公开(公告)号：US11635746B2

公开(公告)日：2023-04-25

申请号：US16829501

申请日：2020-03-25

Applicant: Raytheon Company

Inventor： Andrew M. Wilds ,  Craig O. Shott ,  Ryan D. White

IPC: G05B19/40 ,  G05B19/4099 ,  B33Y10/00 ,  B33Y50/00 ,  B33Y80/00 ,  B29C64/118 ,  B29C64/386 ,  B33Y70/10 ,  B29C70/88 ,  G06K19/06 ,  H01F41/16 ,  B33Y30/00 ,  B29K505/00

Abstract: A system and method for authenticating a physical object. The method may include the steps of: (1) encoding a feed material with randomized information; (2) forming the object with the feed material such that one or more portions of the object have respective randomized signatures based upon at least some of the randomized information of the feed material; (3) reading the respective randomized signatures at the one or portions of the object; (4) creating a profile of the respective randomized signatures at the one or more portions of the object based upon information from the reading; (5) transporting the physical object to an authenticator, and transmitting the profile to the authenticator; (6) reading the respective randomized signatures at the one or more portions of the object by the authenticator; and (7) comparing the reading by the authenticator to the profile received by the authenticator to thereby authenticate the physical object.

公开(公告)号：US20230043382A1

公开(公告)日：2023-02-09

申请号：US17397644

申请日：2021-08-09

Applicant: Raytheon Company

Inventor： Andrew M. Wilds ,  Craig O. Shott ,  Thomas Sanderson

IPC: H04N5/238 ,  H04N5/225

Abstract: An EO/IR optical imaging system comprises collection optics to collect light from a scene into a collimated or near-collimated space. An imaging detector is positioned at the image plane and configured to integrate incident light (radiant flux or photons) over an image frame and readout a sequence of pixelated images at a frame rate, said detector exhibiting a saturation threshold. To prevent saturation of the imaging detector, a MEMS MMA is positioned in the collimated or near-collimated space. A secondary detector (via a pick-off) samples light from the collimated or near-collimated space multiple times per image frame. A controller responsive to the sampled light commands a percentage of the mirrors to re-direct light incident on those mirrors to a light dump and commands the remaining mirrors to re-direct light incident on those mirrors to the imaging detector. Together the mirrors adjust a fraction of light reaching the imaging detector such that the integrated incident light for a given image frame is less than the saturation threshold.

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：US11543220B2

公开(公告)日：2023-01-03

申请号：US16889001

申请日：2020-06-01

Applicant: Raytheon Company

Inventor： Craig O. Shott ,  Brayden Peery ,  Gary W. Liles ,  Alex Karwas ,  Gregory J. Larson

IPC: F42B10/14 ,  F42B15/01

Abstract: A projectile including an ejectable aft fin housing assembly. The aft fin housing assembly includes aft fins that increase a distance between a center of gravity and a center of pressure of the projectile, improving passive stabilization of the projectile. Once the projectile has been passively stabilized, the aft fin housing assembly is ejected, decreasing a distance between the center of gravity and the center of pressure, improving active stabilization of the projectile.