Patent ID: 7204607

Claim:
A light emitting diode (LED) lamp comprising: a substrate; a cluster of LEDs, which are arranged two-dimensionally on the substrate; and an interconnection circuit, which is electrically connected to the LEDs, wherein the LEDs include a first group of LEDs, which are located around the outer periphery of the cluster, and a second group of LEDs, which are located elsewhere in the cluster, wherein the interconnection circuit has an interconnection structure for separately supplying drive currents to at least one of the LEDs in the first group and to at least one of the LEDs in the second group separately from each other, wherein each said LED includes a lens for controlling the spatial distribution of the emission of the LED, and wherein the lens of the LEDs in the second group has a structure that realizes a narrower spatial distribution than the lens of the LEDs in the first group.