Patents Assigned to Australian Electro Optics Pty. Limited
  • Laser beam product marking system
    Patent number: 4586053
    Abstract: The invention concerns a system for marking information on items particularly mass produced items. The message to be marked is generated on a high resolution cathode ray tube screen. The image is then coupled into the input end of a liquid crystal light valve and the incoherent image converted to a coherent image by using a laser beam and then separated by a light polarizer into positive and negative images. The separated images are then used to mark a message on the surface of an object.
    Type: Grant
    Filed: May 16, 1984
    Date of Patent: April 29, 1986
    Assignee: Australian Electro Optics Pty. Limited
    Inventor: John L. Hughes