Patents by Inventor Lewis R. Andrews

Lewis R. Andrews 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).

  • Combination laser designator and boresighter system for a high-energy laser
    Patent number: 4776691
    Abstract: Means including a single comparatively low-power laser and cooperative optics are disclosed for both designating and boresighting a comparatively high-power laser with an intended target object.
    Type: Grant
    Filed: October 28, 1985
    Date of Patent: October 11, 1988
    Assignee: The Charles Stark Draper Laboratory, Inc.
    Inventors: William M. Johnson, Lewis R. Andrews, Edward Bernardon
  • Limited diffraction feedback laser system having a cavity turbulence monitor
    Patent number: 4774473
    Abstract: A low diffraction-feedback high-energy laser system includes an injection laser, and a master power amplifier (MOPA). The master oscillator power amplifier preferably includes a convex and a concave cavity reflector. A sensor mounted to the convex reflector is operative to provide a signal indication of cavity turbulence.
    Type: Grant
    Filed: October 28, 1985
    Date of Patent: September 27, 1988
    Assignee: The Charles Stark Draper Laboratory, Inc.
    Inventors: William M. Johnson, Lewis R. Andrews, Edward Bernardon