Luminaire having a faceted reflecting surface

Details Luminaire having a faceted reflecting surface Luminaire having a faceted reflecting surface

1987-12-04

1989-08-08

Husar, Stephen F.

Illumination

Light modifier

Reflector

362217, 362346, 350630, F21V 700

Patent

active

048558869

ABSTRACT:
Luminaire provided with a bowl-shaped reflector for an elongated light-emitting part of a light source to be arranged substantially on the principal axis of said reflector. The reflector has a reflecting surface composed of elongated facets whose longitudinal sides extend from adjacent the center to the peripheral edge of the reflector. The facets are concavely curved in a cross-section comprising the principal axis and are straight in a plane at right angles to the peripheral axis and constitute a regular polygon, the axis of symmetry of a facet extending in accordance with a curve approaching the shape of a parabola.

REFERENCES:
patent: 4447865 (1984-05-01), VanHorn et al.
patent: 4494176 (1985-01-01), Sands et al.

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