19.-. (canceled)10. A measuring transducer for detecting formation of foam on a liquid , the measuring transducer being movably placeable in the liquid and a density of which is one of predetermined and adjustable such that the measuring transducer floats on a surface of the liquid , comprising:a device configured to determine a luminous flux incident on an upper side of the measuring transducer; andan evaluation device arranged in the measuring transducer and formed so as to output a signal to indicate foam formation on the liquid when the determined luminous flux falls below a specified threshold value.11. The measuring transducer as claimed in claim 10 , wherein the device configured to determine the luminous flux incident comprises one of a phototransistor and a photodiode.12. The measuring transducer as claimed in claim 10 , wherein the threshold value is specified as a function of a calibration value determined in a foam-free state.13. The measuring transducer as claimed in claim 11 , wherein the threshold value is specified as a function of a calibration value determined in a foam-free state.14. The measuring transducer as claimed in claim 12 , wherein the threshold value is additionally specified as a function of a further calibration value determined in a ...

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Номер записи: 57
22-08-2013 дата публикации

CONFIGURABLE PHOTO DETECTOR CIRCUIT

Номер: US20130214133A1
Автор: Chamberlain Daryl, ZHENG Dong
Принадлежит: INTERSIL AMERICAS INC.

A configurable photo detector circuit comprises a photo detector array including a plurality of photo detectors coupled to a plurality of amplifiers. A method for programming a detection pattern of the configurable photo detector circuit comprises selecting a first detection pattern for the photo detector array, generating first signals to create the first selected detection pattern, and applying the first generated signals to the photo detector circuit to implement the first selected detection pattern.

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Номер записи: 58
22-08-2013 дата публикации

PASSIVE DETECTORS FOR IMAGING SYSTEMS

Номер: US20130214158A1
Автор: CARPENTER Howard E., KAUFMAN Peter N.
Принадлежит: PUBLIC SERVICE SOLUTIONS, INC.

Passive detector structures for imaging systems are provided which implement unpowered, passive front-end detector structures with direct-to-digital measurement data output for detecting incident photonic radiation in various portions (e.g., thermal (IR), near IR, UV and visible light) of the electromagnetic spectrum. 1. A photon detector device , comprising:a substrate;a resonator member having a frequency and disposed on the substrate;a passive detector structure disposed on the substrate and mechanically coupled to the resonator member, wherein the passive detector structure comprises a detector member that is mechanically distorted in response to photon exposure to apply a mechanical force to the resonator member and change the frequency of the resonator member in response to said mechanical force; anda digital circuit coupled to the resonator member, for determining the frequency of the resonator member, which changes due to the mechanical force exerted on said resonator member by the passive detector structure, and determining an amount of incident photonic energy absorbed by said detector member based on said determined frequency.2. The photon detector of claim 1 , wherein the photon detector is configured to detect infrared energy.3. The photon detector of claim 1 , wherein the passive detector structure further comprises a first support member claim 1 , wherein the detector member comprises a ribbon member claim 1 , and wherein the passive detector structure and the resonator member form a bridge structure claim 1 , wherein the bridge structure comprises the ribbon member suspended above said substrate between the first support member and the resonator member above said substrate claim 1 , wherein the ribbon member comprises a material having a thermal coefficient of expansion claim 1 , which expands and contracts by absorption of photonic energy to exert mechanical force on the resonator member.4. The photon detector of claim 3 , wherein the first support ...

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Номер записи: 59
22-08-2013 дата публикации

DOCUMENT PHOTOSENSOR OF SURFACE-MOUNTED ELEMENTS

Номер: US20130214182A1
Автор: Asakawa Seiji, Okawa Katsutoshi
Принадлежит: JAPAN CASH MACHINE CO., LTD.

A document photosensor is provided which comprises a substrate , a bracket disposed on substrate for forming a light diffusion chamber and a light receiving chamber separated from each other, an LED chip surface-mounted on substrate in light diffusion chamber , and a PD chip surface-mounted on substrate in light receiving chamber . These chips and are secured at precise locations on a substrate and with accuracy on the order of a few micrometers or less to exactly detect by PD chip a light irradiated from LED chip or after reflection of the light on a bill moved along a passageway to improve validation performance of bill 115-. (canceled)16. A document photosensor comprising: a substrate , a bracket disposed on the substrate for forming a light diffusion chamber and a light receiving chamber separated from each other , a light emitting element surface-mounted on the substrate in the light diffusion chamber , and a light receiving element surface-mounted on the substrate in the light receiving chamber.17. The document photosensor of claim 16 , wherein a light emitted from the light emitting element passes the light diffusion chamber claim 16 , is reflected on a document moved along a passageway claim 16 , and then is received by the light receiving element in the light receiving chamber.18. The document photosensor of claim 16 , wherein the light emitting element has one terminal secured on and electrically connected to an emission electrode formed on the substrate claim 16 ,the light receiving element has one terminal secured on and electrically connected to an acceptance electrode,the emission electrode and acceptance electrode are deployed in alignment on an array line perpendicular to a moved direction of the document in the passageway.19. The document photosensor of claim 16 , further comprising an aspheric lens supported on the bracket opposite to the light emitting and receiving elements.20. The document photosensor of claim 19 , wherein a light emitted from ...

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Номер записи: 60
29-08-2013 дата публикации

PHOTOELECTRIC CONVERSION APPARATUS AND IMAGE PICKUP SYSTEM HAVING PHOTOELECTRIC CONVERSION APPARATUS

Номер: US20130221197A1
Автор: Iwata Koichiro, Shimotsusa Mineo
Принадлежит: CANON KABUSHIKI KAISHA

A photoelectric conversion apparatus according to one aspect of the present invention includes a first substrate including a photoelectric conversion region and a surrounding region, and a second substrate including a circuit for processing a signal from the photoelectric conversion region, and overlapping the first substrate. In this case, the circuit for processing a signal from the photoelectric conversion region includes a first circuit and a second circuit with a higher drive frequency than that of the first circuit. In an orthogonal projection, the second circuit is only provided in the photoelectric conversion region. 1. A photoelectric conversion apparatus comprising:a first substrate including a photoelectric conversion region including a photoelectric conversion element and a circuit for reading a signal from the photoelectric conversion region, and a surrounding region; anda second substrate including a circuit for processing a signal from the photoelectric conversion region, and overlapping the first substrate,wherein the circuit for processing a signal from the photoelectric conversion region includes a first circuit and a second circuit with a higher drive frequency than that of the first circuit; andin an orthogonal projection, the second circuit is only provided in the surrounding region.2. The photoelectric conversion apparatus according to claim 1 , wherein the photoelectric conversion region includes a plurality of pixels and a plurality of signal lines for outputting signals from the plurality of pixels claim 1 , andthe second circuit includes a scanning circuit for outputting signals from the plurality of signal lines to a common signal line.3. The photoelectric conversion apparatus according to claim 1 , whereinthe second circuit includes a counter circuit of an analog-digital converter that converts an analog signal to a digital signal.4. The photoelectric conversion apparatus according to claim 1 , wherein in the orthogonal projection claim 1 ...

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Номер записи: 61
29-08-2013 дата публикации

OPTICAL COUPLING DEVICE

Номер: US20130221248A1
Автор: KOMOTO Satoshi, KUGIYAMA Yuta, NAGAFUCHI Tatsuhiko
Принадлежит: KABUSHIKI KAISHA TOSHIBA

An optical coupling device includes a first lead part, a light emitting element mounted on the first lead part, a first wire connected to the first lead part and the light emitting element, a second lead part, a light receiving element fixed to the second lead part, a second wire connected to the second lead part and the light receiving element, and an insulating film configured to allow passage of light emitted from the light emitting element. The insulating film does not make contact with the first lead part, the light emitting element, the first wire, the second lead part, the light receiving element, or the second wire. 1. An optical coupling device comprising:a first lead part;a light emitting element mounted on the first lead part;a first wire connected to the first lead part and the light emitting element;a first transparent resin body which covers the light emitting element and the first wire and which allows transmission light emitted from the light emitting element therethrough;a second lead part;a light receiving element fixed to the second lead part;a second wire connected to the second lead part and the light receiving element;an insulating film, which allows transmission of light emitted from the light emitting element therethrough, and which is disposed intermediate of the first and the second transparent resin bodies, such that it does not contact the first lead part, the light emitting element, the first wire, the second lead part, the light receiving element, and the second wire; anda light blocking resin body which surrounds the first transparent resin body, the second transparent resin body and the insulating film, and which is configured to block the light emitted from the light emitting element, whereinthe first lead part includes a plate-shaped first mount bed on which the light emitting element is mounted;the second lead part includes a plate-shaped second mount bed that to which the light receiving element is fixed;the first mount bed, the ...

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Номер записи: 62
29-08-2013 дата публикации

METHOD AND DEVICE FOR DETERMINING A RADIATION CHARACTERISTIC FOR AN ILLUMINATION DEVICE OF A VEHICLE

Номер: US20130222792A1
Автор: Roeckl Philipp, Schneider Ingolf, SCHULADEN Jan
Принадлежит: GM GLOBAL TECHNOLOGY OPERATIONS LLC

A method for determining a radiation characteristic for a vehicle illumination device to be produced from possible radiation characteristics based on a parameter is provided. The parameter is selected from an illumination geometry that can be generated by the device in a surroundings of the device, a device position, and a person-related type of perception. The method includes determining a first value of a light intensity that can be generated for a first point located within an illuminatable area based on the parameter. A second value of the light intensity that can be generated by the illumination device is determined for second points based on the first value. The second points are arranged in the surroundings of the illumination device. A light distribution that can be generated by the illumination device is determined based on the first and second values and the light distribution is outputted to an interface. 1. A method for determining a radiation characteristic for an illumination device of a vehicle to be produced from a plurality of possible radiation characteristics based on at least one parameter , wherein the at least one parameter is selected from a group consisting of an illumination geometry that can be generated by the illumination device in a surroundings of the illumination device , a position of the illumination device on the vehicle , and a person-related type of perception of a generated illumination geometry , wherein the method comprises the steps of:determining a first value of a light intensity that can be generated for at least one first point located within an illuminable area that can be illuminated by the illumination device, based on the at least one parameter;determining a second value of the light intensity that can be generated by the illumination device for each point of a plurality of second points, based on the first value of the light intensity, wherein the plurality of second points is arranged in the surroundings of the ...

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Номер записи: 63
05-09-2013 дата публикации

PHOTO DETECTING ELEMENT, AND OPTICAL PICK-UP AND DISC DRIVE INCLUDING THE SAME

Номер: US20130229897A1
Автор: Jeong Jin-ho, Oh Jung-bae
Принадлежит: Toshiba Samsung Storage Technology Korean Corporation

Provided is a photo detecting element including a body with an optical sensor and an amplification unit for amplifying a signal output from the optical sensor. The photo detecting element includes a driving voltage port that applies a driving voltage to the amplification unit, a ground port that provides a ground for the amplification unit, and a plurality of output ports interposed between the driving voltage port and the ground port, and outputting a signal received from the amplification unit. The driving voltage port, ground port, and plurality of output ports are disposed on the same one side of the body. 1. A photo detecting element comprising:a body including an optical sensor and an amplification unit configured to amplify a signal output from the optical sensor;a driving voltage port disposed on one side of the body and configured to apply a driving voltage to the amplification unit;a ground port disposed on the one side of the body and configured to provide a ground for the amplification unit; anda plurality of output ports interposed between the driving voltage port and the ground port on the one side of the body, and configured to output a signal received from the amplification unit.2. The photo detecting element according to claim 1 , whereinthe plurality of output ports comprise a P-type differential output port and an N-type differential output port;the N-type differential output port being disposed close to the ground port; andthe P-type differential output port being disposed close to the driving voltage port.3. The photo detecting element according to further comprising:a gain controller included in the body and configured to control a gain of the amplification unit; anda plurality of control signal input ports disposed on another side of the body and configured to apply a control signal to the amplification unit.4. The photo detecting element according to claim 3 , wherein the plurality of control signal input ports comprise a serial clock signal ...

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Номер записи: 64
12-09-2013 дата публикации

Wireless Battery-Powered Daylight Sensor

Номер: US20130234008A1
Автор: Steiner James P.
Принадлежит:

A wireless battery-powered daylight sensor for measuring a total light intensity in a space is operable to transmit wireless signals using a variable transmission rate that is dependent upon the total light intensity in the space. The sensor comprises a photosensitive circuit, a wireless transmitter for transmitting the wireless signals, a controller coupled to the photosensitive circuit and the wireless transmitter, and a battery for powering the photosensitive circuit, the wireless transmitter, and the controller. The photosensitive circuit is operable to generate a light intensity control signal in response to the total light intensity in the space. The controller transmits the wireless signals in response to the light intensity control signal using the variable transmission rate that is dependent upon the total light intensity in the space. The variable transmission rate may be dependent upon an amount of change of the total light intensity in the space. In addition, the variable transmission rate may be further dependent upon a rate of change of the total light intensity in the space. 1. A wireless battery-powered daylight sensor for measuring a total light intensity in a space , the sensor comprising:a photosensitive circuit operable to generate a light intensity control signal in response to the total light intensity in the space;a wireless transmitter for transmitting wireless signals;a controller coupled to the photosensitive circuit and the wireless transmitter, the controller operable to transmit wireless signals in response to the light intensity control signal; anda battery for powering the photosensitive circuit, the wireless transmitter, and the controller;wherein the controller is operable to transmit wireless signals using a variable transmission rate that is dependent upon an amount of change of the total light intensity in the space and dependent upon a rate of change of the total light intensity in the space, such that the controller does not ...

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Номер записи: 65
19-09-2013 дата публикации

Transmitting Light with Lateral Variation

Номер: US20130240706A1
Автор: Kiesel Peter, Schmidt Oliver
Принадлежит:

Input light, such as from an optical sensor or stimulus-wavelength converter, includes one or more light or dark sub-bands. The input light is transmitted, such as through a transmissive layer or transmission component, to obtain effects due to transmission with lateral variation. A detector can, for example, obtain spectral information or other photon energy information about the sub-bands due to lateral variation. For each light or dark sub-band, a transmission component can, for example, provide a respective light or dark spot, and spot position can be used to obtain spectral information such as absolute wavelength or wavelength change. A photosensing component can sense or detect transmitted light or output photons, such as with a photosensor array or a position-sensitive detector. Circuitry can use photosensed quantities to obtain, e.g. a differential signal or information about time of wavelength change. 1. A detection system , comprising: a transmission component that includes at least one layer with laterally varying transmission properties, the transmission component configured to, when illuminated with input light, output one or more sub-bands of optical wavelengths at respective positions along an output surface of the transmission component, including at least a first sub-band output at a first position of the transmission component output surface and a second sub-band output at a second position of the transmission component output surface; and', 'a photosensing component configured to receive the one or more sub-bands of optical wavelengths output by the transmission component and to generate signals in response to the one or more sub-bands of optical wavelengths, including generating a first signal responsive to the first sub-band and the second sub-band; and, 'a detector comprising at least one layer, the detector includingcircuitry configured to determine changes in the first and second signals over time and to generate an output signal that ...

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Номер записи: 66
19-09-2013 дата публикации

OPTICAL SENSOR

Номер: US20130240717A1
Автор: Suenaga Tetsuji, Yamanobe Masato
Принадлежит: Alpine Electronics, Inc.

A monitor-light-emitting device and multiple light-emitting devices are mounted on a board, and a light-guiding member is disposed in front of these devices. Monitor light emitted from the monitor-light-emitting device is directly supplied to a light receiving device. Part of light emitted from the multiple light-emitting devices is incident on the light-guiding member and is used as reference light. The reference light is received by the light receiving device. Reflected detection light that has been reflected off a target object located in front of the optical sensor is transmitted through the light-guiding member and is received by the light receiving device. A condenser is disposed in front of the light receiving device and the reference light or the reflected detection light is efficiently supplied to the light receiving device. 1. An optical sensor comprising:a monitor-light-emitting device that emits light at a first timing;an emitting device that emits light at a second timing different from the first timing;a light receiving device arranged adjacent to the monitor-light-emitting device and the light-emitting device; anda light-guiding member disposed in front of the light-emitting device and the light receiving device;wherein reference light corresponding to the light emitted from the light-emitting device propagates through the light-guiding member and is received by the light receiving device;wherein light emitted from the light-emitting device is transmitted through the light-guiding member, and is reflected by a target object located in front of the optical sensor, and is guided back by the light-guiding member to the light receiving device;wherein a visor portion is disposed between the monitor-light-emitting device and the light-guiding member, such that light emitted from the monitor-light-emitting device is directly incident on the light receiving device; andwherein presence or absence of target object is determined based on a measured amount of ...

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Номер записи: 67
19-09-2013 дата публикации

OPTO-ISOLATION CIRCUIT

Номер: US20130240764A1
Автор: Kravitz Andrew S
Принадлежит:

An opto-isolation circuit () is provided, including an optocoupler () configured to optically transfer a raw output signal, a conversion circuit () coupled to an optocoupler output and configured to convert the raw output signal into a predetermined converted signal, and a control circuit () coupled to the optocoupler output. The control circuit () is configured to generate an autonomous control signal from the raw output signal after the raw output signal passes through the optocoupler (), wherein the autonomous control signal is generated only if the raw output signal exceeds a predetermined conversion threshold, and control the conversion circuit () and convert the raw output signal into the predetermined converted signal if the autonomous control signal is generated by the control circuit () and output the raw output signal to an output port if the autonomous control signal is not generated by the control circuit (). 1300. An opto-isolation circuit () , comprising:{'b': '303', 'an optocoupler () configured to optically transfer a raw output signal;'}{'b': '317', 'a conversion circuit () coupled to an optocoupler output and configured to convert the raw output signal into a predetermined converted signal; and'}{'b': '306', 'claim-text': [{'b': '303', 'generate an autonomous control signal from the raw output signal after the raw output signal passes through the optocoupler (), wherein the autonomous control signal is generated only if the raw output signal exceeds a predetermined conversion threshold; and'}, {'b': 317', '306', '306, 'control the conversion circuit () and convert the raw output signal into the predetermined converted signal if the autonomous control signal is generated by the control circuit () and output the raw output signal to an output port if the autonomous control signal is not generated by the control circuit ().'}], 'a control circuit () coupled to the optocoupler output and configured to2300. The opto-isolation circuit () of claim 1 , ...

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Номер записи: 68
26-09-2013 дата публикации

Detecting device and method for detecting an edge of transparent material

Номер: US20130248683A1
Автор: Chih-Chieh Lin, Tsung-Yueh Chen
Принадлежит: Hiti Digital Inc

A detecting device includes an actuating unit for driving a transparent material, a light source for emitting light to the transparent material driven by the actuating unit, a light sensor for sensing the light emitted from the light source as an edge of the transparent material is moved to different positions relative to the light source so as to generate a corresponding optical intensity signal, a transforming circuit coupled to the light sensor for transforming the optical intensity signal into a transforming signal, and a processing unit coupled to the transforming circuit for determining whether the edge of the transparent material is moved to a position between the light source and the light sensor according to the transforming signal transmitted from the transforming circuit.

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Номер записи: 69
26-09-2013 дата публикации

Time-delay integration imaging method and apparatus using a high-speed in-pixel analog photon counter

Номер: US20130248689A1
Автор: Munir Eldesouki
Принадлежит: King Abdulaziz City for Science and Technology KACST

A high speed analog photon counter and method is provided. In one aspect, the method includes accumulating an electric charge in a capacitor of a circuit electrically coupled to a current source. The method further includes comparing the electric charge accumulated in the capacitor of the circuit with a reference voltage through a comparator of the circuit electrically coupled to an output of the capacitor. The method also includes increasing a speed of operation of a measurement device through implementing the circuit inside a pixel. The method further includes transferring the accumulated electric charge to a circuit of an adjacent pixel and synchronizing the transfer of the accumulated electric with a movement of an object captured by an image sensor device before implementing a time-delay integration operation.

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Номер записи: 70
26-09-2013 дата публикации

RESONATOR CONTROL APPARATUS

Номер: US20130248718A1
Автор: Shiomi Yasutomo
Принадлежит: KABUSHIKI KAISHA TOSHIBA

According to one embodiment, a resonator control apparatus includes: a first light source that outputs resonance light λ; a second light source that outputs first control light λ; a third light source that outputs second control light λof a visible wavelength region or a near-infrared wavelength region; a pair of high reflective mirrors whose resonator length is set to ()×−(wavelength of the resonance light λ×integer); a photodetector that monitors transmitted light from the mirror pair; an integrator that captures and integrates two signals detected by the photodetector; a resonator length control unit that controls the resonator length of the mirror pair; and a driver that applies, to the resonator length control unit, a voltage that is calculated by capturing an output signal from the integrator in such a way as to maximize transmittance detected by the photodetector. 1. A resonator control apparatus , comprising:{'sub': '0', 'a first light source that outputs resonance light λof a middle-infrared wavelength region or a THz wavelength region;'}{'sub': '1', 'a second light source that outputs first control light λof a visible wavelength region or a near-infrared wavelength region;'}{'sub': '2', 'a third light source that outputs second control light λof a visible wavelength region or a near-infrared wavelength region;'}{'sub': '0', 'a pair of high reflective mirrors whose resonator length is set to (½)×−(wavelength of the resonance light λ×integer);'}{'sub': 1', '2, 'a photodetector that monitors transmitted light of the first control light λand second control light λtransmitted from the mirror pair;'}an integrator that captures and integrates two signals detected by the photodetector;a resonator length control unit that controls the resonator length of the mirror pair; anda driver that applies, to the resonator length control unit, a voltage that is calculated by capturing an output signal from the integrator and performing a feedback operation in such a way as ...

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Номер записи: 71
26-09-2013 дата публикации

DIGITAL PHOTOMULTIPLIER DETECTOR CELL

Номер: US20130248720A1
Автор: BURM Jin-wook, KIM Kyung-Hoon, KIM Young, LEE Chae-hun, LEE Jun-an, PARK Jae-chul, YOON Dae-kun
Принадлежит:

According to example embodiments, a photomultiplier detector cell for tomography includes a detector unit and a readOUT unit. The detector unit is configured to generate a digitized detect signal in response to receives light having a certain range of wavelength. The readOUT unit is configured to generate an output signal corresponding to the detect signal generated by the detector unit and to transmit the output signal to an external circuit. The readOUT unit is configured to transmit the output signal to the external circuit right after the detect signal is received. 1. A photomultiplier detector cell for tomography , comprising:a detector unit that is configured to generate a digitized detect signal in response to receiving light having a certain range of wavelength; and the readOUT unit being configured to generate an output signal corresponding to the detect signal generated by the detector unit and to transmit the output signal to an external circuit, and', 'the readOUT unit being configured to transmits the output signal to the external circuit right after receiving the detect signal., 'a readOUT unit,'}2. The photomultiplier detector cell of claim 1 , wherein the readOUT unit is not configured to store the detect signal in the photomultiplier detector cell.3. The photomultiplier detector cell of claim 1 , whereinthe detector unit includes a photomultiplier, andthe photomultiplier includes a silicon device.4. The photomultiplier detector cell of claim 1 , wherein the detector unit includes:a photo diode that is configured to generate a current to flow in response to the light having the certain range of wavelength; andan active reset unit that is connected to a cathode of the photo diode, whereinthe active reset unit being configured to increase a voltage difference between the cathode and an anode of the photo diode.5. The photomultiplier detector cell of claim 4 , whereinthe detector unit further includes a passive quenching unit that is connected to the ...

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Номер записи: 72
26-09-2013 дата публикации

Method and System for Simulating/Emulating Vision Via Intraocular Devices or Lenses prior to Surgery

Номер: US20130250245A1
Автор: Luque Sergio Oscar, Ramo Jaume Pujol
Принадлежит:

A method and system for simulating/emulating vision using intraocular devices or lenses prior to surgery, preferably using multifocal and monofocal intraocular lenses. The invention allows the patient, prior to surgery, to compare the differences in the perception of an image as seen with the intraocular lens and with normal vision, determining which type of lens the patient prefers, and in turn allows the ophthalmologist to measure which provides the better visual performance. The invention comprises a system containing the intraocular lens, called an artificial eye, a lens for transporting the image from the intraocular lens and eliminating the blur introduced by the artificial eye, and at least one telescope or optometer which transports the intermediate image from the intraocular lens onto the patient's pupil. In this manner, the patient is shown how he/she would see after surgery with each type of lens proposed by the ophthalmologist. 1. System for simulating/emulating vision using intraocular devices or lenses prior to surgery , comprising a system containing the intraocular lens , called an artificial eye , a lens for transporting the image from the intraocular lens and eliminating the blur introduced by the artificial eye , and comprising at least one telescope or optometer that transports the intermediate image from the intraocular lens onto the patient's pupil.2. System for simulating/emulating vision using intraocular devices or lenses prior to surgery according to claim 1 , wherein the telescope or optometer for correcting possible blurring caused by visual defects has two lenses and two mirrors that can be moved manually or by a motor.3. System for simulating/emulating vision using intraocular devices or lenses prior to surgery according to claim 2 , wherein the artificial eye has a lens and a window that forms a watertight compartment where the intraocular lens is enclosed claim 2 , immersed in an aqueous medium claim 2 , preferably physiological ...

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Номер записи: 73
03-10-2013 дата публикации

Providing image data

Номер: US20130256503A1
Автор: Andrew Maiden
Принадлежит: Phase Focus Ltd

Embodiments of the present invention provide a method of providing image data for constructing an image of a region of a target object ( 40 ) comprising providing incident radiation from a radiation source at a target object ( 40 );detecting, by at least one detector ( 50 ), a portion of radiation scattered by the target object; and providing image data via an iterative process responsive to the detected radiation ( 340 ), wherein said iterative process comprises estimating a wave front of scattered radiation at a plane of the detector, updating a portion of the wave front based on the detected radiation, leaving a portion of the estimated wave front substantially unchanged, setting a portion of the wave front, corresponding to a portion of radiation scattered by the target object and not detected by the detector, to one or more values, and providing image data based upon the updated wave front.

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Номер записи: 74
03-10-2013 дата публикации

PHOTODETECTOR CIRCUIT

Номер: US20130256507A1
Автор: Nagata Yasunori, Tabuchi Yoshihisa
Принадлежит: SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC

Light from a photodiode is detected using a phototransistor. At the time of startup, set data concerning a detected current is received at a communication interface, and the received set data is compared with the detected current. A control unit adjusts a current of the phototransistor so that the detected current matches the set data. 1. A photodetector circuit for detecting light from a photodiode using a phototransistor , comprising:a communication circuit that receives, at a time of startup, set data concerning a detected current; anda control unit that compares the set data received by the communication circuit with the detected current, and adjusts a current of the phototransistor so that the detected current matches the set data,wherein the control unit performs control at the time of startup so that the current that flows through the phototransistor matches the set data.2. The photodetector circuit according to claim 1 , wherein claim 1 , when the set data and the detected current differ from each other claim 1 , the control unit repeatedly changes the current that flows through the phototransistor by a preset step value claim 1 , and thereby adjusts the current of the phototransistor so that the detected current matches the set data.3. The photodetector circuit according to claim 1 , wherein claim 1 , when the set data and the detected current differ from each other claim 1 , the control unit changes the current that flows through the phototransistor based on a difference between the set data and the detected current claim 1 , and thereby adjusts the current of the phototransistor so that the detected current matches the set data. The present invention relates to a photodetector circuit for detecting light from a photodiode using a phototransistor.Conventionally, various cameras are provided with a vibration compensation function. The vibration compensation is achieved by moving the lens in accordance with camera movement to thereby obtain an image in which ...

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Номер записи: 75
03-10-2013 дата публикации

PHOTOELECTRIC CONVERSION DEVICE

Номер: US20130256508A1
Автор: Fujii Masahiro, JAHANA Tadashi, Kawata Seiji, Nakamura Junichi, Sawano Hiroyuki
Принадлежит: RENESAS ELECTRONICS CORPORATION

A photoelectric conversion device is provided that has high linearity of output current to illuminance and is applicable to illumination sensors. The photoelectric conversion device outputs appropriate current by complementing first current, which is generated in response to incident light, with complementary current. The complementary current is generated based on second current flowing in response to the light. The second current is generated by a device having the same element area as that of a device that generates the first current. When the second current flows, the complementary current is generated based on a direction of the second current and is then added to the first current. 1. A photoelectric conversion device comprising:a first photoelectric conversion block that generates a first carrier in response to light emitted thereon;a first wire that is coupled with the first photoelectric conversion block and through which first current generated with the first carrier flows;a complementary current supply block that generates complementary current to complement the first current; andan output node that outputs current obtained by combining the first current and the complementary current, a second photoelectric conversion block that has the same element area as that of the first photoelectric conversion block and generates a second carrier in response to the light emitted thereon;', 'a second wire that is coupled with the second photoelectric conversion block and through which second current generated with the second carrier flows; and', 'a complementary current generation circuit that is coupled with the second wire and generates the complementary current based on the second current,, 'wherein the complementary current supply block includeswherein the first wire is coupled with the output node and the first photoelectric conversion block,wherein the second wire is coupled with the complementary current generation circuit and the second photoelectric ...

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Номер записи: 76
03-10-2013 дата публикации

OPTICAL SENSOR AND OUTPUT CIRCUIT THEREOF

Номер: US20130256513A1
Автор: Kitade Tetsuya
Принадлежит: ROHM CO., LTD.

An optical sensor is provided according to an embodiment of the present disclosure. The optical sensor includes a first photodiode, a second photodiode having characteristics different from characteristics of the first photodiode, filters configured to block or transmit a specific wavelength range of the light, and an output circuit configured to correct a sensitivity deviation, which may be caused when one of the filters is used for the first photodiode, based on a sensitivity deviation, which may be caused when the other filter of the same kind as the one filter is used for the second photodiode, and output only the specific wavelength range of the light. 1. An optical sensor comprising:a first photodiode;a second photodiode having characteristics different from characteristics of the first photodiode;filters configured to block or transmit a specific wavelength range of light; andan output circuit configured to correct a first sensitivity deviation, which may be caused when a first filter of the filters is used for the first photodiode, based on a second sensitivity deviation, which may be caused when a second filter of the filters, the second filter being the same kind as the first filter, is used for the second photodiode, and output the specific wavelength range of the light.2. An optical sensor comprising:a first photodiode;a second photodiode having characteristics different from characteristics of the first photodiode;first and second cut filters configured to block a specific wavelength range of the light;a third photodiode configured to include the same configuration as the first photodiode, the third photodiode further configured to include the first cut filter formed on a light receiving surface of the third photodiode;a fourth photodiode configured to include the same configuration as the second photodiode, the fourth photodiode further configured to include the second cut filter formed on a light receiving surface of the fourth photodiode; andan ...

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Номер записи: 77
03-10-2013 дата публикации

DYNAMIC FIELD MONITORING SYSTEM IN INTENSITY MODULATED RADIOTHERAPY BEAMS

Номер: US20130258105A1
Автор: Jozsef Gabor
Принадлежит: New York University

Systems and method for monitoring an actual shape of a radiation therapy beam. The radiation therapy beam passes through a scintillation sheet. A light field emitted by the scintillation sheet is captured by a camera. Image data captured by the camera is processed to generate a processed image of the actual shape of the radiation therapy beam. The processed image of the actual shape of the radiation therapy beam may be compared to a programmed shape of the radiation therapy beam. 1. A method for monitoring an actual shape of a radiation beam during a modulated radiotherapy session , the method comprising:applying, by a treatment machine, the radiation beam to a scintillation sheet;capturing, by a camera, an image of a scintillating light field on the scintillation sheet;transmitting the image to a processing circuit;performing, by the processing circuit, image processing on the image; andgenerating a processed image of the actual shape of the radiation beam.2. The method of wherein the image processing comprises:correcting, by the processing circuit, a shape of the image transmitted by the camera;correcting, by the processing circuit, an intensity of the image transmitted by the camera; andperforming, by the processing circuit, an image segmentation of the image transmitted by the camera.3. The method of further comprising generating display data configured to display the processed image on a user interface.4. The method of claim 3 , wherein displaying processed image on the user interface is done in substantially real time providing a continuous image of the radiation beam shape.5. The method of further comprising generating display data configured to display a programmed shape of the radiation beam on the user interface.6. The method of further comprising:comparing the processed image of the actual shape and the programmed shape of the radiation beam;calculating a discrepancy between the processed image of the actual shape and the programmed shape of the radiation ...

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Номер записи: 78
10-10-2013 дата публикации

LIGHT DISTRIBUTION CHARACTERISTIC MEASUREMENT APPARATUS AND LIGHT DISTRIBUTION CHARACTERISTIC MEASUREMENT METHOD

Номер: US20130265570A1
Автор: ENAMI Yoshi
Принадлежит: Otsuka Electronics Co., Ltd.

A light distribution characteristic measurement apparatus for measuring the light distribution characteristic of a light source is provided. The apparatus includes a plurality of detectors arranged so that they have a predetermined relative relationship with each other. One detector has a detection range at least partially overlapping a detection range of another detector adjacent to the former detector. The apparatus further includes a drive unit that drives a plurality of detectors as one unit to update a positional relationship of the plurality of detectors relative to the light source, and a calculation unit that calculates the light distribution characteristic of the light source by performing a process depending on at least one of a relative relationship between a plurality of detectors and overlapping of respective detection ranges thereof, based on respective results of detection that have been acquired by the plurality of detectors at the same timing. 1. A light distribution characteristic measurement apparatus for measuring a light distribution characteristic of a light source , comprising:a plurality of detectors arranged so that said detectors have a predetermined relative relationship with each other, one detector having a detection range at least partially overlapping a detection range of another detector adjacent to said one detector;a drive unit configured to drive said plurality of detectors as one unit to update a positional relationship of said plurality of detectors relative to said light source; anda calculation unit configured to calculate the light distribution characteristic of said light source by performing a process depending on at least one of the relative relationship between said plurality of detectors and overlapping of respective detection ranges of said plurality of detectors, based on respective results of detection that have been acquired by said plurality of detectors at the same timing.2. The light distribution characteristic ...

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Номер записи: 79
17-10-2013 дата публикации

Multiple Optical-Axis Photoelectric Sensor

Номер: US20130270423A1
Автор: Ishikawa Daishiro, Kawabata Shinji
Принадлежит: KEYENCE CORPORATION

A demand for downsizing of a multiple optical-axis photoelectric sensor can be coped with, and various state displays are performed. 1. A multiple optical-axis photoelectric sensor , which is provided with a longitudinally extending detection surface of an elongated case and arrayed with a plurality of optical axes at regular intervals in agreement with the longitudinally extending detection surface , the sensor comprising:an inter-optical-axis indication unit provided between two adjacent optical axes; anda display controlling unit configured to cause the inter-optical-axis indication unit to display at least one piece of information out of a control input state, a safe special function state, a synchronization type, and an interlock state.2. The multiple optical-axis photoelectric sensor according to claim 1 , wherein the inter-optical-axis indication unit further displays an error type.3. The multiple optical-axis photoelectric sensor according to claim 2 , wherein the inter-optical-axis indication unit includesindicators capable of performing switch-displays of at least two pieces of information out of a control input state, a safe special function state, a synchronization type, and an error type,a safe output indicator lamp configured to display a safe output state of the multiple optical-axis photoelectric sensor, andan interlock indicator lamp configured to display the interlock state.4. The multiple optical-axis photoelectric sensor according to claim 1 , further comprising a plurality of light entrance/light interception indicators claim 1 , which are arrayed along a row of the optical axes of the multiple optical-axis photoelectric sensor and which display states of light entrance/light interception of the optical axis.5. The multiple optical-axis photoelectric sensor according to claim 4 , whereina row of the plurality of light entrance/light interception indicators is arranged on the row of the optical axes, andeach of the light entrance/light ...

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Номер записи: 80
17-10-2013 дата публикации

Lithographic Method and Apparatus

Номер: US20130271636A1
Автор: BASELMANS Johannes Jacobus Matheus
Принадлежит: ASML Netherlands B.V.

A method and apparatus are provided for determining apodization properties of a projection system in a lithographic apparatus. The method comprises allowing light from a given point in an illumination field to pass through the projection system along at least three different optical paths, and then determining the difference in the intensity of light received in a projection field from the two different optical paths, and calculating apodization properties of the projection system from the intensity difference. It is not necessary to know the intensity distribution in the illumination field. To provide the different optical paths a pinhole reticle provided with wedges of different orientations is used. 1. A method of determining apodization properties of an optical system comprising an illumination system and a projection system , the method comprising:allowing light from a given point in an illumination field to pass through the projection system along at least a first optical path, a second optical path and a third optical path,determining a first difference in intensity of light received in a projection field from the first optical path and the second optical path,determining a second difference in intensity of light received in the projection field from the first optical path and the third optical path, andcalculating apodization properties of the projection system from the first difference in intensity of light and the second difference in intensity of light.2. The method of claim 1 , wherein light is allowed to pass through the projection system from a plurality of points disposed in a first direction perpendicular to the optical axis of the system.3. The method of claim 1 , wherein the at least first optical path claim 1 , second optical path and third optical path are created by interposing optical elements between the illumination system and the projection system.4. The method of claim 3 , wherein the optical elements comprise optical wedges with different ...

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Номер записи: 81
17-10-2013 дата публикации

RADIATION DETECTION

Номер: US20130275087A1
Автор: Radley Ian, Scott Paul
Принадлежит: Kromek Limited

A method of and device for processing a radiation pulse are described based on: detecting an event at the detector; producing a pulse; determining for the pulse: a pulse height measurement representative of pulse magnitude; a pulse width measurement representative of pulse duration; assigning the pulse to one of at least two classes based on the determined pulse height/pulse width; applying to each pulse an algorithm specific to its particular class to produce an output pulse height/pulse width profile. 1. A method of processing of detected radiation data from a semiconductor detector device comprising the steps of;detecting an event at the detector;producing a pulse; a pulse height measurement representative of pulse magnitude; and', 'a pulse width measurement representative of pulse duration;, 'determining for the pulseassigning the pulse to one of at least two classes based on the determined pulse height/pulse width;applying to each pulse an algorithm specific to its particular class to produce an output pulse height/pulse width profile.2. A method in accordance with further comprising the step of using the output pulse height and/or width so produced for further processing.3. A method in accordance with wherein the at least two classes are defined by defining bounding conditions around regions in pulse height/pulse width space.4. A method in accordance with wherein pulses are assigned as follows:(i) a first class if the pulse height/pulse width is within a threshold range of a first notional bounding condition of pulse height/pulse width values;(ii) subject to (iii) below, a second class if the pulse height/pulse width is outside the threshold range;(iii) optionally, a third class if a pulse height/pulse width otherwise in compliance with (ii) above fails to meet an acceptance criterion; (a) if the pulse is assigned to the first class, applying a first algorithm to produce an output pulse height/pulse width profile, and using the pulse height and/or width so ...

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Номер записи: 82
24-10-2013 дата публикации

UNIT CELLS WITH AVALANCHE PHOTODIODE DETECTORS

Номер: US20130277561A1
Автор: Schlesselmann John D., Woolaway James T.
Принадлежит:

Various techniques are disclosed for providing reference signals to image detectors in accordance with one or more embodiments of the invention. For example, in one or more embodiments, switched capacitors may be used to provide bias voltages to individual unit cells of a focal plane array such that the bias voltages are held by the unit cells over one or more integration periods while the unit cells are decoupled from an input line. As a result, the bias voltages may be free from noise incident on the input line and thus may more accurately bias the individual unit cells. 1. A unit cell of a focal plane array , the unit cell comprising:a detector comprising an avalanche photodiode adapted to provide a detector signal in response to infrared light received by the detector;a first capacitor adapted to store a bias voltage while additional bias voltages are loaded into other unit cells of the focal plane array;a first switch adapted to connect the first capacitor to an input line to provide the bias voltage from the input line to the first capacitor and disconnect the first capacitor from the input line after the bias voltage is provided;a second capacitor adapted to store the bias voltage during at least one integration period of the focal plane array;a second switch adapted to provide the bias voltage from the first capacitor to the second capacitor prior to the at least one integration period; andan output node adapted to store an output voltage that changes in response to the detector signal and the bias voltage stored by the second capacitor.2. The unit cell of claim 1 , wherein the second switch is adapted to operate substantially simultaneously with other second switches of the other unit cells which provide bias voltages from first capacitors of the other unit cells to second capacitors of the other unit cells.3. The unit cell of claim 1 , wherein the second capacitor is adapted to store the bias voltage during a plurality of integration periods of the focal ...

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Номер записи: 83
24-10-2013 дата публикации

DETECTOR OF SINGLE MICROWAVE PHOTONS PROPAGATING IN A GUIDE

Номер: US20130281302A1
Автор: Möttönen Mikko, Pekola Jukka
Принадлежит: Aalto-Korkeakoulusäätiö

The present invention introduces a detector that is able to detect single microwave photons propagating in a waveguide. The waveguide of the invention is lowered to a temperature where it becomes superconductive. Disposed between a middle wire and a ground plane of the waveguide is a very small piece of a desired normal metal, whereby so-called SN contacts are formed between these materials. A separate reflection measurement circuit is coupled to the normal metal piece. When the impedance of the waveguide is matched to the impedance of the normal metal piece as well as possible, a photon propagating in the waveguide is most likely absorbed in the normal metal. The absorption slightly raises the temperature of the piece, which further changes the impedance observed in a so-called SIN junction between the reflection measurement circuit and the piece. The changed amplitude and phase are detectable at the outlet obtained from a mixer of the reflection measurement circuit, whereby a single absorbed photon can be detected. In principle, the present method and device enable quantum calculation in view of future applications. 110. A method for detecting single microwave photons in a metallic waveguide () , the method comprising the step:{'b': '10', 'creating at least one microwave photon in the waveguide () disposed in a superconductive state;'} [{'b': 10', '11, 'directing at least one microwave photon from the waveguide () to a resistive element () in a manner as free of losses as possible; and'}, {'b': 18', '11', '18', '11, 'measuring, by a reflection measurement circuit (), a change of impedance in a junction between the resistive element () and the reflection measurement circuit () due to heating of the resistive element ().'}], 'characterized in that the method further comprises the steps2. The method according to claim 1 , characterized in that the method further comprises the step:{'b': 10', '11', '10', '10', '10, 'i': b', 'b', 'a, 'matching the impedance of the ...

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Номер записи: 84
31-10-2013 дата публикации

METHOD AND SYSTEM FOR A FEEDBACK TRANSIMPEDANCE AMPLIFIER WITH SUB-40KHZ LOW-FREQUENCY CUTOFF

Номер: US20130284903A1
Автор: Welch Brian
Принадлежит:

A system for a feedback transimpedance amplifier with sub-40 khz low-frequency cutoff is disclosed and may include amplifying electrical signals received via coupling capacitors utilizing a transimpedance amplifier (TIA) having feedback paths comprising source followers and feedback resistors. Gate terminals of the source followers mey be coupled to output terminals of the TIA. The feedback paths may be coupled prior to the coupling capacitors at inputs of the TIA. Voltages may be level shifted prior to the coupling capacitors to ensure stable bias conditions for the TIA. The TIA may be integrated in a CMOS photonics chip and the source followers may comprise CMOS transistors. The TIA may receive current-mode logic or voltage signals. The electrical signals may be received from a photodetector, which may comprise a silicon germanium photodiode differentially coupled to the TIA. Optical signals for the photodetector in the CMOS photonics chip may be received via optical fibers. 122-. (canceled)23. A system for processing electrical signals , the system comprising:a transimpedance amplifier circuit having coupling capacitors, a transimpedance amplifier, and feedback paths comprising source followers and feedback resistors, said feedback paths being coupled prior to said coupling capacitors at inputs of said transimpedance amplifier, said transimpedance amplifier amplifying electrical signals received via said coupling capacitors, and gate terminals of said source followers being coupled to output terminals of said transimpedance amplifier.24. The system according to claim 23 , wherein said source followers are operable to level shift voltages prior to said coupling capacitors to ensure stable bias conditions for said transimpedance amplifier circuit.25. The system according to claim 23 , wherein said transimpedance amplifier circuit is integrated in a complementary metal-oxide semiconductor (CMOS) chip.26. The system according to claim 25 , wherein said CMOS chip ...

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Номер записи: 85
31-10-2013 дата публикации

METHOD AND APPARATUS FOR MEASURING A PROPERTY OF AN EYE OF A SUBJECT

Номер: US20130286352A1
Автор: Carden David, Murray Ian
Принадлежит: THE UNIVERSITY OF MANCHESTER

According to a first aspect of the present invention, there is provided a method of measuring a property of an eye of a subject using an apparatus which is: arranged to provide a bleaching light, a background light ostensibly invisible to rods (e.g. substantially red, and/or having or being a wavelength greater than 580 nm) and a target light ostensibly visible to rods (e.g. substantially green, and/or having or being a wavelength less than 580 nm and greater than 400 nm, e.g. around 514 nm+/−50 nm), the background light and/or target light (together) being suitable for rod-dominated stimulation, the background light and target light being superimposable upon one another, and the target light being presentable to the subject such that the target light is incident on a parafoveal region of the subject's retina; the method comprising: a) stimulating the subject's retina with a low level bleach using the bleaching light; b) after the bleach has been undertaken, modulating a target light at an initial luminance at which modulation of the target light is not perceivable by the subject, whilst a background light remains substantially constant; c) increasing the luminance of the modulated target light; d) receiving an input from the subject when modulation of the target light is perceivable by the subject, thus indicating a rod-related threshold; e) after said input, decreasing the luminance of the modulated target light; and f) repeating parts c) to e) of the method to determine a series of rod-related thresholds over a period of time. 1. A method of measuring a property of an eye of a subject using an apparatus which is:arranged to provide a bleaching light, a background light ostensibly invisible to rods and a target light ostensibly visible to rods, the background light and target light together being suitable for rod-dominated stimulation, the background light and target light being superimposable upon one another, and the target light being presentable to the subject ...

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Номер записи: 86
07-11-2013 дата публикации

Light determination circuit

Номер: US20130292552A1
Автор: Meng-Chien Chiang, Yuan-Chih Huang
Принадлежит: Sercomm Corp

A light determination circuit having a laser module and a detection circuit is provided. The detection circuit comprises a threshold voltage determination unit, a comparison unit and a switch unit. The threshold voltage determination unit determines a threshold voltage corresponding to the laser module. The comparison unit is for comparing a voltage level at a first node of the laser module with the threshold voltage to output a switch signal. The switch unit is controlled by the switch signal to switch the voltage level at an output end of the detection circuit. When the laser module is conducted, the voltage level at the first node is lower than the threshold voltage, the switch signal controls the switch unit, such that the output end outputs a high level voltage and vice versa.

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Номер записи: 87
14-11-2013 дата публикации

DISCRIMINATING PHOTO COUNTS AND DARK COUNTS IN AN AVALANCHE PHOTODIODE OUTPUT

Номер: US20130299673A1
Автор: HUNTINGTON Andrew S., WILLIAMS George M.
Принадлежит:

The output of an avalanche photodiode (APD) comprises a “photocurrent” component comprising photon initiated events resulting from the interaction of photons with the APD and a “dark current” component comprising dark carrier events arising in the APD even when the APD is not exposed to light. Differences in the pulse height distributions of photon initiated events and dark carrier initiated events are used to statistically discriminate between photocurrent and dark current components of APD output. 1. A method of distinguishing a photon induced pulse emitted by a photodiode from a dark pulse emitted by said photodiode absent photon interaction , plural photon induced pulses emitted by said photodiode having a first pulse height distribution and plural dark pulses having a second pulse height distribution , said method comprising the step of designating a pulse having a measured parameter greater than a threshold measurement of said parameter as a photon induced pulse , said threshold selected to maximize a difference between said first pulse height distribution and said second pulse height distribution.2. The method of distinguishing a photon induced pulse of wherein said measured parameter is a voltage.3. The method of distinguishing a photon induced pulse of further comprising the step of changing said threshold in response to a change in a bias applied to said photodiode.4. The method of distinguishing a photon induced pulse of further comprising the step of changing said threshold in response to a change of a temperature of said photodiode.5. The method of distinguishing a photon induced pulse of wherein the step of designating a pulse having a measured parameter greater than a threshold measurement of said parameter as a photon induced pulse comprises the steps of:(a) measuring said parameter for each of a plurality of pulses; and(b) designating said plurality of pulses as photon induced if a central tendency of said measurements of said parameter for said ...

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Номер записи: 88
14-11-2013 дата публикации

Systems and methods for simulated preview for preferred image exposure

Номер: US20130300894A1
Автор: Eric Riggert, Francisco Imai, Neil Y. Iwamoto
Принадлежит: Canon Inc

Systems and methods for simulating an image exposure capture a first set of images of a scene; and generate a flash preview image based on the first set of images, an estimated scene spectral reflectance, an estimated spectral power distribution of the scene, and one or more flash device settings, wherein the flash preview image approximates a brightness and a color appearance of a final image of the scene captured while the scene is illuminated by a flash device according to the one or more flash device settings

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Номер записи: 89
14-11-2013 дата публикации

Light Therapy Monitoring

Номер: US20130301034A1
Автор: Hayes Thomas C., Olds Jacqueline, Russell Kasey J., Schwartz Richard S.
Принадлежит:

A light-monitoring apparatus includes a power source, a light detector, a computer processor coupled with the power source and in communication with the light detector and configured to receive and record light exposure detected by the light detector, an output device coupled with the computer processor, and a computer-readable medium coupled with the computer processor and storing instruction code for summing the recorded light exposure from the computer processor over time and communicating a signal to the output device to generate and communicate a signal indicating that a cumulative threshold light exposure for achieving a health benefit has been reached. The apparatus can accordingly be used by an individual to monitor cumulative light exposure from both natural and artificial sources, e.g., in the treatment of seasonal or non-seasonal depression. 1. A method for monitoring light exposure , comprising:wearing an integrative light monitor including a light detector;receiving and recording light exposure received from a first light source with the integrative light monitor;receiving and recording light exposure received from a second light source with the integrative light monitor;integrating the recorded light exposure from the first light source and from the second light source to produce a cumulative luminous exposure value;comparing the cumulative luminous exposure value with an established luminous- exposure target for achieving a health benefit; andproviding an indication of the cumulative luminous exposure value in comparison with the established luminous-exposure target.2. The method of claim 1 , wherein the integrative light monitor is worn on the wearer's clothing claim 1 , eyeglasses claim 1 , or body and is frontward facing.3. The method of claim 1 , further comprising transmitting the luminous exposure value from the integrative light monitor to an external processor.4. The method of claim 3 , wherein the luminous-exposure target is in the range of ...

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Номер записи: 90
14-11-2013 дата публикации

Luminous intensity test device

Номер: US20130301039A1
Автор: Chun-Yan YANG, Jiang-Feng Shan, Na-Na ZHAI, Qiao-Na SHENG, Xiao-Jun CHEN, Yu-Cui Zhou
Принадлежит: Futaihua Industry Shenzhen Co Ltd, Hon Hai Precision Industry Co Ltd

A luminous intensity test device includes an optical frequency converter, a display, and a processor. The optical frequency converter selectively converts at least a portion of light emitted by a light source into a digital signal. The display displays a color selection interface. The processor processes the digital signal and obtains the luminous intensity. When a tester inputs a color parameter into the color selection interface via an input device, the optical frequency converter converts a kind of light to the digital signal and then the processor processes the digital signal to obtain a luminous intensity and display the luminous intensity on the display.

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Номер записи: 91
14-11-2013 дата публикации

OPTICAL ANALYSIS METHOD AND OPTICAL ANALYSIS DEVICE USING THE DETECTION OF LIGHT FROM A SINGLE LIGHT-EMITTING PARTICLE

Номер: US20130302906A1
Автор: Tanabe Tetsuya
Принадлежит: OLYMPUS CORPORATION

In the scanning molecule counting method using the light measurement with a confocal microscope or a multiphoton microscope, a measuring time is optimized with suppressing the scattering in a result small irrespective of light-emitting particle concentrations. In the inventive technique of detecting and analyzing the light from an light-emitting particle, there are repeated processes of detecting the light intensity from a light detection region with moving the position of the light detection region of an optical system in a sample solution by changing the optical path of the optical system of the microscope, and detecting the signals of the light of light-emitting particles individually, and based on the time taken for the number of the signals from the light-emitting particles to reach a predetermined number, the light-emitting particle concentration in the sample solution is determined. 1. A method of detecting and analyzing light from a light-emitting particle dispersed and moving at random in a sample solution using an optical system of a confocal microscope or a multiphoton microscope , comprising: repeating(a) moving a position of a light detection region of the optical system in the sample solution by changing an optical path of the optical system;(b) detecting light from the light detection region with moving the position of the light detection region in the sample solution; and(c) detecting step of detecting a signal from each light-emitting particle individually from the detected light;until the number of the signals from the light-emitting particles reaches to a predetermined number; and determining a concentration of the light-emitting particle in the sample solution based on a time taken for the number of the signals from the light-emitting particles to reaches the predetermined number.2. The method of claim 1 , repeating the steps (a) claim 1 , (b) and (c) every predetermined interval in a period until the number of the signals from the light-emitting ...

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Номер записи: 92
14-11-2013 дата публикации

SPEED AND DISTANCE ESTIMATION TEST DEVICE

Номер: US20130303938A1
Автор: Aydin Gulcer, Sulo Remzi
Принадлежит: COSKUNOZ HOLDING ANONIM SIRKETI

The present invention relates to a test device which is designed for measuring the caution and intuitional capability of the individuals, by providing the individual to make an estimate about the position of the stimulus (U) at a certain time after the visual stimulus (U) disappears from the screen () and after the stimulus continues the movement thereof in an invisible manner. 1. A test device which is designed for measuring the caution and intuitional capability of the individuals , by providing the individual to make an estimate about the position of the stimulus at a certain time after the visual stimulus disappears from the screen and after the stimulus continues the movement thereof in an invisible manner , characterized by comprising:an operating system,at least one input unit with a key pad thereon, in order to provide the data entry to the operating system,an image source which is related to the operating system and which comprises at least one path, at least one stimulus and at least one station which are different from each other,at least one data source which is related to the operating system, which comprises the data therein which is entered by means of the input unit and which comprises the test data to be applied,at least one record unit which is related to the operating system and which keeps the answers given by the individuals during the test,at least one screen which is related to the operating system, which displays said paths, the stimulus and the station and which provides the individuals to realize the selections thereof and which is a touch-screen,a button which is related to the operating system and which provides the individuals to realize the estimation thereof when the individuals think that the stimulus reaches the desired station according to the movement of the stimulus during the test,at least one timer which is related to the operating system and which measures the beginning, finishing and process duration for each process on the ...

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Номер записи: 93
21-11-2013 дата публикации

VARIABLE-WAVELENGTH INTERFERENCE FILTER, OPTICAL FILTER DEVICE, OPTICAL MODULE AND ELECTRONIC APPARATUS

Номер: US20130306838A1
Автор: Matsushita Tomonori
Принадлежит: SEIKO EPSON CORPORATION

A variable-wavelength interference filter includes: a first substrate; a second substrate facing the first substrate; a first reflection layer provided on a surface facing the second substrate, of the first substrate; a second reflection layer which is provided on a surface facing the first substrate, of the second substrate, and faces the first reflection layer via an inter-layer gap; and an electrostatic actuator which flexes the second substrate in a direction toward the first substrate and thus changes the inter-layer gap. The first reflection layer and the second reflection layer have a reflectance characteristic showing a higher reflectance to light with a second wavelength that is shorter than a first wavelength, than a reflectance to light with the first wavelength. 1. A variable-wavelength interference filter comprising:a first substrate;a second substrate opposed to the first substrate;a first reflection layer on the first substrate;a second reflection layer on the second substrate, and opposed to the first reflection layer across a gap; anda gap changing portion which flexes the second substrate in a direction toward the first substrate and thus changes the gap between the first reflection layer and the second reflection layer;wherein the first reflection layer and the second reflection layer have a reflectance characteristic showing a higher reflectance to light with a second wavelength that is shorter than a first wavelength, than a reflectance to light with the first wavelength.2. The variable-wavelength interference filter according to claim 1 ,wherein the first reflection layer and the second reflection layer are made of AlAs.3. The variable-wavelength interference filter according to claim 1 ,wherein the first wavelength is 700 nm and the second wavelength is 400 nm.4. The variable-wavelength interference filter according to claim 1 ,wherein the first wavelength is 2500 nm and the second wavelength is 700 nm.5. The variable-wavelength interference ...

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Номер записи: 94
21-11-2013 дата публикации

PHOTODETECTOR

Номер: US20130306839A1
Автор: ARAYA Akinori, KUWABARA Yohei, Sasaki Kunihiko
Принадлежит:

Provided is a photodetector including a light receiving portion that accumulates and outputs the amount of received observation light as electric charges; an offset portion that adds an offset signal to an output signal from the light receiving portion; an AD conversion portion that AD-converts the sum of the output signal and the offset signal obtained by the offset portion; a control unit that controls the AD conversion portion such that it A-D converts said sum when the light receiving portion is charged and discharged; and an offset correcting portion that corrects the offset signal by adjusting the value of the offset signal contained in the black level value such that the black level value obtained by the AD conversion portion from said sum when the capacitor is discharged becomes equal to a predetermined target value. 1. A photodetector provided in a laser scanning microscope that scans a laser beam across a specimen to detect observation light generated in the specimen and that obtains an image of the specimen in which the intensity of the observation light is associated with the scanning position of the laser beam , the photodetector comprising:a light receiving portion including a photoelectric conversion element that receives the observation light and outputs signal charges in an amount corresponding to the amount of received observation light, an integrator circuit that accumulates the signal charges output from the photoelectric conversion element in a capacitor to integrate the signal charges, and a switching portion that switches between charging and discharging of the capacitor with the signal charges;an offset portion that adds an offset signal to an output signal from the light receiving portion;an AD conversion portion that converts the sum of the output signal and the offset signal obtained by the offset portion into a digital value;a control unit that controls the operation timing of the AD conversion portion to make the AD conversion portion ...

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Номер записи: 95
28-11-2013 дата публикации

ARRANGEMENT AND METHOD FOR DETECTING AND INDICATING LASER RADIATION

Номер: US20130313407A1
Автор: BUSAM Daniel, Weber Andreas
Принадлежит:

The invention relates to an arrangement and a method for detecting and indicating laser radiation comprising a laser device () producing the laser radiation, such as rotation lasers or line lasers, and an indicating device () with at least one laser beam detector and at least one indicating element () which indicates the detected laser radiation. In order to precisely indicate the position of the laser radiation to be detected using uncomplicated circuitry, it is proposed that the at least one laser beam detector and the at least one indicating element are the same component in form of an LED (). 13622262830262830. An arrangement for detecting and indicating laser radiation , comprising a laser device () generating the laser radiation , such as rotation lasers or line lasers , and an indicating device () with at least one laser beam detector and at least one indicating element ( , , ) indicating the detected laser radiation , characterized in that the at least one laser beam detector and the at least one indicating element are the same component in form of an LED ( , , ).2. The arrangement according to claim 1 ,characterized in{'b': 22', '26', '28', '30, 'that the indicating device () comprises several LEDs (, , ) which are arranged along at least one straight line.'}3. The arrangement according to claim 2 ,characterized in{'b': 26', '28', '30, 'that the LEDs (, , ) are arranged along at least two straight lines running reciprocally parallel and are arranged reciprocally offset.'}43836. A method for detecting laser radiation () emitted from a laser device () claim 2 , such as rotation lasers or line lasers and indicating the detected laser radiation claim 2 , characterized in{'b': 26', '28', '30, 'that the same component in form of an LED (, , ) is used for detecting and indicating the laser radiation.'}5. The method according to claim 4 ,characterized in{'b': 36', '38', '26', '28', '30, 'that a laser device () is used, by means of which a pulsed or which is ...

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Номер записи: 96
28-11-2013 дата публикации

PHOTOELECTRIC CONVERSION APPARATUS

Номер: US20130313413A1
Автор: Kato Satoshi
Принадлежит: CANON KABUSHIKI KAISHA

A photoelectric conversion apparatus has: a plurality of pixels having mutually different color filters, and generating pixel signals by a photoelectric conversion; a color selecting switch for selecting the pixel signals generated by the plurality of pixels having mutually different color filters; a first amplifier circuit for amplifying at mutually different gains the pixel signals generated by the pixels having mutually different color filters and selected by the color selecting switch; a reference voltage connecting switch for selecting a reference voltage; and a second amplifier circuit for amplifying at mutually different gains the reference voltages correspondingly to the pixel signals of mutually different colors. 1. A photoelectric conversion apparatus comprising:a plurality of pixels having mutually different color filters, and generating pixel signals by a photoelectric conversion;a color selecting switch configured to select the pixel signals generated by the plurality of pixels having mutually different color filters;a first amplifier circuit configured to amplify at mutually different gains the pixel signals generated by the pixels having mutually different color filters and selected by the color selecting switch;a reference voltage connecting switch configured to select a reference voltage; anda second amplifier circuit configured to amplify at mutually different gains the reference voltages correspondingly to the pixel signals of mutually different colors.2. The photoelectric conversion apparatus according to claim 1 , whereinthe second amplifier circuit amplifies the reference voltages, at the same gains of the first amplifier circuit in amplifying the pixel signals of corresponding colors.3. The photoelectric conversion apparatus according to claim 1 , further comprisinga difference detector configured to perform a difference processing between the pixel signal amplified by the first amplifier circuit and the reference signal amplified by the ...

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Номер записи: 97
28-11-2013 дата публикации

SEMICONDUCTOR PHOTOMULTIPLIER AND READOUT METHOD

Номер: US20130313414A1
Автор: "ONeill Kevin", Jackson Carl, Pavlov Nikolai
Принадлежит:

A silicon photomultiplier device is provided. The device comprises a plurality of photosensitive cells each having a photo-detector, a quench resistive load and a first stage capacitive load. The device is arranged in a three electrode connection configuration comprising first and second electrodes arranged to operably provide a biasing of the device and a third electrode operably used to readout a signal from the device. A second stage capacitive load is operably coupled to two or more photosensitive cells 1. A semiconductor photomultiplier device comprising:a plurality of photosensitive cells each having a photo-detector, a quench resistive load and a first stage capacitive load, the device being arranged in a three electrode connection configuration comprising first and second electrodes arranged to operably provide a biasing of the device and a third electrode operably used to readout a signal from the device, anda second stage capacitive load operably coupled to two or more photosensitive cells and the third electrode.2. A device as claimed in claim 1 , wherein the first and second stage capacitive loads define a ratio in the range of 1 to 20.3. A device as claimed in claim 1 , wherein the first and second stage capacitive loads define a ratio in the range of 5 to 15.4. A device as claimed in claim 1 , wherein the first and second stage capacitive loads define a ratio substantially equal to 10.5. A device as claimed in claim 1 , further comprising a coupling node common to the first stage capacitive load of two or more photosensitive cells.6. A device as claimed in claim 5 , wherein the third electrode is operably coupled to the coupling node via the second stage capacitive load.7. A device as claimed in claim 1 , wherein two or more photosensitive cells are operably coupled together.8. A device as claimed in claim 1 , wherein a plurality of microcells are provided on the device.9. A device as claimed in claim 1 , wherein two or more of the first stage ...

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Номер записи: 98
28-11-2013 дата публикации

LIGHT EMISSION DETECTION DEVICE AND METHOD OF MANUFACTURING THE SAME

Номер: US20130313417A1
Автор: Ogusu Makoto
Принадлежит: CANON KABUSHIKI KAISHA

A light emission detection device having a flow path from which light to be detected is emitted is provided. The device includes a detection-side substrate having a joining surface and a detection surface provided opposite the joining surface, the joining surface having a depression and a light-shielding film provided over an area excluding the depression, the depression forming the flow path, the detection surface transmitting the light emitted from the flow path; and a wiring-side substrate having a joining surface and a conductive pattern provided with a varying thickness on the joining surface, the joining surface of the wiring-side substrate joining the joining surface of the detection-side substrate. In the area over which the light-shielding film is provided, adhesive is provided with a thickness corresponding to the varying thickness of the conductive pattern and the detection-side substrate and the wiring-side substrate are closely joined to each other with the adhesive. 1. A light emission detection device having a flow path from which light to be detected is emitted , the device comprising:a detection-side substrate having a joining surface and a detection surface provided opposite the joining surface, the joining surface having a depression and a light-shielding film provided over an area excluding the depression, the depression forming the flow path, the detection surface transmitting the light emitted from the flow path; anda wiring-side substrate having a joining surface and a conductive pattern provided with a varying thickness on the joining surface, the joining surface of the wiring-side substrate joining the joining surface of the detection-side substrate,wherein, in the area over which the light-shielding film is provided, adhesive is provided with a thickness corresponding to the varying thickness of the conductive pattern and the detection-side substrate and the wiring-side substrate are joined to each other with the adhesive.2. The light ...

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Номер записи: 99
28-11-2013 дата публикации

PHOTOELECTRIC CONVERSION DEVICE AND CAMERA SYSTEM

Номер: US20130314571A1
Автор: INOUE Daisuke, Kinugasa Tomohisa, Totsuka Hirofumi
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A photoelectric conversion device includes a common output line, a sensor cell unit which outputs a signal to the common output line, a transfer circuit unit which is connected to the common output line, holds a signal from the common output line in a transfer capacitor, and transfers the signal, first, second and third memory cell units each of which stores a signal from the common output line in a memory capacitor, inverts and amplifies the signal in the memory capacitor, and outputs the signal to the common output line. 1. A photoelectric conversion device comprising:a common output line;a sensor cell unit which outputs a signal photoelectrically converted by a photoelectric converter to said common output line;a transfer circuit unit which is connected to said common output line, holds a signal from said common output line in a transfer capacitor, and transfers the signal;a first memory cell unit which is connected to said common output line, stores a signal from said common output line in a first memory capacitor, inverts and amplifies the signal in said first memory capacitor, and outputs the signal to said common output line;a second memory cell unit which is connected to said common output line, stores a signal from said common output line in a second memory capacitor, inverts and amplifies the signal in said second memory capacitor, and outputs the signal to said common output line; anda third memory cell unit which is connected to said common output line, stores a signal from said common output line in a third memory capacitor, inverts and amplifies the signal in said third memory capacitor, and outputs the signal to said common output line,wherein said first memory cell unit writes, in said first memory capacitor, a reset noise signal originating from resetting of said photoelectric converter, said transfer capacitor, said first memory capacitor, said second memory capacitor, and said third memory capacitor,wherein said third memory cell unit writes, in ...

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Номер записи: 100