Patents by Inventor W. Michael Lipchak

W. Michael Lipchak 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: 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 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
  • Patent number: 4643575
    Abstract: An interferometer wherein detected local oscillator beam power is variable without varying detected target-reflected return beam power. A P-polarized beam of energy is produced along a predetermined path. First and second waveplates are serially disposed in the predetermined path. Also included are a beamsplitter disposed in the path between the first and second waveplates, and a polarization analyzer disposed in the path between the beam producing means and the first waveplate. A first portion of the P-polarized beam couples through the first waveplate, the beamsplitter and the second waveplate, and is transmitted to a target, the first and second waveplates altering the polarization of the transmitted beam to circular polarization.
    Type: Grant
    Filed: September 4, 1984
    Date of Patent: February 17, 1987
    Assignee: Raytheon Company
    Inventors: Michael B. Hazeltine, W. Michael Lipchak, Jr.