Abstract: A multi-beam solid-state luminaire including a plurality of solid-state lamps and a plurality of beam forming optics including a first group of beam forming optics and a second group of beam forming optics. In some embodiments, the beam forming optics may be arranged in a pattern having a center, and one or more center beam forming optics of the first group may be positioned at the center of the pattern. In some embodiments, luminaire may include a first beamwidth lens positioned over the first group of beam forming optics and a second beamwidth lens positioned over the second group of beam forming optics. The beamwidth lenses may emit light from the solid-state lamps having different respective beamwidths. The luminaire may provide a decorative flame-like pattern on a target surface.

Abstract: A lighting system includes a light source, a light redirection element, and a movement mechanism coupled to the light source and the light redirection element. The movement mechanism is configured to simultaneously or stepwise move the light source and the light redirection element between a top lighting position and an interlighting position.

Abstract: An example of a light fixture is configured to receive, manually or wirelessly from and external device, an instruction to update a setting of the light fixture to a selected intensity or a selected color temperature. An instruction received from the external device may override an instruction provided via manual control. The light fixture may include a set of cool light-emitting diodes (LEDs) and a set of warm LEDs. A processing unit of the light fixture may utilize pulse-width modulation to cause the light fixture to emit light having the selected intensity or selected color temperature by implementing a particular duty cycle of a control signal for the cool LEDs and a particular duty cycle of a control signal for the warm LEDs corresponding to the selected intensity or selected color temperature.

Abstract: An example control system includes a set of light fixtures connected to a hub, where each light fixture includes a hub-communication device configured to communicate with the hub and a direct communication device configured to communicate directly with other light fixtures. Together, the light fixtures form a mesh network facilitated by the use of their direct communication devices. An external device communicates an instruction to a light fixture, and the instruction is propagated throughout the mesh network through communications among the light fixtures using their respective direct communication devices. As a result, each light fixture to which the instruction applies receives and complies with the instructions. The light fixtures are also configured to receive instructions from the hub, such that a light fixture is configured to receive instructions over dual networks.

Abstract: A method for reducing current ripple at an output of a power supply includes sensing an alternating current (AC) input voltage waveform; determining a correction factor for a switching frequency of the power supply based on the sensed AC input voltage; and applying the correction factor to the switching frequency of the power supply to modify the power supply switching frequency. A modification of the switching frequency synchronizes the switching frequency of the power supply to the AC input voltage waveform.

Abstract: An optical assembly and a luminaire with extreme cutoff beam control optics. The optical assembly includes a base, at least one lens, at least one light emitting diode (LED) positioned to emit light into the lens, and a curved reflector disposed adjacent to the LED. The reflector can be characterized by a first angle between a plane of the base and a first line joining a distal end of the lens furthest laterally from a first end of the reflector and a second end of the reflector located over the lens, and a second angle between the plane of the base and a second line joining a point on the lens located at the optical axis of the LED and the second end of the reflector. The first angle can be between 60° and 90°, and the second angle can be between 70° and 130°.

Abstract: A multi-beam solid-state luminaire including a plurality of solid-state lamps and a plurality of beam forming optics including a first group of beam forming optics and a second group of beam forming optics. In some embodiments, the beam forming optics may be arranged in a pattern having a center, and one or more center beam forming optics of the first group may be positioned at the center of the pattern. In some embodiments, luminaire may include a first beamwidth lens positioned over the first group of beam forming optics and a second beamwidth lens positioned over the second group of beam forming optics. The beamwidth lenses may emit light from the solid-state lamps having different respective beamwidths. The luminaire may provide a decorative flame-like pattern on a target surface.

Abstract: An example control system includes a set of light fixtures connected to a hub, where each light fixture includes a hub-communication device configured to communicate with the hub and a direct communication device configured to communicate directly with other light fixtures. Together, the light fixtures form a mesh network facilitated by the use of their direct communication devices. An external device communicates an instruction to a light fixture, and the instruction is propagated throughout the mesh network through communications among the light fixtures using their respective direct communication devices. As a result, each light fixture to which the instruction applies receives and complies with the instructions. The light fixtures are also configured to receive instructions from the hub, such that a light fixture is configured to receive instructions over dual networks.

Abstract: A lighting system for a ceiling grid system may provide lighting at a location below the ceiling grid system. The light fixture includes a light source and a support member, and the light fixture may provide diffusely reflected light to a ceiling grid opening. The light fixture may include a wall assembly that is adapted to be moved between a folded configuration and an unfolded configuration.

Abstract: Certain examples involve a circadian effect light fixture. The circadian effect light fixture includes a controller to receive a modifying factor based on a circadian impact profile. The modifying factor includes an indication of an intensity value, a correlated color temperature value, and a color value over a range of time. The circadian effect light fixture also includes a first lighting element controlled by the controller to produce a first light output having a first intensity, a first correlated color temperature, and a first color value. Further, the circadian effect light fixture includes a second lighting element controlled by the controller to produce a second light output having a second intensity, a second correlated color temperature, and a second color value. A combined light output of the first lighting element and the second lighting element tracks the modifying factor over the range of time.

Abstract: A unitary mounting clip for mounting equipment to a building structure is disclosed. In an embodiment, the unitary mounting clip includes a base, a mounting structure rising from a top surface of the base, at least one elastic arm having a friction feature, and a snap holder extending from a bottom surface of the base. In some embodiments, the mounting structure includes a boss and a distal mounting tab, and the unitary mounting clip is attached to the building structure by inserting the boss and distal mounting tab through an opening of the building structure and then rotating the unitary mounting clip ninety degrees so that the friction feature of the at least one elastic arm is biased into contact with a wall portion of the building structure and locks the unitary mounting clip in place.

Abstract: An emergency LED lighting system maintains power to an LED lighting source based on measured voltages and currents provided to the LED lighting source; rolls back or decreases power provided to an LED lighting source over time in order to increase the amount of time the battery can power the LED lighting source; executes a soft start procedure, such that the power provided to the LED lighting source is gradually ramped up during activation of the LED lighting sources; identifies a type of battery coupled to the emergency LED lighting system; cycles the emergency LED lighting system between charging mode and standby mode to reduce power consumption over a window of time; detects AC power or an absence of AC power; and/or uses a status LED to communicate information about the emergency LED lighting system with a remote device.

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 an irregular rate and interval over a time period to apply a deactivation dosage of the violet light to bacteria within range of the emissions. When ON, the violet source emits light for deactivating bacteria at an intensity higher than the concurrent intensity of the white light.

Abstract: A multi-region lighting system for flat illumination includes one or more light sources and an optic. The optic comprises a first region characterized by a first refractive-index feature and a second region characterized by a second refractive-index feature. The second region comprises a ridge structure. The first and second refractive-index features and the ridge structure are operative to produce a composite light distribution from the one or more light sources.

Abstract: A vandal resistant light may include a housing having a first end and a second end, the first end opposite the second end, a lighting assembly disposed at the first end of the housing, a cover disposed at the second end of the housing, the cover includes a continuous uninterrupted groove, and a flange including an extension configured to be at least partially received within the continuous uninterrupted groove.

Abstract: Embodiments are directed to a horticultural luminaire and method for assembling the horticultural luminaire. The horticultural luminaire may include a center body having a top surface and a bottom surface and comprising three or more items of material. A driver may be coupled to each of the items of material. The horticultural luminaire may also include a plurality of arms onto which lighting units are mounted. For each arm of the plurality of arms, a first end of the arm may be detachably coupled to a corresponding item of the three or more items of material. A corresponding driver may provide electrical power to light the lighting units on each arm.