US 4,364,105 AGranted

Stacked fixtures with angularly positioned lamps and downwardly light-directing reflectors

AssigneeEsquire, Inc.

InventorAlbert C. McNamara, Jr.

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Abstract

An improved light fixture comprising a housing adapted for tower or pole top mounting and having preferably stacked upper and lower lamp compartments. One reflector in each compartment includes a segment that is located partly behind and partly over a symmetrically positioned lamp included therein so as to reflect light therefrom downwardly and outwardly through a window in a side wall opposite to the reflector. Another reflector similarly located reflects light through a second window in an opposite side wall. Windows in the other two side walls also receive light emanations from the lamp. The axis to the lamp in each compartment is substantially horizontal and is skewed with respect to the side wall windows. The lamp in one compartment is preferably complementarily positioned with respect to the lamp in the other compartment.

Claims7

Dependent claims

A light fixture for bidirectional long range illumination of ground surfaces without significant light-dark boundaries and with reduced shadow effects comprising:

(a) a housing adapted to be mounted in an upright position above the ground surface and said housing having parallel opposite placed vertical windows in a rectangular lamp compartment;
(b) an electrical socket in said compartment to receive the electrical end of a lamp having an elongated arc, and said lamp placed substantially horizontally with its axis residing diagonally across said lamp compartment between said windows;
(c) reflector means carried on the inner side at the top of said lamp compartment;
(d) said reflector means comprising side by side reflector halves symmetrically positioned relative to a center line of the top of said lamp compartment, each reflector half including a parabolic reflector segment extending laterally from the middle of the top of said lamp compartment to adjacent said windows and a cylindrical reflector segment extending downwardly from each said parabolic reflector segment and terminating tangentially at said window adjacent thereto,
whereby each said parabolic reflector segment reflects light from said lamp towards both near and opposite windows and each said cylindrical reflector segment reflects light primarily across said light compartment through said window opposite to it.

2 more elements

Dependencies are inferred from the claim text.