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New tech lets you watch 3D movies without the funky glasses | Fox News

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A new prototype display could enable people to watch 3D movies from any seat in the theater, without having to wear 3D glasses. (Christine Daniloff/MIT)

Someday, moviegoers may be able to watch 3D films from any seat in a theater without having to wear 3D glasses, thanks to a new kind of movie screen.

The new technology, named Cinema 3D, overcomes some of the barriers to implementing glasses-free 3D viewing on a larger scale, but it’s not commercially viable yet, the researchers said when describing their findings.

Although 3D movies can offer unique perspectives and experiences, one major drawback is the cumbersome eyewear that moviegoers typically have to wear. Although glasses-free 3D strategies already exist, these technologies currently cannot be scaled up to movie theaters. [10 Technologies That Will Transform Your Life]

For example, glasses-free 3D methods for TV sets often use a series of slits known as a parallax barrier that is placed in front of the screen. These slits allow each eye to see a different set of pixels, creating the illusion of depth.

However, for parallax barriers to work, they must be placed at a set distance from viewers. This makes parallax barriers difficult to implement in larger spaces such as theaters, where people can sit at a variety of distances and angles from the screen.

In addition, glasses-free 3D displays have to account for the different positions from which people are watching. This means that they have to divide up the limited number of pixels they project so that each viewer sees an image from wherever he or she is located, the researchers said.

“Existing approaches to glasses-free 3D require screens whose resolution requirements are so enormous that they are completely impractical,” study co-author Wojciech Matusik, an associate professor of electrical engineering and computer science at MIT, said in a statement.

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