Patents by Inventor John F. Silny

John F. Silny has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20190162931
    Abstract: A mirror system is disclosed. The mirror system can include a primary mirror, and a secondary mirror supported relative to the primary mirror. The primary mirror and the secondary mirror can have different coefficients of thermal expansion (CTE). A negative CTE strut is also disclosed. The negative CTE strut can include a main body portion. The negative CTE strut can also include a first coupling portion and a second coupling portion disposed opposite one another about the main body portion and defining a strut length. The first and second coupling portions can each be configured to interface with an external structure. In addition, the negative CTE strut can include an offsetting extension member having a first end coupled to the main body portion and a second end coupled to the first coupling portion by an intermediate extension member. The first end can be between the first coupling portion and the second end. The first and second ends can define an offset length parallel to the strut length.
    Type: Application
    Filed: November 30, 2017
    Publication date: May 30, 2019
    Inventors: Keith Carrigan, John F. Silny
  • Patent number: 10168209
    Abstract: Aspects and embodiments are generally directed to modular imaging spectrometer assemblies and methods of operation thereof.
    Type: Grant
    Filed: April 7, 2017
    Date of Patent: January 1, 2019
    Assignee: RAYTHEON COMPANY
    Inventors: Susan B. Spencer, Lacy G. Cook, Andrew L. Bullard, John F. Silny
  • Patent number: 10151632
    Abstract: An imaging spectrometer and method are provided. In one example, the imaging spectrometer includes foreoptics positioned to receive electromagnetic radiation from a scene, a diffraction grating positioned to receive the electromagnetic radiation from the foreoptics and configured to disperse the electromagnetic radiation into a plurality of spectral bands, each spectral band corresponding to a diffraction grating order of the diffraction grating, and a single-band focal plane array configured to simultaneously receive from the diffraction grating overlapping spectra corresponding to at least two diffraction grating orders.
    Type: Grant
    Filed: September 20, 2016
    Date of Patent: December 11, 2018
    Assignee: RAYTHEON COMPANY
    Inventors: John F. Silny, Bradley A. Flanders
  • Publication number: 20180292258
    Abstract: Aspects and embodiments are generally directed to modular imaging spectrometer assemblies and methods of operation thereof.
    Type: Application
    Filed: April 7, 2017
    Publication date: October 11, 2018
    Inventors: Susan B. Spencer, Lacy G. Cook, Andrew L. Bullard, John F. Silny
  • Publication number: 20180080826
    Abstract: An imaging spectrometer and method are provided. In one example, the imaging spectrometer includes foreoptics positioned to receive electromagnetic radiation from a scene, a diffraction grating positioned to receive the electromagnetic radiation from the foreoptics and configured to disperse the electromagnetic radiation into a plurality of spectral bands, each spectral band corresponding to a diffraction grating order of the diffraction grating, and a single-band focal plane array configured to simultaneously receive from the diffraction grating overlapping spectra corresponding to at least two diffraction grating orders.
    Type: Application
    Filed: September 20, 2016
    Publication date: March 22, 2018
    Inventors: John F. Silny, Bradley A. Flanders
  • Patent number: 9826292
    Abstract: A laser relay module in a free space optical communication network includes: a beacon source for generating an optical beacon signal for aligning a communication channel of a source optical node to a communication channel of a receiving optical node; a beacon inserter for encoding the optical beacon signal with switching information; a telescope for transmitting the encoded optical beacon signal to the receiving optical node; a beacon detector for detecting received switching information from the modulated optical beacon signal, wherein the receiving optical node uses the encoded optical beacon signal to align communication channel of the receiving optical node with communication channel of the source optical node; and a processor for using the detected switching information to change configuration of an optical switch matrix to direct received data to a next optical node in the free space optical communication network.
    Type: Grant
    Filed: March 21, 2014
    Date of Patent: November 21, 2017
    Assignee: RAYTHEON COMPANY
    Inventors: Gary D. Coleman, John F. Silny
  • Patent number: 9823116
    Abstract: Geometric calibration of an imaging system is performed by recording visible control points in a calibration image whose geometric properties are known and calibration coefficients can be derived utilizing an image processing system for transforming the recorded image into a geometric distortion-free image. Described are methods and systems for vicarious geometric calibration of a remote sensor that include a processor configured to receive image data collected at a remote sensor, the image data including a plurality of image elements each associated with a respective reflective mirror from a plurality of reflective mirrors located at respective know positions, determine, for each of the plurality of reflective mirrors, an image location in the image data and determine one or more figures of merit based on the image locations and the known positions for each of the plurality of reflective mirrors.
    Type: Grant
    Filed: August 23, 2012
    Date of Patent: November 21, 2017
    Assignee: Raytheon Company
    Inventors: John F. Silny, Stephen J. Schiller
  • Patent number: 9726542
    Abstract: A multi-mode imaging spectrometer that incorporates two orthogonally positioned entrance slits and is configurable between a first mode in which the system produces images of relatively wide spatial coverage with moderate spectral resolution, using a first one of the two slits, and a second mode in which the system produces images of a smaller spatial area with fine spectral resolution, using the other one of the two slits.
    Type: Grant
    Filed: November 18, 2014
    Date of Patent: August 8, 2017
    Assignee: RAYTHEON COMPANY
    Inventor: John F. Silny
  • Patent number: 9594978
    Abstract: A method of image processing for finding a target in a scene includes receiving a series of images from a sensor and computing a background relative velocity in the series of images. The method further includes estimating a hypothesized target relative velocity of the target in the series of images. The method further includes computing a target revisit time based on a difference of the target relative velocity and the background relative velocity. The method further includes adjusting one or more of a frame capture rate or a frame processing rate based on the target revisit time.
    Type: Grant
    Filed: August 7, 2015
    Date of Patent: March 14, 2017
    Assignee: Raytheon Company
    Inventors: John F. Silny, Mark T. Busch, Joe G. Shanks
  • Publication number: 20170039446
    Abstract: A method of image processing for finding a target in a scene includes receiving a series of images from a sensor and computing a background relative velocity in the series of images. The method further includes estimating a hypothesized target relative velocity of the target in the series of images. The method further includes computing a target revisit time based on a difference of the target relative velocity and the background relative velocity. The method further includes adjusting one or more of a frame capture rate or a frame processing rate based on the target revisit time.
    Type: Application
    Filed: August 7, 2015
    Publication date: February 9, 2017
    Applicant: RAYTHEON COMPANY
    Inventors: John F. Silny, Mark T. Busch, Joe G. Shanks
  • Patent number: 9513162
    Abstract: Methods and apparatus for remote, passive detection of underwater objects using combined spectral and polarimetric imaging. In one example, a tunable multi-band spectro-polarimeter includes an imaging detector array that receives electromagnetic radiation from a viewed scene, a plurality of tunable spectral filters configured to filter the electromagnetic radiation into at least first and second spectral bands, and a plurality of polarization filters configured to filter each of the first and second spectral bands into at least two different polarization states, a first region of the detector array receiving the first spectral band and producing first polarimetric image data, and a second region of the detector array simultaneously receiving the second spectral band and producing second polarimetric image data, and a controller that receives and processes the first and second polarimetric image data to detect a target object in the viewed scene.
    Type: Grant
    Filed: March 16, 2015
    Date of Patent: December 6, 2016
    Assignee: RAYTHEON COMPANY
    Inventors: Robert Bruce Herrick, John F. Silny, David M. Zimmerman, Joseph G. Shanks, Joseph P. Filice
  • Publication number: 20160273963
    Abstract: Methods and apparatus for remote, passive detection of underwater objects using combined spectral and polarimetric imaging. In one example, a tunable multi-band spectro-polarimeter includes an imaging detector array that receives electromagnetic radiation from a viewed scene, a plurality of tunable spectral filters configured to filter the electromagnetic radiation into at least first and second spectral bands, and a plurality of polarization filters configured to filter each of the first and second spectral bands into at least two different polarization states, a first region of the detector array receiving the first spectral band and producing first polarimetric image data, and a second region of the detector array simultaneously receiving the second spectral band and producing second polarimetric image data, and a controller that receives and processes the first and second polarimetric image data to detect a target object in the viewed scene.
    Type: Application
    Filed: March 16, 2015
    Publication date: September 22, 2016
    Applicant: RAYTHEON COMPANY
    Inventors: Robert Bruce Herrick, John F. Silny, David M. Zimmerman, Joseph G. Shanks, Joseph P. Filice
  • Patent number: 9438969
    Abstract: Device and method for optically switching a plurality of optical input signals include: receiving the plurality of optical input signals, wherein one or more of the optical input signals represent multiple channels at different channel frequencies; collimating the received plurality of optical input signals; removing noise between the channels by a comb filter; dispersing the collimated optical signals so that signals of different wavelength are separated by different angles; focusing the optical signals separated by different angles on a light switch device having a plurality of micromirrors; and controlling the light switch by a control signal to direct one or more of the optical signals separated by different angles to one or more output fibers for multicasting of the optical input signals.
    Type: Grant
    Filed: July 18, 2014
    Date of Patent: September 6, 2016
    Assignee: RAYTHEON COMPANY
    Inventors: John F. Silny, Gary D. Coleman
  • Patent number: 9372119
    Abstract: Described are methods and systems for vicarious polarimetric calibration and performance validation of a remote sensor. The system includes a plurality of reflective mirrors configured and arranged to reflect radiation from a source of radiation onto the remote sensor with accurately known polarimetric properties. Each of the reflective mirrors are located so that the target images do not overlap. The remote sensor is configured to receive the radiation reflected from the plurality of reflective mirrors and store the received radiation as image data (e.g., the image of each mirror appears as a point target). The system includes a processor configured to process the received data to provide direct calibration and performance validation for each polarimetric or spectral channel of the remote sensor. In addition, the calibration method removes all atmospheric effects except for transmittance and provides reference targets that have high polarimetric contrast, full spectrum performance and easy to deploy.
    Type: Grant
    Filed: November 14, 2014
    Date of Patent: June 21, 2016
    Assignee: Raytheon Company
    Inventors: John F. Silny, Stephen J. Schiller
  • Publication number: 20160165325
    Abstract: A laser relay module in a free space optical communication network includes: a beacon source for generating an optical beacon signal for aligning a communication channel of a source optical node to a communication channel of a receiving optical node; a beacon inserter for encoding the optical beacon signal with switching information; a telescope for transmitting the encoded optical beacon signal to the receiving optical node; a beacon detector for detecting received switching information from the modulated optical beacon signal, wherein the receiving optical node uses the encoded optical beacon signal to align communication channel of the receiving optical node with communication channel of the source optical node; and a processor for using the detected switching information to change configuration of an optical switch matrix to direct received data to a next optical node in the free space optical communication network.
    Type: Application
    Filed: March 21, 2014
    Publication date: June 9, 2016
    Applicant: RAYTHEON COMPANY
    Inventors: Gary D. Coleman, John F. Silny
  • Patent number: 9352858
    Abstract: A methodology for initial orbit determination of an object about an astronomical body searches a grid of possible boundary values on the range-to-object over the observation interval to find the grid point and corresponding initial orbit that best fits all of the more than three (N) angles-only observations according to an error metric. The search is conducted by solving a boundary-value problem for different grid points. The state vector is propagated to determine estimated observation directions for the remaining N?2 observations. The grid point (and initial orbit) that best fit all of the observations is selected. For efficiency, the search may start with a broad but coarse initial grid and increase the resolution of the grid as the search converges to a solution.
    Type: Grant
    Filed: October 30, 2013
    Date of Patent: May 31, 2016
    Assignee: Raytheon Company
    Inventors: Gary D. Coleman, John F. Silny
  • Publication number: 20160138974
    Abstract: A multi-mode imaging spectrometer that incorporates two orthogonally positioned entrance slits and is configurable between a first mode in which the system produces images of relatively wide spatial coverage with moderate spectral resolution, using a first one of the two slits, and a second mode in which the system produces images of a smaller spatial area with fine spectral resolution, using the other one of the two slits.
    Type: Application
    Filed: November 18, 2014
    Publication date: May 19, 2016
    Inventor: John F. Silny
  • Publication number: 20160037089
    Abstract: Infrared imaging systems and methods incorporating the use of pixelated filter arrays integrated with the imaging detector. In one example, an infrared imaging system includes imaging optics that focus infrared radiation towards a focal plane of the system, an uncooled focal plane array sensor configured to receive the infrared radiation from the imaging optics, and a processor coupled to the uncooled focal plane array sensor and configured to receive and process image data received from the uncooled focal plane array sensor. The uncooled focal plane array sensor includes a two-dimensional array of microbolometer pixels and a corresponding two-dimensional filter array integrated and aligned with the two-dimensional array of microbolometer pixels such that each microbolometer pixel has a corresponding filter. The filter array is configured to filter the infrared radiation into at least two spectral bands or at least two polarizations.
    Type: Application
    Filed: July 30, 2014
    Publication date: February 4, 2016
    Inventors: John F. Silny, Hector M. Reyes, JR.
  • Publication number: 20160021436
    Abstract: Device and method for optically switching a plurality of optical input signals include: receiving the plurality of optical input signals, wherein one or more of the optical input signals represent multiple channels at different channel frequencies; collimating the received plurality of optical input signals; removing noise between the channels by a comb filter; dispersing the collimated optical signals so that signals of different wavelength are separated by different angles; focusing the optical signals separated by different angles on a light switch device having a plurality of micromirrors; and controlling the light switch by a control signal to direct one or more of the optical signals separated by different angles to one or more output fibers for multicasting of the optical input signals.
    Type: Application
    Filed: July 18, 2014
    Publication date: January 21, 2016
    Inventors: John F. Silny, Gary D. Coleman
  • Patent number: 9215008
    Abstract: A free space line of site communication system for communicating between a first destination and a second destination includes a constellation of airborne platforms in a train-like formation, each travelling at a constant speed and distance relative to each other. Each of the airborne platforms includes: one or more inter-airborne platform optical or RF transceivers for communication with a previous and a next neighboring airborne platforms, wherein each inter-airborne platform transceiver is capable of adjusting its velocity to keep a constant speed and distance relative to its neighboring airborne platforms, and one or more up/down link transceivers for communication with multiple ground sites, each ground site having two or more ground optical or RF transceivers. A first airborne platforms closest to the first destination communicates with the first destination and a second airborne platforms closest to the second destination communicates with the second destination.
    Type: Grant
    Filed: January 24, 2014
    Date of Patent: December 15, 2015
    Assignee: RAYTHEON COMPANY
    Inventors: C. Thomas Hastings, Jr., John F. Silny