Lumileds LLC

Maurice Kuijpers

Floris Maria Hermansz Crompvoets

Christian Kleijnen

Wilbert Heffels

Ralph Hubert Peters

Rob Bastiaan Maria Einig

Piet Verburg

A lighting device includes LED lighting elements arranged at a distance from each other. A leadframe comprising conductor segments interconnecting the LED lighting elements. The LED lighting elements each comprise an LED die element attached to one of the conductor segments of the leadframe. The LED lighting elements further each comprise a holding element disposed to hold at least two of the conductor segments of the leadframe which are partially embedded within one of the holding elements. In order to obtain good optical properties, the holding elements do not cover the LED die elements. According to the proposed manufacturing method, conductor segments of the leadframe are provided and holding elements are formed at a distance from each other, each partially embedding at least two conductor segments. Mounting portions on the conductor segments are not covered by the holding elements. LED die elements are attached to the mounting portions.

Arrangement of LEDs on a leadframe

The invention describes a method of manufacturing an LED lighting assembly, which method comprises the steps of preparing a flexible carrier for a number of light-emitting diodes; mounting the light-emitting diodes onto the flexible carrier; providing a flexible shaping element made of a material that can be bent into a desired shape or form and incorporating a heat spreader; and winding the flexible carrier about the flexible shaping element in a helical manner. The invention further describes such an LED lighting assembly, and an LED lighting unit comprising such an LED lighting assembly.

Method of manufacturing an LED lighting assembly

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Vlissingen, Netherlands

Maurice Kuijpers