A light system includes a main body defining an internal chamber, a lighting assembly secured to the main body, and an airflow circuit extending around a periphery of the lighting assembly. The lighting assembly includes at least one light unit configured to emit light. The airflow circuit is configured to direct airflow out of the main body underneath the lighting assembly.

A light system includes a main body defining an internal chamber, a lighting assembly secured to the main body, and an airflow circuit extending around a periphery of the lighting assembly. The lighting assembly includes at least one light unit configured to emit light. The airflow circuit is configured to direct airflow out of the main body underneath the lighting assembly. The lighting assembly also includes an air cleansing device that is configured to cleanse the air passing through the airflow circuit.

A panel for accumulation of aerosol particles in an indoor environment includes a surface plate and an electrostatic collector plate coupled to the surface plate and configured to hold an electrical charge to attract and accumulate aerosol particles. The panel may include or otherwise be coupled with an activation device.

The present invention relates to an electrical device provided in or attached to an air duct. The electrical device comprises a housing and an electrical body attached to the housing which extends at least partially into the housing and is adapted to connect a power source to an electrical element. The housing is provided with a passage for allowing air to flow between an end of the housing to be turned towards a room of the building and an end of the housing to be turned towards the air duct and for allowing air to flow in the space between an inner housing side and an outer side of the electrical body.

A lighting assembly for use in suspended T-Bar ceiling grid systems is provided comprising two linear lighting modules in a novel parallel arrangement. End plates are used to connect, support, and enclose longitudinal ends of the elongate body of each linear lighting modules at a predetermined and configurable spacing apart while simultaneously functioning as reflective faces for internal and external optical cavities. The configured gap spacing between individual linear lighting modules can be used to house and support components such as additional light sources, acoustic or decorative ceiling panels, HVAC components, or power systems, controls or sensors. Additional end plate embodiments can be configured to allow a T-bar to be placed in the configured gap spacing thereby enabling the mounting of the assembly in-line upon the longitudinal axis of a ceiling grid T-bar. Embodiments of linear lighting modules are presented comprising LED light sources, transmissive optical elements, light shaping lenses, reflectors and other functional components supported and housed within the elongate body. The transmissive optical elements may be backlit or edgelit from one or two sides and aligned horizontally or tilted relative to the ceiling grid plane. The linear lighting modules can provide a range of useful symmetric, asymmetric and tilted non-lambertian lighting distributions.

The T-bar includes an elongate rigid spine extending between terminal ends including, in some embodiments, either a fixed anchor or adjustable anchor for attachment to adjacent T-bars or other supports. An upper heat sink is provided on an upper portion of the spine to enhance heat transfer from the T-bar to air surrounding upper portions of the T-bar. A light housing is provided on a lower portion of the T-bar which is configured to support a lighting module therein, such as a light emitting diode (LED) light. A lower heat sink is provided above this light housing and integrated into a rest shelf which supports ceiling tiles adjacent the T-bar. A power supply is provided which can be removably attached to the T-bar and provide appropriately conditioned power for the lighting module.

A ventilating system includes a main housing defining an inlet configured to receive air into the main housing and an outlet configured to allow the air to exit the main housing. The system further includes a fan in the main housing and configured and arranged to generate a flow of air into the main housing through the inlet and from the main housing through the outlet. The system further includes a grille configured to be coupled to the main housing, a plate configured to be coupled to the grille, and a lens coupled to the plate.

An annular light emitting unit emits light from the inside of a louver toward an outer circumference, with respect to the entire circumference direction. A surface emitting unit emits light in a vertical direction directed opposite to a casing. Light intensity of the surface emitting unit is greater than light intensity of the annular light emitting unit.

A lighting assembly includes an upper mount having a pan gear and a plurality of indicator flanges. A lower mount is operably coupled to the lower mount and includes a pan motor and a tilt motor. A printed circuit board is operably coupled to the upper mount and includes a plurality of sensors. At least one sensor is selectively and operably coupled with the plurality of indicator flanges of the upper mount. A light module is operably coupled to the lower mount and includes a tilt gear operably coupled to the lower mount. A controller is operably coupled to the printed circuit board, the pan motor, and the tilt motor and is configured to rotate the lower mount and the light module via the pan motor and is configured to tilt the light module via the tilt motor.

The T-bar includes an elongate rigid spine extending between terminal ends including, in some embodiments, either a fixed anchor or adjustable anchor for attachment to adjacent T-bars or other supports. An upper heat sink is provided on an upper portion of the spine to enhance heat transfer from the T-bar to air surrounding upper portions of the T-bar. A light housing is provided on a lower portion of the T-bar which is configured to support a lighting module therein, such as a light emitting diode (LED) light. A lower heat sink is provided above this light housing and integrated into a rest shelf which supports ceiling tiles adjacent the T-bar. A power supply is provided which can be removably attached to the T-bar and provide appropriately conditioned power for the lighting module.