Patents by Inventor Kenneth J. Friedenthal

Kenneth J. Friedenthal 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: 5220159
    Abstract: An axisymmetric dome (28) located between a radiation emitting target (14) and a radiation sensor (10) has an outer surface area (33) where a principal ray (16) from the target (14) impinges on the dome (28) that is parallel to the dome inner surface area (31) where the principal ray leaves the dome. This dome construction reduces image aberration in the pitch plane (Y, Z'). For correction aberration in the roll plane, a focusing reflector (31) is constructed of a piezo-electric plate (32) with a plurality of spaced apart electrodes (38) on its non-reflective surface, which reflector (31) reflects radiation from the target (14) onto a secondary reflector (20) which, in turn, reflects the radiation onto the sensor (10). Selective electrical energization of the electrodes (38) modifies the reflector (31) shape to correct roll plane aberration.
    Type: Grant
    Filed: September 23, 1991
    Date of Patent: June 15, 1993
    Assignee: Hughes Aircraft Company
    Inventor: Kenneth J. Friedenthal
  • Patent number: 5035375
    Abstract: A fiber optic radar guided missile system 10 is disclosed which includes a radar receiver 12 disposed in a missile for receiving radar reflections and providing a first optical signal in response thereto. An optical receiver 14 is disposed at a launcher for receiving the first optical signal and for providing a set of electrical signals in response thereto. A fiber optic link 32 is connected between the missile and the launcher for communicating the first optical signal from the radar receiver 12 to the optical receiver 14.In a specific embodiment, the invention 10 includes a first system 12 disposed in a missile for receiving radar reflections which includes only an antenna 16 for receiving radar reflections, a radar seeker 18 for providing a first electrical in response to the received radar reflections, and a first fiber optic transmitter 26 for converting the first electrical signal into a first optical signal.
    Type: Grant
    Filed: December 19, 1988
    Date of Patent: July 30, 1991
    Assignee: Hughes Aircraft Company
    Inventors: Kenneth J. Friedenthal, Michael de La Chapelle, Hui-Pin Hsu