Optical: systems and elements – Holographic system or element – Using a hologram as an optical element
Reexamination Certificate
2006-12-26
2006-12-26
Chang, Audrey (Department: 2872)
Optical: systems and elements
Holographic system or element
Using a hologram as an optical element
C359S032000, C359S020000, C359S024000
Reexamination Certificate
active
07154647
ABSTRACT:
The invention relates to a color hologram display an image of a three-dimensional object and a hologram image of a pattern of plane characters, images or the like are recorded in the same volume type hologram photosensitive material in a superposed or multiplexed fashion. A color hologram display27′comprising a combined reflection and volume type of single layer, wherein a color pattern29gof plane characters, images or the like and a color three-dimensional subject image O″ are reconstructably recorded while spatially superposed one upon another.
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patent: 4888260 (1989-12-01), Cowan
patent: 5499118 (1996-03-01), Wreede et al.
patent: 5956164 (1999-09-01), Waitts
patent: 6052209 (2000-04-01), Nishikawa
patent: 6097514 (2000-08-01), Nishikawa
patent: 2001/0053004 (2001-12-01), Nishikawa et al.
Kodama Daijiro
Takabayashi Emi
Watanabe Masachika
Chang Audrey
Dai Nippon Printing Co. Ltd.
patenttm.us
Walters James H.
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