Luminaires

Claim 1

A LUMINOUS COVERING FOR A PLANAR INTERIOR SURFACE OF A BUILDING IN THE FORM OF MODULE ASSEMBLY COMPRISING IN COMBINATION, A PLURALITY OF SUBSTANTIALLY SIMILAR SELFCONTAINED LUMINOUS MODULES OF RECTANGULAR CONFIGURATION, SAID MODULES HAVING SUBSTANTILLY CONTIGUOUS MARGINAL EDGES, AND RECTANGULAR ANTERIOR LIGHT DIFFUSING PANELS CO-EXTENSIVE WITH SAID INTERIOR SURFACE, SAID MODULES EACH COMPRISING A HOLLOW RECTANGULAR LIGHT-REFLECTING AND DIFFUSING CELL HAVING CLOSED ENDS, SAID CELL COMPRISING SAID LIGHT DIFFUSING PANEL, AN ELONGATED RECTANGULAR LIGHT TRANSMITTING PANEL SPACED REARWARDLY FROM SAID DIFFUSING PANEL, AND ELONGATED, LATERAL, LIGHT REFLECTING PANELS HAVING OPPOSED, REFLECTING, INNER SURFACES, SAID REFLECTING PANELS CONNECTING SAID LIGHT DIFFUSING AND TRANSMITTING PANELS TOGETHER ALONG SAID MARGINAL EDGES OF SAID CELL, A SOURCE OF LIGHT COMPRISING AN ELONGATED FLUORESCENT LAMP DISPOSED EXTERIORLY AND REARWARDLY OF SAID CELL, AN ELONGATED POSTERIOR REFLECTOR HAVING AN ELONGATED REFLECTING SURFACE SPACED FROM AND AT LEAST PARTIALLY TO THE REAR OF SAID LAMP FOR OPTICAL CO-ACTION WITH SAID REFLECTING PANELS, SAID REFLECTOR AND SAID LAMP BEING PARALLEL TO SAID SIDE EDGES, THE SAID REFLECTING SURFACES OF SAID REFLECTING PANELS, AND SAID REFLECTING SURFACE OF SAID POSTERIOR REFLECTOR BEING SUBSTANTIALLY CO-TERMINOUS AND CO-EXTENSIVE, AND CELL RETAINING MEANS CAPABLE OF RETAINING SAID CELL IN SAID LUMINAIRE WHILE PERMITTING SEPARATION OF THE SAME THEREFROM.