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With the dawn of each new age there are new technological developments which come to light, making previous devices obsolete. Past advancements saw MP3 players annihilate personal cassette players and portable CD players whilst DVD players saw VHS sets abandoned across the world.

The latest development in the tech world has to be that of 3D viewing. Originally debuted on the big screen of cinema, this system has slowly been seeping its way into our homes through 3D television sets and digital channels. Unfortunately, the drawback of this technology has been the need to wear what many deem to be ‘unfashionable’ glasses – or at least it was until now.

3D without the glasses

Numerous attempts have been made to convert the 3D format into something which can be used without the addition of facial accessories. Originally the filter technology used in the glasses (a parallax barrier) was fitted to the front of television sets and other displays but this resulted in inconsistent viewing. Whilst those sat squarely in front of the TV may have benefitted from the extra dimension, those sat outside this ‘optimum’ range were left with a blurred or unclear picture.

The latest solution proposed for the 3D problem has sought to address this issue – using a new system to deliver three-dimensional images without the need for glasses or uneven viewing. The new “auto-stereoscopic” TV sets move different screen elements forward and backward to create depth without the need to wear a pair of special spectacles.

Whilst the technology is still in its infancy – having only been recently exhibited to the public world via the Consumer Electronics Fair (CES) – it is expected to become hugely popular if carried off correctly. At present, some slight interference is experienced with the image which is unable to be viewed in full HD (1080p) format, being relegated to little over 720p.

How does 3D technology work?

Whilst a concept we are now familiar with, it was not until recently that 3D TV really became a reality. The release of films such as Avatar has been credited with prompting the shift in public opinion and has helped 3D TV achieve its current reputation.

True 3D footage is filmed using two cameras: one for the left eye and one for the right eye. These capture footage of the same scene but from slightly different angles and are placed together during screening, with the image for one eye being immediately followed by one for the other eye. The glasses which are traditionally worn filter these images and deliver them to the correct eye.

Steven Harris is a regular blogger from Hartlepool. He offers information on the latest tvs and gadgets to advise consumers on the best products available. He also writes regular reviews on consumer electronics.