| 摘要 |
PROBLEM TO BE SOLVED: To provide a projection type display device which prevents unusual overheat caused by a lamp even when a cooling fan is stopped by a trouble. SOLUTION: The projection type display device cools a lamp 10 and a lamp power source 30 by a common cooling fan 40 by installing the power source at the neighboring area of a lamp house 20. In the case that the cooling fan 40 is stopped, the lamp power source 30 is also overheated by the influence of the overheat of the lamp 10, but as the lamp power source 30 is equipped with a thermal switch at its inside, the thermal switch at the inside of the lamp power source 30 operates, and breaks the lamp power source 30, accordingly the lamp 10 is put out, and the unusual overheat caused by the lamp 10 is prevented. |
