Optical: systems and elements – Holographic system or element – Using a hologram as an optical element
Reexamination Certificate
2006-03-16
2009-08-04
Amari, Alessandro (Department: 2872)
Optical: systems and elements
Holographic system or element
Using a hologram as an optical element
C359S267000, C359S634000, C348S757000, C353S098000
Reexamination Certificate
active
07570404
ABSTRACT:
An image presentation device (100) incorporates an optical combiner (130) that utilizes a multi-state optical switch (131, 137) for use with a plurality of colored light sources (122, 124,126). The switch (131,137) includes an electronically switchable holographic optical element HOE (131) having a first and a second mode of operation. Light from first and second light sources (124, 126) passes through HOE (131) in a diffracted manner in at least one of the first and second modes of operation. Light from a third light source (122) is reflected by a reflector (137) in a third mode of operation. The combiner (130) operates to combine light from the various light sources (122, 124, 126) into a common light path.
REFERENCES:
patent: 5875012 (1999-02-01), Crawford et al.
patent: 6166800 (2000-12-01), Silverstein et al.
patent: 6373603 (2002-04-01), Popovich et al.
patent: 6678078 (2004-01-01), Popovich et al.
patent: 2001/0019434 (2001-09-01), Popovich et al.
Li Lin
Morejon Israel J.
O'Sullivan Evan
Amari Alessandro
Delaware Corporation
Jabil Circuit, Inc.
Price Heneveld Cooper DeWitt & Litton LLP
LandOfFree
Multi-state optical switch and combiner for use in a light... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Multi-state optical switch and combiner for use in a light..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Multi-state optical switch and combiner for use in a light... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4077616