| 摘要 |
A projection type display apparatus in accordance with the present invention is provided with a lamp unit including a light source, a cooling fan cooling the light source, and a cooling wind guide tube guiding a cooling wind generated by the cooling fan to the lamp unit, and the cooling wind guide tube is structured such as to have a movable type rectification plate which is movable by its own weight, and cools the light source without being affected by an installed direction of the projection type display apparatus.
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