Introduction
3D-techonolgy is the backbone of 3D TV sets. These are ready sets that can operate in 3D mode together with a set-top-box with LCD shutter glasses where the television set direct the glasses on which eye is to see the image being exhibited at that time which in turn creates a stereoscopic picture. Stereoscopy is the most recognized method through which 3D video images can be taken and delivered. In 3D, the videos are captured using cameras when stereo pairs are captured in a set up that allows for a two-view. The cameras are mounted on each side and separated by the same distance as a person's pupils.
A 3D-TV uses 3D presentation techniques to project programs which are realistic. The use of a special viewing device known as 3D display is needed to project images. 3D display is accomplished by filtering displayed offset images separately to each eye (Earl, 2010). This is accomplished when the viewer wears eyeglasses to filter the offset images to each eye or without glasses.
Development of 3D Technology
3D was first developed in the 1890s by William Friese-Greene when invented the first 3D movie and patented the technology. The images needed a stereoscope for them to produce a 3D perception. William Friese-Greene tested the 3D invention in an anaglyph that combined red and green. Louis Jules Duboscq improved the stereoscope. During The Great Exhibition that was held in 1851 witnessed the showcasing of a picture of Queen Victoria (Sperry, 2010). Later on in 1855, a stereo animation camera was invented and it was referred to as the kinematoscope. The introduction of the first anaglyph movie was in 1915 but it was until 1922 that that movie employing 3D technology was first shown in public.
Demonstration of the first 3D television using the stereoscope technology occurred in the first quarter of the 20th century and this was done by John Baird (Tucker, 2011). Later on, different types of 3D television technologies were introduced and pioneered by Baird. By 1935, the first color movie that employed 3D technology was produced at a time when world war two was still being fought. There were also common use still cameras by individuals that could produce stereoscopic 3D images. 3D TV is the brand new craze that is capturing TV producers and their productions now. 3D is the extra dimension of interesting depth introduced to an image. Contrary to the two-dimensional, the craze uses two photos and unique glasses needed by the viewer to make them feel like they are part of the image.
Types of 3D Technology
Anaglyph technology – this was the first type of 3D technology. This technology using an additive lighting setting that results in pictures produced being superimposed.
Polarized (or passive) technology –It is created by holding light allowed into the eyes instead of superimposing it. Both photos are projected onto the display through filters on opposite sides. Viewing is done by putting on 3D glasses that are polarized and that have different colors on each side, and these glasses can only enable the passage of light form coming from the exact similar polar to go through and hence allowing the eye to see two different pictures at the exact same time. This is what creates the illusion of a 3D image (Obert, 2011).
Active technology – this technology is what is being widely chosen for 3D TV. Big production companies utilize it to invent 3D TVs being released into the market. Viewers need to put in 3D glasses to view their televisions. The 3D TV is capable of projecting one particular appearance to one eye, and another towards the other eye.
Problem Areas and Solutions in 3D Technology
The problem in the development of 3D is when creating a greater portion of the field of view. When objects are too close to each other, the eyes tend to get excessively "cross-eyed". By super positioning of the angles on the left and right, then, an image that is realistic is easily achieved with help of the polarization method, provided the viewer is not too close to the screen by correctly positioning the left and right images on the screen. Through the use of digital technology has also eliminated this problem and has ensured super positioning that is accurate. This is solved by the creation of specialized active 3D TV glasses which are always in sync with the TV, and this is carried out via Bluetooth.
Negative Effects of 3D Technology
Although 3D technology has revolutionized the way television is viewed, there have been negative effects associated with this technology. Some of these effects have been highlighted by Sam Sung electronics, a leading company in 3D technology. Some of the people at risk when using this technology is; women who are pregnant, old people, children and people with serious medical conditions. Additionally, research has found that 3D televisions can cause side effects like having altered visions, feeling of nausea, twitching of the eyes, convulsions and cramps (Nicole, 2008). Insomnia or alcoholism is also a stated reason to avoid watching 3D TV. These effects are caused by the fact that in order to watch images in 3D viewers need special glasses. 3D puts a significant strain on the body of most viewers and hence Samsung advises against viewers watching it for a long period. It is advisable for one to take regular breaks. Most of these side effects like epilepsy do not necessarily need a family history; they may acquire an undiagnosed condition that can cause photosensitive epileptic seizures. People who frequently use alcohol are also advised from using the technology.. The effects extend to motion sickness, perceptual after effects, disorientation, eyestrain and a reduced postural stability (Earl, 2010). It is highly advised that users take frequent breaks to avoid these effects. Watching TV while wearing 3D glasses for a long period of time may lead to headaches or fatigues.
Conclusion
There are pros and cons to every product that is introduced to the market. Before purchasing these products or any other product, the customers should assess the importance and challenges others have found with the product. 3D invention as seen and discussed has its own pros and cons. The 3D products are very eye opening to new experiences. Apart from curiosity, this should be enough reason for anyone to purchase a 3D television set. This means that a customer will have to look at the various popular features of 3D TV in advance of your investment. Due to the experience that comes with 3D television, the invention and purchase is worthy. 3D innovation has created a revolutionized manner in which everyone can enjoy 3D films in the comfort of their homes. The significant amount of cash that viewers pay to enjoy 3D films at cinemas is avoided, which also creates convenience and relaxation. It reveals itself as a sweet deal for individuals who are not keen on going outside but want to obtain what others are obtaining. 3D television may possibly be the future of TV watching.
References:
Earl, J (2010). 3D-TV Is It For You? New York: Pearson Publishing
Nicole, M (2008, May 30). 3D television without the special glasses. The Telegraph. Retrieved
from http://www.telegraph.co.uk/technology/news/7596241/Samsung-warns-of-dangers-of-3D-television.html
Obert, S (2011). 3D television into the development trend of domestic machine manufacturers in
advance layout #D TV. Retrieved from
http://freearticlestree.org/3d-television-into-the-development-trend-of-domestic-machine-manufacturers-in-advance-layout-3d-tv/
Sperry, T (2010). Beyond 3D TV (Entrepreneur and innovation). Chicago: McGraw Hill.
Tucker, R (2011, May 11). Samsung warns of dangers of 3D television. Retrieved from
The Telegraph. Retrieved from http://www.telegraph.co.uk/technology/news/7596241/Samsung-warns-of-dangers-of-3D-television.html
