Abstract: Retrofit light fixtures suitable for installation without tools. One or more spring bands deform as the fixture is forced through a ceiling opening and resume their preloaded shape to hold the fixture in place. Some embodiments may be installed in round ceiling openings and may utilize LED light sources.

Abstract: A lighting controller provides a user interface module and a lighting controller engine. The user interface module allows a user to specify settings for one or more lighting fixtures using descriptive, absolute or relative values, which the lighting controller engine translates into fixture-dependent values before sending them to the lighting fixtures. The user interface module also provides context-based displays and context-based controls.

Abstract: In an electronic apparatus comprising a circuit board supporting semiconductor components and traces or conductors for supplying electrical energy to the semiconductor components, and a connection arrangement by which the conductors are connected to a power supply cable, the circuit board being covered by an electrically insulating encapsulating layer, a molded frame part is mounted on the circuit board so as to cover the connection arrangement, the molded frame part having a circumferential edge structure which extends on one end into the encapsulating layer and at the other end projects above the encapsulating layer so as to create an interior space which, when the encapsulating layer is at least partially cured, is filled with additional encapsulating compound to form, after curing, a relatively thick protective layer over the wire or cable and conductor connecting area.

Abstract: An electrical device is provided that can selectively be powered through a neutral wire or an earth ground. The electrical device includes a line terminal, a neutral terminal, a ground terminal, and a selection mechanism. The line terminal is electrically connected to at least one load. The line terminal can be electrically connected to a line (or “hot”) wire. The neutral terminal is electrically connected to the at least one load. The neutral terminal can be electrically connected to the neutral wire. A first electrical path is provided from the line terminal through the at least one load to the neutral terminal. The ground terminal can conduct current to the earth ground. The selection can selectively provide a second electrical path from the neutral terminal to the earth ground via the ground terminal.

Abstract: Lighting devices and/or systems offer dynamic control or tuning of color of light. The lighting systems utilize sources, such as solid state sources, to individually pump a number of different phosphors of types having relatively high degrees of color purity. The phosphor emissions, however, are still broader than the traditionally monochromatic color emissions of LEDs. The different phosphors can be independently excited to controllable levels, by individually controlled sources rated for emission of energy of the same spectrum. Adjustment of intensities of electromagnetic energy emitted by the sources independently adjusts levels of excitations of the phosphors selected to emit different colors of relatively high purity and thus the contributions of pure colors to the combined light output, for example, to enables color adjustment of the light output over a wide range of different selectable colors encompassing much of the gamut of visible light.

Abstract: Drive circuitry drives a plurality of solid state light emitters coupled between a higher voltage node and a lower voltage node. The drive circuitry includes a switching regulator, such as a buck regulator, having a switch and an inductive element coupled between the switch and the lower voltage node to electrically connect the switch to the lower voltage node. A controller drives the switch in accordance with an output signal produced by the solid state light emitters. Input power supply circuitry supplies an input power supply signal for providing a voltage level at the higher voltage node to operate the solid state light emitters. The input power supply circuitry is configured for supplying the controller with a first power supply signal produced based on the input power supply signal.

Abstract: A low-profile luminaire has a planar light source comprised of one or more planar organic light emitting diodes (OLEDs). The OLED light source is supported by a low-profile OLED support structure that lies in a plane. The support structure has a maximum height (H) of about two inches and preferably a height of about one inch or less. It also has perimeter dimensions that allow the luminaire to fit within and to be supported by the T-bar grid of a grid ceiling system. Electrical components for driving and controlling the OLED light source can be provided within the support structure or externally of this structure.

Abstract: The present subject matter relates to lamps for general lighting applications. More specifically, white light lamps described herein use semiconductor source to pump remotely deployed phosphor to produce light of desired characteristics. The lamps conform to form factors and/or use lamp base connectors of widely accepted lamp designs, such as those of common incandescent lamps and/or compact fluorescent lamps.

Abstract: Described are strip lighting fixtures having a channel defined by a base plate and two side walls, end plates located at each end of the channel, and a channel cover that snap-fits onto the channel. The channel side walls include at least one gripper indentation that releasably engages with at least one tong hanger hook via a snap-fit connection to attach the strip fixture to a support structure. As examples, the tong hangers include hooker clips that connect the tong hanger to a support structure, and the channel cover is contoured to provide additional spacing or relief areas to avoid pinched wires when the channel cover is connected to the channel.

Abstract: One or more example diagnostics may be implemented as part of an intelligent luminaire manager or other radio frequency (RF) device that is in communication with an equipment or fixture such as a luminaire. Example diagnostics can determine a status such as a fixture malfunction, a cycling condition, a miswiring configuration, or another condition. The determined status can be wirelessly transmitted from the intelligent luminaire manager or other radio frequency device to a network server via a network. The network may be a network of intelligent luminaire managers and/or RF devices.

Abstract: The present invention, in some embodiments, provides a luminaire operable to enhance the uniformity of light distributed from the luminaire thereby mitigating diminished illuminance at the periphery of an illuminated area.

Abstract: The structural wall of a luminaire has one or more light source retention cavities for holding area light sources such as OLED panels, and a wire chase or chases that extend from one light source cavity to another light source cavity in the structural wall, and/or from a light source cavity to a wire feed point for the structural wall. The wire chase or chases have a wire retaining bottom channel and a constricted wire entry opening at the top of the wire chase that is narrow in relation to the wire retaining bottom channel for capturing the wires therein. In another aspect of the invention, the wire chase or chases can be manufactured as separate parts, which can be inserted into the structural wall of the luminaire.

Abstract: Programmable occupancy sensors that control the on/off operation of a fluorescent lamp automatically determine loss of lamp life as the lamp is used. The programmable occupancy sensors can provide lamp life status and can automatically alert a user when a lamp is nearing its end of life and should be replaced. The occupancy sensors are also programmable to automatically improve lamp life and energy savings by selecting an optimal time delay from among a number of selectable time delays at which to operate the sensor. The selection is based on an occupancy pattern sensed by the sensor over a given period of time. The optimal time delay, which prevents the lamp from turning off immediately after last sensing occupancy, extends lamp life by limiting the number of lamp off/on transitions, which shortens lamp life, in view of overall energy usage and lamp usage.