November 21, 2010 – 8:08 pm
Until 2009, the 3D-displays and movies hard hit in theaters and home theaters. Stereoscopy – that’s 3D technology is officially – was conceived as a cross between photography, movies and cult attraction “Thriller” at Disneyland. But after the show is unreal beautiful flight over the avatar Pandora, the technology has received a second chance to develop. Currently, manufacturers are changing their attitudes and beliefs, stating that the future of their screens for 3D-technology – just like they said, and on HD-TV (High Definition Television – High Definition Television) ten years ago.
In 2010, “Samsung” has sold 2 million 3D-TV, and Yuen Bo Ken (Yoon Boo-Geun), head of the company engaged in television technology, expects (hopes) the sale at more than 10 million units in 2011. LG and HTC recently released to the market model of Optimus and EVO 3D, respectively, which are high-performance smart phones with cameras and 3D-3D-displays. The company said about YouTube is that all of the videos contained on its web site will soon be compatible with hardware nVidia 3D.
Amidst all these developments make timid attempts skeptics say about this problem. Some believe that the parallax displays that do not require that the audience sat in front of them in ridiculous glasses, it is still too primitive and cumbersome. Others worry that manufacturers of devices do not tend to work together with content – games, movies, newspapers and magazines – to increase demand for three-dimensional technology. And finally, there is still doubt that we will ever experience a ‘need’ in 3D the same as “need”, for example, as a function of text messages, or you have a GPS in our phones – it’s just overkill. Critics argue that such features as text messaging and GPS have become a key way of our communication and actions; this is not true of 3D – there are no prerequisites to this technology has become as much a part of our lives.
But what we know about the effects of stereoscopy on us – our bodies and souls? What makes the 3D technology with our reason? We can, and enjoy a flight on alien animals on Pandora, when we do it sitting in a comfortable armchair, but there is the slightest chance that this technology may harm us?
The principle of 3D-technologies: fast and cheap
At the heart of stereoscopy is a simple trick that causes the effect of reproducibility – and this is what our eyes do every day. Back in 1838 Charles Uitstoun (Charles Wheatstone), a scientist from King’s College (King’s College) in London, described an interesting visual effect when the two images, located at a slight tilt to one another, looking separately by one eye – for one, and another – to another picture, the brain receives a signal of a single three-dimensional image.
So, in order to reconstruct the 3D-image on a TV screen, we need a way to get on one screen, different images for each eye.
First, it is carried out with the famous blue anaglyph red glasses, in which different lens filter slightly different image to the eye, and then the 3D-image. While this method often leads to suppression of other important spectral colors, and nobody likes the unusual appearance of such points.
That’s why now, many manufacturers turned their attention to the parallax barrier system.
Similar to the principle of action to view the image through the fence with one or the other eye, parallax barrier covers the screen with thousands of narrow slots and shows one of the two tilted images, depending on the angle of looking at the screen location of the eye. Angle of the left eye can get a picture, a little different from that seen by the right eye, thanks to the brain, it received signals from the two eyes are combined into three-dimensional image.
In any of these solutions are as follows: for each eye is shown separate two-dimensional image, to trick the brain and make him think that he sees a single image with three-dimensional depth.
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