A lighting device is disclosed. In various embodiments, the lighting device includes an optical system; a plurality of light sources arranged in a matrix, the plurality of light sources including a first plurality of light sources configured to irradiate a first region of the optical system with a first light color, a second plurality of light sources configured to irradiate a second region of the optical system with a second light color; and a processor configured to control interaction of the first plurality of light sources and the second plurality of light sources with a third plurality of light sources and to control mixing of the first light color and the second light color.

The present disclosure is directed to a blended wing body aircraft including a blended wing body, wherein the blended wing body is characterized by having no clear dividing line between wings and a main body along a leading edge of the aircraft, at least a rib, wherein the at least a rib runs longitudinally from fore to aft of the main body, and a plurality of transparent panels located in the top surface of the main body, wherein the plurality of transparent panels are located in channels, wherein the channels are separated by the at least a rib.

The present disclosure is directed to a blended wing body aircraft including a blended wing body, wherein the blended wing body is characterized by having no clear dividing line between wings and a main body along a leading edge of the aircraft, at least a rib, wherein the at least a rib runs longitudinally from fore to aft of the main body, and a plurality of transparent panels located in the top surface of the main body, wherein the plurality of transparent panels are located in channels, wherein the channels are separated by the at least a rib.

The invention relates to a light management device for a vehicle, in particular a railway vehicle, the vehicle comprising at least one car. The device comprises: at least one light source, the at least one light source emitting light radiation with at least one optical characteristic, at least one sensor selected from a sensor for measuring a passenger density aboard the vehicle, such as an axle load sensor, a vehicle position sensor, and/or a clock, a control unit connected to the at least one sensor, and to the at least one light source, the control unit being configured to control the at least one optical characteristic of the light radiation based on a measurement of the at least one sensor.

The invention relates to a light management device for a vehicle, in particular a railway vehicle, the vehicle comprising at least one car. The device comprises: at least one light source, the at least one light source emitting light radiation with at least one optical characteristic, at least one sensor selected from a sensor for measuring a passenger density aboard the vehicle, such as an axle load sensor, a vehicle position sensor, and/or a clock, a control unit connected to the at least one sensor, and to the at least one light source, the control unit being configured to control the at least one optical characteristic of the light radiation based on a measurement of the at least one sensor.

An air duct system comprising an air duct having a main body, a visible light source, and one or more photovoltaic devices. The main body of the air duct defines a passageway having a reflective inner surface. The visible light source is configured to generate visible light, where the visible light source directs the visible light along the reflective inner surface of the air duct. The one or more photovoltaic devices are disposed along the reflective inner surface of the air duct, where a portion of the visible light generated by the visible light source is converted into electrical power by the one or more photovoltaic devices.

A cabin light includes a panel coupled with a light source. The panel includes a pair of longitudinal portions extending along a longitudinal axis of the cabin light, a first lateral portion extending between the longitudinal portions along a lateral axis of the cabin light, and a second lateral portion extending between the longitudinal portions along the lateral axis. Each longitudinal portion includes a first surface and a second surface disposed at an offset from the first surface. The first lateral portion defines a first length and includes a first raised surface. The second lateral portion defines a second length, and includes a second raised surface. The cabin light also includes cover in alignment with the light source. The cabin light further includes a switch disposed between the cover and the second lateral portion.

A housing for a circuit includes a top wall that defines an aperture configured for receiving a fastener, and a bottom wall integrally formed with the top wall, positioned directly below the aperture in a height direction, and extended across the aperture with respect to the height direction. The circuit is mounted on a bottom side of the bottom wall. The top wall and the bottom wall define an interior of the housing, and cooperate to obstruct egress of debris from the interior of the housing to the circuit at the bottom side of the bottom wall.

A housing for a circuit includes a top wall that defines an aperture configured for receiving a fastener, and a bottom wall integrally formed with the top wall, positioned directly below the aperture in a height direction, and extended across the aperture with respect to the height direction. The circuit is mounted on a bottom side of the bottom wall. The top wall and the bottom wall define an interior of the housing, and cooperate to obstruct egress of debris from the interior of the housing to the circuit at the bottom side of the bottom wall.

A housing for a circuit includes a top wall that defines an aperture configured for receiving a fastener, and a bottom wall integrally formed with the top wall, positioned directly below the aperture in a height direction, and extended across the aperture with respect to the height direction. The circuit is mounted on a bottom side of the bottom wall. The top wall and the bottom wall define an interior of the housing, and cooperate to obstruct egress of debris from the interior of the housing to the circuit at the bottom side of the bottom wall.