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A lighting system producing a light pattern that is customized in the field by the end user to minimize light pollution. A housing supports a light source that is connected to a power supply. The housing defines an interior chamber. An opaque or low visible light transmissivity shield is bent or for

A lighting system producing a light pattern that is customized in the field by the end user to minimize light pollution. A housing supports a light source that is connected to a power supply. The housing defines an interior chamber. An opaque or low visible light transmissivity shield is bent or formed into a generally tubular shape and is inserted into the chamber surrounding the light source. The shield includes folds, perforations, pre-scoring, grooves, and the like defining sections that can be easily detached to create windows. The windows permit outgoing light to pass while the remaining areas of the shield attenuate or block the outgoing light. The shield includes teeth that engage respective recesses in the housing to prevent rotation of the shield once installed.

대표청구항 ▼

We claim: 1. A lighting system providing a light pattern that is customized in the field by an end user, comprising: a housing containing a light source; a light shield attenuating visible light passing therethrough, having a tubular shape and multiple sections, wherein the shield is inserted into

We claim: 1. A lighting system providing a light pattern that is customized in the field by an end user, comprising: a housing containing a light source; a light shield attenuating visible light passing therethrough, having a tubular shape and multiple sections, wherein the shield is inserted into the housing and at least partially circumscribes the light source; means for detaching at least one of the multiple sections of the shield disposed along a periphery of the multiple sections, wherein the means for detaching includes a reduced thickness of the shield; and a lens disposed on the housing at least partially covering the shield and light source. 2. The lighting system of claim 1, wherein the shield includes at least one of aluminum, cardboard, fiberglass, and plastic. 3. The lighting system of claim 1, wherein the means for detaching includes a fold line. 4. The lighting system of claim 1, wherein the means for detaching includes a row of perforations. 5. The lighting system of claim 1, wherein the means for detaching includes pre-scoring. 6. The lighting system of claim 1, wherein the housing includes a light sensor controlling a power supply. 7. The lighting system of claim 1, wherein the shield includes teeth and the housing includes recesses receiving the teeth and preventing rotational motion of the shield. 8. The lighting system of claim 1, wherein shield includes a visible light reflective interior. 9. The lighting system of claim 1, wherein the lens includes an open bottom with a circumferential lip supporting the shield thereon. 10. A lighting system providing a light pattern that is customized in the field by an end user, comprising: a housing having a chamber containing a visible light source; a lens at least partially covering the visible light source; a light shield that attenuates visible light passing therethrough, disposed in the chamber surrounding the light source and engaging the housing so that the shield cannot rotate, wherein the shield includes teeth and the housing includes recesses receiving the teeth and preventing rotational motion of the shield; and at least one detachable window formed in the light shield. 11. The lighting system of claim 10, wherein the detachable window includes a fold along at least one edge. 12. The lighting system of claim 10, wherein the detachable window includes a row of perforations along at least one edge. 13. The lighting system of claim 10, wherein the detachable window includes a polygonal shape having opposed edges including rows of perforations coinciding with the edges. 14. The lighting system of claim 10, wherein the light shield attenuates 100% of visible light passing therethrough. 15. The lighting system of claim 10, wherein the light shield includes a plurality of windows with folds coinciding with the edges of the windows. 16. The lighting system of claim 10, wherein the lighting system includes an infrared motion detector incorporated into the housing and controlling the light source. 17. A lighting system providing a light pattern that is customized in the field by an end user, comprising: an upper housing having a chamber containing a visible light source therein, wherein the chamber includes at least one recess; a tubular shaped, translucent lens at least partially covering the visible light source and disposed beneath the upper housing; a light shield that blocks visible light passing therethrough, having at least one tooth extending from a top edge thereof and frictionally engaging the recess thereby inhibiting rotational movement of the shield, and wherein the light shield is disposed in the chamber at least partially surrounding the light source; and at least one detachable window having vertically extending edges formed in the light shield, wherein a fold coincides with each edge. 18. The lighting system of claim 17, wherein the light shield is rolled into a tubular shape from a flat sheet and includes a split seam. 19. The lighting system of claim 17, wherein the light shield includes a plurality of contiguous windows with fold lines dividing the windows.