Patents Assigned to Marvin Lyle Shafer
  • Device to reduce eye strain
    Patent number: 6139149
    Abstract: The invention is a method of using a moving, three-dimensional air sculpture which, when used in close proximity, by the fact that it is attached directly, to a computer monitor or a video display terminal, will relieve eye strain resulting from fixed plane focus. In this way the computer operator can pleasurably reverse the symptoms of eye fatigue and stress by viewing the invention and inadvertently engage in an eye exercise program.
    Type: Grant
    Filed: November 3, 1999
    Date of Patent: October 31, 2000
    Assignee: Marvin Lyle Shafer
    Inventors: Marvin Lyle Shafer, Michelle Carol Shafer