Area lighting system for near uniform illumination of a square h

Details Area lighting system for near uniform illumination of a square h Area lighting system for near uniform illumination of a square h

1994-04-14

1994-11-08

Cole, Richard R.

Illumination

Light source and modifier

Including reflector

362261, 362298, 362346, F21V 709

Patent

active

053632931

ABSTRACT:
An embodiment of the present invention is a luminaire for roughly uniform illumination of a square area without side glare. The luminaire uses a horizontally oriented arc tube lamp. A basket reflector surrounds the arc tube lamp and directs light out in a square pattern. A top aperture in the basket reflector is opposite to the illuminated square area. A bottom aperture, positioned in the basket reflector, permits light from the arc tube lamp to pass out to the illuminated square area. A center reflector is centrally positioned above the top aperture and has bow-tie shaped body and a pair of ends that are orthogonally oriented to the arc tube lamp. A pair of side reflectors with a plurality of faceted reflective surfaces receive light from the arc tube lamp that has been reflected from the center reflector. The side reflectors are positioned at opposite points outside the basket structure and are centered along a line perpendicular to the arc tube lamp. A pair of tertiary reflectors are respectively disposed between the basket structure and the side reflectors and each have two reflective surfaces for directing light from the middle faceted reflective surfaces of the side reflectors out along the axis of the arc tube lamp.

REFERENCES:
patent: 2356592 (1944-08-01), Kolbert et al.
patent: 3215829 (1965-11-01), Collins et al.
patent: 3329812 (1967-07-01), Harling
patent: 4002894 (1977-01-01), Kintz
patent: 5134557 (1992-07-01), Gordin et al.

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