Abstract: A dual output downlight luminaire includes a housing that forms at least a first cavity. A partition extends from a portion of the housing and at least partially forms a boundary between the first cavity and an annular second cavity. A first light source emits a first light that is centered about an optical axis and propagates toward a first output aperture. An optic redirects the first light to form a first light beam that exits the luminaire through the first output aperture. A concentrated portion of the first light beam subtends an angle of 60 degrees or less and is centered about the optical axis. A plurality of second light sources, within the second cavity, emit a second light that exits the luminaire through an annular second output aperture. The first and second light sources are independently controllable with respect to each other.

Abstract: A luminaire configured for mounting to a grid ceiling system includes first and second portions. The first portion includes a first housing, one or more first mating elements, and a light engine coupled with the first housing that generates light from electrical power, and is oriented to emit the light away from the first housing. The second portion includes a second housing and one or more second mating elements. The second mating elements are adapted to couple with the first mating elements. At least one of the first portion and the second portion includes an electrical receptacle for receiving the electrical power for the light engine. When the first mating elements couple with the second mating elements, the first housing and the second housing together define a cavity for one or more members of the grid ceiling system.

Abstract: A composite light source includes a plurality of illumination panels, that emit light of a fixed color and a variable luminous intensity. Over time, the luminous intensities of at least two of the illumination panels vary, while a combined luminous intensity of the illumination panels remains about constant. Another composite light source includes a plurality of illumination panels that emit light. Each illumination panel of at least a first subset of the plurality of illumination panels emits the light with a first luminous intensity, and each illumination panel of at least a second subset of the plurality of illumination panels emits the light with a second luminous intensity that is different from the first luminous intensity.

Abstract: A two-component luminaire for illuminating an architectural space includes a housing with a panel that faces the architectural space. A peripheral edge of the housing, having first and second edge segments, forms an output aperture that faces the architectural space. A plane bisecting the output aperture defines a boundary between an indirect lighting region and a direct lighting region. The luminaire includes a primary optical subsystem arranged within the housing so as to be hidden from the direct lighting region by the first panel section, and configured to generate and emit light, through the output aperture, solely into the indirect lighting region, and a secondary optical subsystem, disposed within the housing and configured to generate and emit light through the output aperture.

Abstract: Embodiments of the invention are directed to wall recessed two-component luminaires. The two components can include a primary optical subsystem and a secondary optical subsystem. The primary optical subsystem can provide indirect lighting, illuminate an architectural space upward toward a ceiling, and/or have greater luminous flux than the secondary optical subsystem. The secondary optical subsystem can provide direct lighting, illuminate an architectural space horizontally and/or downward, provide lit appearance, provide direct view color and/or color gradients, provide direct view luminance and/or luminous gradients, and/or provide lighting for ambience.

Abstract: A pole luminaire mounts to a base and illuminates an area adjacent to the base. The luminaire includes a core structure having a plurality of side portions that extend vertically from the base, disposed about an elongate, open central shaft. One or more luminaire subassemblies couple with the core structure. Each luminaire subassembly includes a housing with a face panel that defines an aperture, a face plate coupled within the aperture, and a light engine having one or more light emitters. Light is directed through the aperture and the face plate into the area.

Abstract: In one embodiment, a design system based on luminaires having multiple illumination panels includes first and second luminaires. Each of the first luminaires includes three illumination panels arranged in a row. Each of the second luminaires includes five illumination panels of the same size and shape, arranged in an L-shape, with a first, a second and a third panel arranged in a first row, and the third, a fourth and a fifth panel arranged in a second row at a ninety degree angle to the first row. In another embodiment, a design system based on luminaires having multiple illumination panels includes first and second luminaires. Each of the first luminaires includes three illumination panels arranged in a row. Each of the second luminaires includes nine illumination panels of the same size and shape, arranged in a grid of three rows and three columns.

Abstract: A luminaire configured for mounting to a grid ceiling system includes first and second portions. The first portion includes a first housing, one or more first mating elements, and a light engine coupled with the first housing that generates light from electrical power, and is oriented to emit the light away from the first housing. The second portion includes a second housing and one or more second mating elements. The second mating elements are adapted to couple with the first mating elements. At least one of the first portion and the second portion includes an electrical receptacle for receiving the electrical power for the light engine. When the first mating elements couple with the second mating elements, the first housing and the second housing together define a cavity for one or more members of the grid ceiling system.

Abstract: A method of commissioning a plurality of light fixtures located in a space includes controlling a user interface to provide a display of a representation of the space, and representations of each of the plurality of light fixtures. The method further includes controlling light emitted by at least a subset of the light fixtures, such that each of the light fixtures is distinguishable from others of the light fixtures, and controlling the user interface such that the representation of each of the light fixtures is distinguishable from the representations of the others of the light fixtures. The method further includes receiving input from the user interface as information that specifies a position of each of the light fixtures within the space, and storing the information that specifies the position of each of the light fixtures within the space, in a data structure.

Abstract: A pole luminaire mounts to a base and illuminates an area adjacent to the base. The luminaire includes a core structure having a plurality of side portions that extend vertically from the base, disposed about an elongate, open central shaft. One or more luminaire subassemblies couple with the core structure. Each luminaire subassembly includes a housing with a face panel that defines an aperture, a face plate coupled within the aperture, and a light engine having one or more light emitters. Light is directed through the aperture and the face plate into the area.

Abstract: A composite light source includes at least eight illumination panels in a layout. Each of the illumination panels in the layout is adjacent at least one other of the illumination panels. All of the illumination panels emit light of the same chromaticity as one another. Each illumination panel emits light characterized by one of at least first, second, and third discrete levels of luminous intensity. At least one of the illumination panels emits light at the first level of luminous intensity; at least one of the illumination panels emits light at the second level of luminous intensity; and at least one of the illumination panels emits light at the third level of luminous intensity.

Abstract: A composite light source includes a plurality of illumination panels, that emit light of a fixed color and a variable luminous intensity. Over time, the luminous intensities of at least two of the illumination panels vary, while a combined luminous intensity of the illumination panels remains about constant. Another composite light source includes a plurality of illumination panels that emit light. Each illumination panel of at least a first subset of the plurality of illumination panels emits the light with a first luminous intensity, and each illumination panel of at least a second subset of the plurality of illumination panels emits the light with a second luminous intensity that is different from the first luminous intensity.

Abstract: A two-component luminaire for illuminating an architectural space includes a housing with a panel that faces the architectural space. A peripheral edge of the housing, having first and second edge segments, forms an output aperture that faces the architectural space. A plane bisecting the output aperture defines a boundary between an indirect lighting region and a direct lighting region. The luminaire includes a primary optical subsystem arranged within the housing so as to be hidden from the direct lighting region by the first panel section, and configured to generate and emit light, through the output aperture, solely into the indirect lighting region, and a secondary optical subsystem, disposed within the housing and configured to generate and emit light through the output aperture.

Abstract: Embodiments of the invention are directed to wall recessed two-component luminaires. The two components can include a primary optical subsystem and a secondary optical subsystem. The primary optical subsystem can provide indirect lighting, illuminate an architectural space upward toward a ceiling, and/or have greater luminous flux than the secondary optical subsystem. The secondary optical subsystem can provide direct lighting, illuminate an architectural space horizontally and/or downward, provide lit appearance, provide direct view color and/or color gradients, provide direct view luminance and/or luminous gradients, and/or provide lighting for ambience.

Abstract: Embodiments of the invention are directed to wall recessed two-component luminaires. The two components can include a primary optical subsystem and a secondary optical subsystem. The primary optical subsystem can provide indirect lighting, illuminate an architectural space upward toward a ceiling, and/or have greater luminous flux than the secondary optical subsystem. The secondary optical subsystem can provide direct lighting, illuminate an architectural space horizontally and/or downward, provide lit appearance, provide direct view color and/or color gradients, provide direct view luminance and/or luminous gradients, and/or provide lighting for ambience.

Abstract: Optical systems capable of use in a variety of lighting applications particularly including industrial high bay and similar applications, the systems of the invention deliver energy efficient and effective light distribution through use of dual reflector arrangements wherein an inner reflector having a divergent and convergent profile is stationary relative to a lamp to form an inner reflector/lamp assembly, a prismatic outer reflector being displaceable relative to the inner reflector/lamp assembly to produce differing photometric distributions.

Abstract: A substantially bell-shaped light fixture component for use with a lighting fixture, the light fixture component having upper and lower openings and curved or undulating segments on the light fixture component body that diffuse light from the light source used in connection with the light fixture component. The outer surface of the light fixture component body also has a plurality of curvilinear prisms for reflecting light by internal prismatic reflection. The inner and outer surfaces of the light fixture component create an even distribution of light that emanates from the light fixture component in use.