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定位手机 韩国一家通讯公司特意为老人特别是痴呆老人设计了一种定位手机。这种手机除了拥有一般手机功能外,还兼有“定位”功能。只要让老人戴上定位手机,家人便可借助卫星定位系统的帮助测出老人的方位（误差仅在十米以内）,由此就不怕老人迷失了。 智能眼镜 一般的老花镜是单焦点,焦距仅有30厘米。美国一家e一视觉公司最新研制出一种可自动变焦距的电子眼镜。它能根据戴镜人视物的远近,随时调整镜片的聚焦点,而且眼睛不易感到疲劳。如此一来,上点年纪的人就不必反复摘戴鼻上的老花镜了。这种眼镜和常规眼镜的不同点,是借用微型芯片并采用一层压电薄膜,层压电薄膜可随着电压的变化改变光的折射率,让人视线清晰自然。
Positioning mobile phone A communications company in Korea specially designed for the elderly, especially elderly dementia designed a mobile phone. In addition to this phone has a general mobile phone features, but also both “positioning” function. As long as the elderly to wear mobile phones positioning, family members can use the satellite positioning system to help measure the location of the elderly (error only within 10 meters), which is not afraid of the elderly lost. Reading glasses glasses are generally single focus, focal length is only 30 cm. The United States a e-vision company recently developed an automatic zoom electronic glasses. It can adjust the focus of the lens at any time according to the distance of the person wearing the glasses, and the eyes are not easily tired. As a result, the older people do not have to repeatedly pick the nose reading glasses. The difference between this type of glasses and conventional glasses is the use of microchip chip and a piezoelectric film, laminated film can change the refractive index of light with the change of voltage, people’s eyes clear and natural.