Claims
- 1. 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. The light fixture of claim 1 wherein said cylindrical reflector segments are fluted whereby light is reflected at a multitude of angles through said window opposite thereto.
- 3. The light fixture of claim 1 wherein said cylindrical reflector segments reflect light through said window opposite thereto at a high angle relative to the ground plane, and said angle being about 68 degrees.
- 4. The light fixture of claim 1 wherein said lamp compartment has said lamp positioned diagonally between the vertical edges at the intersecting windows.
- 5. The light fixture of claim 1 wherein said cylindrical reflector segments extend downwardly along said windows to below the light axis of said lamp whereby reflected light is precluded from being emitted skywardly as it exits said windows opposite to said cylindrical reflector segments.
- 6. The light fixture of claim 1 wherein:
- (a) the bottom of said lamp compartment is a divider plate to prevent stray light from migrating downwardly therefrom, and including;
- (b) a second housing adapted to be mounted in an upright position beneath said housing but above the ground surface and said second housing having parallel opposite placed vertical windows in a second rectangular lamp compartment;
- (c) an electrical socket in said second 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;
- (d) reflector means carried on the inner side of said divider plate at the top of said second lamp compartment;
- (e) said reflector means comprising side by side reflector halves symmetrically positioned relative to said lamp, each reflector half including a parabolic reflector segment extending laterally from the middle of said second 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 second light compartment through said window opposite to it.
- 7. The light fixture of claim 5 wherein said lamp in said second light compartment is placed on an axis diagonally to the axis of said lamp in the first mentioned light compartment.
Parent Case Info
This is a continuation of application, Ser. No. 35,438, filed May 3, 1979, now abandoned.
US Referenced Citations (11)
Non-Patent Literature Citations (1)
Entry |
Catalogue Publication #BD-15M-01-777, Gardco Manufacturing Co., Entitled "Wall Brackets" (Hereinafter, Gardco). |
Continuations (1)
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Number |
Date |
Country |
Parent |
35438 |
May 1979 |
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