Patents Examined by Bruce Shapiro
  • Holographic endoscope
    Patent number: 4589723
    Abstract: A holographic endoscope transmits light to an object and receives and transmits the image of that object. The light transmitted is used to illuminate an object with one of two beams which are derived from a single laser, while the image received is transmitted from the object. The light from the image transmitted passes through a field lens, and a second beam or reference beam is made to interfere with this light. The resulting interference pattern is recorded on a photographic plate, forming the hologram.
    Type: Grant
    Filed: April 24, 1984
    Date of Patent: May 20, 1986
    Assignee: Fuji Photo Optical Co., Ltd.
    Inventors: Yoshikazu Doi, Masane Suzuki, Yasumasa Sunaga