Illumination – Light source and modifier – Including reflector
Patent
1993-03-11
1994-05-17
Cole, Richard R.
Illumination
Light source and modifier
Including reflector
362301, 362346, 362359, F21V 700
Patent
active
053133790
ABSTRACT:
An asymmetric luminaire for illuminating large outdoor areas, such as an athletic field, wherein glare and light spillage is minimized and controlled. The luminaire includes a reflecting surface of a generally parabolic configuration, and an arc light source is located within the luminaire, the length of the light source being disposed at approximately 45.degree. with respect to the parabolic axis. A visor is used at the peripheral rim of the luminaire to control vertical and lateral light spillage, and the visor includes light source shields to prevent vertical spillage from the upper region of the luminaire. The luminaire reflecting surface includes a plurality of elliptical light reflecting ridges for restricting the near light beam height, and the upper portion of the reflecting surface can include substantially conical concentric light reflecting flute surfaces for accurately directing the light to target locations remote from the luminaire.
REFERENCES:
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patent: 4799136 (1989-01-01), Molnar
patent: 4816974 (1989-03-01), Gordin
patent: 4864476 (1989-09-01), Lemons et al.
patent: 4947303 (1990-08-01), Gordin et al.
patent: 5016150 (1991-05-01), Gordin et al.
patent: 5134557 (1992-07-01), Gordin et al.
Lemons Thomas M.
Spink Kenneth M.
Cole Richard R.
Qualite Sports Lighting, Inc.
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