Abstract: A light fixture includes a housing, a bezel, and an optic. The bezel is coupled to the housing such that the optic is positioned between at least a portion of the bezel and the housing. The bezel includes a drainage system, and the drainage system includes at least one drainage opening in the bezel proximate to a front side of the light fixture and at least one weep opening between the bezel and the optic. The drainage system also includes a drainage gap between the housing and the bezel proximate to a back side of the light fixture that is opposite the front side and a drainage channel in fluid communication with the at least one drainage opening, the at least one weep opening, and the drainage gap.

Abstract: A lighting system utilizes intelligent system elements, such as lighting devices, user interfaces for lighting control or the like and possibly sensors. The system also has a data communication network. Some number of the intelligent lighting system elements, including at least two of the lighting devices, also support wireless communication with non-lighting-system devices at the premises. Each such element has a communication interface system configured to provide a short range, low power wireless data communication link for use by non-lighting-system devices at the premises in proximity to the respective intelligent system element. Also, in such an element, the processor is configured to control communications via the communication interface system so as to provide access to the data network and through the data network to the wide area network outside the premises for non-lighting related communications of the non-lighting-system devices.

Abstract: A linear luminaire comprising a scalable driver channel. The driver channel may be monolithic, formed by extrusion and cut to a custom length. The driver channel may provide a sealed enclosure for light engines and other components of the linear luminaire. The sealed enclosure may further be defined by end caps coupled to ends of the driver channel and light modules and accessory modules coupled to the bottom of the driver channel.

Abstract: Systems and methods for using wireless beacons in point of purchase (“POP”) displays to facilitate the delivery of consumer oriented content to mobile devices is disclosed. Wireless beacons may be used to broadcast wireless signals from POP displays, where the wireless signals include data packets with unique identifiers for the wireless beacons. The wireless signals may be received by mobile devices. A remote server may communicate with the mobile device and provide the mobile device with up-to-date content associated with the POP displays. Wireless data collection devices (such as network gateways) may be used to receive data packets from the wireless beacons provide the data packets to the remote server. Accelerometers may be used on the wireless data collection devices to assess movement of the devices. Movement data for the devices may be used to determine reprogramming of the devices after the devices are moved.

Abstract: Disclosed are examples of a method, system and asset tag that enables general, coarse and fine estimates of a location of the asset tag. The asset tag receives a signal transmitted from radio frequency (RF)-enabled nodes within a space. Each respective received signal includes a unique node identifier of the respective RF node that transmitted the respective received radio signal. Each RF node has a physical node location in the space that is associated with the unique node identifier. The tag measures the received signal strength of each respective received signal that is associated with the node identifier of the RF node that transmitted the respective received signal. The strongest measured received signal strengths are selected, and a tuple containing the node identifiers for the selected strongest signal strengths is forwarded for estimating a location of the asset tag by a computing device.

Abstract: Apparatus for coupling a luminaire with a surface includes a mounting plate having or more studs extending therefrom, a back plate for a luminaire, and a latch. The back plate forms slots that can receive the studs. The back plate can move in a first direction with the studs received within the slots. The latch couples with the back plate, and can engage one of the studs that extends through one of the slots. In a first rotational position of the latch with respect to the back plate, the latch does not engage the stud, and in a second rotational position of the latch with respect to the back plate, the latch engages the stud in a direction different from the first direction, so as to constrain movement of the back plate in the first direction, latching the back plate to the mounting plate.

Abstract: A luminaire includes a housing, light-emitting diodes and a light guide. A lateral direction from a top side to a bottom side of the housing is a preferred direction. A front side of the housing forms an aperture. The light guide substantially spans the aperture. In operation, the LEDs emit light toward the preferred direction, which light enters a light coupling surface of the light guide, where it propagates and is substantially retained by total internal reflection. The light guide includes light extraction features to redirect a portion of the light out of total internal reflection, so that some of the light exits the housing through the aperture. The light extraction features redirect some of the light so that more of the light exits the aperture between a normal direction of the light guide and the preferred direction, than between the normal direction and the non-preferred direction.

Abstract: A light fixture for lighting a surface includes a housing, a plurality of light sources, and a reflector for directing light out of a window of the housing. The plurality of light sources are directed away from the window of the housing and are then not directly viewable from the exterior of the housing while providing light reflected against the reflector through the window of the housing. The light sources are connected to a substrate through which power is supplied to the light sources and through which heat energy is removed from the light sources during operation. The substrate may form a portion of the housing of the light fixture.

Abstract: A method for controlling a wireless lighting control network includes determining, by a first network device, whether a message is received from a control device during a first time interval; in response to determining that the message was not received, transmitting, by the first network device, a message to other network devices to determine whether another network device received the message from the control device; in response to determining, during a second time interval, that the first network device did not receive the message from the control device and did not receive an indication from another network device that the message from the control device was received, transmitting a message to the other network devices to indicate that the first network device is a substitute control device; and periodically transmitting messages to the other network devices indicating that the first network device is an active substitute control device.

Abstract: A cove lighting system includes a plurality of cove extrusions and a plurality of mounting brackets. Each cove extrusion is a single extrusion defining a cove channel and mounting features. The mounting brackets are attached to the wall and the cove extrusions are hung from the mounting brackets with the mounting features. The cove extrusions are hung immediately adjacent to each other to define a continuous cove channel to receive one or more power boxes, and one or more luminaires.

Abstract: Printable circuits may be used in combination with a point of purchase (POP) display (e.g., a consumer product display). The POP display may be configured to be deployed at a retail location. A printable circuit may be attached to the POP display with the printable circuit having printed data for a selected retail campaign associated with the POP display. The printed data may include one or more parameters for the selected retail campaign. A wireless beacon may be attached to the printable circuit on the POP display. The printable circuit may provide the parameters for the selected retail campaign to the wireless beacon when the wireless beacon is attached to the printable circuit. The wireless beacon may be assigned a unique identifier in at least one parameter provided to the wireless beacon by the printable circuit.

Abstract: Disclosed herein is system level occupancy counting in a lighting system configured to obtain an indicator data of a RF spectrum signal (signal) generated by a number of receivers at a number of times in an area. At each respective one of the number of times, for each respective one of the receivers, apply one of a plurality of heurist algorithm heuristic algorithm coefficients to each indicator data of the signal, based on results of the application of the heuristic algorithm coefficients, generate an indicator data metric value for each of the indicator data for the respective time. The lighting system is also configured to process each of the indicator data metric value to compute a plurality of metric values for the respective time and combine the plurality of metric values to compute an output metric value for each of a plurality of probable number of occupants in the area for the respective time.

Abstract: A luminaire includes a universal driver control interface to control various types of driver circuits. The luminaire receives, via a voltage divider, an analog voltage feed as a first driver control signal from at least one driver control wire connected to a driver circuit. The luminaire converts, via an analog-to-digital converter, the analog voltage feed into a digital voltage value. The luminaire compares the digital voltage value with a respective range of unique voltage values in a voltage lookup table for each type of driver circuit to determine a respective type of driver circuit protocol. Based on the determined respective driver circuit protocol identifier and a light source control setting, the luminaire outputs a second driver control signal, via the at least one driver control wire, to the driver circuit.

Abstract: A minimally complex, low cost/economical luminaire that distributes point source light for general lighting applications, the luminaire having a substrate with a linear array of discrete light sources positioned to emit light into an air-filled cavity and a light redirecting assembly on the other side the air-filled cavity, the assembly comprising a clear, light transmissive rigid cover and a clear, light transmissive semi-rigid flexible film positioned between the cover and the substrate, wherein the film is non-adhesively secured within the luminaire and flexed to generally conform to the shape of the cover and wherein the surface of the film facing into the air-filled cavity comprises an array of optical relief structures extending into the air-filled cavity.

Abstract: An example luminaire includes a white light source (e.g. LEDs emitting white light in a region of the CIE color chart within three Macadam ellipses below the black body curve) and a violet light source emitting light in a wavelength range of approximately 380 nm to 450 nm (e.g. 405 nm LEDs) for deactivating bacteria, such as Methicillin-Resistant Staphylococcus Aureus (MRSA) on a surface exposed to illumination from the luminaire. A controller coupled to the sources pulses the violet light source at periodic intervals or at random times. When ON, the violet source emits light for deactivating bacteria at an intensity higher than the concurrent intensity of the white light.

Abstract: A circuit arrangement for operating a load includes a primary-side switched-mode converter with galvanic isolation of input and output voltage, having: a primary circuit, a secondary circuit and a power transformer, wherein: a first inductor and a second inductor, the first inductor being arranged in the secondary circuit in order to pass the current generated by the transformer when the energy is transferred to the secondary circuit, and the second inductor being interconnected in a measuring circuit. The second inductor is spatially arranged in a stray magnetic field generated by the first inductor; the measuring circuit has an output at which a measuring voltage is output, and the control device is connected to the output of the measuring circuit in order to determine a corresponding current flow from the output measuring voltage, and is configured to control the clocked operation of the switch depending on the current flow determined.

Abstract: An intelligent lighting system may be installed using pre-existing electrical wiring, such as in a construction or retrofit environment. An intelligent lighting controller and an intelligent lighting fixture may be connected via electrical wiring that is configured for transmitting AC power signals. A commissioning signal may be transmitted to the intelligent lighting fixtures via the electrical wiring. In some cases, the intelligent lighting controller modifies portions of the AC power signal to indicate the commissioning signal. The intelligent lighting fixtures may receive the commissioning signal via the electrical wiring. In some cases, each intelligent lighting fixture that is connected to the electrical wiring, such as each intelligent lighting fixture on a lighting circuit in a room, receives the commissioning signal.

Abstract: A luminaire includes a first light source positioned at a first level of a luminaire housing. The first light source generates a light output. The luminaire also includes a trim component positioned at a second level of the luminaire housing different from the first level, The trim component includes a visual feedback element that emits a visual feedback response. Further, the luminaire includes a control circuit positioned at the second level within the trim component. The control circuit controls operation of the visual feedback element.