A method of manufacturing a planar light source includes: providing a wiring substrate; locating a light guide plate on a first principal face of the wiring substrate, wherein the light guide plate includes a plurality of unit regions arranged in one dimension or two dimensions, and a plurality of through holes that are open at the a principal face and a second principal face of the light guide plate, wherein at least one of the through holes is located in the unit regions; locating light sources in the through holes in the unit regions on the first principal face of the wiring substrate; locating a first light transmissive member in a first of the through holes; and locating a second light transmissive member in the first through hole.

The invention relates to a facade construction, consisting of panels and a framework in the form of vertical struts and horizontal girders covered by profiled covers. At the locations of intersection of the profiled covers, openings are formed for conducting lighting equipment cables, openings are formed in the frontal planes of the profiled covers for light sources, the openings being commensurable with the diameter of the light sources, and the light sources are located in the same plane as the front part of the profiled covers or project insignificantly beyond same. Separate groups of LED light sources can be connected in the internal volume of the profiled covers with the aid of a switching power-supply connector and switching control connector, and electrical power-supply sources and elements for controlling the light sources are mounted in the internal volume of the profiled covers or are located outside the construction system.

Low voltage lamp (10) for external use, comprising: a hollow and sealed container body (31) consisting of at least two opening half-shells (11.1), filled with insulating gel (G) and containing a terminal connection block (12); at least one light source (L) having at one of its extremities at least one electrical and mechanical connection means (13) which is electrically branched by means of electrical wires (25) with respect to said block (12); wherein at least said wires (25) and at least one portion of said connection means (13) are housed in a sealed manner in said container body (31) by means of said gel (G), which encloses them like a cast, and wherein said gel (G) is configured to model its shape on said wires (25), said block (12) and said at least one portion of said connection means (13), in a reversible manner.

A method of manufacturing a light emitting module is provided. A plurality of light-emitting diodes are aligned on an elongated base board. By a dispenser, an uncured paste of sealing material is continuously applied on a plurality of light-emitting diodes aligned on the elongated base board. The applied paste of sealing material is cured.

A furniture item includes a main body with an electrical device installed thereon. A power line electrically connects the electrical device to an external power source and is concealed in a power line channel formed in one or more of the walls of the main body. A switch may be connected to the main body and electrically connected to the electrical device, for controlling the electrical device. A main body door moveable from a first position to a second position may trigger the switch to enable and disable electrical connection between the external power source and the electrical device.

A linear light fixture for use in a hazardous environment, the linear light fixture includes a housing body that defines a component compartment therein that is configured to receive electrical components. The linear light fixture also includes a light engine connected to the housing body and including a light emitting diode. The light engine is pivotable with respect to the housing body between a first position, wherein the light engine encloses the component compartment, and a second position, wherein access is provided to the component compartment. The light engine is separable from the housing body.

Apparatus and methods for deployment of fixtures. The apparatus may include a system for controlling deployed fixtures. The system may receive user commands different devices in different formats. The fixtures may be independently addressable. The fixtures may be magnetically supported by a fixture support. A brace may join two or more fixture supports without reducing space available to support fixtures. The brace may join a fixture support to a fixture support accessory. An accessory may include a variable-angle junction. The fixture may include articulating joints for controlling the direction of a beam. The fixture may include a lens having an electrically controllable beam spread angle. The fixture may be stowable in the fixture support. The fixture may be slidable along a cord to adjust a height of the fixture. The fixture may include an extendable ring. The system may coordinate motions of the fixtures to follow a target. The fixture may include an elongated board. The elongated board may include a non-polar power socket.

An integrated ceiling device includes a housing retaining an electronic assembly, a heat sink having a central opening, a light source coupled onto the heat sink, the housing is coupled with and disposed at least partly above the heat sink, and a central vertical axis of the housing aligns or is in proximity with the central opening of the heat sink.

An emergency lighting unit includes a housing. The housing includes a base having a first portion and a second portion. A lamp assembly is rotatably connected to the housing and positioned in the lower portion. A cover is provided over the lamp assembly.

Disclosed is a light intensity signal transmitting device based on a high-speed LED array. The light intensity signal transmitting device includes an LED array and a control board card; through a novel arrangement and driving mode, the LED array has a high-speed modulation characteristic and can transmit high-bit light intensity information at the switching speed of single-point LEDs; the control board card performs high-speed display by gating an I/O port of the LED array, and is used as a light intensity signal transmitting end to transmit a light signal. According to the light intensity signal transmitting device, on the premise that the switching rate of the LED array is ensured, multi-bit binary data transmission is realized, and the transmission rate is improved.