How does 3D TV Work?

How 3D TV works is a fascinating question. There are several techniques and methods to present moving things in a three dimensional or 3D field. Some of them are multi view capture, stereoscopic capture, two dimensions plus the depth. When such techniques are used on a 3D display, a normal television show generally shown in two dimensions on regular television sets can be made to project itself in a realistic field of three dimensions with success. This is the basic definition of the technology called 3D TV. So how 3D TV works?

The earliest method used for showing viewers the fun that is 3D TV was anaglyphic 3D. This method included the use of red and blue glasses. These glasses weighed a bit on the heavier side and all that weight on the nose often made the viewers a bit nauseous. Also this technique had another restriction that the studio or location were the TV show was being shot had to have special colour filters. These filters and the accompanying technological equipment cost quite a fortune. Also the technological expertise and the effort required to set up this equipment was a lot. Finally it was concluded that the time, effort and money being invested in the complete process was not worth the outcome that was being produced. The market as well as the audience rejected the technology and it has become out dated now, as far as mainstream 3D TV is concerned.

The technology for how to use, works and present 3D TV is the stereoscopic option which requires special glasses called shutter glasses. These glasses have a very basic working mechanism ñ they shut off the viewer’s left eye and then the right eye alternately for a fixed amount of time. The TV is programmed to produce separate images directed towards each individual eye. When the brain finally processes the images that enter both the eyes in an alternate manner, it creates a 3D image in the mind of the viewer. This method requires a great deal of synchronization between the 3D TV set [how it works] and the shutter glasses that the viewer uses. This synchronization is achieved using infra red technology or by matching the radio frequencies of both the devices. But there is one slight problem with this technology and scientists all over the world have been trying to improve this aspect. Since the eyes of the viewer get closed and opened very quickly, sometimes lesser light can enter the eyes and that makes the images seem a little darker.