Patent ID: 6227679
Filing Date: 2001-05-08
Classification: F21K,F21V,F21W,F21Y,H01L,H05B,Y02B,Y10S

Abstract:
An LED light bulb for use as an indicator lamp, task lamp, general lighting, decorative lamp, and traffic lamp, warning lamp, said LED light bulb comprising:an opaque conical base portion wherein said base portion includes a first circular opening and a second circular opening, the first circular opening having a larger diameter than the second circular opening;a generally circular and planar disc inserted into the first opening and affixed to the base portion, wherein said disc is a printed circuit board having a top planar surface and a bottom planar surface and is perpendicularly oriented with respect to base portion;a plurality of interconnected LEDs concentrically mounted on the top surface of said disc wherein at least one of said LEDs is perpendicularly oriented with respect to the disc and a portion of said LEDs is outwardly splayed at an angle relative to said disc and away from a central axis point of said disc for transmission of light having about the same light intensity at different viewing angles;a threaded socket attached to the second opening of the conical base portion; andcircuitry means located on the bottom surface of said disc and connected to the socket for providing a current to said LEDs.