Optical: systems and elements – Holographic system or element – With optical waveguide
Patent
1996-12-18
1998-06-09
Dzierzynski, Paul M.
Optical: systems and elements
Holographic system or element
With optical waveguide
359 15, 359 18, 359 25, 34081556, 34081586, 362 23, 362 26, 362 27, G03H 100, G08B 500, G01D 1128
Patent
active
057643911
ABSTRACT:
A holographic display including a planar transparent light pipe (11) configured for rotation about a light pipe rotation axis that is orthogonal to the planar extent of the transparent light pipe and passes through a rotational center of the light, a multiple image hologram structure (13) having a plurality of holographic images attached to one side of the planar transparent light pipe, wherein the images are at different azimuthal angular positions on the light pipe about the light pipe rotation center, and a light source (17) for illuminating an input surface of the transparent light pipe such that an injected beam propagates within the light pipe to provide reconstruction illumination for a portion of the multiple image hologram structure. The azimuthal angular position of the transparent light pipe about the light pipe rotation axis determines which portions of the plurality of holographic images are reconstructed, and a mask (19) is provided for masking the light diffracted by the multiple image hologram structure.
REFERENCES:
patent: 4368946 (1983-01-01), Kaneko et al.
patent: 4848863 (1989-07-01), Kramer
patent: 5353735 (1994-10-01), Arai et al.
Alkov Leonard A.
Dzierzynski Paul M.
Lenzen, Jr. Glenn H.
Raytheon Company
Schuberg Darren E.
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