| 摘要 |
PURPOSE:To miniaturize an illumination lamp by exhausting the high heat generated by the lamp from a frame constituting the illumination lamp, forming the environment in the frame that a member fitted in the frame is not affected by the high heat generated by the lamp, and integrating the members under this condition. CONSTITUTION:The outside air is sucked into a frame 20 through an L-shaped suction tube 21 arranged on the front body of the frame 20 by the operation of an exhaust fan 15 with a duct. The outside air is exhausted through the exhaust window 23 of the rear body of the frame 20 through a duct portion constituted of a honeycomb forming tube, air suction ports 16a and an air guide section by the exhaust fan 15. The exhaust air passes the duct 20 through the small air suction ports 16a, the exhaust flow speed is accelerated, much outside air is taken into the duct 20 and exhausted, thus the air-cooling function in the frame 20 is fully exerted. The flow of the outside air sucked into the frame 20 is directed to a light projecting member side by the operation of a fan 7x so that no heat is accumulated inside a concave reflecting mirror. An illumination lamp can be miniaturized. |
