Abstract: A method of determining operating conditions of an exterior aircraft light comprising at least one light source includes: operating the at least one light source of the exterior aircraft light; repeatedly detecting light with a light detector, which is located at the exterior aircraft light and configured for providing light detection values; determining a smallest light detection value (Imin) provided by the light detector within a first period of time, and storing said smallest light detection value (Imin) as an element of a series of smallest light detection values (Imin); and evaluating the light detection values and the series of smallest light detection values (Imin) for detecting erosion of an optical component of the exterior aircraft light, for detecting the presence of ambient light and/or for detecting the presence of fog and/or clouds in front of the exterior aircraft light.

Abstract: An exterior helicopter light is configured to be mounted to a helicopter, in particular to an underside of the helicopter, the helicopter having a longitudinal axis (A). The exterior helicopter light comprises: a first set of light sources configured for emitting, in operation, light of a first color into a at least one rear sector of a ground below the helicopter, the at least one rear sector spatially extending around a projection of a rear portion of the helicopter onto the ground; and second set of light sources configured for emitting, in operation, light of a second color, which differs from the first color, into at least two forward sectors of the ground below the helicopter.

Abstract: A replaceable light head for an exterior aircraft light includes a mounting structure for attaching the replaceable light head to the exterior aircraft light; a power terminal, coupleable to an internal power supply of the exterior aircraft light; at least one light source, coupled to the power terminal for receiving power from the internal power supply of the exterior aircraft light; a data interface, coupleable to a controller of the exterior aircraft light; and a memory, coupled to the data interface and configured to receive and store usage data of the internal power supply of the exterior aircraft light.

Abstract: An aircraft beacon light for an aircraft wing with a foldable wing tip includes a housing, a lens cover, and at least one light source arranged between the housing and the lens cover, wherein the aircraft beacon light is configured to emit flashes of red light in operation, and wherein the housing and the lens cover are shaped to embed the aircraft beacon light into a hinge assembly coupling the foldable wing tip to a main wing portion of the aircraft wing.

Abstract: A method of operating an aircraft cabin illumination system, having a plurality of light modules with a set spatial distribution across an aircraft cabin, includes receiving an image; mapping the image to the set spatial distribution of the plurality of light modules; generating an illumination command set, including an operating command for each of the plurality of light modules, on the basis of the mapping of the image to the set spatial distribution of the plurality of light modules; and issuing the illumination command set to the plurality of light modules.

Abstract: An exterior aircraft light cover with integrated illumination includes a mounting portion, configured to be mounted to an exterior aircraft light housing; a light transmissive pane, supported by the mounting portion. The mounting portion and the light transmissive pane are configured to jointly close the exterior aircraft light housing. The cover also includes at least one photovoltaic device, which is configured for generating electric energy when illuminated; at least one electric storage device, which is configured for storing the electric energy generated by the at least one photovoltaic device; and at least one ancillary light source, which is operable with electric energy supplied by at least one of the at least one photovoltaic device and the at least one electric storage device.

Abstract: A lighting arrangement includes a light source configured for emitting light; a first reflector configured for collimating a first portion of the light emitted by the light source around a main light emission direction (D); and a second reflector arranged opposite to the light source. The second reflector is configured for reflecting a second portion of the light emitted by the light source back towards the light source for being diffusely reflected from the light source.

Abstract: 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.

Abstract: An exterior lamp for an aircraft may comprise a housing, a navigation light disposed within the housing, and a brake light disposed within the housing, wherein the brake light is configured to illuminate in response to a brake signal. The exterior lamp may include a controller disposed within the housing, and a tangible, non-transitory memory configured to communicate with the controller, the tangible, non-transitory memory having instructions stored thereon that, in response to execution by the controller, cause the controller to perform operations comprising receiving a brake signal and illuminating the brake light in response to a brake signal.

Abstract: Rotorcraft lighting equipment includes a plurality of lighting devices configured to be mounted to an exterior of a rotorcraft, wherein each of the lighting devices comprises a plurality of individually controllable lighting modules which are configured for emitting light into different spatial directions; and a lighting control device configured for individually controlling the operation of the plurality of lighting modules for generating a desired light distribution of the light emitted by the plurality of lighting modules.

Abstract: An aircraft light for a foldable wing tip of an aircraft includes a first lighting structure, including at least one first light source and a first optical system, with the at least one first light source and the first optical system in operation generating a first light output; a second lighting structure, including at least one second light source and a second optical system, with the at least one second light source and the second optical system in operation generating a second light output; wherein the first light output and the second light output are of the same color and wherein the first light output and the second light output are angled with respect to each other; and wherein the aircraft light is configured to control the at least one first light source and the at least one second light source depending on a wing tip orientation signal, which is indicative of an orientation of the foldable wing tip.

Abstract: A navigation light system for an unmanned aerial vehicle, such as a multicopter type unmanned aerial vehicle, includes: a plurality of light emission units. E of the plurality of light emission units has a unit-specific light emission direction and is configured to provide a light output around the unit-specific light emission direction. Each of the plurality of light emission units includes a multi-color light source capable of emitting red light, green light, and white light. The plurality of light emission units are arranged to jointly provide a navigation light pattern around the unmanned aerial vehicle and wherein the light outputs of adjacent light emission units have an overlap the navigation light system is configured to operate each of the plurality of light emission units depending on a relation between a momentary flight direction of the unmanned aerial vehicle and the respective unit-specific light emission direction.

Abstract: An exterior helicopter light is configured to be mounted to a helicopter, in particular to an underside of the helicopter, the helicopter having a longitudinal axis (A). The exterior helicopter light comprises: a first set of light sources configured for emitting, in operation, light of a first color into a at least one rear sector of a ground below the helicopter, the at least one rear sector spatially extending around a projection of a rear portion of the helicopter onto the ground; and second set of light sources configured for emitting, in operation, light of a second color, which differs from the first color, into at least two forward sectors of the ground below the helicopter.

Abstract: An aircraft light comprises at least one light source; at least one sensor, an operating mode selector, and a transmitter. The sensor is configured for detecting current operational conditions and providing at least one corresponding sensor signal. The operating mode selector configured for determining a suitable light emission of the at least one light source based on the at least one sensor signal. The operating mode selector is further configured for determining the amount of electrical power needed for generating the determined light emission. The transmitter configured for transmitting a power request signal indicating the determined amount of electrical power to a power supply.

Abstract: An aircraft beacon light includes a mounting plate having a central portion; a plurality of light sources arranged on the mounting plate around the central portion and facing away from the mounting plate; and a lens structure arranged over the plurality of light sources, wherein the lens structure is configured to reflect a first portion of light emitted by the plurality of light sources laterally outwards via total internal reflection; wherein the aircraft beacon light is configured to emit flashes of red light in operation.

Abstract: An exterior lamp for an aircraft may comprise a housing, a navigation light disposed within the housing, and a brake light disposed within the housing, wherein the brake light is configured to illuminate in response to a brake signal. The exterior lamp may include a controller disposed within the housing, and a tangible, non-transitory memory configured to communicate with the controller, the tangible, non-transitory memory having instructions stored thereon that, in response to execution by the controller, cause the controller to perform operations comprising receiving a brake signal and illuminating the brake light in response to a brake signal.

Abstract: A cover for an exterior aircraft light includes a lens cover structure, attachable to an exterior aircraft light housing and configured to close the exterior aircraft light housing, wherein the lens cover structure has an inside and an outside and is at least partially made of transparent material; and a wear indicator, attached to the inside of the lens cover structure, the wear indicator having a contrasted pattern visible from the outside of the lens cover structure through the transparent material.

Abstract: A helicopter anti-bird-collision system including a search light (2) and a control unit (35) which is configured for operating the search light (2) in a flash light mode by switching the search light periodically on and off.

Abstract: An illuminated aircraft passenger cabin gasper comprises an air outlet for outputting a flow of air into an aircraft passenger cabin and an air guide, movably arranged within the air outlet for adjusting the flow of air that includes a light guide. The gasper also includes at least one light source, arranged adjacent to the light guide for coupling light into the light guide. The light guide has a light output surface for coupling light out of the light guide into the aircraft passenger cabin.

Abstract: A replaceable light head for an exterior aircraft light includes a mounting structure for attaching the replaceable light head to the exterior aircraft light; a power terminal, coupleable to an internal power supply of the exterior aircraft light; at least one light source, coupled to the power terminal for receiving power from the internal power supply of the exterior aircraft light; a data interface, coupleable to a controller of the exterior aircraft light; and a memory, coupled to the data interface and configured to receive and store usage data of the internal power supply of the exterior aircraft light.