| 摘要 |
PROBLEM TO BE SOLVED: To resolve the problem that a cooling effect is not sufficient because a light shielding plate which is provided in the vicinity of an exhaust fan for cooling a lamp, as measures against leakage of light of the lamp to the outside from the exhaust fan shields not only light but also exhausted air flow. SOLUTION: A radiator is provided at an air exhaust port of a housing. A radiation fin of the radiator is attached so as to be inclined or deformed to shield light of the lamp. Thus not only light leaked from the lamp is considerably reduced but also a radiation function can be improved. COPYRIGHT: (C)2006,JPO&NCIPI
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