Patent ID: 7753564

Claim:
An illumination lamp comprising: at least one solid-state lighting member for generating light; and a lampshade arranged corresponding to the at least one solid-state lighting member, the lampshade having an array of lenses, each lens comprising an incidence surface for receiving the light emitted from the at least one solid-state lighting member, and an opposite emitting surface for emission of the light to the ambient environment, one of the incidence surface and the emitting surface being a concave surface elongated along a first direction, the other of the incidence surface and the emitting surface being a convex surface elongated along a second direction intersecting the first direction, at least one elongated micro-structure being formed on the concave surface, the at least one elongated micro-structure extending along the first direction, the micro-structure being configured for increasing a radiating area of the light entering the lampshade along the second direction, the convex surface being configured for contracting the radiating area of the light along the first direction.