Optical: systems and elements – Holographic system or element – Using a hologram as an optical element
Reexamination Certificate
2011-04-12
2011-04-12
Allen, Stephone B (Department: 2872)
Optical: systems and elements
Holographic system or element
Using a hologram as an optical element
C359S575000
Reexamination Certificate
active
07924485
ABSTRACT:
A holographic light guide plate has a transparent substrate and a plurality of diffraction patterns formed thereon. The diffraction patterns are arranged on one of a top surface and a bottom surface of the transparent substrate. The diffraction patterns diffract light incident on the transparent substrate. Each of the diffraction patterns has a continuously varying interval.
REFERENCES:
patent: 5742433 (1998-04-01), Shiono et al.
patent: 6773126 (2004-08-01), Hatjasalo et al.
patent: 6865319 (2005-03-01), Painchaud
patent: 2006/0279963 (2006-12-01), Kim et al.
Lee Hong-seok
Park Seung-ryong
Song Seok-Ho
Allen Stephone B
Chapel Derek S
Samsung Electronics Co,. Ltd.
Sughrue & Mion, PLLC
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