As 3D TVs slowly but surely pick up pace, goggles for 3D TV cannot be far behind. They are an indispensible part of the whole 3D viewing experience.
In layman’s terms a 3D TV allows a viewer to watch images in three dimensions. In effect they give a certain ‘depth’ to the images, giving the illusion of the third dimension. This is achieved by allowing the viewer to see images from two different perspectives at the same time, producing the 3D effect.
The 3D goggles are an essential part of this technology. Although there are glass free 3D TVs, the other version is far more popular. The glasses here work with the screen to give the illusion of depth. It manipulates the perception of images from our right and left eye to create the required effect. There are both active and passive 3D TV goggles.
Active 3D goggles: These goggles are called active because they are battery powered. These shutter glasses have a built-in wireless signal receiver. In its active mode the lenses shutter goes on and off alternatively between the left and right eye. This sequence is controlled by a Bluetooth transmitter.
Passive 3D goggles: These are still the most commonly used 3D goggles. Most of us have worn them at some time or the other to watch 3D films. In this kind of setup polarized filters are used on both the goggles and the screen to split the left and right image, creating the 3D effect.
With new technology 3D TV has come far. 3D glasses have also kept pace to bring alive the TV viewing experience.