Patents Assigned to Ciaudelli Productions, Inc.
  • Narrow angle hologram device and method of manufacturing same
    Patent number: 8218213
    Abstract: A method of manufacturing a master for producing a hologram device. A first master is produced with a compensating angle. The second master is produced from the first master with an index matching material to reduce the interference pattern caused by internal reflections within the holographic plate of the master. The hologram device has a relatively narrow angle of reconstruction to provide visibility from a nearly perpendicular light source such as the headlight of an on-coming vehicle.
    Type: Grant
    Filed: July 2, 2007
    Date of Patent: July 10, 2012
    Assignee: Ciaudelli Productions, Inc
    Inventors: Joseph J. Ciaudelli, Ikuo Nakamura, Ana Maria Nicholson
  • Narrow angle hologram device and method of manufacturing same
    Patent number: 7259899
    Abstract: A method of manufacturing a master for producing a hologram device. A first master is produced with a compensating angle. The second master is produced from the first master with an index matching material to reduce the interference pattern caused by internal reflections within the holographic plate of the master. The hologram device has a relatively narrow angle of reconstruction to provide visibility from a nearly perpendicular light source such as the headlight of an on-coming vehicle.
    Type: Grant
    Filed: September 24, 2004
    Date of Patent: August 21, 2007
    Assignee: Ciaudelli Productions, Inc.
    Inventors: Joseph J. Ciaudelli, Ikuo Nakamura, Ana Maria Nicholson