Optics: image projectors – Lens support – Lens position adjustable
Reexamination Certificate
2004-11-23
2009-02-17
Dowling, William C. (Department: 2851)
Optics: image projectors
Lens support
Lens position adjustable
C353S122000
Reexamination Certificate
active
07490942
ABSTRACT:
A projector with automatic focusing assistance includes a focus control for controlling the focus of optics of the projector, and a focus control use sensor. The projector automatically displays a focus assistance element when the focus control use sensor detects use of the focus control. A method of operating a projector includes automatically displaying a focus assistance element when a focus control of the projector is used.
REFERENCES:
patent: 3709609 (1973-01-01), Spengler et al.
patent: 4124285 (1978-11-01), Johnson et al.
patent: 4426726 (1984-01-01), Cheetham
patent: 4647208 (1987-03-01), Bieman
patent: 4794430 (1988-12-01), Whittaker et al.
patent: 4820161 (1989-04-01), Wescott
patent: 4895448 (1990-01-01), Laird
patent: 5181323 (1993-01-01), Cooper
patent: 6034764 (2000-03-01), Carter
patent: 6050690 (2000-04-01), Shaffer et al.
patent: 6113240 (2000-09-01), Iizuka
patent: 6483555 (2002-11-01), Thielemans et al.
patent: 6592228 (2003-07-01), Kawashima et al.
patent: 6935754 (2005-08-01), Salvatori et al.
patent: 7165849 (2007-01-01), Masuzawa et al.
patent: 2001/0017604 (2001-08-01), Jacobsen et al.
patent: 2002/0113946 (2002-08-01), Kitaguchi et al.
patent: 2003/0038822 (2003-02-01), Raskar
patent: 2003/0223109 (2003-12-01), Deverin et al.
patent: 2004/0021836 (2004-02-01), Hamada
patent: 2005/0046804 (2005-03-01), Akutsu
patent: 2005/0062939 (2005-03-01), Tamura
patent: 2005/0099609 (2005-05-01), Masuzawa et al.
patent: 2005/0124387 (2005-06-01), Ribeiro et al.
patent: 2006/0097992 (2006-05-01), Gitzinger et al.
patent: 2000-040651 (2000-09-01), None
patent: 2001-083600 (2001-07-01), None
patent: 2003-037714 (2003-05-01), None
patent: 2003037714 (2003-05-01), None
Derwent 2003-694445 (partial translation of Korean patent publication KR 2003037714).
English translation of KR 2003037714.
Dowling William C.
Hewlett--Packard Development Company, L.P.
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