World’s First Updatable Holographic Display

Researchers at the University of Arizona have broken a technological barrier by making three-dimensional holographic displays that can be erased and rewritten in minutes. The holographic displays – which are viewed without special eyewear – are the first updatable three-dimensional displays with memory ever to be developed, making them ideal tools for medical, industrial and military applications that require “situational awareness.”

The device basically consists of a special plastic film sandwiched between two pieces of glass, each coated with a transparent electrode. The images are “written” into the light-sensitive plastic, called a photorefractive polymer, using laser beams and an externally applied electric field. The scientists take pictures of an object or scene from many two-dimensional perspectives as they scan their object, and the holographic display assembles the two-dimensional perspectives into a three-dimensional picture.

Via Trendhunter

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