Patent ID: 7816855
Filing Date: 2010-10-19
Classification: H01L

Abstract:
1. An LED device having a diffuse reflective surface, the LED device comprising: an LED chip which emits light: a reflector cup having the LED chip arranged at a bottom surface thereof and having an angled inner surface, wherein the bottom surface and the angled inner surface surround the LED chip and diffusely reflect light from substantially all of the bottom surface and the angled inner surface; and a light conversion material provided in the reflector cup for converting the light emitted by the LED chip into visible light, wherein the light conversion material is a phosphor that is excited by the light emitted from the LED chip to emit visible light, and wherein the phosphor forms a phosphor layer in an upper portion of the reflector cup to be separated from the LED chip, and wherein the phosphor layer is separated from the LED chip by a vertical distance equal to or greater than a maximum length of the LED chip.