Patents by Inventor Terry A. Dorschner

Terry A. Dorschner 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).

  • Patent number: 9772451
    Abstract: An optical system capable of routing primary and secondary high power lasers through a blocking switch is described.
    Type: Grant
    Filed: May 12, 2016
    Date of Patent: September 26, 2017
    Assignee: Raytheon Company
    Inventors: Irl W. Smith, Terry A. Dorschner
  • Patent number: 9631973
    Abstract: A programmable multifunction spectral and/or polarization imager. In one example, such an imager includes an imaging optical subsystem configured to receive electromagnetic radiation from a distant scene, a focal plane array configured to produce an image of the scene, and a programmable polarimetry subsystem electrically switchable between an ON state in which the polarimetry subsystem receives the electromagnetic radiation and provides polarized electromagnetic radiation to the focal plane array, and an OFF state in which the polarimetry system is configured as a first substantially clear aperture that passes the electromagnetic radiation to the focal plane array. In certain examples, the imager includes a programmable spectral imaging sub-system configurable between an ON state and an OFF state.
    Type: Grant
    Filed: July 24, 2014
    Date of Patent: April 25, 2017
    Assignee: RAYTHEON COMPANY
    Inventor: Terry Dorschner
  • Patent number: 9632345
    Abstract: A transmissive liquid crystal (LC) control structure comprising: a superstrate (44) having a first surface (44a) having a GaN HEMT structure disposed thereon to provide a conductor on the first surface of said superstrate; a substrate (42) having a first surface disposed over and spaced apart from the first surface of said superstrate and having a GaN HEMT structure (43) disposed thereon to provide a conductor on the first surface of said substrate and wherein the GaN HEMT structure on one of the superstrate and substrate surfaces are patterned into individual electrodes; a polymer network liquid crystal (PNLC) (48) disposed in the space between the first surface of said superstrate and the first surface of said substrate; and a control circuit coupled to the individual electrodes.
    Type: Grant
    Filed: May 24, 2013
    Date of Patent: April 25, 2017
    Assignee: Raytheon Company
    Inventors: Terry A. Dorschner, Irl W. Smith, Amanda J. Kirchner, Steven R. Collins, Daniel P. Resler, Linda A. Palmaccio
  • Patent number: 9470953
    Abstract: An optical switch (10) is capable of routing a high-power beam incident at one or more input ports (12) of the optical switch to either of two or more output ports (14,16), the optical switch comprising: at least one switching stage, each of the at least one switching stages comprising: a switchable high-power liquid crystal (LC) half-wave plate (HWP), oriented with its fast axis at 45° to an input polarization direction such that in response to an incident polarized laser beam provided to said switchable high-power liquid crystal, half-wave plate, said HWP acts as a polarization rotator; and a polarizing beam splitter (PBS) disposed in an optical path to intercept light signals output from said switchable high-power liquid crystal (LC) half wave plate (HWP).
    Type: Grant
    Filed: May 24, 2013
    Date of Patent: October 18, 2016
    Assignee: Raytheon Company
    Inventors: Irl W. Smith, Terry A. Dorschner
  • Publication number: 20160252796
    Abstract: An optical system capable of routing primary and secondary high power lasers through a blocking switch is described.
    Type: Application
    Filed: May 12, 2016
    Publication date: September 1, 2016
    Inventors: Irl W. Smith, Terry A. Dorschner
  • Publication number: 20150185584
    Abstract: An optical switch (10) is capable of routing a high-power beam incident at one or more input ports (12) of the optical switch to either of two or more output ports (14,16), the optical switch comprising: at least one switching stage, each of the at least one switching stages comprising: a switchable high-power liquid crystal (LC) half-wave plate (HWP), oriented with its fast axis at 45° to an input polarization direction such that in response to an incident polarized laser beam provided to said switchable high-power liquid crystal, half-wave plate, said HWP acts as a polarization rotator; and a polarizing beam splitter (PBS) disposed in an optical path to intercept light signals output from said switchable high-power liquid crystal (LC) half wave plate (HWP).
    Type: Application
    Filed: May 24, 2013
    Publication date: July 2, 2015
    Inventors: Irl W. Smith, Terry A. Dorschner
  • Publication number: 20150168210
    Abstract: A programmable multifunction spectral and/or polarization imager. In one example, such an imager includes an imaging optical subsystem configured to receive electromagnetic radiation from a distant scene, a focal plane array configured to produce an image of the scene, and a programmable polarimetry subsystem electrically switchable between an ON state in which the polarimetry subsystem receives the electromagnetic radiation and provides polarized electromagnetic radiation to the focal plane array, and an OFF state in which the polarimetry system is configured as a first substantially clear aperture that passes the electromagnetic radiation to the focal plane array. In certain examples, the imager includes a programmable spectral imaging sub-system configurable between an ON state and an OFF state.
    Type: Application
    Filed: July 24, 2014
    Publication date: June 18, 2015
    Inventor: Terry Dorschner
  • Publication number: 20150146139
    Abstract: A transmissive liquid crystal (LC) control structure comprising: a superstrate (44) having a first surface (44a) having a GaN HEMT structure disposed thereon to provide a conductor on the first surface of said superstrate; a substrate (42) having a first surface disposed over and spaced apart from the first surface of said superstrate and having a GaN HEMT structure (43) disposed thereon to provide a conductor on the first surface of said substrate and wherein the GaN HEMT structure on one of the superstrate and substrate surfaces are patterned into individual electrodes; a polymer network liquid crystal (PNLC) (48) disposed in the space between the first surface of said superstrate and the first surface of said substrate; and a control circuit coupled to the individual electrodes.
    Type: Application
    Filed: May 24, 2013
    Publication date: May 28, 2015
    Applicant: Raytheon Company
    Inventors: Irl W. Smith, Terry A. Dorschner, Amanda J. Kirchner, Steven R. Collins, Daniel P. Resler
  • Publication number: 20140268328
    Abstract: A stack of polarization gratings each having a grating pitch, the stack having a first end and a second end and, the polarization grating stack including N stages wherein one or more of the N stages in the stack comprise a first set of gratings which direct an incident beam through angles lying substantially in a first plane and one or more of the N stages in the stack comprise a second set of gratings which direct an incident beam through angles lying substantially in a second, different, plane lying at an angle relative to the first plane and wherein each of the N stages provide one of a plurality of deflection angles and wherein the N stages are arranged such that a stage having the smallest deflection angle is nearest the first end of the stack and a stage having the largest deflection angle is nearest the second end of the stack and wherein the deflection angles of the gratings in each set are chosen such that the grating pitch of each grating is at least one of: substantially twice the grating pitch of
    Type: Application
    Filed: March 13, 2013
    Publication date: September 18, 2014
    Inventors: Terry A. Dorschner, Irl W. Smith
  • Publication number: 20120081621
    Abstract: Described herein is the use of a fast-scanning optical phase array (OPA) within an electronic beam-steering-based aperture.
    Type: Application
    Filed: September 30, 2011
    Publication date: April 5, 2012
    Applicant: RAYTHEON COMPANY
    Inventors: Terry A. Dorschner, Irl W. Smith
  • Publication number: 20120068880
    Abstract: A system for tracking a target includes a dual-band antenna. The dual-band antenna includes a first antenna and a second antenna rigidly coupled to the first antenna. The first antenna is configured to communicate within a first frequency band and the second antenna is configured to communicate within a second frequency band. The system further includes a processing system having a first antenna control processor configured to initialize a pointing direction to point a beam of the first antenna toward the target with a first degree of pointing accuracy, and configured to scan with the first antenna to point the beam of the first antenna more precisely toward the target with a second degree of pointing accuracy, and further having a second antenna control processor configured to electronically scan with the second antenna to point a beam of the second antenna to the target with a third degree of pointing accuracy.
    Type: Application
    Filed: September 17, 2010
    Publication date: March 22, 2012
    Applicant: RAYTHEON COMPANY
    Inventors: Johan A. Kullstam, Terry A. Dorschner
  • Publication number: 20080031627
    Abstract: An optical communication system having nodes that include add/drop units. The add/drop unit includes: a network input port for receiving optical energy having a plurality of different wavelengths from other nodes in the network; a network output port for coupling to destination nodes in the network; an add port for receiving optical energy having the plurality of different wavelengths from a local source for transmission to other nodes in the network; and a drop node for receiving optical energy from other nodes in the network for local processing. A wavelength demultiplexer is included to separate the plurality of wavelengths received by the network input port so that the electronically controllable beam steerer can process them individually. A wavelength multiplexer is included to combine the plurality of wavelengths received from the electronically controlled beam steerer for delivery to the network output port for transmission to other nodes in the network.
    Type: Application
    Filed: August 4, 2006
    Publication date: February 7, 2008
    Inventors: Irl W. Smith, William J. Miniscalco, Terry A. Dorschner
  • Patent number: 6810164
    Abstract: A data communication system comprising a plurality of fiber optic cables and a fiber optic switching system, comprising: a support structure for securing light emitting/light receiving ends of the plurality of fiber optic cables in predetermined positions; and, means for re-directing light emitted from the light emitting/light receiving end of one of the fiber optic cables to the light emitting/light receiving ends of one, or more than one, of a plurality of the plurality of fiber optic cables. The re-directing means includes means for collimating and directing the light emitted from the end of one of the cables as a beam propagating along a predetermined direction and for re-directing the beam towards the end of another one of the cables selectively in accordance with an electrical signal. More particularly, the re-directing means includes electro-optical phase shifting medium, preferably liquid crystal molecules.
    Type: Grant
    Filed: February 3, 2004
    Date of Patent: October 26, 2004
    Assignee: Raytheon Company
    Inventors: Terry A. Dorschner, Lawrence J. Friedman, Douglas S. Hobbs, L. Q. Lambert, Jr.
  • Publication number: 20040156641
    Abstract: A data communication system comprising a plurality of fiber optic cables and a fiber optic switching system, comprising: a support structure for securing light emitting/light receiving ends of the plurality of fiber optic cables in predetermined positions; and, means for re-directing light emitted from the light emitting/light receiving end of one of the fiber optic cables to the light emitting/light receiving ends of one, or more than one, of a plurality of the plurality of fiber optic cables. The re-directing means includes means for collimating and directing the light emitted from the end of one of the cables as a beam propagating along a predetermined direction and for re-directing the beam towards the end of another one of the cables selectively in accordance with an electrical signal. More particularly, the re-directing means includes electro-optical phase shifting medium, preferably liquid crystal molecules.
    Type: Application
    Filed: February 3, 2004
    Publication date: August 12, 2004
    Inventors: Terry A. Dorschner, Lawrence J. Friedman, Douglas S. Hobbs, L.Q. Lambert
  • Patent number: 6704474
    Abstract: A data communication system comprising a plurality of fiber optic cables and a fiber optic switching system, comprising: a support structure for securing light emitting/light receiving ends of the plurality of fiber optic cables in predetermined positions; and, means for re-directing light emitted from the light emitting/light receiving end of one of the fiber optic cables to the light emitting/light receiving ends of one, or more than one, of a plurality of the plurality of fiber optic cables. The re-directing means includes means for collimating and directing the light emitted from the end of one of the cables as a beam propagating along a predetermined direction and for re-directing the beam towards the end of another one of the cables selectively in accordance with an electrical signal. More particularly, the re-directing means includes electro-optical phase shifting medium, preferably liquid crystal molecules.
    Type: Grant
    Filed: August 8, 2002
    Date of Patent: March 9, 2004
    Assignee: Raytheon Company
    Inventors: Terry A. Dorschner, Lawrence J. Friedman, Douglas S. Hobbs, L. Q. Lambert, Jr.
  • Patent number: 5963682
    Abstract: A data communication system comprising a plurality of fiber optic cables and a fiber optic switching system, comprising: a support structure for securing light emitting/light receiving ends of the plurality of fiber optic cables in predetermined positions; and, means for re-directing light emitted from the light emitting/light receiving end of one of the fiber optic cables to the light emitting/light receiving ends of one, or more than one, of a plurality of the plurality of fiber optic cables. The re-directing means includes means for collimating and directing the light emitted from the end of one of the cables as a beam propagating along a predetermined direction and for re-directing the beam towards the end of another one of the cables selectively in accordance with an electrical signal. More particularly, the re-directing means includes electro-optical phase shifting medium, preferably liquid crystal molecules.
    Type: Grant
    Filed: March 7, 1997
    Date of Patent: October 5, 1999
    Assignee: Raytheon Company
    Inventors: Terry A. Dorschner, Lawrence J. Friedman, Douglas S. Hobbs
  • Patent number: 5412475
    Abstract: A ring laser gyro uses a nonplanar path having at least one plane of mirror symmetry and two pathlength control mirrors in order to reduce scatter variations occurring during the operation of the laser gyro. The mirrors used to produce such path are fixed to an isotropic supporting block having passages therein that define the path segments and the mirrors are moved out or in by the expansion or contraction of the block. The two pathlength control mirrors are disposed diagonally opposite each other on the plane of mirror symmetry, and are placed on substrates whose positions are controllable, each substrate being coupled to means for controlling the positions of the substrates as a function of the pathlength. With such a mirror configuration, the pathlength may be held constant by a suitable control means and the relative movement of the mirrors constrains movement, with respect to the mirrors, of the beams circulating in the path to directions perpendicular to the planes of incidence on the mirrors.
    Type: Grant
    Filed: February 23, 1989
    Date of Patent: May 2, 1995
    Assignee: Raytheon Company
    Inventors: Irl W. Smith, Terry A. Dorschner
  • Patent number: 5333046
    Abstract: A ring laser gyro uses a nonplanar path having at least one plane of mirror symmetry and two pathlength control mirrors in order to reduce scatter variations occurring during the operation of the laser gyro. The mirrors used to produce such path are fixed to an isotropic supporting block having passages therein that define the path segments and the mirrors are moved out or in by the expansion or contraction of the block. The two pathlength control mirrors are disposed diagonally opposite each other on the plane of mirror symmetry, and are placed on substrates whose positions are controllable, each substrate being coupled to means for controlling the positions of the substrates as a function of the pathlength. With such a mirror configuration, the pathlength may be held constant by a suitable control means and the relative movement of the mirrors constrains movement, with respect to the mirrors, of the beams circulating in the path to directions perpendicular to the planes of incidence on the mirrors.
    Type: Grant
    Filed: August 27, 1982
    Date of Patent: July 26, 1994
    Assignee: Raytheon Company
    Inventors: Irl W. Smith, Terry A. Dorschner, Vincenzo D. Pitruzzella
  • Patent number: 5253033
    Abstract: An optical beam steering device for use in a single-aperture laser transceiver system provides deflection of the transmitted and received beams in two planes, while maintaining the distinctive identities of each channel respective to their polarizations. The invention utilizes four single-dimensional beam deflecting devices, two for each orthogonal linear polarization of the two transceiver channels, one of these for each steering axis. In addition, a 90.degree. polarization rotator and a quarter-wave plate are included in the arrangement of beam deflecting devices to satisfy the polarization requirements of these devices and of the transceiver channels.
    Type: Grant
    Filed: April 9, 1992
    Date of Patent: October 12, 1993
    Assignee: Raytheon Company
    Inventors: W. M. Lipchak, Terry A. Dorschner
  • Patent number: 5126869
    Abstract: An optical beam steering device for use in a single-aperture laser transceiver system provides deflection of the transmitted and received beam in two planes, while maintaining the distinctive identities, of each channel respective to their polarizations. The invention utilizes four single-dimensional beam deflecting devices, two for each orthogonal linear polarization of the two transceiver channels, one of these for each steering axis. In addition, a 90.degree. polarization rotator and a quarter-wave plate are included in the arrangement of beam deflecting devices to satisfy the polarization requirements of these devices and of the transceiver channels.
    Type: Grant
    Filed: December 3, 1990
    Date of Patent: June 30, 1992
    Assignee: Raytheon Company
    Inventors: W. Michael Lipchak, Terry A. Dorschner