Optics: image projectors – Reflector – Plural
Reexamination Certificate
2006-08-29
2006-08-29
Dowling, William C. (Department: 2851)
Optics: image projectors
Reflector
Plural
C353S079000, C353S122000, C248S343000
Reexamination Certificate
active
07097310
ABSTRACT:
A ceiling-mounted projection system has a projector mounted above the ceiling, and a periscope assembly that can be moved by a motor along a vertical axis between a raised position in which the periscope assembly is retracted into the ceiling and a lowered position in which the lower portion of the periscope assembly extends below the ceiling. An upper mirror is mounted on the upper portion of the periscope assembly and aligned to reflect images from the projector in a downward direction when the periscope assembly is in the lowered position. A lower mirror is mounted on the lower portion of the periscope assembly and aligned to reflect the images from the upper mirror onto a viewing surface when the periscope assembly is in the lowered position.
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Bowers Kenneth Allen
Duarte Lawrence Alexander
Perkins Eric John
Perkins Mervin Bruce
Display Devices, Inc.
Dorr, Carson & Birney, P.C.
Dowling William C.
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