Luminaire having annular inner housing with detachable annular louver support element

A luminaire, comprising:

• (a) an outer annular housing open at upper and lower ends and defining an interior cavity extending therebetween and having a lower opening, said outer annular housing also defining a central axis of the luminaire;
• (b) a roof having upper and lower faces and being disposed in a substantially overlying relationship to said open upper end of said outer annular housing and said interior cavity thereof, said roof having brackets extending downwardly from said lower face of said roof and being attached to said outer annular housing so as to support said outer annular housing below said roof;
• (c) an inner annular housing having top and bottom ends and disposed within said outer annular housing and arranged concentric with and spaced radially inwardly from said outer annular housing with respect to said central axis so as to separate said interior cavity of said outer annular housing into a central portion disposed inside said inner annular housing for the installation of accessory parts and an outer annular portion disposed outside said inner annular housing and concentrically surrounding said inner annular housing and said central portion of said interior cavity for the arrangement in said outer annular portion of an annular illumination lamp, said central portion and outer annular portion of said interior cavity both being open at said lower opening of said interior cavity;
• (d) means for detachably securing said inner annular housing to said roof;
• (e) lamp holder means supported below said lower face of said roof and extending into said outer annular portion of said interior cavity for mounting the annular illumination lamp;
• (f) an annular reflector provided in said outer annular portion of said interior cavity and having inner and outer walls extending downward from said lower face of said roof in opposing radially spaced apart relationships to and past said lamp holder means and opposite inner and outer sides of the illumination lamp when mounted by said lamp holder means, said inner and outer walls of said annular reflector defining an annular chamber therebetween open at a bottom thereof;
• (g) an annular louver provided underneath said lamp holder means and the illumination lamp when mounted by said lamp holder means, said annular louver extending upwardly through said bottom of and within said annular chamber of said annular reflector such that said annular louver has to be removed from said annular reflector in order to gain access to said lamp holder means to install or replace an illumination lamp;
• (h) an annular support element;
• and
• (i) means for detachably securing said annular support element on said bottom end of said annular inner housing such that said annular support element projects radially outwardly therefrom so as to removably support said annular louver within said annular chamber of said annular reflector.