Illumination – Light source and modifier – Including reflector
Reexamination Certificate
2011-07-12
2011-07-12
Sawhney, Hargobind S (Department: 2885)
Illumination
Light source and modifier
Including reflector
C362S262000
Reexamination Certificate
active
07976198
ABSTRACT:
An apparatus, method, and system to provide, as one example, up-light for aerial viewing from downwardly aimed wide area, high intensity, lighting fixtures. The method controls a small percentage of light from the fixture to pass up and away for up-light, with the remainder used to produce a controlled, concentrated beam to a target. Some embodiments include a substantial amount of glare and spill light control. An apparatus can include a lamp and fixture with a visor length that is shorter than most conventional spill and glare control visors. The visor allows a controlled, relatively small percentage of direct light from the fixture for a desired or needed level of aerial illumination, but efficiently directs other light to the target. Optionally, a reflective plate is positioned inside the visor to reflect a small percentage of light from the fixture upwardly for up-light. Another embodiment can shift a fraction of light in direction(s) different than the main light output of the fixture.
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Musco Lighting, “SportsCluster2” at http://www.musco.com/permanent/sportscluster2.html (2 pages).
Musco Lighting, “Total Light Control” at http://www.musco.com/permanent/tlc.html (2 pages).
Musco Lighting, “Level 8” at http://www.musco.com/permanent/level8.html (2 pages).
McKee Voorhees & Sease, P.L.C.
Musco Corporation
Sawhney Hargobind S
LandOfFree
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