High output low brightness ventilated luminaire

Claim 2

A high output, low brightness luminaire comprising: a housing, including a back wall, side walls a top wall and a bottom wall; a pair of opposed discharge lamp sockets mounted in said side walls approximately midway between said top wall and said bottom wall, a pair of concave reflectors, one of said reflectors mounted adjacent the top half of said back wall and the other of said reflectors mounted adjacent the bottom half of said back wall, a convex reflector mounted between said concave reflectors and overlying the bottom edge of the upper reflector and the top edge of the lower reflector, and; a perforated shield extending across said housing from one side wall to the other side wall approximately midway between said top wall and said bottom wall forward of said opposed discharge lamp sockets, said perforated shield being constructed and arranged to shield the arc of discharge lamps mounted in said opposed sockets from view at normal viewing angles.

Claim 3

The high output, low brightness luminaire according to claim 1 wherein said perforated shield is curved and the side thereof facing said lamp sockets is reflective.

Claim 4

The high output low brightness luminaire according to claim 2 wherein said perforated shield is less than 25 percent open.

Claim 5

The high output low brightness luminaire according to claim 1 wherein at least one air inlet is provided in said back wall adjacent the center thereof and said convex relfector is perforated.

Claim 6

The high output low brightness luminaire of claim 1 wherein a plurality of light directing baffles are mounted in a vertical array between said top wall and said bottom wall adjacent said perforated screen, said light directing baffles being individually and selectively adjustable to control the light output pattern of said luminaire.

Claim 7

The high output, low brightness luminaire according to claim 1 wherein a plurality of light directing baffles are mounted in horizontal array between said side walls forward of said perforated screen, said light directing baffles being individually and selectively adjustable to control the light output pattern of said luminaire.

Claim 8

The high output low brightness luminaire according to claim 1 wherein two sets of light directing baffles are mounted in said luminaire, a first set mounted between the top and bottom walls and a second set mounted between said side walls with each baffle of each set being individually and selectively adjustable to control the light distribution of said luminaire.

Claim 9

A high output, low brightness, ventilated luminaire comprising: an open front housing including a back wall, side walls, a top wall and a bottom wall; a discharge lamp socket mounted approximately midway between said top wall and said bottom wall in each of said side walls, said discharge lamp sockets being arranged in facing relationship one to the other; an upper curved reflector mounted adjacent to the upper half of said back wall; a lower curved reflector mounted adjacent the lower half of said back wall with the upper edge of said lower reflector being slightly spaced from the bottom edge of said upper reflector; an oppositely curved reflector overlying the lower edge of said upper curved reflector, the upper edge of said lower curved reflector and the space therebetween, said oppositely curved reflector being perforated; and at least one air inlet in said back wall proximate said space between said upper and lower curved reflectors, whereby air passing through said inlet in part passes through the perforations in said oppositely curved reflector to sweep discharge lamps mounted in said discharge lamps sockets and in part is redirected by said oppositely curved reflector to sweep said upper and lower reflectors.

Claim 10

A high output, low brightness, ventilated luminaire comprising: an open front housing including a back wall, side walls, a top wall and a bottom wall; a discharge lamp socket mounted approximately midway between said top wall and said bottom wall in each of said side walls, said discharge lamp sockets being arranged in facing relationship one to the other; an upper curved reflector mounted adjacent to the upper half of said back wall; a lower curved reflector mounted adjacent the lower half of said back wall with the upper edge of said lower reflector being slightly spaced from the bottom edge of said upper reflector; an oppositely curved reflector overlying the lower edge of said upper curved reflector, the upper edge of said lower curved reflector and the space therebetween, said oppositely curved reflector being perforated; and at least one air inlet in said back wall proximate said space between said upper and lower curved reflectors, whereby air passing through said inlet in part passes through the perforations in said oppositely curved reflector to sweep discharge lamps mounted in said discharge lamps sockets and in part is redirected by said oppositely curved reflector to sweep said upper and lower reflectors.

Claim 11

The high output, low brightness, ventilated luminaire according to claim 8 wherein a perforated sHield is mounted across said housing from one side wall to the other side wall approximately midway between said top wall and said bottom wall forward of said discharge lamp sockets, said perforated shield being constructed and arranged to shield the arc of the discharge lamps mounted in said sockets from view at normal viewing angles.

Claim 12

The high output, low brightness, ventilated luminaire according to claim 9 wherein said perforated shield is curved and the side thereof facing said lamp socket is reflective.

Claim 13

The high output, low brightness, ventilated luminaire according to claim 10 wherein said perforated shield is less than 25 percent open.

Claim 14

The high output, low brightness, ventilated luminaire according to claim 9 wherein a plurality of light directing louvers are mounted in vertical array between saidd top wall and said bottom wall adjacent said perforated shield, said light directing louvers being individually and selectively adjustable to control the light output pattern of said luminaire.

Claim 15

The high output, low brightness, ventilated luminaire according to claim 9 wherein a plurality of light directing louvers are mounted in horizontal array between said side walls forward of said perforated shield, said light directing louvers being individually and selectively adjustable to control the light output pattern of said luminaire.

Claim 16

The high output, low brightness, ventilated luminaire according to claim 8 wherein two sets of light directing louvers are mounted in said luminaire, a first set mounted between the top and bottom walls and a second set mounted between said side walls with each louver of each set being individually and selectively adjustable to control the light distribution of said luminaire.