The glass shutter is that the blade fixes the window structure on the frame of equal rank from some pieces of glass with identical Angle.

玻璃百叶窗是由若干块玻璃叶片以相同的角度，平行地固定在框架上的窗结构。

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The double-faced hollow toughened glass provides good sound insulation, heat insulation and safety. Installing power-operated or magnetic control shutter will save you the trouble of curtain cleaning.

配置中空双面钢化玻璃，隔音、隔热、安全性能佳。玻璃内可配置电动或者磁控百叶帘，可免除装普通窗帘清洁的烦恼。

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Here, the 808 PureView delivers again with an autofocus prime lens made by Carl Zeiss that features five aspherical glass elements (in one group) and a mechanical shutter.

ENGADGET: Nokia 808 PureView review: the future of mobile imaging, wrapped in the smartphone past