Abstract: A luminaire includes a housing assembly, a spacer, and a globe optic. A collar may be included on the spacer such that the luminaire can accommodate different sizes of globe optics without requiring complete replacement of the luminaire. The spacer may include airflow apertures that promote air circulation within the luminaire when the luminaire is assembled. A wireless node may be included with the luminaire. In some examples, the wireless node may be positioned on at least one of the housing assembly, the spacer, or the globe optic.

Abstract: A luminaire may include a plurality of different light engines. Light engines having different light distributions can be included in a single luminaire and a subset of the light engines selectively driven to dynamically change the light distribution of the luminaire. In this way, a single luminaire is capable of illuminating an area with a variety of different light distributions.

Abstract: Light fixtures for a wide range of installations that can be interconnected to each other in different orientations to permit easy scaling up or down of an installation without requiring renovation or disruption of the surrounding environment. More specifically, embodiments of the light fixtures include an adjustable power connector that can be oriented differently depending on the desired configuration of the installation.

Abstract: A lighting assembly for illuminating an architectural space includes a mounting bracket with an axial portion, a trim flange ring including an outer surface, and a light fixture including a flange with an external surface such that the lighting assembly has an installed configuration. The axial portion includes an annular cross-section and at least one open end. In the installed configuration, at least a portion of the light fixture is disposed inside the axial portion. In the installed configuration, the trim flange ring is disposed between the mounting bracket and the light fixture. In the installed configuration, the outer surface faces the architectural space such that the outer surface is a concentric ring around the external surface of the flange of the light fixture.

Abstract: A method for commissioning a lighting control system includes selecting a control device for a lighting group in the lighting control system, and receiving, via the control device for the lighting group, a first instruction to the lighting control system. The first instruction may cause devices in the lighting control system to enter a pairing mode. A first device to be associated with the control device may be selected based on motion of a person in a vicinity of the first device detected by a sensor. The first device may be associated with the lighting group for a specified space based on the motion detected by the sensor. A second instruction may be received via the control device for the lighting group and, in response to the second instruction, the lighting control system may exit the pairing mode.

Abstract: A system including an electroencephalography (EEG) device configured to be positioned on a head of a user and process detected EEG signals. The system also includes a processor in communication with the EEG device, a memory accessible by the processor and instructions stored in the memory for execution by the processor to generate, based on a control instruction, a control data signal, for control of an operation of a controllable device configured to provide a premises related service in an area of a premises. In the training phase, execution of the instructions configures the processor to determine whether or not that the control operation of the control data signal is consistent with the detected EEG signals based on a trusted input from the user, and upon determination that the control operation is consistent with the detected EEG signals, store, in the memory, recognition data characterizing the detected EEG signals as a predetermined set of signals in association with the control instruction.

Abstract: A lighting fixture for powering multiple LED groups to generate a selectable color temperature. The lighting fixture provides varying amounts of power to each group of LEDs to achieve a selected color temperature. Current from a driver may be divided between the LED groups based on a selected operational state, which is selected using a switch or other configurable input. The operational states may turn the LED groups on or off or may control an amount of current received by the LED groups. In some configurations, all of the LED groups are always at least partially powered.

Abstract: A downlight fixture includes an optic housing, a light-emitting diode (LED) array, and a lens-less reflector. The LED array emits directional light rays in a downward direction towards an illuminated target. The reflector is mounted within the optic housing and adjacent to the LED array. The reflector has a hyperbolic wall continuously extending between a narrow neck and a wide bell. The light rays are spread into a light beam within the reflector upon making contact solely with the hyperbolic wall.

Abstract: A light fixture includes a housing having sidewalls that define a manifold aperture, extending from upper to lower edges of the manifold aperture. The housing includes first coupling features. The light fixture includes at least one adapter plate with second coupling features that removably couple with the first coupling features. The adapter plate defines an adapter plate aperture. At least one light emitting engine removably couples with the adapter plate such that emitted light passes through the adapter plate aperture. The light fixture further includes a baffle that includes at least one baffle cell. The baffle cell includes an upper baffle edge that defines: an upper baffle aperture through which light emitted by the light engine passes, a lower baffle edge that defines an output aperture for the emitted light, and a baffle cell wall that extends from the upper baffle edge to the lower baffle edge.

Abstract: A lighting fixture for powering multiple LED groups to generate a selectable color temperature. The lighting fixture provides varying amounts of power to each group of LEDs to achieve a selected color temperature. Current from a driver may be divided between the LED groups based on a selected operational state, which is selected using a switch or other configurable input. The operational states may turn the LED groups on or off or may control an amount of current received by the LED groups. In some configurations, all of the LED groups are always at least partially powered.

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: A light fixture includes an electronic accessory module such as a wireless communication module, and a clip for mounting the accessory module to a panel of the light fixture. The clip includes features for snapping the accessory module to a panel of the light fixture, for example to a printed circuit board holding light emitting diodes or to a sheet metal panel that is part of the structure of the light fixture. The clip may hold the accessory module electronics away from any metal parts of the light fixture. In the case that the accessory module is a wireless communication module, this spacing may facilitate robust wireless communication.

Abstract: A light fixture includes a fixture housing. In some examples, an optic that includes silicone and is at least 5 inches in diameter is coupled to the fixture housing, and the light fixture is compliant with standard UL-844. In various examples, a top cap assembly is coupled to the fixture housing natively or as a retrofit kit. The top cap assembly includes a top cap and an interface ring, and allows for the light fixture to be attached to an existing top cap.

Abstract: A light fixture includes a driver for driving a light engine based on control signals received from a controller coupled to the driver. The driver is further connected to an AC power source and is configured for detecting a power loss from the AC power source and generating a power loss signal. Upon detecting the power loss, the driver sends the power loss signal to the controller. Based on the power loss signal, the controller sends an emergency egress mode control signal to the driver which drives the light engine in the emergency egress mode, i.e. at its full intensity for an emergency time period. Upon expiration of the emergency time period or upon the recovery of the AC power, the controller exits the emergency egress mode by sending a normal control signal to the driver.

Abstract: Battery charge function may be in an LED driver which eliminates the duplication of line interface circuitry. A single line interface circuit provides the input power conversion for both the battery charge function and normal operation of the LED driver. During a loss of power, the LEDs may be controlled using power from the battery backup module.

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: Certain examples involve lighting systems controlled based on gas concentration data received by a controller. For instance, a lighting system includes a first light fixture to illuminate a first space. The lighting system also includes at least one gas concentration sensor associated with the first space, and a first controller that receives gas concentration data from the at least one gas concentration sensor. The first controller also overrides the illumination state of the first light fixture based on the gas concentration data received from the at least one gas concentration sensor by controlling the first light fixture in an alert state that is different from the illumination state.

Abstract: An optical system and method provides at least one, and preferably an array of relatively small, high brightness light sources with a surrounding surface that exhibits brightness, thereby reducing the contrast between the high brightness produced by the light sources and the brightness of their surrounding surfaces. The optical system includes a light waveguide structure that captures a portion of the light from the individual high-brightness light sources, and then re-emits the source light to create brightness in the light sources' surrounding surfaces. The optical system is particularly adapted for use with LEDs, but could be used with LEDs, but could be used with other high brightness light sources.