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公开(公告)号：US11835705B2
公开(公告)日：2023-12-05
申请号：US17065177
申请日：2020-10-07
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
CPC classification number: G02B23/16 , F16M11/123
Abstract: Optical sensors and particularly gimbaled optical sensors transmit an active signal at a given wavelength and receive passive signals over a range of wavelengths while controlling pointing without benefit of measuring and locating the active signal return. The sensor includes a Tx/Rx Aperture Sharing Element (ASE) is configured to block the received active signal (e.g. reflections off a target in a scene) and process only the passive emissions. These optical sensors may, for example, be used with guided munitions or autonomous vehicles.
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2.发明授权公开(公告)号：US10969598B2
公开(公告)日：2021-04-06
申请号：US16162275
申请日：2018-10-16
Applicant: Raytheon Company
Inventor： Eric C. Fest , Jon E. Leigh
Abstract: Polarized pixelated filter sub-array is reconfigured to reduce sensitivity to misalignment. The condition number increases more slowly than the standard polarized pixelated filter sub-array as the misalignment increases. In different embodiments, the filter sub-array is configured such that the condition number has a finite bound at ½ pixel misalignment. The angular values of the polarizer filter array are determined to minimize the sensitivity of the condition number of the data reduction matrix to misalignment. This can be achieved by selecting angular values that minimize the expected value of the condition number E(CN) over the range of misalignment.
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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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4.发明授权公开(公告)号：US10168542B2
公开(公告)日：2019-01-01
申请号：US14836305
申请日：2015-08-26
Applicant: Raytheon Company
Inventor： Eric C. Fest , Jon E. Leigh
Abstract: Polarized pixelated filter sub-array is reconfigured to reduce sensitivity to misalignment. The condition number increases more slowly than the standard polarized pixelated filter sub-array as the misalignment increases. In different embodiments, the filter sub-array is configured such that the condition number has a finite bound at ½ pixel misalignment. The angular values of the polarizer filter array are determined to minimize the sensitivity of the condition number of the data reduction matrix to misalignment. This can be achieved by selecting angular values that minimize the expected value of the condition number E(CN) over the range of misalignment.
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公开(公告)号：US20240402303A1
公开(公告)日：2024-12-05
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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Patent Agency Ranking
公开(公告)号：US20230101430A1
公开(公告)日：2023-03-30
申请号：US17725872
申请日：2022-04-21
Applicant: Raytheon Company
Inventor： Sean D. Keller , David J. Knapp , Jon E. Leigh
Abstract: A system and method for measurement and correction of aero-optical and aero-thermal effects to an EO/IR sensor's window/dome on a supersonic flight-vehicle. Range-gating of laser pulses measures and separates aerodynamic and atmospheric effects. Separate control algorithms and control loops at different update rates both simplifies the control algorithms and improves overall performance. The use of a MEMS MMA having tip/tilt/piston capabilities as the deformable mirror to provide wavefront correction enhances overall performance. The corrected laser pulses may also be used to actively illuminate a target to provide both active and passive detection.
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公开(公告)号：US10082319B2
公开(公告)日：2018-09-25
申请号：US14884348
申请日：2015-10-15
Applicant: RAYTHEON COMPANY
Inventor： Paul M. Lyons , Daniel W. Brunton , Jon E. Leigh
CPC classification number: F25B9/02 , F25B9/14 , F25B13/00 , F25B27/00 , F25B49/02 , F25B2313/003 , F25B2313/02322 , F25B2327/001 , F25B2400/06 , F25B2500/19 , F25D19/006 , G01J1/0252
Abstract: An apparatus includes a chamber, a first heat exchanger, an adapter, and a second heat exchanger. The first heat exchanger includes a cold finger positioned within the chamber. The second heat exchanger is positioned around an adapter and within the chamber. The second heat exchanger is a counter flow heat exchanger to precool refrigerant entering a Joule-Thomson valve. The adapter is positioned between the cold finger and the second heat exchanger. The adapter transfers heat from a thermal load to both the cold finger and the refrigerant emitted from the Joule-Thomson valve.
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公开(公告)号：US20170108248A1
公开(公告)日：2017-04-20
申请号：US14884348
申请日：2015-10-15
Applicant: RAYTHEON COMPANY
Inventor： Paul M. Lyons , Daniel W. Brunton , Jon E. Leigh
CPC classification number: F25B9/02 , F25B9/14 , F25B13/00 , F25B27/00 , F25B49/02 , F25B2313/003 , F25B2313/02322 , F25B2327/001 , F25B2400/06 , F25B2500/19 , F25D19/006 , G01J1/0252
Abstract: An apparatus includes a chamber, a first heat exchanger, an adapter, and a second heat exchanger. The first heat exchanger includes a cold finger positioned within the chamber. The second heat exchanger is positioned around an adapter and within the chamber. The second heat exchanger is a counter flow heat exchanger to precool refrigerant entering a Joule-Thomson valve. The adapter is positioned between the cold finger and the second heat exchanger. The adapter transfers heat from a thermal load to both the cold finger and the refrigerant emitted from the Joule-Thomson valve.
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公开(公告)号：US11835709B2
公开(公告)日：2023-12-05
申请号：US17171577
申请日：2021-02-09
Applicant: Raytheon Company
Inventor： Gerald P. Uyeno , Benn H. Gleason , Sean D. Keller , Mark K. Lange , Eric Rogala , Vanessa Reyna , Craig O. Shott , Jon E. Leigh , Garret A. Odom
IPC: G02B26/08 , G01S7/481 , G01S17/931 , G01S17/933
CPC classification number: G02B26/0833 , G01S7/4811 , G01S7/4817 , G01S17/931 , G01S17/933
Abstract: A beam steering architecture for an optical sensor is based upon a pair of Micro-Electro-Mechanical System (MEMS) Micro-Mirror Arrays (MMAs) and a fold mirror. The MEMS MMAs scan both primary and secondary FOR providing considerable flexibility to scan a scene to provide not only active imaging (to supplement passive imaging) but also simultaneously allowing for other optical functions such as establishing a communications link, providing an optical transmit beam for another detection platform or determining a range to target. A special class of MEMS MMAs that provides a “piston” capability in which the individual mirrors may translate enables a suite of optical functions to “shape” the optical transmit beam.
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公开(公告)号：US20230087666A1
公开(公告)日：2023-03-23
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
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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