Patent ID: 7227195

Claim:
An LED lamp comprising: a substrate having a principal surface; at least one light emitting diode (LED) chip, the chip being supported on the principal surface of the substrate; a reflector having an upper surface and side surfaces, the reflector being supported on the principal surface of the substrate and including an opening that defines a reflective surface surrounding a side surface of the LED chip; and an encapsulating resin layer having a generally rectangular solid shape, which covers the LED chip and the entire upper surface and side surfaces of the reflector together, wherein a portion of the encapsulating resin layer that covers the side surfaces of the reflector has an average thickness Dw, another portion of the encapsulating resin layer that has a substantially uniform thickness and covers a peripheral region of the upper surface of the reflector has a thickness Dh, and wherein a Dh/Dw ratio is in the range of 1.2 to 1.8.