Patent ID: 11932416
Assignee: LUFTHANSA TECHNIK AG
Field: Transport (Mechanical engineering)
Classification: CPC B | IPC B

Claim 0:
1. An escape path marking for an aircraft, the escape path marking comprising:
a lighting element, which luminesces in a dark environment, and which emits an emitted light, having an illuminant color tone, which exits at an outer side of the escape path marking;
a transparent protective element arranged between the lighting element and the outer side of the escape path marking;
a planar grid element, which comprises regularly alternating pure-color transparent regions and opaque regions, arranged between the lighting element and the outer side of the escape path marking, wherein the planar grid element has a latticed structure, wherein the transparent regions and the opaque regions of the grid element alternate such that adjacent regions are not perceivable separately from a distance of at least 90 cm from the outer side of the escape path marketing at a resolution of at least 2.0 arc minutes, and the mean distance between two adjacent opaque regions is 0.3 mm to 4 mm,
wherein a transparent pigmented element is formed and arranged between the lighting element and the outer side of the escape path marking, covering an entire upper surface of the lighting element, such that in an event of external illumination according to at least one predefined illumination scenario, a predefined base color tone results on the outer side of the escape path marking at the transparent regions of the grid element,
wherein the planar grid element and the transparent pigmented element are arranged such that, in the event of external illumination according to at least one predefined illumination scenario, a final visible pattern or color perceivable at the outer side the escape path marking results from color impressions from a mixture of colors of the opaque regions of the planar grid element and the base color tone provided by the transparent pigmented elements in all of the transparent regions of the planar grid element, and
wherein the base tone deviates from the illuminant color tone.