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    • 44. 发明申请
    • PROJECTOR
    • 投影机
    • US20110025984A1
    • 2011-02-03
    • US12844952
    • 2010-07-28
    • Kunihiko TakagiKaname NagataniAkira EgawaTetsuo ShimizuJoji KarasawaFumihide Sasaki
    • Kunihiko TakagiKaname NagataniAkira EgawaTetsuo ShimizuJoji KarasawaFumihide Sasaki
    • G03B21/16
    • G03B21/16
    • A projector includes: spatial light modulation devices; and a cooling duct configured to flow a cooling air for sequentially cooling the spatial light modulation devices, the cooling duct has a first flow path formed by portions including the light entrance surface of at least one of the spatial light modulation devices for the respective color lights, a second flow path formed by portions including the light exit surface of the corresponding spatial light modulation device, and a junction area where the cooling air flowing through the first flow path and the cooling air flowing through the second flow path join each other, and the junction area is disposed at a downstream position of the cooling air with respect to the spatial light modulation device provided for a predetermined color light whose light amount is the maximum in the respective color lights that enter the light entrance surface.
    • 投影机包括:空间光调制装置; 以及冷却管道,其构造成使冷却空气流动以顺序地冷却空间光调制装置,所述冷却管道具有由包括用于各个颜色的光的至少一个空间光调制装置的光入射面的部分形成的第一流路 由包括相应的空间光调制装置的光出射表面的部分形成的第二流路和流过第一流路的冷却空气和流经第二流路的冷却空气相互结合的接合区域,以及 接合区域相对于为进入光入射面的各色光中的光量最大的预定色光设置的空间光调制装置设置在冷却空气的下游位置。