Abstract: A LED lighting system includes a soundproofing attachment, referred to as an acoustic shroud. The lighting system includes LED light fixtures with the acoustic shroud made from sound dampening materials formed into a sleeve or panels, which can be slipped on an off an LED light fixture unit. The system can include quick-release fasteners for affixing and removing the shroud from an uninstalled or installed light fixture. Quick-release fasteners can enable the attachment of the shroud to accommodate multiple types of light fixtures and installation methods, such a wall or suspended ceiling lighting designs, as well as allow for the adjustment of the position of the shroud in relationship to the LED light fixture unit.

Abstract: An LED light fixture is disclosed with an elongated housing that forms a open lower light channel and an upper light channel that is juxtaposed to the open lower light channel with electronics cavity or conduit positioned there between. The LED light fixture preferably has an elongated reflective insert that extends through the open lower light channel and creates a reflection channel from which the indirect and reflected light is emitted and a detachable cover structure that includes a diffusion lens and a removable baffle structure that attaches to side walls of the upper light channel.

Abstract: An LED light fixture is disclosed with an elongated housing that forms a open lower light channel and an upper light channel that is juxtaposed to the open lower light channel with electronics cavity or conduit positioned there between. The LED light fixture preferably has an elongated reflective insert that extends through the open lower light channel and creates a reflection channel from which the indirect and reflected light is emitted and a detachable cover structure that includes a diffusion lens and a removable baffle structure that attaches to side walls of the upper light channel.

Abstract: An LED light fixture is disclosed with an elongated housing that forms a open lower light channel and an upper light channel that is juxtaposed to the open lower light channel with electronics cavity or conduit positioned there between. The open lower light channel includes elongated LED light engines positioned on support edges or structures for emitting indicted and reflected light out from the open lower light channel and the upper light channel includes an elongated LED light engine for emitting light therefrom. The LED light fixture preferably has an elongated reflective insert that extends through the open lower light channel and creates a reflection channel from which the indirect and reflected light is emitted.

Abstract: A lighting system is disclosed that includes elongated LED light fixture with one or more master circuit boards configured to power light emitting diodes. The elongated LED light fixtures include modular light boards with arrays of light emitting diodes that interchangeably couple to the matched connectors on the master circuit board. The system further includes elongated LED light fixtures with telescoping end features, fenestrated diffuser optics at ends of the elongated LED fight fixtures and/or pivoting corner features that join sections of the elongated LED light fixtures.

Abstract: A lighting device is disclosed that includes one or more master circuit boards configured to power light emitting diodes. The lighting device also includes modular light boards with arrays of light emitting diodes that interchangeably couple to the matched connectors on the master circuit board. The master circuit boards and the modular light boards are positioned within a housing with one or elongated diffuser lenses covering or embedding rows of light emitting diodes on the modular light boards. In accordance with the embodiments of the invention, master circuit boards and modular light boards are mounted in a stacked arrangement to emit light from opposed sides of the housing. In further embodiments of the invention, the lighting device includes a controller for independently controlling light output from each master circuit board.

Abstract: A lighting system with extended arrays of LED light engines is disclosed. The extended arrays of LED light engines are coupled to bent, curved, contoured or angled support surfaces withing a housing structure, coupled to bent, curved, contoured or angled surfaces of the housing structure or a combination thereof. Preferably, the extended arrays of LED light engines emit both upward and downward lighting through diffuse surfaces of the housing structure. In some embodiments of the invention the positions and/or angles of light emitting surfaces of extended arrays of LED light engines are adjustable within the housing structure.

Abstract: A lighting device is disclosed that includes one or more master circuit boards configured to power light emitting diodes. The lighting device also includes modular light boards with arrays of light emitting diodes that interchangeably couple to the matched connectors on the master circuit board. The master circuit boards and the modular light boards are positioned within a housing with one or more diffuser lenses. In accordance with the embodiments of the invention, master circuit boards and modular light boards are mounted in a stacked arrangement to emit light from opposed sides of the housing. In further embodiments of the invention, the lighting device includes a controller for independently controlling light output from each master circuit board.

Abstract: A lighting device is disclosed that includes one or more master circuit boards configured to power light emitting diodes. The lighting device also includes modular light boards with arrays of light emitting diodes that interchangeably couple to the matched connectors on the master circuit board. The master circuit boards and the modular light boards are positioned within a housing with one or more diffuser lenses. In accordance with the embodiments of the invention, master circuit boards and modular light boards are mounted in a stacked arrangement to emit light from opposed sides of the housing. In further embodiments of the invention, the lighting device includes a controller for independently controlling light output from each master circuit board.

Abstract: A modular lighting system for lighting a work area is disclosed. The system includes a power supply with power outlets for powering LED fixtures. The power supply preferably operates at or below a fixed power output level, such as to illuminate the work area using less than 0.2 Watts per square foot of energy. The lighting system also includes an occupancy sensor and/or a light level sensor for controlling lighting levels in the work area in response to detection of a person, ambient light levels and/or a combination thereof. The lighting system can also include computer unit with a micro-processor and a memory unit for running software or firmware the executes lighting programs, stores light usage histories and/or provides system reports to a remote computer by a wireless means and/or over a computer network.

Abstract: A modular lighting system for lighting a work area is disclosed. The system includes a power supply with power outlets for powering LED fixtures. The power supply preferably operates at or below a fixed power output level, such as to illuminate the work area using less than 0.2 Watts per square foot of energy. The lighting system also includes an occupancy sensor and/or a light level sensor for controlling lighting levels in the work area in response to detection of a person, ambient light levels and/or a combination thereof. The lighting system can also include computer unit with a micro-processor and a memory unit for running software or firmware the executes lighting programs, stores light usage histories and/or provides system reports to a remote computer by a wireless means and/or over a computer network.

Abstract: A modular lighting system for lighting a work area is disclosed. The system includes a power supply with power outlets for powering LED fixtures. The power supply preferably operates at or below a fixed power output level, such as to illuminate the work area using less than 0.2 Watts per square foot of energy. The lighting system also includes an occupancy sensor and/or a light level sensor for controlling lighting levels in the work area in response to detection of a person, ambient light levels and/or a combination thereof. The lighting system can also include computer unit with a micro-processor and a memory unit for running software or firmware the executes lighting programs, stores light usage histories and/or provides system reports to a remote computer by a wireless means and/or over a computer network.

Abstract: A lighting system and device for providing indirect light using free-cavity, double-diffusing configurations are disclosed. In accordance with the embodiments of the invention, a lighting fixture comprises a cover structure with a diffusion layer and a reflective plate that form the free-cavity. The free-cavity is preferably configured to provide an output of light from a light source positioned within the free-cavity with an efficiency rating of 70% or more and provide better than an 8:1 ceiling lighting contrast between the rows of fixtures with rows on 16 feet spacing. Further, in accordance with a preferred embodiment of the invention, a device is configured to couple to a ceiling structure and provide the indirect lighting from a fluorescent light source.