Patent ID: 8313221

Claim:
An illuminating system comprising: a system casing, having a first air-hole area and a plurality of second air-hole areas, wherein adjacent two of the second air-hole areas keep a first distance apart from each other, one of the adjacent second air-hole areas keeping the first distance apart from each other keeps a second distance apart from the first air-hole area, the other one of the adjacent second air-hole areas keeping the first distance apart from each other keeps a third distance apart from the first air-hole area, the first distance is smaller than or equal to the second distance, and the first distance is smaller than or equal to the third distance; and a plurality of illuminating modules, disposed at the system casing, wherein each of the illuminating modules comprises: a diversion casing, having a third air-hole area and a fourth air-hole area; a light source, capable of generating a light beam emitted outside the system casing; a heat sink, disposed within the diversion casing and thermally coupled to the light source; and a fan, disposed at the third air-hole area and capable of generating an airflow passing through the third air-hole area, the heat sink, and the fourth air-hole area; wherein the third air-hole areas are located within the system casing and communicate with the first air-hole area, one of the adjacent second air-hole areas keeping the first distance apart from each other is corresponding to and communicates with the fourth air-hole area of one of the illuminating modules, the other one of the adjacent second air-hole areas keeping the first distance apart from each other is corresponding to and communicates with the fourth air-hole area of another of the illuminating modules.