The 3-D effect of the “EyeFly 3D” screen protectors, made by Nanoveu, is based on lenticular lens technology, which was invented over a century ago and is used to make posters and postcards that move as the viewer changes his or her perspective. The lenses send separate images to the left and right eye to create the illusion of depth.
What makes the EyeFly unique is its manufacturing process. In particular, say its inventors, a patent-pending nanofabrication step allows for the application of “perfectly shaped lenses,” each small enough to sit above a single pixel image on the highest-resolution LCD displays on the market, and focus it toward either the right or left eye.
“We have taken an age-old lenticular lens technology and improved it with nanotechnology,” says Loke Yee Chong, a researcher at the Singaporean government’s Agency for Science, Technology and Research (A*STAR). Loke helped lead the development of the fabrication technique.