Patent ID: 7775680
Filing Date: 2010-08-17
Classification: F21V,F21Y,G02F

Abstract:
1. A light emitting diode (LED) lamp assembly comprising: a housing having a base board, a top cover facing the base board, a plurality of sidewalls connecting with the top cover and the base board, and an opening defined in one of the sidewalls; a printed circuit board positioned on the base board; at least one LED fixed on the printed circuit board and electrically connecting with the printed circuit board, each LED comprising a light emitting side surface and an inverted conical top surface adjoining to the light emitting side surface, a portion of the light emitting side surface facing the opening, and the top surface facing the top cover; at least one light shielding member corresponding to the at least one LED and located between the at least one LED and the opening; wherein the at least one light shielding member defines a plurality of through light holes in two ends thereof, a size of a horizontal cross-section of each of the light holes progressively increases along a direction away from a center of the at least one light-shielding member, and the center of the at least one light-shielding member substantially aligns with a middle portion of the light emitting side surface of the at least one LED; a light reflective member located in the housing for reflecting light from the at least one LED and out via the opening; and a lamp cover covering the opening.