A lighting system includes an LED downlight mountable to a ceiling, a driver, and an insulation displacement connector (IDC). Light from the downlight can be faced downward to project light or upward to reflect light off of the ceiling. The driver has an input with a first voltage and an output with a second voltage, the second voltage being lower than the first and being provided through a wire system extending from the LED driver. The IDC connects the downlight to the wire system. The lighting system can be changed from a first to a second configuration by at least one of adding an additional downlight using a corresponding IDC or removing an existing downlight using a corresponding IDC. The second configuration does not significantly affect a desired output range of light from any downlight or any LED circuit of any downlight that remains or preexists from the first configuration.

Examples of the present disclosure provide a light distribution element, a light source module and a lamp, the light distribution element includes a light entry surface, a first light exit surface and a second light exit surface, the first light exit surface is configured to receive part of light entering the light entry surface and emit the part of the light entering the light entry surface; the second light exit surface is a reflective surface, and the second light exit surface is configured to receive part of the light entering the light entry surface and reflect the part of the light entering the light entry surface; and a direction of the light emitted from the second light exit surface is different from a direction of the light emitted from the first light exit surface, it can be used for key lighting and lighting ceiling areas respectively.

The present invention discloses a joinable lamp structure, which is made by joining two neighboring lamps through a joining component. A side cap is used to cover the exposed ends of the lamps. After the assembly, the present invention can be embedded inside the mounting slot of the ceiling or suspended below the ceiling.

A mounting plate assembly has a mounting plate for mounting a light fixture in holes of different diameters and wherein 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 novel displaceable spring clamp structure having to a displaceable base coupled for sliding displacement along a 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 enclosure (100) for a light source (01). The recessed enclosure (100) includes a housing (102) having a mounting fixture for fitting a light source (01) thereon. A lid frame (104) has an opening (106) configured thereon emitting light from the light source (01). The lid frame (104) includes a first gasket (108) provided in a first groove (105), configured on the lid frame (102). A transparent body (110) is nested with the first gasket (108) for reflecting light emitted by the light source (01). Retainer clips (112) are provided along the longitudinal edges of the first groove (105) to compress and seal the first gasket (108) to prevent ingress of dust and moisture through the opening (106). Three fasteners (114) securely attach the lid frame (104) to the housing (102).

A variety of illumination devices are disclosed that are configured to manipulate light provided by one or more light-emitting elements (LEEs). In general, embodiments of the illumination devices feature one or more optical couplers that redirect illumination from the LEEs to a reflector which then directs the light into a range of angles. In some embodiments, the illumination device includes a second reflector that reflects at least some of the light from the first reflector. In certain embodiments, the illumination device includes a light guide that guides light from the collector to the first reflector. The components of the illumination device can be configured to provide illumination devices that can provide a variety of intensity distributions. Such illumination devices can be configured to provide light for particular lighting applications, including office lighting, task lighting, cabinet lighting, garage lighting, wall wash, stack lighting, and downlighting.

A daylight redirecting window film having a layered structure with a total thickness of less than one millimeter and having a first optically transmissive film, a second optically transmissive film approximately coextensive with the first optically transmissive film, an intermediate layer of a relatively soft optically transmissive material disposed between the first and second optically transmissive films, a parallel array of linear three-dimensional structures formed in a space between the first and second optically transmissive films, a layer of an optically transmissive adhesive coating a surface of the first optically transmissive film, and a two-dimensional pattern of light scattering surface microstructures formed in an outer surface of the second optically transmissive film. The parallel array of linear three-dimensional structures defines a parallel array of linear channels, and each of the linear three-dimensional structures has a total internal reflection wall extending transversely through a portion of the layered structure.

Disclosed is a luminaire such as an LED downlight which is suitable for mounting in ceiling cavities of commercial environments. An example luminaire (200) comprises a light source (202) including an integral primary optic which is configured to transmit light toward a second optic (214). The second optic (214) is a lens configured to receive light from the light source (202) via the primary optic and transmit at least part of the received light toward a circular reflector (201). The circular reflector (201) is configured to direct light received from the second optic (214) away from the luminaire (204). A shape of the second optic (214) is interdependent with a shape of the circular reflector (201), and the shape of the second optic (214) and circular reflector (201) act in combination to transmit light away from the luminaire with a non-circular illuminance distribution (206).

There is described a collar for a recessed fixture, in particular a recessed fixture for recessing in a hole. The collar comprises a wall to extend into the hole, such wall comprising an indented catch, and such catch is arranged to catch a sprung arm of the fixture to retain the collar and fixture together with the sprung arms trapped therebetween. By providing a collar which is able to secure the fixture in a safe intermediate (not fully installed) position, it is possible to improve the efficiency and safety of installation and removal of the fixture.

A luminaire includes a housing (102) with an inner cavity a light source (122) mounted to an inner top surface of the housing. The luminaire also includes a door frame (104), wherein the door frame includes a first side rail (108), a second side rail (109), a third side rail (107), and a fourth side rail (110). The four side rails of the door frame define a light emitting opening for the luminaire. A film stack (116) is supported by the door frame and placed in the light emitting opening so that light from the light source passes through the film stack as it is emitted through the light emitting opening. The film stack (116) includes a diffuser film (129) and a photopolymer film (127). The photopolymer film (127) is embossed with optical structures that create a holographic pattern that appears to be three-dimensional.