Patents Assigned to SensL Technologies Ltd.
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Publication number: 20180164414Abstract: A LiDAR apparatus comprising a laser source for emitting laser pulses. An SiPM detector is provided for detecting reflected photons. Optics and an aperture stop is provide. The aperture stop is provided intermediate the SiPM detector and the optics for limiting an angle of view of the SiPM detector.Type: ApplicationFiled: December 19, 2016Publication date: June 14, 2018Applicant: SensL Technologies Ltd.Inventors: Salvatore Gnecchi, John Carlton Jackson
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Publication number: 20180164412Abstract: A LiDAR apparatus is described. The apparatus comprises an eye safe laser source for emitting laser pulses. An SiPM detector is provided for detected reflected photons; and optics are also provided. The eye-safe laser source is configured such that the emitted laser pulses have a width which are selectively matched to a desired range accuracy.Type: ApplicationFiled: December 19, 2016Publication date: June 14, 2018Applicant: SensL Technologies Ltd.Inventors: Salvatore Gnecchi, John Carlton Jackson
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Publication number: 20180164410Abstract: A LiDAR apparatus is described. The apparatus comprises an eye safe laser source for emitting laser pulses. An SiPM detector is provided for detected reflected photons; and optics are also provided. The eye-safe laser source is configured such that the emitted laser pulses have a width which are selectively matched to a desired range accuracy.Type: ApplicationFiled: December 13, 2016Publication date: June 14, 2018Applicant: SensL Technologies Ltd.Inventors: Salvatore Gnecchi, John Carlton Jackson
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Publication number: 20180164413Abstract: A LiDAR apparatus comprising a laser source for emitting laser pulses. An SiPM detector is provided for detecting reflected photons. Optics and an aperture stop is provide. The aperture stop is provided intermediate the SiPM detector and the optics for limiting an angle of view of the SiPM detector.Type: ApplicationFiled: December 13, 2016Publication date: June 14, 2018Applicant: SensL Technologies Ltd.Inventors: Salvatore Gnecchi, John Carlton Jackson
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Publication number: 20180106911Abstract: Silicon photomultiplier circuitry is provided that comprises at least one silicon photomultiplier pixel, each pixel comprising a plurality of silicon photomultiplier microcells. The silicon photomultiplier circuitry comprises control circuitry adapted to maintain a substantially constant voltage on a connection node between microcells of the pixel. The control circuitry is adapted to minimise the onset and recovery time of an output signal by maintaining a substantially constant voltage on the connection node.Type: ApplicationFiled: October 5, 2017Publication date: April 19, 2018Applicant: SensL Technologies Ltd.Inventors: John Carlton Jackson, Peter Ward, Donal Cronin, Mike Quinlan
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Patent number: 9810795Abstract: Silicon photomultiplier circuitry is provided that comprises at least one silicon photomultiplier pixel, each pixel comprising a plurality of silicon photomultiplier microcells. The silicon photomultiplier circuitry comprises control circuitry adapted to maintain a substantially constant voltage on a connection node between microcells of the pixel. The control circuitry is adapted to minimize the onset and recovery time of an output signal by maintaining a substantially constant voltage on the connection node.Type: GrantFiled: August 8, 2008Date of Patent: November 7, 2017Assignee: SensL Technologies Ltd.Inventors: John Carlton Jackson, Peter Ward, Donal Cronin, Mike Quinlan
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Patent number: 9659980Abstract: The present disclosure relates to a semiconductor photomultiplier comprising a substrate; an array of photosensitive cells formed on the substrate that are operably coupled between an anode and a cathode. A set of primary bus lines are provided each being associated with a corresponding set of photosensitive cells. A secondary bus line is coupled to the set of primary bus lines. An electrical conductor is provided having a plurality of connection sites coupled to respective connection locations on the secondary bus line for providing conduction paths which have lower impedance than the secondary bus line.Type: GrantFiled: July 16, 2015Date of Patent: May 23, 2017Assignee: SenSL Technologies LTDInventors: Brian McGarvey, Stephen John Bellis, John Carlton Jackson
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Patent number: 9634156Abstract: 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.Type: GrantFiled: November 16, 2012Date of Patent: April 25, 2017Assignee: Sensl Technologies Ltd.Inventors: Nikolai Pavlov, Carl Jackson, Kevin O'Neill
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Patent number: 9437630Abstract: The present disclosure relates to photon detectors. In particular, the present disclosure relates to high sensitivity photon detectors such as semiconductor photomultipliers. A semiconductor photomultiplier is described which comprises an array of interconnected photosensitive microcells; and at least one dark count rate (DCR) suppression element associated with the array.Type: GrantFiled: May 20, 2014Date of Patent: September 6, 2016Assignee: SensL Technologies Ltd.Inventors: Liam Wall, Kevin O'Neill, John Carlton Jackson
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Patent number: 9029772Abstract: Silicon photomultiplier and readout method A silicon photomultiplier device is provided which comprises a first electrode arranged to provide a bias voltage to the device, a second electrode arranged as a ground electrode for the device, and a third electrode arranged to provide an output signal from the device using the second electrode as the output signal ground.Type: GrantFiled: March 23, 2011Date of Patent: May 12, 2015Assignee: SensL Technologies Ltd.Inventor: Nikolai Pavlov
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Publication number: 20130153774Abstract: A pixellated scintillator readout arrangement is presented, the arrangement comprising a plurality of scintillator pixels arranged in a scintillator array, and a plurality of photodetectors arranged to receive light from, or address, the scintillator pixels. The photodetectors may be arranged on both a first side and a second side of the scintillator array. Each photodetector may be arranged to leave a gap adjacent to the scintillator pixel which is addressed by that photodetector. Non-photosensitive elements such as tracking and bondpads may be arranged in at least some of the gaps. Electronic components such as electronic amplifiers may be arranged in at least some of the gaps. The photodetectors may be arranged in linear arrays addressing alternate lines of scintillator pixels on either side of the scintillator array. Each photodetector may be arranged to address a single pixel (as illustrated) or more than one pixel (not shown).Type: ApplicationFiled: March 23, 2011Publication date: June 20, 2013Applicant: SENSL TECHNOLOGIES LTD.Inventors: Patrick Joseph Hughes, John Carlton Jackson, Nikolai Pavlov, Stephen Keeney
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Publication number: 20130099100Abstract: Silicon photomultiplier and readout method A silicon photomultiplier device is provided which comprises a first electrode arranged to provide a bias voltage to the device, a second electrode arranged as a ground electrode for the device, and a third electrode arranged to provide an output signal from the device using the second electrode as the output signal ground.Type: ApplicationFiled: March 23, 2011Publication date: April 25, 2013Applicant: SENSL TECHNOLOGIES LTD.Inventor: Nikolai Pavlov
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Patent number: 8420433Abstract: A method is provided of forming a light sensing arrangement for use in a light sensor. The method comprises tiling a plurality of individual light sensing elements on a carrier, each element having a notch formed in an edge thereof, the notch being adapted to provide space, when the elements are tiled together, for an electrical connection to be made between the carrier and a surface of the element arranged to faced away from the carrier. Each element may comprise Silicon Photomultiplier (SPM) circuitry.Type: GrantFiled: July 30, 2008Date of Patent: April 16, 2013Assignee: SensL Technologies, Ltd.Inventors: John Carlton Jackson, Padraig Joseph Hughes, Peter John Ward
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Patent number: 8017900Abstract: An apparatus for photon counting is disclosed that comprises a sensor element (5) comprising a photon detector (8) and a capacitance (2) for applying a potential difference across the detector (8). The apparatus also comprises switching circuitry (6) for connecting the sensor element (5) operatively to a voltage source (4) during a refresh period to charge the capacitance (2) to achieve a predetermined potential difference across the detector (8) above a threshold value, and for substantially isolating the sensor element (5) from the voltage source (4) during a sensing period in which the charged capacitance (2) maintains a potential difference across the detector (8) above the threshold value and in which the detection of a photon by the detector (8) causes at least some of the charge on the capacitance (2) to discharge through the detector (8). The apparatus also comprises control circuitry (12) for controlling the switching circuitry (6) to initiate refresh and sensing periods in alternating sequence.Type: GrantFiled: May 26, 2006Date of Patent: September 13, 2011Assignee: SensL Technologies Ltd.Inventors: Alan Mathewson, John Carlton Jackson
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Publication number: 20100295144Abstract: A method is provided of forming a light sensing arrangement for use in a light sensor. The method comprises tiling a plurality of individual light sensing elements on a carrier, each element having a notch formed in an edge thereof, the notch being adapted to provide space, when the elements are tiled together, for an electrical connection to be made between the carrier and a surface of the element arranged to faced away from the carrier. Each element may comprise Silicon Photomultiplier (SPM) circuitry.Type: ApplicationFiled: July 30, 2008Publication date: November 25, 2010Applicant: SensL Technologies LtdInventors: John Carlton Jackson, Padraig Joseph Hughes, Peter John Ward