Patent ID: 8267552

Claim:
A light-transmissive shell for a bulb or a lamp comprising, in combination: a lens body covering a LED light source and including a center, an outer top surface and an inner bottom surface opposite to the outer top surface, with the outer top surface of the lens body being structured as a convex face, with a thickness between the inner bottom surface and the outer top surface of the lens body being increasingly convergent around and from the center; and an extension portion including an outer surface and an inner surface opposite to the outer surface, with the outer surface of the extension portion extending around and from an outer edge of the outer top surface of the lens body, with the inner surface of the extension portion extending around and from an outer edge of the inner bottom surface of the lens body, with an arcuate surface formed as a joint between the inner bottom surface of the lens body and the inner surface of the extension portion, allowing a side angle light of the LED light source projected through the extention portion and the accurate surface.