| 摘要 |
The present invention provide a fan to generate airflow to pass around a lamp reflector with an organized figure of column and cone. A wake region is formed on a leeward surface of the lamp reflector, and a light cut is installed on the wake region. The light cut has a fixing end and is fixed on a side end surface of a lamp holder of the lamp by means of fastening bolts, the other end keeps a selected distance away from the lamp reflector and has a suitable distance along contours of the lamp reflector toward a rear end of the lamp reflector so as to that to prevent the light with high illumination going through the lamp reflector to the exhausting outlet for avoiding light leakage; hence, the exhausting outlet shall not be added inclined louvers and the windage is lowered down comparatively. Therefore, the heat-dissipating efficiency is raised to effectively reduce the heat loading of the projector, promote products life and decrease noise.
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