Lighting assembly and method for manufacturing a lighting assembly
Lighting systems are described. A lighting system includes a first lead frame portion and a second lead frame portion. The first lead frame portion has at least a top surface, a bottom surface, and an opening. The second lead frame portion is within the opening of the first lead frame portion and has at least a top surface and a bottom surface. Light-emitting diode (LED) devices are each mechanically and electrically coupled to the top surface of the first lead frame portion and the top surface of the second lead frame portion. An electrically insulating and optically reflective material is disposed over exposed regions of the top surfaces of the first and second lead frame portions.
1. A lighting device comprising:
a leadframe comprising at least a first portion, a second portion, and a third portion separated from one another by spaces, each of the first portion, the second portion and third portion having a top surface and a bottom surface opposite the top surface;
at least two light emitting diode elements, each on the top surface of two of the at least the first portion, the second portion and the third portion; and
an optically reflective and electrically insulating material covering all exposed portions of the top surfaces of the at least the first portion, the second portion and the third portion and filling the spaces therebetween.
2. The device of claim 1 , wherein the top surface of the first, second and third portions is co-planar.
3. The device of claim 1 , wherein the bottom surface of at least two of the first, second and third portions of the leadframe are co-planar and exposed from the optically reflective and electrically insulating material.
4. The device of claim 1 , wherein the top surface of at least the first and second portions of the leadframe has a concave shape.
5. The device of claim 1 , wherein the at least two light emitting diode elements are coupled to the top surface of two of the at least the first, second and third portions via solder joints.
6. The device of claim 5 , wherein the optically reflective and electrically insulating material electrically insulates the solder joints such that the at least two LEDs can be controlled independently of one another.