Small profile high wattage horitcultural luminaire

Claim 1

A luminaire having an adjustable photometric distribution comprising: a housing including a first compartment for containing a lamp, said first compartment having an open underside; a first plate member mounted on said housing, said first plate member having first and second sides, said first side defining one end of said first compartment, a socket for said lamp being mounted on said first side of said first plate member; a second plate member mounted on said housing spaced from said first plate member, said second plate member having first and second sides, there being a second compartment extending from said second side of said first plate member to said first side of said second plate member; a ballast unit for said lamp mounted in said second compartment and making heat-conductive contact with said housing; a third plate member covering the open underside portion of said second compartment, said third plate member making heat-conductive contact with said ballast unit; a reflector for reflecting light from said lamp with an adjustable photometric distribution, said reflector being mounted within said first compartment above the position for said lamp, said reflector comprising two flexible sections, each section having a lower longitudinal edge and an upper longitudinal edge; a reflector support member mounted within said first compartment above the position for said lamp, said support member including first support means for supporting the upper longitudinal edge of said first reflector section in a plurality of mounting positions and second reflector support means for supporting the upper longitudinal edge of said second reflector section in a plurality of mounting positions; said first reflector section being mounted with its upper longitudinal edge supported in a selected upper mounting position by said first support means and said second reflector section being mounted with its upper longitudinal edge supported in a selected upper mounting position by said second reflector support means such that the shape of said first flexible reflector section is adjusted by its selected upper mounting position, the shape of said second flexible reflector section is adjusted by its selected upper mounting position, and the photometric distribution of said luminaire is adjusted by said upper mounting positions of said first and second reflector sections.