Luminaire

A luminaire, comprising:

• a housing, wherein one side of the housing is open;
• a lamp;
• a cup-shaped reflector having a rim, wherein the lamp and the reflector are contained in the housing;
• and
• means separate from said lamp, to distribute radiated heat in front of the lamp away from an area of the center line of radiation toward areas located laterally with respect to the center line of radiation of the luminaire,
• wherein the means to distribute the radiated heat in front of the lamp from an area of the center line of radiation towards the areas located laterally with respect to the center line of radiation of the luminaire, includes a medium to diffuse radiation that originates from the lamp, at least partially away from the area of the center line of radiation of the luminaire towards the areas located laterally to the center line of radiation, the lamp and the reflector coaxial with the center line and a lens holder,
• the medium to diffuse the radiation comprises a spread lens, which is mounted in the direction of the radiation and is located between the lamp and a transparent cover lens, the lens holder including a body having a ledge to support the spread lens and a plurality of supports, the supports supported by the rim of the reflector, and
• wherein an outer diameter of the spread lens is smaller than an upper diameter of the rim of the reflector so that areas of the reflector that are located laterally with respect to the lamp will reflect light past a side of the spread lens unimpeded.