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: A light assembly that includes a mounting frame on which a light engine is mounted so as to direct light through the mounting frame opening and out of an opening in the ceiling. The light assembly is designed to permit the light engine to be rotated and tilted, in some embodiments without the need for tools.

Abstract: Exemplary lighting devices have sensors, intelligence in the form of programmed processors and communication capabilities. Such a device is configured to monitor one or more conditions external to a lighting device not directly related to operational performance of the respective lighting device. One or more such devices can work in a networked system, to support a variety of applications separate and in addition to the lighting related functions of the devices(s).

Abstract: A luminaire includes at least one light source, at least one reflector having a reflector cavity and an optical element positioned to receive light reflected from the at least one reflector cavity. The luminaire does not include a mask or other structure located within the opening of the luminaire that would partially occlude light exiting the luminaire—light can thus exit the luminaire unimpeded. In some embodiments, the at least one reflector cavity is semi toroidal. Moreover, in some embodiments, the optical element includes a reflective optical element, a refractive optical element or a combination thereof. Methods of lighting a surface are also described.

Abstract: A lamp includes a single string of light emitting diodes (LEDs), driven in common, configured to cause the lamp to emit a visible light output via a bulb. The lamp also includes a lighting industry standard lamp base, which has connectors arranged in a standard three-way lamp configuration, for providing electricity from a three-way lamp socket. Circuitry connected to receive electricity from the connectors of the lamp base as standard three-way control setting inputs drives the string of LEDs. The circuitry is configured to detect the standard three-way control setting inputs and to adjust the common drive to the string of LEDs to selectively produce a different visible light outputs of the lamp via the bulb responsive to the three-way control setting inputs. The lamp may also include nanophosphors pumped by emissions of the LEDs, so that the lamp produces a white light output of particularly desirable characteristics.

Abstract: At least one controllable source of visible light is configured to illuminate a space to be utilized by one or more occupants. A controller causes the source(s) to emit light in a manner that varies at least one characteristic of visible light emitted into the space over a period of time at least in part in accordance with a chaotic function.

Abstract: A ceiling mount lighting fixture includes a channel, a channel cover, and a light source including a plurality of light-emitting diodes. The channel cover includes two sides that intersect in a V-shaped base, with light-emitting diodes mounted on each side. The light-emitting diodes emit light at cone angles that overlap at the base of the channel cover. The fixture may include a diffuser and an end cap positioned on each end of the channel, each end cap including a groove. A plurality of strips may be located on the diffuser, each strip moveable from a first position on the diffuser a distance from the end caps to a second position in which the strip engages the groove on one of the end caps, thereby serving as a light trap to block light from exiting gaps between the diffuser and end caps.

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 other non-lighting-system devices at the premises. Each such element has a communication interface system configured to provide a relatively short range, low power wireless data communication link for use by other 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 other non-lighting-system devices.

Abstract: Embodiments of the invention provide for a lighting system for illuminating aisles with shelving. A rail can include a plurality of LEDs that extend along the length of the rail. The rail can be coupled with a node that includes various components along with an egress light source. The LEDs can be used to primarily illuminate the shelving on both or one side of the aisle. The egress light can be used to illuminate the aisle during times of emergency, at night, or when egress may be required.

Abstract: Networked intelligent lighting devices and other elements connected to the network of a lighting system are readily adaptable to desirable networking arrangements as well as logical functional groups, for example by each storing communication provisioning data and/or configuration data for logically associating system elements into one or more groupings or sub-networks. The exemplary systems and system elements may also enable such enhanced network arrangement via autonomous discovery and device commissioning.

Abstract: A method and system for driving an organic light emitting diode (OLED) with a regular LED driver without pre-charge are provided. In the examples, at least one passive element is included in parallel with the OLED across the output of the power supply. This passive element may be a capacitor. In one example, the effective series resistance (ESR) of the parallel capacitor may be substantially less than an ESR of the OLED at turn-on of the OLED. The turn-on delay of the OLED substantially is determined by the ESR of the parallel capacitor and is not substantially determined by the ESR of the OLED. In another example, the ESR of the parallel capacitor is less than or equal to 10% of an ESR of the OLED at turn-on of the OLED.

Abstract: A system provides white light having a selectable spectral characteristic (e.g. a selectable color temperature, delta uv, and intensity) using a combination of sources (e.g. LEDs) emitting light of three, four, five, or six different characteristics, for example, one or more white LEDs, and one or more LEDs of each of three primary colors, plus cyan and royal blue. A controller maintains a desired spectral characteristic, e.g. for white light at a selected point on or within a desired range of the black body curve. In addition, the controller provides selectable adjustments for values of the spectral characteristics, while maintaining substantially constant overall output intensity for the light output of White LEDs, thereby achieving Maximum Utilization.

Abstract: Exemplary security lighting routines are tailored to disrupt visual perception and/or acuity so as to significantly reduce the ability of a person or persons, who has breached security, to function within a secured space. A routine triggered in response to a security breach includes a flash at a relatively high intensity, some number of times brighter than normal illumination for the space. Some exemplary routines include a warning light and/or a pre-flash light emission such as dim lighting or a flicker, to effectively prepare the person in the space for maximum effectiveness of the flash. Exemplary routines may also include a post-flash sequence of multiple color light emissions, such as alternating emissions in sequence of pulses of different colors of light using emission and/or off time parameters that vary in an irregular manner.