| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a projector constituted so that a noise is reduced and the miniaturization is facilitated by enhancing an optical member cooling effi ciency. SOLUTION: The projector is provided with a liquid-drop generator, and the optical member is cooled by utilizing the heat of gasification taken when the liquid-drop is gasified. The liquid-drop generated by the liquid-drop generator is directly stuck to the optical member, in the other manner, an air flow is generated so as to transfer the liquid-drop in the air flow, and then, the liquid drop is stuck to the optical member. Besides, the optical member is cooled by cooling-air, and the liquid-drop is removed after the cooling air contains the liquid-drop, then, the temperature of the cooling air is reduced beforehand.</p> |
