A universal junction box includes an upper body having a first connecting feature. A lower body releasably connects to the upper body having a second connecting feature configured to mate with the first connecting feature. The upper body and lower body forming a housing to receive an electrical connection. A first mounting feature is configured to selectively secure the housing to an associated frame or to an unassociated frame or other support structure.

Technologies are described for a louver or lens holder having a rectangular or square frame with parallel first side edge and a second side edges. At least one extension extends from the first side edge and at least one retractable support arm is configured to be extended from, and retracted into, the second side edge. The louver or lens holder is configured to be inserted into a ceiling support grid and to be held therewith.

A system and method for creating a trompe-l'oeil skylight in a ceiling where a light emitting image of the sky is provided in a structure configured to emulate a skylight frame, including an embodiment of a unified non-rectangular sky image area in a substantially rectangular fixture which mount as a single unit into a substantially rectangular hole in a ceiling.

Provided is a light-emitting device with reduced in-plane luminance variation. The light-emitting device includes a main substrate, a plurality of light sources, a plurality of lenses, and one or more light reflection members. The main substrate includes a central part and a peripheral part that surrounds the central part. The plurality of light sources are each disposed on the central part of the main substrate. The plurality of lenses are disposed to correspond to the plurality of light sources respectively. The plurality of lenses apply optical effects to beams of light from the plurality of light sources respectively. One or more light reflection members are each disposed on the peripheral part. The light reflection members each have reflectance that is higher than the reflectance of the main substrate.

A fireproof recessed light fixture for receiving a light source comprises a metal housing defining an open end for receiving the light source and a closed end. The housing comprises an annular shoulder at the open end for abutting a wall into which the recessed light fixture is installed. The housing comprises a first wall of generally cylindrical shape extending between the open and closed ends and a second wall defining the closed end of the housing. Both first and second walls have thicknesses between 0.5 and 1 mm and are completely sealed so to prevent air flow between an interior and an exterior of the housing other than through the open end and through an opening for feeding through cables for electrical energy supply. The first and second walls render the recessed light fixture fireproof by preventing high temperatures or fire from propagating quickly through the housing.

A trim accessory and method of its use that attaches or retrofits to an existing recessed light fixture, and directs or restricts emitted light from the lighting fixture to areas or locations desired by the end user. The trim accessory attaches to the trim, and has a tapered annular panel with an outer surface, an inner surface, an outer edge, an annular inner portion, and one or more retainers along the annular inner portion that retain an outer periphery of the outer-extending trim of the recessed lamp, to secure the trim accessory against the ceiling or other surface using the recessed lighting fixture. The tapered annular panel extends outwardly and upwardly against the ceiling, to blend visually into the undersurface of the ceiling.

A retrofit panel for a ceiling-mounted light fixture. The panel may comprise a lens, screen, diffuser, or LED light screen. Anchor line assemblies and retainer arm assemblies extend from a perimeter guide track from which they extend. The anchor line assemblies engage one or more ports on the light fixture housing and hold the retrofit panel a maximum anchor distance from the housing. The retainer arm assemblies engage one or more openings on the light fixture housing and hold the retrofit panel flush with the light fixture housing or the ceiling if recess mounted. The retrofit panel can be easily installed in existing ceiling mounted light fixtures with minimal demolition.

Embodiments of the present disclosure generally relate to light fixtures and luminaires configured to emit light. According to one aspect, an optical waveguide includes a first waveguide portion and a second waveguide portion adjacent to and separate from the first waveguide portion. The waveguide portions include light coupling portions that are at least partially aligned and adapted to receive light developed by a light source. The first waveguide portion further has a first major surface with light direction features and a second major surface opposite the first major surface. The second waveguide portion further has a third major surface proximate the second major surface with an air gap disposed therebetween and a fourth major surface opposite the third major surface wherein the fourth major surface includes a cavity extending therein.

The present disclosure discloses a lighting module including a light source module, a driving module, and an optical element and a lighting lamp. The light source module includes a light source plate and a plurality of Light-Emitting Diode (LED) light sources. Emergent light of the LED light source is emitted after passing through the optical element, and the optical element has a light incident portion and a light emergent portion. The driving module and the LED light source are respectively adhered to the light source plate and are integrated on the light source plate, the light incident portion of the optical element covers above the light source plate, receives the emergent light of the LED light source and carries out optical configuration on the emergent light of the LED light source, and the driving module is arranged in a periphery of the light incident portion of the optical element.

A recessed lighting fixture comprises a generally annular body having a central cavity in the form of a partially spherical socket. There is a lighting support member having a partially spherical exterior portion which is closely fitted within the partially spherical socket of the annular body. The lighting support member is pivotable relative to the annular body, but air flow between the partially spherical socket of the annular body and the partially spherical exterior portion of the lighting support member is substantially restricted. There may be a light source mounted to the lighting support member adjacent a bottom thereof. The light source may be a light-emitting diode.