Patent ID: 6488392
Filing Date: 2002-12-03
Classification: F21Y,G09F,H01L,Y10S

Abstract:
An LED diffusion assembly having a concave tip portion shaped and dimensioned for the diffusion of light emitted thereby, comprising:a bulb portion; first and second leads extending within the bulb portion; and at least one LED die embedded in the bulb portion and coupled to the first and second leads in a manner allowing for transfer of electrical energy to the at least one LED die; wherein the bulb portion includes a concave tip substantially opposite the at least one LED die, the concave tip being shaped and dimensioned for diffusing light emitted by the at least one LED die, and wherein the concave tip takes the form of a diamond pavilion including a plurality of facets and having a diameter D, a height H and a concave angle a at a base of the concave tip which are so dimensioned such that light emitted by the at least one LED die bends away from the diffusion assembly into the air.