Abstract: The present disclosure provides methods for generating tunable white light with controllable circadian energy performance. The methods use a plurality of LED strings to generate light with color points that fall within blue, yellow/green, red, and cyan color ranges, with each LED string being driven with a separately controllable drive current in order to tune the generated light output. Different light emitting modes can be selected that utilize different combinations of the plurality of LED strings in order to tune the generated white light.

Abstract: Lighting system including mounting body, lever-locking bracket, and lighting module. Mounting body has first end spaced apart along longitudinal axis from second end. Lever-locking bracket includes bracket body and lever actuator. Lever-locking bracket is pivotally connected with first end of mounting body by flange retained in alignment with aperture of mounting body communicating with cavity inside mounting body. Lighting module has semiconductor light-emitting device in housing, and has mounting arm pivotally connected with lever-locking bracket by first pivot joint for rotation of lighting module to plurality of primary positions around first pivot axis. Flange of the lever-locking bracket forms part of second pivot joint for rotation of lighting module to plurality of secondary positions around second pivot axis.

Abstract: In embodiments of the present disclosure improved capabilities are described for a modular linear LED lighting system providing a flexible architectural slot lighting system with multiple configurations based on the same base body design with a performance of traditional lighting sources. The linear LED lighting system comprises at least one of a multiple attachment facility, multiple functional compartments, a linear series internal attachment facility, an end cap electrical interconnection facility, an adaptable optic facility, and a dimming facility.

Abstract: A field replaceable power supply cartridge is provided for coupling with a socket. The cartridge has a latch mechanism that can be actuated by the user to couple the cartridge to the socket, such that latches of the cartridge releasably engage recessed portions in the socket. The cartridge has a key feature that corresponds to a key feature on the socket, allowing the cartridge to be coupled to the socket in only one orientation, thereby preventing the incorrect electrical connection between the cartridge and the socket. The cartridge can have a multi-pin electrical connector for coupling to a corresponding connector on the socket. The socket can be a relatively short socket, where the electrical wires are bottom fed, or can be a relatively tall socket, where the electrical wires are side fed via one or more openings in the body of the socket.

Abstract: Lighting system including light source having semiconductor light-emitting device configured for emitting light having first spectral power distribution along central axis. System includes volumetric lumiphor located along central axis configured for converting some light emissions having first spectral power distribution into light emissions having second spectral power distribution. System may include visible light reflector having reflective surface and being spaced apart along central axis with volumetric lumiphor between semiconductor light-emitting device and visible light reflector. Reflective surface may be configured for causing portion of light emissions to be reflected by visible light reflector. Exterior surface of volumetric lumiphor may include concave exterior surface configured for receiving a mound-shaped reflective surface of visible light reflector.

Abstract: The present disclosure provides systems for generating tunable white light. The systems include a plurality of LED strings that generate light with color points that fall within blue, yellow/green, red, and cyan color ranges, with each LED string being driven with a separately controllable drive current in order to tune the generated light output.

Abstract: An optical cup which mixes multiple channels of light to form a blended output, the device having discreet zones or channels including a plurality of reflective cavities each having a remote phosphor light converting appliance covering a cluster of LEDs providing a channel of light which is reflected upward. The predetermined blends of phosphors provide a predetermined range of illumination wavelengths in the output.

Abstract: Systems and methods to provide multiple channels of light to form a blended white light output, the systems and methods utilizing recipient luminophoric mediums to alter light provided by light emitting diodes. The predetermined blends of luminescent materials within the luminophoric mediums provide predetermined spectral power distributions in the white light output.

Abstract: The present disclosure provides systems for generating tunable white light. The systems include a plurality of LED strings that generate light with color points that fall within blue, yellow/green, red, and cyan color ranges, with each LED string being driven with a separately controllable drive current in order to tune the generated light output.

Abstract: An optical cup which mixes multiple channels of light to form a blended output, the device having discreet zones or channels including a plurality of reflective cavities each having a remote light converting appliance covering a cluster of LEDs providing a channel of light which is reflected upward. The predetermined blends of luminescence materials provide a predetermined range of illumination wavelengths in the output. The remote light converting appliances may be provided as frustoconical elements within frustoconical reflective cavities with a void between the light converting appliances and the associated LEDs.

Abstract: An optical cup which mixes multiple channels of light to form a blended output, the device having discreet zones or channels including a plurality of reflective cavities each having a remote phosphor light converting appliance covering a cluster of LEDs providing a channel of light which is reflected upward. The predetermined blends of phosphors provide a predetermined range of illumination wavelengths in the output.

Abstract: Lighting system including housing having base plate, and housing wall projecting in upward direction. Container with LED in housing having visible light-transmissive top plate and container wall projecting in downward direction. Gasket is configured for forming seal between container wall and base plate to form sealed container. Rail interposed between interior side of housing wall and exterior side of container wall. Rail has first side facing towards interior side of housing wall and second side facing toward exterior side of container wall. First raised region forms part of interior side of housing wall or part of first side of rail. Second raised region forms part of exterior side of container wall or part of second side of rail. First raised region is configured for limiting movement of rail away from base plate along upward direction, and second raised region is configured for limiting such movement of container wall.

Abstract: Systems and methods to provide multiple channels of light to form a blended white light output, the systems and methods utilizing recipient luminophoric mediums to alter light provided by light emitting diodes. The predetermined blends of luminescent materials within the luminophoric mediums provide predetermined spectral power distributions in the white light output.

Abstract: An optical cup which mixes multiple channels of light to form a blended output, the device having discreet zones or channels including a plurality of reflective cavities each having a remote phosphor light converting appliance covering a cluster of LEDs providing a channel of light which is reflected upward. The predetermined blends of phosphors provide a predetermined range of illumination wavelengths in the output.

Abstract: The present disclosure provides systems for generating tunable white light. The systems include a plurality of LED strings that generate light with color points that fall within blue, yellow/green, red, and cyan color ranges, with each LED string being driven with a separately controllable drive current in order to tune the generated light output.

Abstract: The present disclosure provides systems for generating tunable white light. The systems include a plurality of LED strings that generate light with color points that fall within blue, yellow/green, red, and cyan color ranges, with each LED string being driven with a separately controllable drive current in order to tune the generated light output.