Patent ID: 7178943

Claim:
A luminaire ( 1 ) comprising: a concave reflector ( 2 ) enclosing a hollow space ( 3 ) and having an edge ( 4 ) which defines a light emission window ( 5 ); contact means ( 12 ) for accommodating at least a first ( 6 ) and a second electric lamp ( 7 ); a separating wall ( 8 ) which is both light-transmitting and light-reflecting in substantially equal proportion, which is perpendicular to the light emission window ( 5 ), which divides the hollow space into chambers ( 9 , 10 ), and which acts as a partitioning wall between the first ( 6 ) and the second ( 7 ) electric lamp to be accommodated, wherein the luminaire is provided with a counter-reflector ( 11 ) , which counter-reflector ( 11 ) is positioned inside the light emission window ( 5 ) opposite the concave reflector ( 2 ) at a side of the contact means opposite to the concave reflector ( 2 ) and further wherein the separating wall ( 8 ) is fixedly attached to the concave reflector ( 2 ) and extends in a direction perpendicular to and towards said light emission window ( 5 ), and wherein light originating from said at least first ( 6 ) and second electric lamps ( 7 ) can only leave said luminaire ( 1 ) through the light emission window after being reflected either by the concave reflector ( 2 ) or by the counter-reflector ( 11 ) and the concave reflector ( 2 ), and wherein at least a portion of the light reflected back by the counter-reflector is directly incident on the separating wall, thereby achieving a better homogeneity of the mixed light and of the luminous fluxes from the chambers ( 9 , 10 ).