Indirect lighting fixture
AssigneeLitecontrol Corporation
InventorJohn M. Cole, Jr.
Life of this patent
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Abstract
An indirect fluorescent luminaire with planar specular reflectors arranged in such a manner as to project its maximum intensity approximately at 130.degree. above nadir to optimize the uniformity of ceiling luminance. The lamps are stacked vertically to further minimize the vertical projection of intensity and enhance the lateral projection. The fixture may be suspended at distances of 12 inches or less from the ceiling without causing excessive luminance on the ceiling above the luminaire or excessive luminance ratios between the brightest area directly over the fixture and a point midway between them.
Claims5
An indirect fluorescent multiple tube light fixture for mounting a distance below a ceiling surface comprising an elongated rectangular housing having a flat bottom wall, linear fluorescent tubes mounted to define a lower tube and an upper tube, V-shaped elongated side reflectors arranged parallel to the tubes, the angle formed by the lower portion and the bottom wall being selected to direct light energy from the lower tube at an angle approximately 130.degree. above nadir and above the upper tube and the angle formed by the upper portion of the reflector being selected to direct light energy at an angle sufficient to clear and be above the upper tube approximately 100.degree. above nadir whereby the flux output of both lamps and reflectors is combined in a beam pattern centered about 130.degree. above nadir and a substantially uniform pattern of luminance is provided on the ceiling.
Dependencies are inferred from the claim text.