Abstract: A light fixture includes a main body, at least a portion of which is generally cylindrical, the main body having an open side, and one or more light sources disposed within the main body. The light fixture further includes one or more mounting rings configured to substantially encircle the main body and configured for mounting the light fixture. A diffuser may be provided, covering the open side of the main body and enclosing the one or more light sources within the light fixture.

Abstract: A light fixture includes a main body, at least a portion of which is generally cylindrical, the main body having an open side, and one or more light sources disposed within the main body. The light fixture further includes one or more mounting rings configured to substantially encircle the main body and configured for mounting the light fixture. A diffuser may be provided, covering the open side of the main body and enclosing the one or more light sources within the light fixture.

Abstract: A louver assembly is disclosed for use in an overhead lighting system. The louver assembly comprises a series of thin, lightweight stringers and blade ribs arranged perpendicular to one another such that the respective side surfaces of the respective stringers are positioned at an acute angle with respect to a ceiling plane and the reflective faces of the blade ribs are positioned substantially transverse with respect to the ceiling plane.

Abstract: A door frame hingeably mounted to a lensed fluorescent troffer lighting fixture and carrying a prismatic lens cover, the door frame also integrally provides a light trap function. Structural components of the door frame have fastening elements formed integrally therewith for attachment of said components together without the use of separate fastening elements. The door frame includes low profile latching structure which allows ready opening of the door frame for relamping or other maintenance functions, hinge elements acting not only to hold the door frame to the light fixture but also to hold the door frame in a fully open position. The door frame further acts to impart rigidity to the lighting fixture when in a closed position.