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US 12,214,897 B2Granted
Escape route marking in vehicles
AssigneeLufthansa Technik AG
InventorWolfgang Sutter
Life of this patent
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Abstract
An illumination element marks escape routes in vehicles. The illumination element includes a planar substrate, which has: a base surface configured for fastening on a first side; and at least one planar electrical lighting element on a second side. A ratio of a surface area of the base surface to a thickness of the illumination element is greater than 500 mm, and a ratio of the surface area of the base surface to a mass of the illumination element is greater than 100 mm2/g.
Claims15
An illumination element for marking escape routes in vehicles, the illumination element comprising:
- a planar substrate comprising:
- a base surface configured for fastening on a first side;
- and
- at least one planar electrical lighting element on a second side,
- wherein a chargeable energy accumulator, a control circuit configured to control the at least one lighting element, an antenna configured to receive control signals, and an antenna configured to wirelessly transmit energy are provided on the substrate, and
- wherein a ratio of a surface area of the base surface to a thickness of the illumination element is greater than 500 mm, and a ratio of the surface area of the base surface to a mass of the illumination element is greater than 100 mm2/g.
3 more elements
Dependencies are inferred from the claim text.