An aircraft light includes a support board and a supporting profile. The support board supports at least one electric light source, in particular at least one LED. The support board has two lateral edges, which extend in a longitudinal direction of the support board and which are spaced apart from each other in a transverse direction (T) of the support board. The supporting profile comprises a receiving space for receiving and supporting the support board. The receiving space is defined by a base, extending in a longitudinal direction (L) of the supporting profile and in a transverse direction (T) of the supporting profile, and two opposing side walls protruding from the base. The supporting profile further comprises two undercut sections, forming opposing slots in the two opposing side walls that are dimensioned for accommodating a lateral edge of the support board, respectively.

A lighting apparatus includes a light emitting diode, in which the light emitting diode includes an n-type nitride semiconductor layer, an active layer located on the n-type nitride semiconductor layer, and a p-type nitride semiconductor layer located on the active layer. The light emitting diode emits light that varies from yellow light to white light depending on a driving current.

A searchlight assembly includes a mount structure adapted to be mounted to an external surface of a vehicle; a lens coupled to an extending from the mount structure and having an inner surface defining a cavity; a spherical motor disposed within the cavity and coupled to the mount structure to independently rotate about two perpendicular axes relative to the mount structure and the lens; and a light source disposed within the cavity and coupled to the spherical motor to be rotatable therewith about the two perpendicular axes.

A method of indicating a flight direction of an aerial vehicle, having a vehicle body and a plurality of rotors supported by the vehicle body, includes: on the basis of a momentary flight direction of the aerial vehicle, controlling a matrix of light sources, in particular a matrix of LEDs, which are mounted to the vehicle body of the aerial vehicle, to provide an illumination pattern to an observer of the aerial vehicle, with the illumination pattern comprising a flight direction indication, indicative of the momentary flight direction of the aerial vehicle.

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 combined aircraft navigation and anti-collision light, includes: at least one navigation light source and one anti-collision light source; a navigation light sensor, in operation outputting a light detection signal corresponding to an amount of light detected by the navigation light sensor; first and second optical systems, associated with navigation and collision light sources, wherein the first optical system is configured for shaping a navigation light output from light emitted by the at least one navigation light source and is configured for directing stray light from the at least one navigation light source to the navigation light sensor and a second optical system, associated with the at least one anti-collision light source and configured for shaping an anti-collision light output from light emitted by the at least one anti-collision light source; a lens cover, arranged over the light sources and optical systems for passing light therethrough.

A photoluminescent aircraft floor path marking system includes at least a flexible track having a housing incorporating a flexible, pliable, photoluminescent portion in which the track is bendable to a radius of 1 m or less and the track has a length of at least 2 m, where the track is pliable such that it can retain a rolled or bent radius. The track may be bendable to a radius of from 0.01 m to 1.0 m or optionally from 0.01 m to 0.5 m. The flexible track may be provided in lengths of from 3 m or greater or greater than 10 m. A flexible protective layer may be provided. The flexible housing may include a holder for the photoluminescent material.

Disclosed are embodiments of exterior aircraft assemblies integrating compatible elements. In one example, an integrated aircraft assembly includes an aerodynamic housing attachable to an aircraft, an antenna system including at least one antenna element housed within the aerodynamic housing, and a lighting system including at least one light fixture housed within the aerodynamic housing. The at least one antenna element and the at least one light fixture may be co-located within then housing or mounted separately on the housing.

A control Spot lights and display drone, which has an auxiliary generator or battery to supply power for a combination of voltage, for lighting LED spot light and other auxiliary equipment and powering the drones, a wire tethering device that can move in conjunction with the drone; the drone lighting also can change colors to create a flashing lights effect (as a like police cars flashing lights). The remote LED spotlight controller is for changing colors of the LED lights for outside party lights or blinking lights; or just bright white lights, a voltage reducer that's piggyback off the power wires; a battery or a generator for supplying power to power the drone body internal and external components such as a display and lights; a mounting bracket for mount the LED spot lights; a LED spot lights mounting bracket that has at least two holes for mounting LED spot lights to bracket; a voltage reducer; whereby the allowing the drone or drones to fly for a longer period of time, also longer illumination and illustrating time in the air; also, the use of solar cells to aid in powering the drones;

An illumination element marks escape routes in vehicles. The illumination element includes a planar substrate, which has: a base surface configured for fastening on a first side; and at least one planar electrical lighting element on a second side. A ratio of a surface area of the base surface to a thickness of the illumination element is greater than 500 mm, and a ratio of the surface area of the base surface to a mass of the illumination element is greater than 100 mm.sup.2/g.