Optics: image projectors – Light shield – mask – hood – or diaphragm
Reexamination Certificate
2011-07-19
2011-07-19
Dowling, William C (Department: 2878)
Optics: image projectors
Light shield, mask, hood, or diaphragm
C353S121000, C353S028000
Reexamination Certificate
active
07980707
ABSTRACT:
An apparatus and method for an audience scanning laser display projector includes a laser projector capable of generating a laser beam output having a predetermined beam path, scan area and beam wavelength. A beam position sensor is associated with said laser projector. A camera capable of capturing an image of the audience using light of a wavelength other than the beam wavelength, is disposed relative to said laser projector so that the captured image includes the area scanned by the laser beam. A processor is operably connected with said laser projector, said beam position sensor and said camera, said processor generating a table corresponding to the camera image of the audience, and containing software capable of identifying location of faces in the audience image and comparing face locations with beam position so as to signal said laser projector to attenuate the beam when scanning over a face location.
REFERENCES:
patent: 6002505 (1999-12-01), Kraenert et al.
patent: 6460999 (2002-10-01), Suzuki
patent: 6575581 (2003-06-01), Tsurushima
patent: 6984039 (2006-01-01), Agostinelli
patent: 7325933 (2008-02-01), Kaise et al.
Allen Dyer Doppelt Milbrath & Gilchrist, P.A.
Dowling William C
LandOfFree
Audience scanning laser display projector and associated... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Audience scanning laser display projector and associated..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Audience scanning laser display projector and associated... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2726820