"Nano-imprint technology, a technique in which microscopic indentations are made on an object's surface, is changing the nature of various products, including TV screens, semiconductors and tissue cultures. One application already being used is in making so-called moth-eye film, a transparent film developed by Dai Nippon Printing that reflects almost no light. This film is modeled after a moth's eyes, which are known for reflecting little to no light, allowing the insect to better hide from predators. This is achieved by minute bumps that are around 200 nanometers, 200 billionths of a meter, in diameter. Nano-imprint technology helped researchers create such surfaces on film."
Via Miguel Prazeres