公开(公告)号：US20220229285A1

公开(公告)日：2022-07-21

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.

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

IPC: G02B26/10 ,  B81B3/00 ,  G02B26/08

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.

公开(公告)号：US20230022548A1

公开(公告)日：2023-01-26

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

IPC: G02B26/10 ,  G02B26/08 ,  B81B3/00

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.

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.

公开(公告)号：US11747445B2

公开(公告)日：2023-09-05

申请号：US17411859

申请日：2021-08-25

Applicant: Raytheon Company

Inventor： Sean D. Keller ,  Gerald P. Uyeno ,  Zachary D. Barker

IPC: G01S7/48 ,  G01S3/781 ,  G01S3/787 ,  G02B13/08

CPC classification number: G01S7/4804 ,  G01S3/781 ,  G01S3/787 ,  G02B13/08

Abstract: A warning receiver includes an anamorphic lens positioned to receive light within a field-of-view (FOV) defined by first and second angles that are orthogonal to each other and compress the light along the first orthogonal angle into a single line along the second orthogonal angle. A dispersive element is positioned to separate the single line of light into a plurality of wavelengths to produce a two-dimensional light field indexed by the second orthogonal angle and wavelength. A pixelated detector is positioned to receive the light field and readout electrical signals indexed by the second orthogonal angle and wavelength. A processor coupled to the pixelated detector process the electrical signals to detect and characterize an optical source within the FOV.

公开(公告)号：US20230068495A1

公开(公告)日：2023-03-02

申请号：US17411859

申请日：2021-08-25

Applicant: Raytheon Company

Inventor： Sean D. Keller ,  Gerald P. Uyeno ,  Zachary D. Barker

IPC: G01S7/48 ,  G01S3/787 ,  G01S3/781

Abstract: A warning receiver includes an anamorphic lens positioned to receive light within a field-of-view (FOV) defined by first and second angles that are orthogonal to each other and compress the light along the first orthogonal angle into a single line along the second orthogonal angle. A dispersive element is positioned to separate the single line of light into a plurality of wavelengths to produce a two-dimensional light field indexed by the second orthogonal angle and wavelength. A pixelated detector is positioned to receive the light field and readout electrical signals indexed by the second orthogonal angle and wavelength. A processor coupled to the pixelated detector process the electrical signals to detect and characterize an optical source within the FOV.