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    • 14. 发明申请
    • EMERGENCY EXIT INDICATOR INCORPORATING LED UNIT
    • 紧急出口指示灯配有LED单元
    • US20110146120A1
    • 2011-06-23
    • US12868681
    • 2010-08-25
    • TAY-JIAN LIULIN YANGFENG TIAN
    • TAY-JIAN LIULIN YANGFENG TIAN
    • G09F13/04
    • G09F13/04G09F13/18
    • An emergency exit indicator includes a flat housing and a light source received in the housing. The housing has a length greater than a width thereof. The housing includes a panel provided with a sign thereon to indicate emergency exit. The light source includes a plurality of LEDs each being covered by a lens. Light of the LED goes through the lens and is then illuminated on the sign to cause the sign to be visible. The lens has two opposite sides along a lengthwise direction of the housing longer than other two opposite sides along a widthwise direction of the housing, such that the light through the lens along the widthwise direction of the housing is converged in a narrower manner than the light through the lens along the lengthwise direction of the housing.
    • 紧急出口指示器包括容纳在壳体中的平坦壳体和光源。 外壳的长度大于其宽度。 壳体包括在其上设置有标志以指示紧急出口的面板。 光源包括多个LED,每个LED均被透镜覆盖。 LED的光线穿过镜头,然后在标牌上照亮,使得标志可见。 透镜沿着壳体的长度方向具有沿着壳体的宽度方向的其他两个相对侧的两个相对侧,使得沿着壳体的宽度方向穿过透镜的光以比光更窄的方式会聚 沿着壳体的长度方向穿过透镜。