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公开(公告)号：US12270946B2
公开(公告)日：2025-04-08
申请号：US17474504
申请日：2021-09-14
Applicant: Raytheon Company
Inventor： Gerald P. Uyeno , Eric Rogala , Mark K. Lange , Sean D. Keller , Vanessa Reyna , Benn H. Gleason , Craig O. Shott , Garret A. Odom , Jon E. Leigh
Abstract: The design of an existing air-to-air missile seeker is adapted to new missions that require both active laser illumination and detection (passive or active) capabilities. The gimbal is used to point the laser beam to a desired location in a transmit FOR. This approach minimizes the size, weight and power of the sensor because only a small portion of the transmit FOR is illuminated at any instant. This minimizes the laser output required, which reduces the power to operate the laser and the power to maintain the laser at operating temperature. In existing seekers, the gimbal points the detector in the desired direction to expand its FOR. To address the limitations of coupling the laser beam into the gimbaled optical system, the gimbal cannot perform the steering function for the detector. Instead, a staring detector receives light through an off-gimbal aperture within a fixed receive FOR that overlaps the transmit FOR.
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公开(公告)号：US12253627B2
公开(公告)日：2025-03-18
申请号：US17961185
申请日：2022-10-06
Applicant: Raytheon Company
Inventor： Sean D. Keller
Abstract: A laser warning receiver that can be detachably mounted on the inside of a window of a manned platform to detect laser threats within its field-of-view (FOV) and to provide visual or audio warnings to the human occupant. The LWR is fully self-contained and independent of any systems on the manned platform. In different packaging configurations, the receiver's FOV can be manually rotated to better visualize the threat and/or the receiver's human-machine interface (HMIF) can be manually rotated to better display the warnings. Although most typically used in manned aircraft the LWR can be used in other manned vehicles or ships.
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3.发明授权公开(公告)号：US12061334B2
公开(公告)日：2024-08-13
申请号：US17231898
申请日：2021-04-15
Applicant: Raytheon Company
Inventor： David J. Knapp , Gerald P. Uyeno , Sean D. Keller , Benn H. Gleason , Eric Rogala , Mark K. Lange , Garret A. Odom , Craig O. Shott , Zachary D. Barker
CPC classification number: G02B26/105 , B81B3/0083 , G02B26/0833 , B81B2201/042 , B81B2203/058 , B81B2207/053
Abstract: An optical scanning system includes one or more Micro-Electro-Mechanical System (MEMS) Micro-Mirror Arrays (MMAs) used to scan a field-of-view (FOV) over a field-of-regard (FOR). The MEMS MMA is configured such that optical radiation from each point in the FOV does not land on or originate from out-of-phase mirror segments and a diffraction limited resolution of the optical system is limited by the size of the entrance pupil and not by the size of individual mirrors.
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公开(公告)号：US11644542B2
公开(公告)日：2023-05-09
申请号：US17479896
申请日：2021-09-20
Applicant: Raytheon Company
Inventor： Craig O. Shott , Gerald P. Uyeno , Benn H. Gleason , Sean D. Keller , Mark K. Lange , Eric Rogala , Vanessa Reyna , Garret A. Odom , Jon E. Leigh
CPC classification number: G01S7/4817 , F41G7/2246 , G01S17/66
Abstract: An optical sensor uses a MEMS MMA to scan a narrow laser beam over a transmit FOR to provide active illumination and to correct the beam profile (e.g., collimate the beam, reduce chromatic aberrations, correct the beam profile or wavefront). A staring detector senses light within a receive FOR that at least partially overlaps the transmit FOR. By completely eliminating the dual-axis gimbal, this sensor architecture greatly reduces the volume and weight of the optical sensor while avoiding the deficiencies of known systems associated with either fiber or free-space coupling of the laser beam into an existing receiver.
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公开(公告)号：US11539131B2
公开(公告)日：2022-12-27
申请号：US17001125
申请日：2020-08-24
Applicant: Raytheon Company
Inventor： Gerald P. Uyeno , Sean D. Keller , Benn H. Gleason
Abstract: An optical true time delay (TTD) control device for controllably alters the transit time of an optical beam traveling through the device by using the tip & tilt capability of MEMS MMAs to control the entrance and exit angles to a reflection cavity to coarsely control the path length and transit time and the piston capability to fine tune the path length and transit time. The reflection cavity can be configured in one, two or three dimensions with or without an optically transparent solid medium and using additional MEMS MMAs to provide controllable mirror surfaces within the cavity to enhance dynamic range and tenability. The input MEMS MMA may be “segmented” to re-direct a plurality of channel optical beams from the cavity at the same or different exit angles. The segments may be coated with different AR coatings to provide channel optical beams at different wavelengths.
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Patent Agency Ranking
6.发明授权公开(公告)号：US11536543B2
公开(公告)日：2022-12-27
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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公开(公告)号：US20220350133A1
公开(公告)日：2022-11-03
申请号：US17242861
申请日：2021-04-28
Applicant: Raytheon Company
Inventor： Benn H. Gleason , Gerald P. Uyeno , Sean D. Keller
Abstract: A steerable laser transmitter and active situational awareness sensor that achieves SWaP-C, steering rate and spectral diversity improvements by scanning a beam with a Micro-Electro-Mechanical System (MEMS) Micro-Minor Array (MMA). One or more sections of non-linear material (NLM) positioned in the optical path (e.g. as annular sections around a conic mirror or as reflective optical coatings on the MMA) are used to convert the wavelength of the beam to a different wavelength while preserving the steering of the beam. The MEMS MMA may include piston actuation of the mirrors to shape the spot-beam.
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公开(公告)号：US11477350B2
公开(公告)日：2022-10-18
申请号：US17150286
申请日：2021-01-15
Applicant: Raytheon Company
Inventor： Gerald P. Uyeno , Sean D. Keller , Benn H. Gleason
Abstract: Imaging systems and method of optical imaging. One example of an imaging system includes an optical scanning subsystem including an optical source and a MEMS MMA, the MEMS MMA being configured to direct optical radiation generated by the optical source over an area of a scene, a detection subsystem including an optical sensor configured to collect reflected optical radiation from the area of the scene, and a fused fiber focusing assembly including a fused fiber bundle, a plurality of lenses coupled together and positioned to receive and focus the reflected optical radiation from the area of the scene directly onto the fused fiber bundle, a microlens array interposed between the fused fiber bundle and the optical sensor and positioned to receive the reflected optical radiation from the fused fiber bundle, and a focusing lens positioned to direct the reflected optical radiation from the microlens array onto the optical sensor. The MEMS MMA may be further configured to generate and independently steer multiple beams of optical radiation, at the same or different wavelengths, to more fully interrogate the area of the scene. The MEMS MMA through its Piston capability may be further configured to shape the optical beam(s) to execute a variety of optical functions within the beam steering device.
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公开(公告)号：US20220260827A1
公开(公告)日：2022-08-18
申请号：US17177755
申请日：2021-02-17
Applicant: Raytheon Company
Inventor： Sean D. Keller , Gerald P. Uyeno , Benn H. Gleason
Abstract: An active situational sensor uses a Micro-Electro-Mechanical System (MEMS) Micro-Mirror Array (MMA) to steer an optical beam to different off-axis sections of a parabolic mirror, an “OAP”, to re-direct and focus optical radiation into a spot-beam onto a conical shape of a fixed mirror, which redirects the spot-beam to scan a FOR. The sensor may rapidly scan a 360° horizontal FOR with a specified vertical FOR or any portion thereof, move discretely between multiple specific objects per frame, vary the dwell time on an object or compensate for other external factors to tailor the scan to a particular application or changing conditions in real-time. The MEMS MMA may be configurable to shape the spot-beam to adjust size, focus or intensity profile or to produce deviations in the wavefront of the spot-beam to compensate for path length differences or atmospheric distortion. The MEMS MMA being configurable to produce and independently steer a plurality of spot-beams of the same or different wavelengths.
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公开(公告)号：US20220232144A1
公开(公告)日：2022-07-21
申请号：US17150286
申请日：2021-01-15
Applicant: Raytheon Company
Inventor： Gerald P. Uyeno , Sean D. Keller , Benn H. Gleason
Abstract: Imaging systems and method of optical imaging. One example of an imaging system includes an optical scanning subsystem including an optical source and a MEMS MMA, the MEMS MMA being configured to direct optical radiation generated by the optical source over an area of a scene, a detection subsystem including an optical sensor configured to collect reflected optical radiation from the area of the scene, and a fused fiber focusing assembly including a fused fiber bundle, a plurality of lenses coupled together and positioned to receive and focus the reflected optical radiation from the area of the scene directly onto the fused fiber bundle, a microlens array interposed between the fused fiber bundle and the optical sensor and positioned to receive the reflected optical radiation from the fused fiber bundle, and a focusing lens positioned to direct the reflected optical radiation from the microlens array onto the optical sensor. The MEMS MMA may be further configured to generate and independently steer multiple beams of optical radiation, at the same or different wavelengths, to more fully interrogate the area of the scene. The MEMS MMA through its Piston capability may be further configured to shape the optical beam(s) to execute a variety of optical functions within the beam steering device.
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