This disclosure relates to an assembly that is configured to be installed or integrated into a suspended grid ceiling.

A wall wash recessed light fixture has a light engine assembly has an aperture, an LED module operable to emit light through the aperture, a lens disposed between the LED module and the aperture, and a reflector disposed between the LED module and the lens. The LED module has an optical axis passing through the aperture and substantially parallel to a longitudinal axis (Z). The lens has a first side forming a plano-convex lens with a convex surface facing the LED module and has a second side with a Fresnel lens surface facing the aperture, and the lens is aligned at an oblique angle Θ.sub.1 relative to the optical axis of the LED module. A diffuser is disposed between the lens and the aperture. The plano-convex lens has a principal axis aligned at the oblique angle Θ.sub.1 relative to the optical axis of the LED module.

The present disclosure relates generally to lighting elements, for example, suitable for use illuminating a ceiling. The present disclosure relates more particularly to an illuminated acoustic ceiling element including an acoustic substrate having an upper face and a lower face, an air permeable layer disposed under the lower face of the acoustic substrate and spaced from the acoustic substrate, and a light source supported by the acoustic substrate and configured to emit light through the air permeable layer.

A hybrid LED lighting device, in particular a recessed spotlight, with lighting and sanitizing functions, comprises: a support structure extending along a longitudinal axis; a central LED source, positioned along the axis and emitting white light; and a plurality of UV-C LED sources, emitting in the UV-C band and arranged spaced apart from one another about the axis and about the central LED source to form an LED ring.

A wall wash recessed light fixture has an enclosure, an aperture, an LED module, a tubular reflector, a lens, a trim element and a diffuser. The lens is disposed at an opening of the tubular reflector, has a concave surface facing the LED module and a convex surface facing the aperture, and has a principal axis aligned at an oblique angle Θ.sub.1 relative to an optical axis of the LED module. An internal kicker reflector is offset from the optical axis of the LED module toward a second end of the light fixture, and is substantially parallel to a height axis (Z) and lateral axis (X) and faces a center axis of the aperture and. The trim element is disposed below the collimator assembly and at least partially in the opening of the ceiling. A first diffuser covers a first trim opening and is aligned at an oblique angle relative to the longitudinal axis (X).

A collapse preventing lamp including a lamp panel and a lamp frame, wherein the lamp panel as a light source is installed in the lamp frame, and wherein a gap is defined between at least one side edge of the lamp panel and an edge of the lamp frame; and a baffle for shielding the gap is provided which is overlapped on the lamp frame, and the baffle is provided with an anti-collapse member for supporting a corresponding side edge of the lamp panel.

A mounting plate assembly has a mounting plate for mounting a light fixture in holes of different diameters. A guide rail assembly is secured to a rear face of the mounting plate on opposed sides of an aperture. Each guide rail assembly has a displaceable spring clamp structure mounted on a displaceable base coupled for sliding displacement along the guide rail assembly. Spring biasing elements are provided between the displaceable base and the guide rail assembly to urge a bottom face of the displaceable base against a flat top surface of a mounting base to which the guide rails are secured. A retention formation is provided in the bottom surface of the displaceable base for retention coupling with a selected one of space-apart engageable retainers immovably secured to the flat top surface of the mounting base and aligned with the retention formation to arrest the displaceable base at a desired location to position the spring clamp structures at a desired location with respect to the size of a hole formed in the sheet material and to which a light fixture is to be secured.

A recessed lighting apparatus comprising a cap provided with an apex comprising a first opening, adapted to accommodate at least one lighting source, and a second opening, of greater dimensions than the first opening, adapted to emit the light flow emitted from the lighting source. Starting from the interior of the apparatus towards the exterior of the apparatus, the cap can comprise a first cap made of a transparent material acting as a catadioptric reflector and a second cap made of an opaque material which is separated from said first cap by a gap.

A recessed luminaire includes a housing supporting a light emitter, an intumescent material coupled to an outer surface of the housing, and a plate coupled to the housing and to the intumescent material. The housing configured to be positioned at least partially through a ceiling. The housing also includes a stepped surface. The intumescent material has a shape complementary to a shape of the housing. The plate is positioned adjacent to the stepped surface and to an upper surface of the intumescent material.

An assembly for an opening through a member has a body and a first spring retention assembly coupled to the body. The first spring retention assembly has a first coil spring at least partially disposed within a first spring housing. The first coil spring has a first end extending through the first spring housing and is coupled to the body. The first coil spring is extendable from and retractable into the first spring housing.