Patent ID: 11920773
Assignee: ABB SCHWEIZ AG
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC F | IPC F

Claim 10:
11. A method for configuring emergency lighting from at least one given recess in a wall or ceiling of a building to at least one given area of interest of the building, comprising the steps of:
providing at least one luminaire, the at least one luminaire configured for mounting in a recess in a wall or ceiling of a building, wherein the recess is configured to be covered with a covering plate, the luminaire comprising:
a power supply unit that is configured to be mounted in the recess, the power supply unit comprising at least one power source and driver electronics for a plurality of illuminants;
an illuminant unit that is configured to be held outside the recess, the illuminant unit comprising a substrate on which a plurality of illuminants is mounted; and
a connector that attaches the illuminant unit to the power supply unit, contains electrical connections between the illuminants and the power supply unit, and is configured to traverse the covering plate;
adapting a driving current for the illuminants, the shape and/or dimensions of the substrate of the luminaire, and/or the shape and/or dimensions of a transparent cover of the luminaire such that light intensity produced by the luminaire on a floor in the given area of interest meets a predetermined specification, wherein an inner surface of the transparent cover comprises one single shape that is concave towards the illuminants, and an outer surface of the transparent cover comprises at least two shapes that are convex towards the area of interest; and
mounting the so-configured at least one luminaire to the at least one given recess.