In an embodiment, a layer material configured to be arranged on a rotor blade tip of a helicopter comprises at least one light emitting or reflecting section that emits or reflects light after being exposed to a remote light source. The light source can be arranged on the body of the helicopter.

A method of making a light guide for an aircraft passenger cabin is provided. The method includes determining, for each of a plurality of points on an interior surface of the cabin, a corresponding fixture angle from a light fixture receptacle, a distance, and an angle of incidence at the point. The method also includes calculating an incident light intensity for each of the plurality of points, assuming a light source that emits light of uniform intensity at each fixture angle. Additionally, the method includes calculating a relative ray strength from each fixture angle needed to produce a desired incident light intensity at each corresponding point, and disposing a plurality of light extraction features on a unit length of the light guide such that at least one of a number and a size of the light extraction features are determined based on the relative ray strength for that fixture angle.

A light assembly for an aircraft evacuation system may comprise a first casing including a weighted portion. A light source may be disposed within the first casing. A second casing may be coupled to the first casing by a bearing. The first casing may be configured to rotate with respect to the second casing about an axis. A center of mass of the first casing may be offset from the axis.

The disclosure relates to a lighting unit for an aircraft interior having a floor with a baseplate fastenable to structure of the aircraft, and having a receiving region that faces away from the structure in a fastened state. An OLED light source having one or more OLEDs is arranged in the receiving region. The lighting unit also has a lens arranged on a side of the OLED light source facing away from the baseplate, and a frame mechanically retained in the receiving region by plug contacts such that the OLED light source and the lens are fastened in the receiving region. The plug contacts include electrical and mechanical contacts, wherein the OLEDs are supplied with electricity by at least one controllable driver, and wherein the contacts supply electricity to the OLED light source.

A lighting device including at least one first light source configured to emit a visible light through a first light emitting surface, at least one second light source spaced apart from the first light source and configured to emit light having a wavelength for sterilization through a second light emitting surface, and a housing having a bottom portion, on which the first and second light sources are disposed. The housing can include at least one sidewall portion connected to the bottom portion to enclose the first light source and the second light source in one common area, in which the first and second light emitting surfaces face substantially the same direction, and both the first light emitting surface and the second light emitting surface can be disposed at a different elevation from the bottom portion of the housing.

A lighting device including at least one first light source configured to emit a visible light through a first light emitting surface, at least one second light source spaced apart from the first light source and configured to emit light having a wavelength for sterilization through a second light emitting surface, and a housing having a bottom portion, on which the first and second light sources are disposed. The housing can include at least one sidewall portion connected to the bottom portion to enclose the first light source and the second light source in one common area, in which the first and second light emitting surfaces face substantially the same direction, and both the first light emitting surface and the second light emitting surface can be disposed at a different elevation from the bottom portion of the housing.

A lighting arrangement for an aircraft includes a navigational lighting group disposed along at least a leading edge of a wing of the aircraft and a light bar for non-navigational purposes extending along at least a portion of the leading edge of the wing, adjacent to the navigational lighting group, the light bar being disposed outboard of the navigational lighting group, the light bar being configured to emit non-navigational light along a length thereof.

A lighting arrangement for an aircraft includes a navigational lighting group disposed at a leading edge of a wing of the aircraft. The navigational lighting group includes at least one right of way light. The lighting arrangement also includes a light bar extending along at least a portion of the leading edge of the wing, adjacent to the navigational lighting group. The light bar is configured to emit light along a length thereof.

A light fixture is disclosed. The light fixture includes a frame, a light source disposed within and coupled to the frame, and a lens coupled to the light source. The light also includes a first fabric layer coupled to the frame at a first distance from the lens and a second fabric layer coupled to the frame at a second distance from the lens. The first fabric layer has a plurality of dots printed thereon.

A light fixture is disclosed. The light fixture includes a frame, a light source disposed within and coupled to the frame, and a lens coupled to the light source. The light also includes a first fabric layer coupled to the frame at a first distance from the lens and a second fabric layer coupled to the frame at a second distance from the lens. The first fabric layer has a plurality of dots printed thereon.