An elongated lead frame (100, 150, 300) for a plurality of solid state light emitters (116, 460... 463, 460), the elongated lead frame (100, 150, 300) comprising: - a first patterned layer of an electrically conductive material, the first patterned layer comprising two electrically conductive tracks (102, 104, 312, 314) that comprise first structures (316, 316') for a first layer of a stack of light emitter islands (106, 106', 106") and two electrically conductive connections between the first structures (316, 316'), at least one of the electrically conductive tracks (312, 314) comprises in between pairs of neighboring first structures a winded portion for forming a flexible electrically conductive connection in between the pairs of neighboring first structures, - a second patterned layer of an electrically isolating material, the second patterned layer comprising second structures for a second layer of the stack of the light emitter islands, the second patterned layer is provided on top of the first patterned layer and the second structures are provided on the first structures (316, 316'), - wherein the light emitter islands (106, 106', 106") have a rigid structure, and - wherein in between pairs of neighboring light emitter islands the first electrically conductive track (312 or 314) is not mechanically coupled to the winded portion of the second electrically conductive track by means of a rigid material; and - a third patterned layer of an electrically conductive material, the third patterned layer comprising third structures (334, 336) for a third layer of the stack of the light emitter islands, the third pattern layer is provided on top of a stack formed by the first patterned layers and the second patterned layer, - wherein the third structures (334, 336) are provided on the second structures at an opposite surface of the second structures than the surface to which the first structures (316, 316') are provided. - a first patterned layer of an electrically conductive material, the first patterned layer comprising two electrically conductive tracks (102, 104, 312, 314) that comprise first structures (316, 316') for a first layer of a stack of light emitter islands (106, 106', 106") and two electrically conductive connections between the first structures (316, 316'), at least one of the electrically conductive tracks (312, 314) comprises in between pairs of neighboring first structures a winded portion for forming a flexible electrically conductive connection in between the pairs of neighboring first structures, - a second patterned layer of an electrically isolating material, the second patterned layer comprising second structures for a second layer of the stack of the light emitter islands, the second patterned layer is provided on top of the first patterned layer and the second structures are provided on the first structures (316, 316'), - wherein the light emitter islands (106, 106', 106") have a rigid structure, and - wherein in between pairs of neighboring light emitter islands the first electrically conductive track (312 or 314) is not mechanically coupled to the winded portion of the second electrically conductive track by means of a rigid material; and - a third patterned layer of an electrically conductive material, the third patterned layer comprising third structures (334, 336) for a third layer of the stack of the light emitter islands, the third pattern layer is provided on top of a stack formed by the first patterned layers and the second patterned layer, - wherein the third structures (334, 336) are provided on the second structures at an opposite surface of the second structures than the surface to which the first structures (316, 316') are provided.