Patents Assigned to Instrument Flight Research
  • Laser protection goggles
    Patent number: 4462661
    Abstract: The invention is a laser ray eye protection device comprised of a laser detector, voltage controlled lens or lenses, and related interconnecting circuitry. The lenses remain in the normally transparent state until a laser ray is sensed by the detector which energizes the lenses into a state of opacity by the interconnecting circuitry. The invention may take on numerous specific embodiments. Various partial modifications and combinations thereof are described.
    Type: Grant
    Filed: February 23, 1982
    Date of Patent: July 31, 1984
    Assignee: Instrument Flight Research
    Inventor: Frank Witt