| 摘要 |
A heat sink for a directional recessed lighting fixture, comprises a wedge-shaped rotatable inner heat sink 110 configured to fit within a hollow interior of an outer heat sink 130. The inner heat sink has an opening 120, for transmission of light from a light source 125 it houses. The inner heat sink includes a gimbal shaft 115 pivotally mounted to an inside wall 132 of the outer heat sink. The inner heat sink has a vertical surface 112 formed on one side, which is close to inside wall 132, when rotated in one direction (Fig. 1A) to direct light in a first direction. The inner heat sink has an angularly offset surface 114 formed on an opposite side, which is close to the inside wall, when rotated in an opposite direction (Fig. 1B) to direct light in a second direction. |
