Photoluminescent signs
AssigneeSaf-T-Glo Limited
InventorsSean Patrick O'Kell, Andrew Jon Hallett
Life of this patent
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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.
Claims14
An aircraft comprising a cabin having at least one emergency sign, the 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 and wherein the print layer is above the barrier layer and on a side remote from the base layer, the print layer being at least semi-transparent to wavelengths in the first range and the second range, the emergency sign further comprising a mask layer provided between the barrier layer and the print layer.
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 emergency sign further comprising a mask layer provided between the barrier layer and the print layer.
Dependencies are inferred from the claim text.