A laminar flow diffuser with integrated lighting has a frame for supporting an air plenum and a lower housing. The air plenum receives conditioned air from a source of conditioned air. The lower housing is attached to the bottom of the plenum. An aperture plate damper installed below the top plenum regulates the flow of air from the plenum through the laminar flow diffuser. A clear or translucent the perforated diffuser face forms the outlet from the lower housing to the room below. LED strips are positioned around the inside periphery of the lower housing. A perforated reflector panel is position below the aperture plate damper and above the LED strips to spread the light from the LED strips across the perforated diffuser face.

A combination light and pressure relief vent (10) is disclosed which includes a housing (11), a valve assembly (12), and a light assembly (13). The housing include a multi-radial positionable valve body (16), port tube (17), and an outside louver (18). The valve assembly includes a low positive pressure exhaust valve (57), a high positive pressure exhaust valve (59), a low negative pressure intake valve (61), and a high negative pressure intake valve (62). The light assembly includes a heat sink casing (68) which defines a heat chamber (37) and which includes a projection (80) extending into the heat chamber. The casing is coupled to an LED module (57) wherein heat generated by the LED module is transferred through the casing to the heat chamber to warm the valve assembly.

The T-bar includes an elongate rigid spine extending between terminal ends including 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 system for a room with a ceiling is provided. Air supply equipment forms a laminar flow of clean air around a target by supplying the clean air downward from an outlet provided in a first area of the ceiling located directly above the target. Operating light equipment illuminates a working area on the target in a shadowless manner by multiple light sources provided in a second area around the first area. Surface light emitting equipment controls a surface light emitting member provided in a third area around the second area.

The present application provides a lighting apparatus, including a lighting apparatus body and a control circuit built in the lighting apparatus body, where the lighting apparatus body includes a plurality of LED lamps; the control circuit includes a motor drive sub-circuit and an LED drive sub-circuit, and the LED drive sub-circuit is connected to the LED lamps, and configured to provide an LED drive signal for the LED lamps; and the motor drive sub-circuit is configured to be connected to a load motor outside the lighting apparatus body, so as to provide a motor drive signal for the load motor.

An assembly for a motor vehicle includes a frame which defines an opening and a closing element and which can be moved between a first position in which the closing element at least partially closes the opening; and a second position in which the opening is open. The assembly further includes a lighting device configured to project a light beam onto the closing element when the latter is positioned in the second position and/or onto the closing element when the latter is moving between the first position and the second position, at least a portion of the projected light beam being reflected by the closing element out of the assembly.

Disclosed are examples of luminaires that provide light for general illumination and detect toxins in air via a biosensor. In the examples, a luminaire may include a light source configured to illuminate a space, a biosensor configured to detect toxins in the air, and an air circulation system. The light source may be configured to illuminate a space in which the luminaire is located with general illumination light. The biosensor may include an air permeable membrane, a substrate, and a microorganism that responds to the presence of a toxin in the air that comes in contact with the microorganism. A sensor may detect the response by the microorganism of the presence of the toxin, and output a signal indicating the presence of the toxin based on the detected response. A processor coupled to the luminaire may receive the outputted sensor signal and output a report of the toxin.

According to an aspect of this disclosure, a ventilation and lighting system including a main housing having an inlet opening and a discharge opening, a blower and motor assembly disposed within a housing and operable to move air through the inlet and outlet, a grille configured to be located at the inlet opening, the grille having a cavity and a plate defining a plurality of apertures through which air may move, and one or more lighting elements arranged within the cavity and an optical component covering the cavity. The system is arranged such that light developed by the one or more lighting elements mixes within the cavity and transmits through the optical component covering the cavity, and the system further includes a controller that coordinates operation of the blower and motor assembly and the one or more lighting elements from a remote location.

The invention provides a troffer-based lighting arrangement (100) comprising a troffer, a lighting window (140), and a lighting window retainer (150) configured to retain said lighting window (140) attached to said troffer, wherein the lighting window retainer (150) comprises a part (151) configured to host part of said lighting window (140), and wherein the lighting window retainer comprises a retainer opening (152), wherein the troffer comprises a troffer opening (132), and wherein the retainer opening (152) and the troffer opening (132) are configured in gaseous communication with each other. The invention also provides a system comprising the troffer-based lighting arrangement (100) and a device selected from the group consisting of a heating device, a ventilating device, and an air conditioning device, wherein said troffer-based lighting arrangement (100) further comprises a connection element for a functional connection with a gas port to provide a gaseous communication between the troffer opening (132) and the gas port.

An apparatus is provided for distributing indirect lighting and airflow to an individual passenger in a motor vehicle. That apparatus includes a vent body having an air inlet and an air outlet. An air valve is carried on the vent body. The air valve is displaceable between an open position and a closed position. A flexible air guide carried on the vent body is adapted to direct air from the air outlet toward the individual passenger.