Abstract: An aircraft passenger service unit signage placard adapted to be retrofitted to a passenger service unit, the placard comprising at least a first signage area and a second signage area, wherein the first signage area is arranged to be illuminated by a switchable illumination means in the passenger service unit and wherein the placard comprises a first and a second layer and photoluminescent material is provided on at least one of the first and second layers of the placard in the second signage area, the second signage area having at least one first icon illuminated by the photoluminescent material such that the first icon is always illuminated in use.

Abstract: An LED lighting assembly (1) comprising a cassette (2), a lens, a printed circuit board, PCB, (6) having at least one LED light source mounted thereon, the lighting assembly comprising an LED driver circuit arranged to maintain conduction in the circuit, the PCB using a first amount of power and wherein the LED driver circuit is arranged to simulate use of a second amount of power, the second amount being lower than the first amount. The LED lighting assembly comprises a capacitor arranged to be activated when a voltage across the LED driver circuit is below a first predetermined level. A resistor or resistor/capacitor combination is connectable to a trickle sensor in a passenger service unit (PSU).

Abstract: An aircraft LED retrofit modular lighting system adapted to be fitted into an aircraft in place of an existing lighting system wherein the retrofit lighting system is modular and comprises at least a housing for an LED lighting unit and a plurality of fixing brackets, the housing being formed of a plurality of components and comprising an elongate tray, at least a first end connector connectable to a first end of the tray, and an elongate lid attachable to the tray wherein the first end connector comprises a power connector fitting, arranged to be selected from at least a first and a second power connector socket, the first and the second power connector sockets being adapted to be interchangeably connected to the power connector fitting, and wherein the first power connector socket is arranged to connect to a first type of aircraft power supply system and the second power connector socket is arranged to connect with a second type of aircraft power supply system.

Abstract: An LED lighting assembly (1) is disclosed which is arranged to produce a predetermined non-circular light pattern the LED lighting assembly comprising a cassette (2), a lens, a printed circuit board (6) having at least one LED light source (9) mounted thereon wherein the lighting assembly further comprises a lens holder (16) arranged to support the lens and the lens holder (16) being arranged to be rotatable and wherein the cassette and lens holder (16) are connected. The lens holder (16) and the cassette (2) may rotate together. The lens holder (16) may be arranged to rotate relative to the cassette (2). An arm (42) may be provided extending through a slot (44) in the cassette (2) and engageable by a fitter to align the predetermined light pattern relative a passenger space.

Abstract: An LED lighting assembly (1) is provided comprising a cassette (2), a lens, a printed circuit board (6) having at least one light source mounted thereon wherein the lighting assembly comprises a collimator (12) provided between the LED light source and the lens, the collimator (12) comprising an optical cavity in the form of a linear mixing chamber and wherein the or each wall (14) of the mixing chamber comprises a reflective surface. A diffuse reflector film may be provided. The lens may comprise a lens assembly (40) which may be a focusing lens assembly. In some embodiments an LED lighting assembly is provided comprising a cassette (2), a lens, a printed circuit board (6) having at least one LED light source mounted thereon wherein the lighting assembly comprises a light output from the or each LED light source and wherein the light output is arranged to pass through a bevelled aperture (32).

Abstract: An LED lighting assembly (1) comprising a cassette (2), a lens, a printed circuit board, PCB, (6) having at least one LED light source mounted thereon, the lighting assembly comprising an LED driver circuit arranged to maintain conduction in the circuit, the PCB using a first amount of power and wherein the LED driver circuit is arranged to simulate use of a second amount of power, the second amount being lower than the first amount. The LED lighting assembly comprises a capacitor arranged to be activated when a voltage across the LED driver circuit is below a first predetermined level. A resistor or resistor/capacitor combination is connectable to a trickle sensor in a passenger service unit (PSU).

Abstract: An aircraft LED retrofit modular lighting system adapted to be fitted into an aircraft in place of an existing lighting system wherein the retrofit lighting system is modular and comprises at least a housing for an LED lighting unit and a plurality of fixing brackets, the housing being formed of a plurality of components and comprising an elongate tray, at least a first end connector connectable to a first end of the tray, and an elongate lid attachable to the tray wherein the first end connector comprises a power connector fitting, arranged to be selected from at least a first and a second power connector socket, the first and the second power connector sockets being adapted to be interchangeably connected to the power connector fitting, and wherein the first power connector socket is arranged to connect to a first type of aircraft power supply system and the second power connector socket is arranged to connect with a second type of aircraft power supply system.

Abstract: An LED lighting assembly (1) is disclosed which is arranged to produce a predetermined non-circular light pattern the LED lighting assembly comprising a cassette (2), a lens, a printed circuit board (6) having at least one LED light source (9) mounted thereon wherein the lighting assembly further comprises a lens holder (16) arranged to support the lens and the lens holder (16) being arranged to be rotatable and wherein the cassette and lens holder (16) are connected. The lens holder (16) and the cassette (2) may rotate together. The lens holder (16) may be arranged to rotate relative to the cassette (2). An arm (42) may be provided extending through a slot (44) in the cassette (2) and engageable by a fitter to align the predetermined light pattern relative a passenger space.

Abstract: An aircraft passenger service unit placard comprising an integrated unit adapted to be retrofitted to an existing passenger service unit having a bi-pin lamp connection, the integrated unit comprising at least a first signage area and having at least one low energy illumination means arranged to illuminate the signage area, wherein the low energy illumination mean is optionally an LED unit and wherein the integrated unit comprises a first layer and a second layer separated by a light guide and wherein the illumination means is arranged as a side light in the light guide between the first layer and the second layer, the integrated unit further comprising at least one flexible connector arranged and adapted to connect to the bi-pin connection.

Abstract: An aircraft passenger service unit signage placard adapted to be retrofitted to a passenger service unit, the placard comprising at least a first signage area and a second signage area, wherein the first signage area is arranged to be illuminated by a switchable illumination means in the passenger service unit and wherein the placard comprises a first and a second layer and photoluminescent material is provided on at least one of the first and second layers of the placard in the second signage area, the second signage area having at least one first icon illuminated by the photoluminescent material such that the first icon is always illuminated in use.

Abstract: Emergency lighting for an aircraft employs a photoluminescent substrate that is activated by exposure to light wherein the substrate has portions with different light emitting characteristics whereby, in the absence of activating light, a first substrate portion provides a higher light output than a second substrate portion for an initial period after which the second substrate portion provides a higher light output than the first substrate portion.

Abstract: Receiver medium for electronic printing comprises an elongate sheet of material (12) at least one surface of which is capable of receiving an image by electronic printing, at least one longitudinal line of weakness (14, 16, 18) running along the length of the sheet, the sheet being in the form of a roll and the or each line of weakness being rupturable to part the sheet through the complete thickness thereof. The longitudinal line or lines of weakness divide the sheet into two or more regions (20, 22, 24, 26), each in the form of an elongate strip. In use, the receiver medium is fed to a printer in conventional manner, and typically two or more images (24, 26) printed electronically, side-by-side across the width of the sheet, one in each region. The sheet is then cut transversely (A-A, B-B), e.g. by a guillotine forming part of a printer, to sever the printed part from the remainder of the roll of medium.