Abstract: An aircraft cabin lighting system comprises one or more cabin lighting units, each cabin lighting unit comprising an emergency exit sign arranged to be electrically illuminated; and one or more luminescent emergency exit signs. The luminescent emergency exit signs are portable, and each comprise an adhesive layer arranged to allow the luminescent emergency exit sign to be adhered to a surface. The signs are arranged to be adhered to a surface in the vicinity of the electrical emergency exit sign in use, and do not require electricity to function.

Abstract: An aircraft cabin lighting system comprises one or more cabin lighting units, each cabin lighting unit comprising an emergency exit sign arranged to be electrically illuminated; and one or more luminescent emergency exit signs. The luminescent emergency exit signs are portable, and each comprise an adhesive layer arranged to allow the luminescent emergency exit sign to be adhered to a surface. The signs are arranged to be adhered to a surface in the vicinity of the electrical emergency exit sign in use, and do not require electricity to function.

Abstract: A marker is arranged to indicate the presence of ultraviolet radiation. The marker includes at least an emitting layer having a fluorescent material arranged to emit visible light in a first range of wavelengths in response to excitation by ultraviolet radiation in a second range of wavelengths. The emission of visible light is reversible, and the marker is reusable. The marker may be a warning sign, and may be adhered to a surface or incorporated into a freestanding portable apparatus.

Abstract: An aircraft emergency guidance assembly adapted to be mounted in an aircraft cabin comprises a longitudinally extending layer of photoluminescent material and a cover over the photoluminescent material. The assembly has a height and a width and a ratio of the width to height is from 0.5:1 to 3.5:1.

Abstract: An aircraft emergency sign comprising a base layer comprising a photoluminescent material arranged to be charged by electromagnetic wavelengths in a first range and arranged to emit electromagnetic emissions in a second range; a barrier layer; and a print layer, the print layer being printed with at least one of a color or a pattern wherein the print layer is above the barrier layer and on a side remote from the base layer, and wherein the print layer is at least semi-transparent to wavelengths in the first range and the second range, the sign further comprising a mask layer provided between the barrier layer and the print layer.

Abstract: A method of manufacturing an aircraft photoluminescent marker that comprises a substrate includes providing an ink or coating adapted to be cured with ultra violet (UV) radiation and printing one or more markings directly onto the substrate of the photoluminescent marker with the ink or coating, followed by curing the ink or coating with UV radiation. The substrate is one of a photoluminescent material or a housing, and the marking comprises at least one of a pattern, wording, images, blocks, or indicia.

Abstract: A marker is arranged to indicate the presence of ultraviolet radiation. The marker includes at least an emitting layer having a fluorescent material arranged to emit visible light in a first range of wavelengths in response to excitation by ultraviolet radiation in a second range of wavelengths. The emission of visible light is reversible, and the marker is reusable. The marker may be a warning sign, and may be adhered to a surface or incorporated into a freestanding portable apparatus.

Abstract: An aircraft emergency sign comprising a base layer comprising a photoluminescent material arranged to be charged by electromagnetic wavelengths in a first range and arranged to emit electromagnetic emissions in a second range; a barrier layer; and a print layer, the print layer being printed with at least one of a color or a pattern wherein the print layer is above the barrier layer and on a side remote from the base layer, and wherein the print layer is at least semi-transparent to wavelengths in the first range and the second range, the sign further comprising a mask layer provided between the barrier layer and the print layer.

Abstract: An aircraft includes an aircraft cabin having a number of rows of seats, at least one aisle, and at least one exit. An emergency lighting system having a first and second lines on opposing sides of the aisle, each line comprising a non-continuous series of photoluminescent markers separated by at least a longitudinal distance in the direction of the respective line. An exit path identifier is arranged to guide passengers from the aisle to the exit. Each line comprises an alternating series of first and second markers. The first photoluminescent markers have a first length and the second markers have a second length, the first length either the same as or shorter than the second length. At least the second markers are located on or adjacent to a seat adjacent to the aisle and the first markers are arranged to block the non-exit paths.

Abstract: 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.

Abstract: A method of manufacturing an aircraft photoluminescent marker that comprises a substrate includes providing an ink or coating adapted to be cured with ultra violet (UV) radiation and printing one or more markings directly onto the substrate of the photoluminescent marker with the ink or coating, followed by curing the ink or coating with UV radiation. The substrate is one of a photoluminescent material or a housing, and the marking comprises at least one of a pattern, wording, images, blocks, or indicia.

Abstract: An aircraft includes an aircraft cabin having a number of rows of seats, at least one aisle, and at least one exit. An emergency lighting system having a first and second lines on opposing sides of the aisle, each line comprising a non-continuous series of photoluminescent markers separated by at least a longitudinal distance in the direction of the respective line. An exit path identifier is arranged to guide passengers from the aisle to the exit. Each line comprises an alternating series of first and second markers. The first photoluminescent markers have a first length and the second markers have a second length, the first length either the same as or shorter than the second length. At least the second markers are located on or adjacent to a seat adjacent to the aisle and the first markers are arranged to block the non-exit paths.

Abstract: 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 lm 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.

Abstract: Non-emergency illumination apparatus (10) arranged in use to mark a location of an article, fixture or fitting in an aircraft cabin, the apparatus including: an emitting layer (2) including a photoluminescent material, the photoluminescent material emitting visible light in a first region of the electromagnetic spectrum in response to excitation by light from a second region of the electromagnetic spectrum, different to the first region; and a protective layer (6) overlying the emitting layer, the protective layer transmitting light from the first and second regions of the electromagnetic spectrum, wherein the non-emergency illumination apparatus is constructed and arranged to be placed in proximity to an article, fixture or fitting, such that the apparatus marks the location of the article, fixture or fitting when excited by light from the second region of the electromagnetic spectrum. The illumination apparatus can comprise a carrier matrix.

Abstract: A lighting system for an aircraft cabin includes an electrical light source and a photoluminescent light source. The electrical light source is provided at or near a ceiling of the aircraft cabin and the photoluminescent light source is arranged at or near floor level. The photoluminescent light source defines a path along which passengers can move to an exit and is located in an area that receives a light output from the electrical light source to charge the photoluminescent light source. The electrical light source is adjustable to alter the orientation of the light source to concentrate the light output in the area of the photoluminescent light source to enhance charging of the photoluminescent light source by the electrical light source.

Abstract: Non-emergency illumination apparatus (10) arranged in use to mark a location of an article, fixture or fitting in an aircraft cabin, the apparatus including: an emitting layer (2) including a photoluminescent material, the photoluminescent material emitting visible light in a first region of the electromagnetic spectrum in response to excitation by light from a second region of the electromagnetic spectrum, different to the first region; and a protective layer (6) overlying the emitting layer, the protective layer transmitting light from the first and second regions of the electromagnetic spectrum, wherein the non-emergency illumination apparatus is constructed and arranged to be placed in proximity to an article, fixture or fitting, such that the apparatus marks the location of the article, fixture or fitting when excited by light from the second region of the electromagnetic spectrum. The illumination apparatus can comprise a carrier matrix.

Abstract: A marker for illuminating an area of an aircraft, the marker including a photoluminescent material arranged to emit blue visible light in response to an excitation and wherein the photoluminescent material has an emission spectrum with a maximum peak intensity of from 450 nm to 510 nm and optionally substantially 490 nm. The photoluminescent material has a performance characteristic such that the emissivity is at least 0.3 mcd/m2 12 hours after cessation of charging at 25 lux for 45 mins optionally at least 30 mcd/m2 6 hours after cessation of charging. The photoluminescent material comprises at least a main pigment containing a Europium and Dysprosium doped strontium aluminate with the formula Sr4Al14O25:Eu,Dy and optionally one or more further phosphorescent pigments. A marker system is disclosed for illuminating areas of an aircraft, the system including a plurality of markers in accordance with the invention. Also disclosed is an aircraft including a passenger cabin; and a marker system as disclosed.

Abstract: An aircraft marking system for an external surface of an aircraft comprises at least one of a photoluminescent material that provides visibility in darkness, a reflective material that provides visibility when illuminated by a light source, and color that provides visibility in daylight. The marking system is applied to the wings, especially wing tips and other areas of the aircraft to reduce the risk of damage from impacts when the aircraft is on the ground and/or to indicate areas for accessing the interior of the aircraft in an emergency.

Abstract: A photoluminescent guide for an emergency lighting system includes a housing having a first end, a second end opposite the first end, and a longitudinal slot extending between the first end and the second end. A one-piece composite insert is disposed within the longitudinal slot. The one-piece composite insert includes a photoluminescent layer and a light-transmitting layer integrally secured to the photoluminescent layer. The one-piece composite insert is configured to receive light at the photoluminescent layer through the light-transmitting layer and to emit light from the photoluminescent layer through the light-transmitting layer.

Abstract: A lighting system for an aircraft cabin includes an electrical light source and a photoluminescent light source. The electrical light source is provided at or near a ceiling of the aircraft cabin and the photoluminescent light source is arranged at or near floor level. The photoluminescent light source defines a path along which passengers can move to an exit and is located in an area that receives a light output from the electrical light source to charge the photoluminescent light source. The electrical light source is adjustable to alter the orientation of the light source to concentrate the light output in the area of the photoluminescent light source to enhance charging of the photoluminescent light source by the electrical light source.