3D TVs take scenic films, sports, and action movies to a whole new level. There is however, more to a 3D TV than just being able to display images in three dimensions.
The televisions with this kind of technology are a step up from traditional tvs. Up until recently, 3D videos could only be enjoyed in movie theaters where you are asked to pay as much as twice the price of a regular ticket.
Now, this technology is being brought into our homes, which is great because you can experience this technology for a much more affordable price and many networks and film companies are starting to develop shows and movies featuring 3D.
The History of 3D Images
3D imagery goes as far back as 1838 when Sir Charles Wheatstone invented the first stereoscope. When two pictures are viewed stereoscopically, the brain mixes them together, producing a 3D image.
The first patent for a 3D film process was filed in the late 1890s by William Friese-Greene, a British film pioneer but it wasn’t until 1922 when the first 3D movie that was released to the public (called “The Power of Love”) was screened.
Six years later, the a new version of 3D television (stereoscopic) was demonstrated for the first time by John Baird from London.
Later in 1935, the first 3D color movie was produced. With the technology being around for this long, it is a wonder why its prominence only started recently. But given the advances in technology, 3D imagery has had to keep up with it which has proved to be quite troublesome.
How Does It Work?
Images on a screen are basically made of light. The reason why things look flat on a TV is because of the way that light is projected towards your eyes.
The way 3D images work is by showing each of your eyes the same image but in two separate locations. Because of this, your brain interprets the image as something with depth as opposed to something flat.
This is the same reason for experiencing eye strain from watching too many 3D movies in one sitting or for watching one for too long.
You may think that you are focusing on just one object but the fact that you are looking at two things can be a lot of work for your eye muscles.
Modern 3D TVs
Most modern 3D TVs make use of an active shutter 3D system or a polarized 3D system or Anaglyph 3D, both of which are passive methods. These techniques require the use of specially made glasses.
Making use of Autostereoscopy or Auto 3D allows the viewer to see 3D images without using glasses which is gaining a lot of interest from consumers. Smaller devices, like the Nintendo 3DS uses this method to display images.
It is no secret that 3D TVs can open the door to more possibilities for home entertainment. By knowing exactly what these are, the consumer should have no problem figuring out if it’s worth getting one of these TV sets or not.
But as with all the other advances in television, what we think is foreign and new will soon become mainstream and it probably won’t be long until most homes have 3D TVs.