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101.发明申请公开(公告)号：US20220082816A1
公开(公告)日：2022-03-17
申请号：US17024436
申请日：2020-09-17
Applicant: Raytheon Company
Inventor： Gerald P. Uyeno , Sean D. Keller , Benn H. Gleason
Abstract: An active imaging system uses a MEMS Micro-Mirror Array to form and scan an optical beam over a first portion of scene within a first edge region of the field-of-view of the optical receiver in the direction of motion of the imaging system. In addition to tip and tilt control of the mirrors, the MMA may have piston control which can be used to minimize diffraction losses when focusing and scanning the beam, provide wavefront correction or to compensate for path length variations. The MMA may be partitioned into segments to independently form and scan a plurality of optical beams, which may be used to scan the first or different portions of the scene. The different segments may be provided with reflective coatings at different wavelengths to provide for multi-spectral imaging. The different segments may be used to combine multiple optical sources to increase power or provide multi-spectral illumination.
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公开(公告)号：US20210333154A1
公开(公告)日：2021-10-28
申请号：US16856680
申请日：2020-04-23
Applicant: Raytheon Company
Inventor： Gerald P. Uyeno , Sean D. Keller , Benn Gleason
Abstract: An optically powered cryogenic FPA with an optical data link eliminates electrical penetrations of the cryogenic chamber for power delivery thereby reducing heat leaks into the cold volume by copper wires and EMI. An optical splitter receives and separates an optical input signal into an optical carrier signal, an optical Data IN signal and an optical power signal. An optical-to-electrical (0/E) converter converts the optical power signal into an electrical power signal, which is converted into a plurality of DC voltage signals to supply power within the chamber. An optical data link modulates the optical carrier signal with electrical signals from the ROIC to form and output an optical Data OUT signal.
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公开(公告)号：US20210297161A1
公开(公告)日：2021-09-23
申请号：US16821530
申请日：2020-03-17
Applicant: Raytheon Company
Inventor： Gerald P. Uyeno , Sean D. Keller , Benn Gleason
IPC: H04B10/61 , H04B10/2575 , H04B1/16
Abstract: An RF imaging receiver using photonic spatial beam processing is provided with an optical beam steerer that acts on the individual modulated optical signals to induce individual phase delays that produce a phase delay with a linear term, and possibly spherical or aspherical terms, across a two-dimensional wavefront of the composite optical signal to steer the composite optical signal and move the location of the spot on the optical detector array. The optical beam steerer may change the path length or a refractive index for each of the modulated optical signals to induce the requisite phase delays. The optical beam steerer may be implemented, for example, with a Risley prism or liquid crystal or MEMs spatial light modulator.
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104.发明申请公开(公告)号：US20210296770A1
公开(公告)日：2021-09-23
申请号：US16822873
申请日：2020-03-18
Applicant: Raytheon Company
Inventor： Gerald P. Uyeno , Sean D. Keller , Benn Gleason
Abstract: An RF imaging receiver using photonic spatial beam processing focuses a composite optical signal into a spot on an optical detector array to extract an image of an RF scene. The receiver steers the composite optical signal to move the location of the spot to increase the detected power in the image and selectively turns off one or more detector pixels around the spot to reduce noise in the image.
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公开(公告)号：US11127150B2
公开(公告)日：2021-09-21
申请号：US16577482
申请日：2019-09-20
Applicant: Raytheon Company
Inventor： Gerald P. Uyeno , Sean D. Keller , John R. Becker
Abstract: A multiple target tracker and beam steerer utilizes a micro-electro-mechanical system (MEMS) micro-mirror array to illuminate multiple tracked targets per frame one target at a time for designation, range finding or active imaging. The steering rate and range afforded by the MEMS micro-mirror array supports various tracker configurations (out-of-band, in-band or dual-band video cameras), LADAR detectors (single pixel or pixelated) and prioritization of tracked targets to vary the revisit rate or dwell time for an illuminated target. A user interface accepts commands from an operator to select the targeting mode, control cue-box size and position within the FOV and target selection. The MEMS micro-mirror array may be used to reflect beams and/or optical signals, in some embodiments.
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Patent Agency Ranking
106.发明申请公开(公告)号：US20210231413A1
公开(公告)日：2021-07-29
申请号：US16773257
申请日：2020-01-27
Applicant: Raytheon Company
Inventor： Gerald P. Uyeno , Sean D. Keller , Benn Gleason
Abstract: A DE energy weapon and tracking system includes a passive millimeter wave (PmmW) imaging receiver on a common gimbaled telescope to sense natural electromagnetic radiation from a mmW scene. The PmmW imaging receiver operates in a portion of the electromagnetic spectrum distinct from the IR bands associated with thermal blooming or the HEL laser. In the case of a HPM source, the reflected energy is either in a different RF band and/or of diminished amplitude such as to not interfere with operation of the PmmW imaging receiver. Although lower resolution than traditional optical imaging, PmmW imaging provides a viable alternative for target tracking when the DE weapon is actively prosecuting the target and provides additional tracking information when the DE weapon is not engaged.
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107.发明授权公开(公告)号：US11042025B2
公开(公告)日：2021-06-22
申请号：US16871602
申请日：2020-05-11
Applicant: Raytheon Company
Inventor： Gerald P. Uyeno , Sean D. Keller , Benn H. Gleason
Abstract: Embodiments of an optical data communication apparatus using micro-electro-mechanical system (MEMS) micro-mirror arrays is described herein. The apparatus may include a router configured to operate as a relay to exchange optical data signals between optical switches of the apparatus. The optical switches may be configured to switch between reflection directions to reflect the optical signals over different optical connections between the optical switches and different receiving ports of the router. The reflection directions may be switched in accordance with predetermined mappings between the receiving ports of the router and destinations of the optical signals. The router includes a MEMS micro-mirror array configured to reflect received optical signals to the destinations. A processing element of the optical data switching circuitry may generate a plurality of optical data signals and may send the optical data signals to an optical switch of the optical data switching circuitry.
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公开(公告)号：US20210092260A1
公开(公告)日：2021-03-25
申请号：US17014350
申请日：2020-09-08
Applicant: Raytheon Company
Inventor： Gerald P. Uyeno , Sean D. Keller , Benn H. Gleason
Abstract: An active mode image sensor for optical non-uniformity correction (NUC) of an active mode sensor uses a Micro-Electro-Mechanical System (MEMS) Micro-Mirror Array (MMA) having tilt, tip and piston mirror actuation to form and scan a laser spot that simultaneously performs the NUC and illuminates the scene so that the laser illumination is inversely proportional to the response of the imager at the scan position. The MEMS MMA also supports forming and scanning multiple laser spots to simultaneously interrogate the scene at the same or different wavelengths. The piston function can also be used to provide wavefront correction. The MEMS MMA may be configured to generate a plurality of fixed laser spots to perform an instantaneous NUC.
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公开(公告)号：US10243654B1
公开(公告)日：2019-03-26
申请号：US15941821
申请日：2018-03-30
Applicant: RAYTHEON COMPANY
Inventor： Gerald P. Uyeno , Sean D. Keller
IPC: H04B10/118 , H04B10/40
Abstract: Aspects are generally directed to an inter-satellite communication system and method of communicating between satellites. In one example, an inter-satellite communication system includes a first satellite transceiver having an entrance aperture, and a non-mechanical beamsteering device configured to steer a first beam of encoded optical data over a field of view thereof. The first satellite transceiver may include coarse steering optics configured to extend a field of regard of the non-mechanical beamsteering device. During a transmit mode, the coarse steering optics are positioned to transmit the first beam of encoded optical data through the entrance aperture in a direction of a second satellite transceiver. The first satellite transceiver may also include a beam splitter positioned, during a receive mode, to receive a second beam of encoded optical data from the second satellite transceiver and direct the second beam of encoded optical data to an optical sensor.
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110.发明申请公开(公告)号：US20180136318A1
公开(公告)日：2018-05-17
申请号：US15349499
申请日：2016-11-11
Applicant: Raytheon Company
Inventor： Gerald P. Uyeno , Sean D. Keller
Abstract: A situation awareness sensor includes a plurality of N sensor channels, each channel including an optical phased array (OPA) having a plurality of solid-state laser emitters, a command circuit and a detector. The command circuit controls the relative phase between the laser emitters to command a divergence, shape and exit angle of a spot-beam to scan a channel field-of-view (FOV). The OPAs may be controlled individually or in combination to command one or more spot-beams to scan an aggregate sensor FOV and to track one or more objects.
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