Wednesday, May 13, 2015

Butterfly wings are the key to glare-free phone displays

Butterflies are the most awesome, charming and attractive creation of God Almighty and the scientist have recently have come to know that the butterflies have a mind blowing features in their wings. They (butterflies) have proven to be a surprising source of inspiration for technology, and that trend isn't about to slow down any time soon.
German researchers have discovered that irregular, nanoscopic structures on the glasswing butterfly's namesake transparent wings eliminate most reflections at any angle -- perfect for phones, camera lenses and most any other device where display glare is a problem. The scientists have yet to completely recreate this surface in the lab, but they foresee a future where you're not struggling to read your smartphone outdoors. And the kicker? Prototypes are already self-cleaning and water-repellant, so you wouldn't need extra coatings to keep your screens largely smudge-free. 


The effect is known from the smart phone: Sun is reflected by the display and hardly anything can be seen. In contrast to this, the glasswing butterfly hardly reflects any light in spite of its transparent wings. As a result, it is difficult for predatory birds to track the butterfly during the flight. 



Researchers of KIT under the direction of Hendrik Hölscher found that irregular nanostructures on the surface of the butterfly wing cause the low reflection. In theoretical experiments, they succeeded in reproducing the effect that opens up fascinating application options, e.g. for displays of mobile phones or laptops.

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