A car speedometer cover with two anti-reflective circular surface areas. (© Fraunhofer IWM)
Research scientists at the Fraunhofer Institute for Mechanics of Materials IWM in Freiburg have developed a nanocoating technology that guarantees a perfectly non-reflective view on displays and through eyeglasses. Through adapting the moths’ (yes we are talking about the insect!) camouflage trait that they possess in their eyes – tiny protuberances smaller than the wavelength of light form a periodic structure on the surface – the scientist were able to develop a way on how to actually manufacture eyeglasses, cell phone displays, fitting or panel covers, transparent surfaces that doesn’t reflect light.
“We have modified conventional injection molding in such a way that the desired nanostructure is imparted to the surface during the process,”
“We use this to coat the molding tools. When the viscous polymer melt is injected into the mold, the nanostructures are transferred directly to the component.” “Normally the component would have to undergo an additional separate process to apply the anti-reflex coating,” Dr. Frank Burmeister, project manager at the IWM.
These anti-reflex coatings are also wipe-resistant and scratch-proof. These notable features makes the nanocoating more efficient and long-lasting.
The scientists are also working with industrial partners to develop stunning and durable components which can be applied for the auto industry.
Source: Fraunhofer
