FLUORESCENT LUMINAIRE WITH VERTICALLY ORIENTED U-SHAPED LAMP

摘要

Disclosed is a novel luminaire structure employing a U-shaped fluorescent lamp mounted in a rectangular or cylindrical light diffuser in either an upstanding or depending position. The diffuser constitutes the radiating surface of the luminaire. The diffuser and lamp or lamps are supported from a base member which contains the electrical connections of the luminaire. The electrical ballast associated with the lamp or lamps is secured to the base in an elongated upstanding housing parallel to the leg portions of the lamp or lamps and positioned therebetween. The ballast housing has a reflective surface whereby the light output of the lamp structure is enhanced and has a portion of its metal surfaces in contact with the ballast whereby heat is conducted away from the ballast and is dissipated by radiation from the housing.