Abstract: A display lighting system is provided that assembles and installs easily and provides a wireway for luminaire and other types of wiring. Luminaires of the system each include a lamp housing attached to the ends of a pair of arms that can hold the housing sufficiently out beyond a displayed object to provide more complete illumination of the object's vertical face. Each luminaire includes a wireway enclosure dimensioned to enclose electrical wiring and at least one electrical component, such as a ballast or transformer. The enclosure is positioned between the arms at the ends opposite the lamp housing. Wiring between the lamp housing and enclosure is carried inconspicuously in a trough along the inside of one or both arms. Wiring between adjacent luminaires runs conveniently through nipple connectors connecting adjacent enclosures. Optional uplighting and accent lighting is also provided.

Abstract: Linear luminaires that asymmetrically distribute emitted and reflected light are presented. These luminaires s have single or twin unit fluorescent lighting and optional uplighting. Each includes an elliptical baffle assembly and at least one independently adjustable reflector enclosed within the housing of the luminaire. The adjustable reflector is adjustable through at least about 150 of rotation and is at least partially hidden from view by the housing and baffle assembly. The luminaires can be surface mounted, suspended, or cantilever mounted, and include wireways to permit wiring to be run discreetly inside and through adjacent asymmetric distribution luminaires.

Abstract: A display lighting system is provided that assembles and installs easily and provides a wireway for luminaire and other types of wiring. Luminaires of the system each include a lamp housing attached to the ends of a pair of arms that can hold the housing sufficiently out beyond a displayed object to provide more complete illumination of the object's vertical face. Each luminaire includes a wireway enclosure dimensioned to enclose electrical wiring and at least one electrical component, such as a ballast or transformer. The enclosure is positioned between the arms at the ends opposite the lamp housing. Wiring between the lamp housing and enclosure is carried inconspicuously in a trough along the inside of one or both arms. Wiring between adjacent luminaires runs conveniently through nipple connectors connecting adjacent enclosures. Optional uplighting and accent lighting is also provided.

Abstract: A cylindrical luminaire is provided whose components align easily, for quicker assembly, despite the lack of intrinsic preferred relative orientation in circular components. Circular end plates affixed in a desired alignment to the end of an elongated reflector have notches for alignment of a part-cylindrical cover and slots or pivotal brackets to receive a baffle. The reflector, cover and baffle are accordingly assembled in proper alignment. The baffle can be an optical baffle to alter the aesthetic appearance of the luminaire.

Abstract: A cylindrical luminaire is provided whose components align easily, for quicker assembly, despite the lack of intrinsic preferred relative orientation in circular components. Circular end plates affixed in a desired alignment to the end of an elongated reflector have slots to receive a baffle and notches for alignment of a part-cylindrical cover. The reflector, cover and baffle are thereby assembled in proper alignment.

Abstract: A universal track light mounting system for mounting luminaires or other components to track lighting tracks of different sizes. The system includes a universal track clamp having first and second brackets that mount around the outside of a track. One bracket engages the top and one side of the track while the other engages the top and one other side of the track. A clamp fastener adjustably interconnects the brackets. A third bracket may be provided to anchor the clamp fastener to one of the first and second brackets. The adjustable interconnection enables the universal track clamp to mount to tracks of different sizes. To accommodate luminaires of different sizes, the clamp has several attachment positions, which also provide a coarse adjustment of the width of the clamp. Because luminaires are mounted to the track by a clamp around the outside of the track, a separate power adapter is provided to connect the luminaire to power conductors inside the track.

Abstract: An arrangement for two side-by-side elongated lamps in a lighting fixture in which lampholders are alternately mounted on opposite sideplates or brackets of the lighting fixture. The lighting fixture has an inside dimension that is longer than the length of each lamp/lampholder combination by a length sufficient to prevent the distal end of each lamp from overlapping the exposed plug portion and the lampholder of any of the adjacent lamps. The lamps are tightly gathered, and are close enough together to simulate a hairline light source having an optical centerline coincident with the optical centerline of the fixture.

Abstract: An adjustable elongated luminaire or elongated luminaire system, and a respective adjustable mount or mounting system therefor, that further minimizes dark spots in the lighting pattern, while allowing easy installation and adjustment, and providing a more effective braking mechanism, as compared to previously known systems, are provided. In a preferred embodiment, each luminaire has a hole at one end and a projecting stud at the other end. A mounting bracket for each end has a corresponding hole or stud. Where two adjacent luminaires meet in a luminaire system, the mounting bracket has a hole, and the stud of one luminaire extends through the hole in that mounting bracket as well as the hole in the adjacent luminaire. Brake mechanisms to lock one or more luminaires rotationally, and alignment mechanisms to lock multiple luminaires in a system into common alignment, can also be used.

Abstract: A combination lighting/information unit, particularly but not exclusively for use in hospital corridors, and a corridor lighting system incorporating such units, has been provided. The wall-mounted unit provides both upward indirect and downward direct lighting, as well as secure storage for charts and an attractive mounting for room numbers and similar indicia which may be transilluminated by the lighting components. In a system incorporating such units, one unit is mounted outside every room, and the downward lighting is connected to the emergency power supply for uniformly distributed emergency lighting.

Abstract: An arrangement for two side-by-side elongated lamps in a lighting fixture in which lampholders are alternately mounted on opposite sideplates or brackets of the lighting fixture. The lighting fixture has an inside dimension that is longer than the length of each lamp/lampholder combination by a length sufficient to prevent the distal end of the lamps from overlapping the exposed plug portion and the lampholder of any of the adjacent lamps.

Abstract: An arrangement for two side-by-side elongated lamps in a lighting fixture in which lampholders are alternately mounted on opposite sideplates or brackets of the lighting fixture. The lighting fixture has an inside dimension that is longer than the length of each lamp/lampholder combination by a length sufficient to prevent the distal end of each lamp from overlapping the exposed plug portion and the lampholder of any of the adjacent lamps. The lamps are tightly gathered, and are close enough together to simulate a hairline light source having an optical centerline coincident with the optical centerline of the fixture.