While the display is still pretty small, 7-by-7 pixels, the researchers hope that within the next two to three years they could scale it up to create some of the most realistic images available.
"We are the first ones to build a display that changes with lighting," said Ramesh Raskar, a scientist at MIT who helped to develop the technology. "We've finally found a way to build the most realistic display."
The idea is similar to the technology used on stiff, cheap plastic postcards, the kind when rotated cause an image to move or make it 3-D.
Those postcards' technology works because a series of raised parallel lines create tiny lenses that project different images at either vertical or horizontal angles. The effect can make an image of a car appear like it's moving down a road or a hand appear like it's waving as you tilt the card one way and then another.
Instead of using parallel lines to create the image, the researchers used squares to create lenses that present different images at both vertical and horizontal angles simultaneously.
It's not all about the light coming out of the display though. Unlike a TV, where information only goes in one direction, the 6-D display would respond to changes in the illumination around it, like passing shadows or bright highlights.
Imagine two flowers side by side, one real, one holographic, says Raskar. Then shine a flashlight on them both.
"They would both look real," said Raskar. "But if you shine a flashlight on the hologram, light would pass right through it while the real flower would change in response to the light."
Using their new technology, the image the scientists create would actually respond to light like a real flower would.
Niciun comentariu:
Trimiteți un comentariu