The table lamp contains a lamp base and an extension tube plugged vertically into the lamp base. A curved transparent light tube is attached along its entire length to a parallel and also curved back cover. The combination is joined to a top end of the extension tube. Two light generation assemblies are provided at the two ends of the light tube, respectively, each sequentially composed of a lens, a lens ring, a light emitting diode, a power circuit, a heat dissipation plate, and a heat dissipation element. The light from the light emitting diodes is projected into the light tube and, with a reflection layer along the inner wall of the light tube, the light is uniformly reflected towards the area beneath the table lamp.