Area lighting luminaire

Claim 1

An area lighting luminaire comprising: a base including means for mounting a lamp socket and lamp therein; a cylindrical lens defining a lamp cavity positioned above said base and arranged to surround said lamp and at least a portion of said lamp socket; a plurality of annular louver members surrounding said cylindrical lens and stacked one above the other; spacer means separating each of said annular louver members from its adjacent louver member, said annular louver members including an annular ring portion and a radially and downwardly extending louver portion, said spacer means separating each of said louver members from its adjacent louver member a distance such that the downwardly extending outer end of each louver portion lies in substantially the same plane as the ring portion of its adjacent lower louver member, the top and bottom annular louver members including inwardly directed flanges serving to mount said cylindrical lens therebetween; and a cover member overlying said lamp cavity, the upper edge of said cylindrical lens and at least a portion of the uppermost louver, said cover member including a central disc-shaped lens portion overlying the cavity defined by said cylindrical lens.