Patent ID: 7217011

Claim:
An airflow channel to direct air toward a lamp reflector comprising: an outer housing located at an outlet of a blower on one side of the lamp reflector with an outlet of the outer housing pointing toward the lamp reflector for the cooling air to flow toward the lamp reflector; and a guider located on one side of the outlet of the outer housing including: an upper slanted surface tilting upward from the central part of the guider to the upper part of the outlet of the outer housing; a side slanted surface tilting sideways from the central part of the guider to the other side of the outlet of the outer housing; a lower slanted surface tilting downward from the central part of the guider to the lower part of the outlet of the outer housing; and a compressing slanted surface shrinking one side of the outlet of the outer housing, forcing the cooling air toward the slanted surfaces; wherein the cooling air is directed to form an upper air flow, a side air flow, and a lower air flow, all toward the lamp reflector, with the guidance of the slanted surfaces.