Lumileds LLC

Barbara Mülders

Christian Kleijnen

Florent Monestier

Georg Henninger

Danijel Labas

Frank Gubbels

The invention refers to a lighting device. The object to provide a lighting device in particular with flexible properties, wherein the mechanical robustness with respect to thermomechanical stresses is improved, is solved in that the lighting device comprises: at least one light-emitting element, wherein the at least one light-emitting element is arranged on connection elements for an electronic connection to the at least one light-emitting element, at least one encapsulating material surrounding at least part of the connection elements, wherein at least one connection element comprises at least one spring section. The invention further refers to a method for producing a lighting device and a use of a lighting device.

Lighting device comprising connection element with spring section

A method for producing a flexible lighting strip comprising multitude of functional elements, which are light-emitting diodes, comprise light-emitting diodes, or are interposers with light-emitting diodes. The functional elements are in at least two groups, each comprising at least two functional elements in electrical series connection. The groups are in an electrical circuit having at least an anode and a cathode track as outer lines. The functional elements are in an electrical parallel connection to the anode and cathode tracks. The groups are in a longitudinal arrangement so a first group's last functional element is next to a second group's first functional element. Each of the outer lines has a wire line having substantially circular wires that are bent building zones capable of receiving compressive and tensile stress. The electrical circuit provides a third wire line having a substantially circular wire as a center line arranged between the outer lines.

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Aachen, Germany

Barbara Mülders