Lighting system for aircraft
AssigneeSaf-T-Glo Limited
InventorsSean Patrick O'Kell, Andrew Jon Hallett
Life of this patent
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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.
Claims20
An aircraft cabin lighting system comprising at least one cabin lighting unit, each cabin lighting unit comprising an electrical emergency exit sign arranged to be electrically illuminated;
- and at least one luminescent emergency exit sign, the luminescent emergency exit sign being portable, comprising an adhesive layer arranged to allow the luminescent emergency exit sign to be adhered to a surface, and being arranged to be adhered to a surface in the vicinity of the electrical emergency exit sign in use.
A method of providing emergency exit lighting in an aircraft cabin, the method comprising, in response to failure of an electrical emergency exit sign:
- obtaining a luminescent emergency exit sign from storage, the luminescent emergency exit sign comprising an adhesive layer arranged to allow the luminescent emergency exit sign to be adhered to a surface;
- activating the luminescent emergency exit sign;
- and
- applying the luminescent emergency exit sign to a surface in the vicinity of the failed electrical emergency exit sign such that the adhesive layer holds it in place as a replacement emergency exit sign.
A method of maintaining flight-worthiness of a passenger aircraft in instances of failure of an electrical emergency exit sign such that the aircraft can be flown back to a service point, the method comprising:
- obtaining a luminescent emergency exit sign from storage, the luminescent emergency exit sign comprising an adhesive layer arranged to allow the luminescent emergency exit sign to be adhered to a surface;
- activating the luminescent emergency exit sign;
- applying the luminescent emergency exit sign to a surface in the vicinity of the failed electrical emergency exit sign such that the adhesive layer holds it in place as a replacement emergency exit sign;
- completing an intended flight of the aircraft using the luminescent emergency exit sign as a required exit sign;
- and
- servicing the aircraft to repair or replace the failed electrical emergency exit sign in advance of a next flight of the aircraft.
Dependencies are inferred from the claim text.