Patent ID: 8657470

Claim:
A lamp structure with adjustable illumination direction, configured to be coupled to a lamp holder, the lamp structure comprising: a first adaptor, configured to be coupled to the lamp holder; a second adaptor, disposed in the first adaptor, the second adaptor comprising: a pivoting element, having a cannular shape; and an assembly element, disposed in the pivoting element to separate the pivoting element into a first portion and a second portion, the assembly element having a plurality of first arc openings, wherein the first arc openings are symmetrically distributed around a center of the assembly element; an adaptor ring, disposed at a side of the second adaptor opposite the first adaptor; a rotating element, fixed to a first surface of the adaptor ring facing the second adaptor, the rotating element having a second surface facing the second adaptor and a plurality of bosses extending from the second surface towards the second adaptor, wherein the bosses respectively pass through the first arc openings of the second adaptor and are configured to move within the first arc openings; a heat sink, rotatably secured to the adaptor ring and located at a side of the adaptor ring opposite the second adaptor; and a lampshade, disposed at a side of the heat sink opposite the first adaptor.