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    • 14. 发明授权
    • Projector, and its filter renewal control method
    • 投影机及其过滤更新控制方法
    • US08403498B2
    • 2013-03-26
    • US12594884
    • 2008-01-31
    • Mitsuru KotakaShigekazu YamagishiYoshinobu NakajimaToshiyuki NoguchiYoshinari MatsumotoKenji Kunitake
    • Mitsuru KotakaShigekazu YamagishiYoshinobu NakajimaToshiyuki NoguchiYoshinari MatsumotoKenji Kunitake
    • G03B21/26
    • G03B21/16G03B21/145
    • A housing (17) that accommodates a light source (1), a display device (3), etc. has an intake aperture (18) and an exhaust aperture (24). A blowing unit (16, 23) sucks air in through the intake aperture and expels air out through the exhaust aperture. A filter unit (19) is disposed so that a filter (20) faces the intake aperture in a predetermined area between a rolling shaft (31a) and a take-up shaft (31b). A part of the filter facing the intake aperture is renewed by taking-up the filter from the rolling shaft onto the take-up shaft. A control unit (36) performs control so as to renew the filter for a range that is smaller than an opening area of the intake aperture, when a predetermined renewal condition is determined to be satisfied, based on the output of a detection unit (38, 39a, 39b) that detects a specific factor value relating to contamination of the filter, such as a cumulative display time, a temperature, an air pressure, etc. This reduces a noise occurring during the driving of a fan or a change in the rotational speed of the fan, which are associated with automatic filter renewal.
    • 容纳光源(1)的壳体(17),显示装置(3)等具有进气孔(18)和排气孔(24)。 吹风单元(16,23)通过进气孔吸入空气,并通过排气孔排出空气。 过滤器单元(19)被布置成使得过滤器(20)在滚动轴(31a)和卷取轴(31b)之间的预定区域中面向进气孔。 面向进气口的过滤器的一部分通过将过滤器从滚动轴卷取到卷取轴上来更新。 控制单元(36)基于检测单元(38)的输出,执行控制,以便当确定满足预定的更新条件时,使滤波器更新小于进气孔的开口面积的范围 ,39a,39b),其检测与过滤器的污染有关的特定因素值,例如累积显示时间,温度,空气压力等。这减少了在风扇驱动期间发生的噪音或者改变 与自动过滤更新相关的风扇转速。
    • 15. 发明申请
    • PROJECTOR, AND ITS FILTER RENEWAL CONTROL METHOD
    • 投影机及其过滤器再生控制方法
    • US20100128230A1
    • 2010-05-27
    • US12594884
    • 2008-01-31
    • Mitsuru KotakaShigekazu YamagishiYoshinobu NakajimaToshiyuki NoguchiYoshinari MatsumotoKenji Kunitake
    • Mitsuru KotakaShigekazu YamagishiYoshinobu NakajimaToshiyuki NoguchiYoshinari MatsumotoKenji Kunitake
    • G03B21/16
    • G03B21/16G03B21/145
    • A housing (17) that accommodates a light source (1), a display device (3), etc. has an intake aperture (18) and an exhaust aperture (24). A blowing unit (16, 23) sucks air in through the intake aperture and expels air out through the exhaust aperture. A filter unit (19) is disposed so that a filter (20) faces the intake aperture in a predetermined area between a rolling shaft (31a) and a take-up shaft (31b). A part of the filter facing the intake aperture is renewed by taking-up the filter from the rolling shaft onto the take-up shaft. A control unit (36) performs control so as to renew the filter for a range that is smaller than an opening area of the intake aperture, when a predetermined renewal condition is determined to be satisfied, based on the output of a detection unit (38, 39a, 39b) that detects a specific factor value relating to contamination of the filter, such as a cumulative display time, a temperature, an air pressure, etc. This reduces a noise occurring during the driving of a fan or a change in the rotational speed of the fan, which are associated with automatic filter renewal.
    • 容纳光源(1)的壳体(17),显示装置(3)等具有进气孔(18)和排气孔(24)。 吹风单元(16,23)通过进气孔吸入空气,并通过排气孔排出空气。 过滤器单元(19)被布置成使得过滤器(20)在滚动轴(31a)和卷取轴(31b)之间的预定区域中面向进气孔。 面向进气口的过滤器的一部分通过将过滤器从滚动轴卷取到卷取轴上来更新。 控制单元(36)基于检测单元(38)的输出,执行控制,以便当确定满足预定的更新条件时,使滤波器更新小于进气孔的开口面积的范围 ,39a,39b),其检测与过滤器的污染有关的特定因素值,例如累积显示时间,温度,空气压力等。这减少了在风扇驱动期间发生的噪音或者改变 与自动过滤更新相关的风扇转速。