US Patent 10047913 Illuminating lamp

A lamp includes a base, an actuating power supply, a light source, a lamp tube and a lampshade. The base is provided with a first internal thread and a second internal thread. The actuating power supply is mounted in the base. The light source is mounted in the base. The light source includes a support rack mounted in the base and a plurality of filaments mounted on the support rack and electrically connected with the actuating power supply. The lamp tube is screwed onto the second internal thread of the base and covers the light source. The lampshade is screwed onto the first internal thread of the base and covers the lamp tube.