US Patent 7473002 Lamp having rotatable patterns

A lamp includes a base, a lamp socket fixedly mounted on the base, a rotation disk rotatably mounted on the base, a housing fixedly mounted on the rotation disk and having a plurality of patterns, and a plurality of light emitting members mounted on the lamp socket and hidden in the housing. Thus, the housing is rotatable relative to the light emitting members, and the patterns of the housing are rotatable and movable relative to the light emitting members, so that the light beams of the light emitting members are projected outwardly through the patterns of the housing to produce rotatable and movable images by rotation of the housing, thereby enhancing the aesthetic quality of the lamp.