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    • 46. 发明申请
    • IMAGE PROJECTION APPARATUS
    • 图像投影设备
    • US20130242270A1
    • 2013-09-19
    • US13777505
    • 2013-02-26
    • Yasutada TsukiokaTetsuya FujiokaMasamichi YamadaNaoyuki IshikawaHideo Kanai
    • Yasutada TsukiokaTetsuya FujiokaMasamichi YamadaNaoyuki IshikawaHideo Kanai
    • G03B21/16
    • G03B21/16
    • An image projection apparatus includes a light source; an intake port to take in low-temperature air into the image projection apparatus; an exhaust port to exhaust air from the image projection apparatus; a ventilation unit to generate an air flow from the intake port to the exhaust port; a first flow path for hot-air exhaust having increased its temperature by taking heat from the light source; a second flow path for a part of the low-temperature air, taken from the intake port; and a mixing unit to mix the hot-air exhaust flowing from the first flow path and the low-temperature air flowing from the second flow path. The air mixed and exhausted from the mixing unit converges with another part of the low-temperature air, flowing from a third flow path set outside the mixing unit, at a space between the mixing unit and the exhaust port.
    • 一种图像投影装置,包括光源; 将低温空气吸入图像投影装置的进气口; 从图像投影装置排出空气的排气口; 通气单元,用于产生从进气口到排气口的气流; 用于热空气排出的第一流路,其通过从光源吸收热量而增加其温度; 从进气口取出一部分低温空气的第二流路; 以及混合单元,用于混合从第一流路流出的热空气排气和从第二流路流出的低温空气。 从混合单元混合和排出的空气与混合单元和排气口之间的空间处的混合单元外部的第三流动路径流动的另一部分低温空气会聚。