Patent ID: 6635363
Filing Date: 2003-10-21
Classification: H01L,Y10S,Y10T

Abstract:
A light source comprising:a light emitting component which emits light when a voltage is applied, an intensity of the light varying across the light emitting component at the applied voltage; a layer of a phosphor material positioned to receive light emitted by the light emitting component, the phosphor material converting at least a portion of the light to light of a different wavelength; and a layer of a light transmissive material which spaces the phosphor material from the light emitting component, the thickness of the layer of light transmissive material varying across the layer of light transmissive material in proportion to the intensity of the light emitted by the light emitting component at the voltage, the thickness of the layer of light transmissive material being greater in regions where the light intensity is hither and smaller in regions where the light intensity is lower.