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    QUICK-MOUNT LASER WARNING RECEIVER
    91.
    发明公开
    QUICK-MOUNT LASER WARNING RECEIVER 审中-公开

    公开(公告)号：US20240118388A1

    公开(公告)日：2024-04-11

    申请号：US17961185

    申请日：2022-10-06

    Applicant: Raytheon Company

    Inventor： Sean D. Keller

    IPC: G01S7/48 ,  G01S7/481 ,  G01S7/51 ,  G01S17/88

    CPC classification number: G01S7/4804 ,  G01S7/4816 ,  G01S7/51 ,  G01S17/88

    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.

    Active pushbroom imaging system using a micro-electro-mechanical system (MEMS) micro-mirror array (MMA)
    94.
    发明授权
    Active pushbroom imaging system using a micro-electro-mechanical system (MEMS) micro-mirror array (MMA) 有权

    公开(公告)号：US11815676B2

    公开(公告)日：2023-11-14

    申请号：US17024436

    申请日：2020-09-17

    Applicant: Raytheon Company

    Inventor： Gerald P. Uyeno ,  Sean D. Keller ,  Benn H. Gleason

    IPC: G02B26/08 ,  G02B26/10 ,  H04N23/56

    CPC classification number: G02B26/101 ,  G02B26/0833 ,  H04N23/56

    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.

    Small angle optical beam steering using micro-electro-mechanical system (MEMS) micro-mirror arrays (MMAS)
    97.
    发明授权
    Small angle optical beam steering using micro-electro-mechanical system (MEMS) micro-mirror arrays (MMAS) 有权

    公开(公告)号：US11550146B2

    公开(公告)日：2023-01-10

    申请号：US17152023

    申请日：2021-01-19

    Applicant: Raytheon Company

    Inventor： Gerald P. Uyeno ,  Mark K. Lange ,  Sean D. Keller ,  Benn H. Gleason ,  Zachary D. Barker ,  Craig O. Shott ,  Eric Rogala

    IPC: G02B26/08

    Abstract: Small angle optical beam steering is performed using a Micro-Electro-Mechanical System (MEMS) Micro-Mirror Array (MMA) that minimizes diffraction for a specified steering angle, Generally speaking, this is accomplished with a MEMS MMA that exhibits a “piston” capability to translate individual mirrors in addition to the tip and tilt capabilities. Adjacent mirrors can be tipped/tilted to the specified steering angle and then translated by a requisite amount to approximate a continuous surface. For a specified steering angle, the MEMS MMA is partitioned into one or more sections with each section including the maximum number of mirrors that can be grouped together and actuated to approximate a continuous surface given a maximum translation z. As a result, the only edge discontinuities exist between adjacent sections thereby minimizing distortion for a given steering angle.

    Sensor for degraded visual environment
    98.
    发明授权
    Sensor for degraded visual environment 有权

    公开(公告)号：US11495883B2

    公开(公告)日：2022-11-08

    申请号：US16396574

    申请日：2019-04-26

    Applicant: RAYTHEON COMPANY

    Inventor： Gerald P. Uyeno ,  Sean D. Keller ,  Benn Gleason

    IPC: G01S13/00 ,  H01Q3/26 ,  H04B10/40 ,  G02B27/10 ,  G01S7/4915

    Abstract: A sensing system. In some embodiments, the system includes a first imaging radio frequency receiver, a second imaging radio frequency receiver, a first optical beam combiner, a first imaging optical receiver, a second optical beam combiner, and an optical detector array. The first optical beam combiner may be configured to combine optical signals of the imaging radio frequency receivers. The second optical beam combiner may be configured to combine the optical signals of the imaging radio frequency receivers, and the optical signal of the first imaging optical receiver.

    Optical non-uniformity compensation (NUC) for passive imaging sensors using micro-electro-mechanical system (MEMS) micro-mirror arrays (MMAS)
    99.
    发明授权
    Optical non-uniformity compensation (NUC) for passive imaging sensors using micro-electro-mechanical system (MEMS) micro-mirror arrays (MMAS) 有权

    公开(公告)号：US11483500B2

    公开(公告)日：2022-10-25

    申请号：US17211574

    申请日：2021-03-24

    Applicant: Raytheon Company

    Inventor： Paul R. Spyak ,  Gerald P. Uyeno ,  Benn H. Gleason ,  Sean D. Keller

    IPC: H04N5/365 ,  H04N5/378

    Abstract: A passive imaging sensor includes a plurality of optical elements in which at least one includes one or more Micro-Electro-Mechanical System (MEMS) Micro-Mirror Arrays (MMAs) having a plurality of independently and continuously controllable mirrors that at least tip and tilt in 2 DOF and may tip, tilt and piston in 3 DOF, In an operational mode, the mirrors are tipped and tilted, and possibly pistoned, such that the optical radiation is focused at the pixelated detector to read out an image of the scene. NUC coefficients such as offset and/or gain are applied to either the output signals of the detector or to the image to form the NUC'd images. In a calibration mode, the mirrors are tipped and tilted and/or pistoned to spatially or temporally blur the image or to re-direct the FOV to one or more on-board calibration sources to generate a uniform image from which to calculate and update the NUC coefficients.

    OPTICAL SENSOR WITH RING-SHAPED Tx/Rx APERTURE SHARING ELEMENT (ASE)
    100.
    发明申请
    OPTICAL SENSOR WITH RING-SHAPED Tx/Rx APERTURE SHARING ELEMENT (ASE) 有权

    公开(公告)号：US20220120861A1

    公开(公告)日：2022-04-21

    申请号：US17071767

    申请日：2020-10-15

    Applicant: Raytheon Company

    Inventor： Sean D. Keller ,  Gerald P. Uyeno

    IPC: G01S7/481 ,  G02B19/00 ,  G02B27/09 ,  G02B5/00 ,  H04N5/225 ,  G01S17/86 ,  G02B26/08 ,  G02B17/00 ,  G02B26/00 ,  F41G7/22

    Abstract: Optical sensors and particularly gimbaled optical sensors transmit an active signal at a given wavelength(s) and receive passive signals over a range of wavelengths and the active signal in a common aperture. The sensor includes a Tx/Rx Aperture Sharing Element (ASE) configured with an annular region that couples an active signal having a ring-shaped energy distribution to the telescope for transmission and a center region that couples the passive emissions and the returned active signal to the detector. A beam shaping element such as an Axicon lens, LCWG, Risley Prism, Unstable Optical Resonator or MEMS MMA may be used to form or trace the ring-shaped active signal onto the annular region of the ASE. A focusing optic may be used to reduce the divergence of the active signal so that it is collimated or slightly converging when transmitted such that the returned active signal approximates a spot. A filter wheel may be positioned behind the ASE to present separate passive and active images to the detector. These optical sensors may, for example, be used with guided munitions or autonomous vehicles.

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