Patent ID: 8534877

Claim:
A luminaire capable of use in illumination of bays or portions of a space such as are enclosed by a warehouse or the like, comprising: an outer reflector having an aperture and having prisms formed on exterior surfaces thereof, interior surfaces of the outer reflector having concentric scalloping and radial scalloping formed thereon, said scalloping intersecting to define a multiplicity of optically efficient regions; an inner reflector disposed at least partially within a volumetric space defined by the outer reflector, surfaces of the inner reflector being formed with radial scallops disposed over surfaces thereof and being convex as viewed from internally of the inner reflector; and, at least one lamp at least partially mounted within the volumetric space defined by the outer reflector and having an arc capable of producing light, the inner reflector being mounted in fixed relation to the arc of the lamp to define a ceiling of the luminaire independent of displacement or positional adjustment of the lamp and the inner reflector relative to the outer reflector, thereby providing a desired lighting distribution emanating from the aperture of the outer reflector.