Illumination – Light modifier – Reflector
Patent
1985-03-25
1986-11-04
Wolfe, Jr., Willis R.
Illumination
Light modifier
Reflector
362241, 362248, 362291, 362292, F21V 1106, F21V 1310
Patent
active
046213090
ABSTRACT:
An elongated luminaire is provided having at least one fluorescent lamp and a louver arranged therebelow. The louver consists of lamp-parallel longitudinal reflectors and reflecting cross-oriented lamellae arranged transversely thereto and subsequently of V-shape in cross section. The lamella legs have a parabolic shape in cross section. A light guiding plate is provided extending from one leg of each cross-oriented lamella, extending diagonally upwardly towards and almost adjacent to the lamp. Each light guiding plate substantially overlaps the interspace between neighboring cross-oriented lamella in the vertical projection. Thus, the entire light flux, emerging downwards, is directed, depending on the position of the cross-oriented lamellae and of the light guiding plates, in the desired direction into the lower hemisphere so that it is possible to obtain different light distribution curves of symmetrical or asymmetrical shape with characteristic preferred directions.
REFERENCES:
patent: 2169531 (1939-08-01), Jennings
patent: 3582642 (1971-06-01), Johansson
patent: 4238815 (1980-12-01), Price
patent: 4268897 (1981-05-01), Schierwagen et al.
patent: 4429354 (1984-01-01), Garnett
patent: 4494175 (1985-01-01), Gawad et al.
Illuminating Engineering article, "Designing Low Brightness Luminaires For Higher Lighting Levels", Sep. 1959, pp. 580-581.
Grawe Franz-Eugen
Grimm Manfred
Hasemann Fred
Schneppendahl Richard
Trilux-Lenze GmbH & Co. KG
Wolfe, Jr. Willis R.
LandOfFree
Elongated luminaire does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Elongated luminaire, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Elongated luminaire will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-699359