Nano Bugle

A window into applied science supported by INL

Perfectly Non-Reflecting Coating

Research scientists at the Fraunhofer Institute for Mechanics of Materials IWM in Freiburg have developed a non-reflective transparent polymer. This new nanocoating ensures a perfectly non-reflecting view and can be used in applications such as displays and visors.

Whereas conventional methods apply the anti-reflective coating in a separate step after production, the Fraunhofer scientists have found a way of reducing light reflection during actual manufacture of the part or component.

The viscose polymer is injected into a mold, coated with the optically effective nanostructure that is then transferred directly to the component.which reproduces the optically effective surface structure.

This principle is based in the perfectly non-reflecting moth’s eye: they have tiny protuberances smaller than the wavelength of light. This nanostructure creates a gentle transition between the refractive indices of the air and the cornea. As a result, the reflection of light is reduced and the moth remains undetected.

The hybrid coating has further advantages: the components are scratch-proof and easy to clean.

For more information, click here.


May 27, 2010 - Posted by | Uncategorized

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