Abstract: A luminaire has an inner annular housing separating an interior cavity of an outer annular housing of the luminaire into a central portion and an outer annular portion. The luminaire also has an annular support element detachably mounted to a bottom end of the inner annular housing and removably supporting an annular louver in the outer annular portion of the interior cavity outside of the inner annular housing and below an illumination lamp of the luminaire.

Abstract: A luminaire configuration includes a mounting module attachable on a securement base, such as the building ceiling or wall, a luminaire module adapted to support illumination producing components, and a connection system having first and second connection elements by which the luminaire module is attachable to and detachable from the mounting module through mechanical cooperation between the first and second connection elements without disturbing the illumination producing components. The luminaire module includes a luminaire housing having an annular shape and a coupling ring fitted thereto. The luminaire housing supports the illumination producing components therein.

Abstract: A polygonal illumination reflector includes a support base and a configuration of discrete reflector elements supported by the support base. The reflector elements have respective pairs of opposite side edges and respective interior reflective surfaces. The reflector elements adjoin one another in providing the configuration. The support base has a plurality of adjacent side portions and a plurality of retaining pockets defined between and interconnecting the adjacent side portions to one another. The adjacent side portions of the support base correspond in number to the reflector elements. The retaining pockets are arranged in pairs wherein the retaining pockets of each pair are open in a facing relationship toward one another so as to receive therein and set in engagement therewith the opposite side edges of the reflector elements in a first sequence in the configuration.