Abstract: A luminaire arrangement including a guard for protecting a linear light source is disclosed. The guard includes a plurality of wire-like elements. These elements are positioned relative to the linear light source of the luminaire arrangement in such a manner that none of the elements, as defined herein, is coplanar with the light source.

Abstract: An arrangement for lighting a given straight section of a roadway having spaced-apart parallel curbs is disclosed herein and includes a luminaire positioned a substantial distance to one side of and above the roadway curbs. The luminaire includes a reflector, light source and a refractor which cooperate to effectively and efficiently light the given roadway section while, at the same time, minimizing the amount of light which spills onto opposite sides of the roadway curbs.

Abstract: A sign lighting arrangement including a luminaire located in a predetermined position in front of a rectangular sign is disclosed herein. The luminaire includes a light source supported by an opaque housing, the uppermost edges of which lie in a common plane with the light source and the bottom edge of the sign. In this manner, direct light from the light source is prevented from passing under the sign (positive bottom edge cut-off). The luminaire also includes a reflector having lateral edge portions located in a fixed position relative to the luminaire's light source and the sign. The reflector and particularly these lateral edge portions are specifically contoured so that the lateralmost vertical edges of the reflected light substantially coincide with the side edges of the sign. Thus no reflected light passes beyond these side edges (positive side edge cut-off). A refractor is provided one purpose of which is to aid in achieving positive side edge cut-off.

Abstract: An arrangement for indirectly lighting a room by directly lighting the ceiling within the room is disclosed herein and includes a plurality of luminaires spaced from one another within the room. Each luminaire is spaced below the ceiling, preferably supported on the floor of the room in a readily mobile fashion, and directs light onto the ceiling both directly above it in the direction of zenith and at wide angles with zenith.