For now most businesses have opted for 3D television with active glasses, even though buyers are not so clear. A recent survey among American viewers of the channel C-Span showed that most of them enjoy 3D cinema experience in commercial cinemas, but feel ridiculous with his glasses at home. We should add that almost half of the world population has some form of visual impairment is corrected with glasses. The height of embarrassment is wear goggles over others. Therefore, the experts will predict a fairly short route to three-dimensional technology with glasses.

The alternatives are very clear, we must bring home the image in three dimensions, but without glasses. Until recently, Philips was leading the most likely technology for the future has against his glasses. This is the 3D WOWvx. The screens and monitors especially incorporating it, allowing the viewing of 3D images without wearing glasses. This is accomplished through a special filtering layer affixed to the front of the screen, which allows each eye sees a slightly different image. The union of the two images gives the impression of stereoscopic depth. The surprise came in June last year, when the Netherlands decided to close the section WOWvx 3D technology, abandoning the development of panels and software 3D content generator.

The gossips say that the Netherlands has abandoned the technology because it has not been able to solve the main problem is that we must remain very still so as not to lose depth perception. In any case, some firms have taken over. The American 3DFusion is working at top speed on a TV HD3D, based on technology from Philips. The screen, which is called 3DFMAX is already a working prototype, which is really not much different from the models 52 and 56-inch Philips has made in previous years, and had a resolution of 3840 x 2160 pixels, necessary FullHD display images to both eyes. The price in the U.S. market around 20,000 euros, mainly limited to the advertising market. There are other options, but quite far from a commercial future.

The latter proposal is the Hitachi 3D. His prototype, a 10-inch rear projection displays effectively three-dimensional images, thanks to a technology called “Integral Projection Photography with overload. Inside the box there are 16 projectors and a complex lens system that synchronizes the images. The vision is almost perfect from all angles, but has only a resolution of 640 x 480 points, is clearly insufficient in the era of FullHD.

Sony has already shown its proposed 3D TV glasses, but keep a card up his sleeve. A few months ago demonstrated a prototype 3D display that does not need glasses. The invention had a resolution of 96 x 128 pixels, and seemed destined for the domestic film market. Analysts say it could end up putting more three-dimensional images in all kinds of handheld devices, especially phones. Slightly more advanced is the prototype of Intel, a small size monitor that shows three-dimensional images without glasses, but he suffered from “hot spot”, in other words, the stereoscopic image is seen only in certain locations and placing on given position.

Almost all offers 3D TV without glasses require viewers to be placed in certain places, and they can not move too much or lose the sense of depth. The Fraunhofer Institute is working on technology that could solve this problem, although currently only apply to computer monitors. Its prototype includes sensors that measure the position of the eyes at all times to serve the images necessary to create three-dimensional feel. The viewer may be placed anywhere, without losing the effect depth. Of course that is perfect when it comes to a single viewer, but what occurs when two or more? This is a question to which the inventors of the MP3 still have no answers.

And if everyone bets on screen-based technologies, Japan’s bid for Holoart projection with 3D B-Vision system. It is a small box whose top is a tiny translucent glass screen located 45 degrees from the eyes of the beholder. The projectors are responsible for sending the images corresponding to each of the two eyes simultaneously projected from behind onto the screen. The user receives a projected image to each eye and your brain interprets it as a sense of depth.
