TV Could Be 3D As Early As 2010
The 3D experience that many flock to the theatres for could be available in home TV broadcasting as early as 2010. TV manufacturers such as Mitsubishi, Sony, and Panasonic are investing interest in 3D compatible TV sets that will allow the viewer to experience a visually dynamic effect much the same as 3D films.
To understand why, here’s a short primer on how our vision works. Our eyes are about 3 inches apart, which means each eye sees a slightly different perspective of the same scene. The brain takes images from both eyes, fuses them together and uses the difference between the images to calculate distance, creating a sense of depth.
Getting the 3-D effect at home involves tricking the brain into doing something similar with the images that it gets from a TV set. But that’s not a trivial problem: TV makers have to figure out a way to precisely show a set of slightly different images to each of your eyes.
Technologies such as colour filter glasses, battery powered shutter glasses, and polarized glasses (similar to sunglasses) are all relevant to the expansion of 3D for TV.
Those who'd prefer not to wear any form of glasses for the viewing experience have another option. Lenticules (cylindrical plastic lenses) can be placed in front of an LCD screen. One of the viewer's eyes sees a portion of the LCD that is off-center while the other eye sees what is directly under the lens. It is the combination of these two images within the brain that creates 3D depth perception.