Patent ID: 7458703
Filing Date: 2008-12-02
Classification: G02B,H01L

Abstract:
1. A light emitting diode (LED) package having a dual lens structure comprising: an LED chip; a lower structure including a pair of electric connection parts for supplying power to the LED chip, a package body holding the electric connection parts, the package body having a recess for upwardly guiding light from the LED chip, and a transparent encapsulant filed in the recess of the package body to seal the LED chip; an upper-hemispheric lower lens fixed to an upper surface of the lower structure with a bottom part thereof attached to an upper surface of the transparent encapsulant; and a funnel-shaped upper lens fixed to an upper end of the lower lens, the upper lens including an axially symmetrical reflecting surface for laterally reflecting light from the lower lens and an emitting surface for laterally emitting light reflected from the reflecting surface, wherein the lower lens has a first groove formed on an upper end around an axis thereof, and the upper lens has a first projection which is formed on a lower end thereof and inserted into the first groove of the lower lens, thereby being combined with the lower lens, wherein the upper lens further includes a plurality of second projections formed around the projection, and the lower lens further includes a plurality of second grooves formed around the groove for receiving the second projections.