Luminaire reflector mounting for rotation of asymmetric reflector

Claim 1

A luminaire comprising, in combination, a concave housing having a bottom opening, a concave reflector arranged within said housing and having a rim defining a bottom opening substantially coaxial with the bottom opening of said housing, the rim of said reflector being substantially channel-shaped and being formed with an annular flange projecting upwardly and spaced outwardly from the reflector, means for removably mounting a lamp in said reflector, said reflector being rotatably adjustable within said housing about the axis thereof, and a plurality of circumferentially spaced fastening means adjustably securing said reflector rim flange to said housing for holding said reflector in different rotational positions relative to said housing, whereby the light distribution from said reflector may be varied, each said fastening means including support means secured to and having a portion projecting radially inwardly from said housing for supporting said reflector, said reflector being formed in said rim thereof with circumferentially spaced, outwardly open recesses, said recesses being sufficiently large for passage therethrough of said radially projecting support portions when said reflector is removed from and inserted into said housing, each said fastening means including a clamp member adjustably attached to said housing for releasably clamping said reflector rim flange to said housing.