Abstract: A method for producing and replaying a color holographic image. The method includes multiple hologram films, each film containing content replayed at a viewing angle or range of viewing angle in primarily one or more replay color(s), replay being caused by reference beam(s) of substantially the film's replay color(s) incident upon the film at reference angle(s) outside the viewing angle(s). The method also includes angularly-dependent color filters between the hologram films. Each filter substantially transmits the replay color(s) of preceding hologram film(s) within the viewing angles, blocks the replay color(s) of succeeding hologram film(s) within the viewing angles, transmits the replay color(s) of succeeding hologram film(s) at angle(s) close to the replay angle(s) of succeeding hologram film(s), and blocks the replay color(s) of the immediately preceding hologram film at angle(s) close to the replay angle(s) of the immediately preceding hologram film.
Type:
Grant
Filed:
December 10, 2009
Date of Patent:
July 22, 2014
Assignee:
Holorad, LLC
Inventors:
Stephen J. Hart, Daniel L. Burman, Dinesh D. Padiyar, Joyce A. Padiyar
Abstract: A method for producing and replaying a composite color hologram, the method comprising recording a first hologram containing primarily a green content of an intended composite hologram using a substantially collimated recording reference beam, recording a second hologram containing primarily a blue content of the intended composite hologram using a substantially collimated recording reference beam, recording a third hologram containing primarily a red content of the intended composite hologram, transmitting, using a first filter, at least a portion of wavelengths close to Ar at a broad range of angles about an intended viewing angle of the intended composite hologram, blocking, using the first filter, at least a portion of wavelengths close to Ar at angles close to Or, transmitting, using the first filter, at least a portion of wavelengths close to Ab only at angles close to Ob and/or Ag only at angles close to Og
Type:
Application
Filed:
December 10, 2009
Publication date:
October 27, 2011
Applicant:
Holorad, LLC
Inventors:
Stephen J. Hart, Daniel L. Burman, Paul R. Borgmeier, Anthony Romrell, James D. Isaacson, Dinesh D. Padiyar, Joyce A. Padiyar