Patent ID: 8382338

Claim:
A light-emitting diode (LED) lens for covering a LED light source, comprising a lens body made of a transparent material, said lens body having one side formed with a light-exit surface, said light-exit surface having a length along a longitudinal direction and being configured along the longitudinal direction into a pair of convex surface areas and a concave surface area interconnecting said convex surface areas, said concave surface area having a minimum width along a first transverse direction smaller than a maximum width of each of said convex surface areas along the first transverse direction, the first transverse direction being transverse to the longitudinal direction, said lens body further having another side opposite to said light-exit surface, said concave surface area further having a minimum distance from said another side along a second transverse direction smaller than a maximum distance of each of said convex surface areas from said another side along the second transverse direction, the second transverse direction being transverse to the longitudinal direction and the first transverse direction, said another side of said lens body being recessed to form a light-entrance portion adapted for receiving the LED light source, said light-entrance portion having a light-incident surface, said light-incident surface having a pair of end portions opposite to each other along the longitudinal direction and extending inclinedly away from said light-exit surface and away from each other, said light-entrance portion having a length along the longitudinal direction shorter than one-half of an overall length of said lens body along the longitudinal direction.