Flexible film senses nearby movements -- featured in blink-tracking glasses

I'm not touching you! When another person's finger hovers over your skin, you may get the sense that they're touching you, feeling not necessarily contact, but their proximity. Similarly, researchers have designed a soft, flexible film that senses the presence of nearby objects without physically touching them. The study features the new sensor technology to detect eyelash proximity in blink-tracking glasses.

Noncontact sensors can identify or measure an object without directly touching it. Examples of these devices include infrared thermometers and vehicle proximity notification systems. One type of noncontact sensor relies on static electricity to detect closeness and small motions, and has the potential to enhance smart devices, such as allowing phone screens to recognize more finger gestures.

As objects approached the FEP surface, their inherent static charge caused an electrical current to flow in the sensor, thereby"feeling" the object without physical contact. The resulting clear and flexible sensor detected objects -- made of glass, rubber, aluminum and paper -- that were nearly touching it but not quite, from 2 to 20 millimeters away. The sensor held its charge for over 3,000 different approach-withdraw cycles over almost two hours.

The authors acknowledge funding from Natural Science Foundation of China Grants, Shanghai Pilot Program for Basic Research, the"Chenguang Program" supported by the Shanghai Education Development Foundation and Shanghai Municipal Education Commission, National Key Research and Development Program of China, Natural Science Foundation of Shanghai, and the Open Project of State Key Laboratory of Chemical Engineering.

Source: Entertainment Trends (entertainmenttrends.net)

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