Conditions Which Prevent The Perception of 3D
Studies report that anywhere between 2 – 12% of the population are unable to experience the effects of 3D television. This is the result of one of various conditions predominantly including strabismus, amblyopia and optic nerve hypoplasia. Those who are physiologically unable to witness the effects of 3D are also referred to as being stereo-blind. This is the result of the eyes not being able to focus or align correctly. Looking to strabismus, and a variety of derogatory terms, the eyes do not fix upon locations at the expected angles, this in turn prevents the interpretation of the 3D effect implemented as it nullifies the key technology which causes the effect. In order for 3D to work the eyes need to work together as a precisely coordinated team, processing the pictures that are displayed to the left and right eye.
What Does This Mean?
So far manufacturers have been silent about stereo blindness, however, with such a large percentage of the population being isolated from the potential market questions must surely have been raised. In the meantime you be be reassured that all TV manufacturers look to stick to the rule of having a backwards button to turn off the 3D and revert back to 2D. However, for the 3d films and with the advent of the first glasses free 3D TV being released on the consumer market then surely questions will be asked and measures taken to prevent the exclusion of such a large group of individuals.
If you think you may have any of the conditions which cause stereo-blindness then we recommend that you go to your local opticians where a routine examination will usually detect any disorders you may have. Also for more information on strabismus a look on this site to get more information http://www.strabismus.org/
Active Shutter 3D TV Glasses Explained
Active shutter glasses have liquid crystal lenses which open and close at around 100 times a second. This is synchronised with the 3D projection which show images meant either for the left eye or the right eye. So when an image for the left eye is displayed the right lens will close and vice versa. This is what creates the 3D appearance – tricking the brain. With the speed of the shutters operating at over 100 times or so a second the user does not notice any of the opening and closing of the lenses.
Active Shutter glasses tend to be somewhat expensive and can add significantly to the cost of a 3D TV set, especially if you need to buy in large quantities so as the whole family can enjoy the viewing experience together. For this reason, some prefer to use passive glasses, which are much cheaper, don’t require batteries and are less restrictive and often more comfortable. The future looks set to hold the widespread arrival of autostereoscopic (glasses free) viewing and with this we confidently predict that 3D TV will finally make its way into the homes of all of us.
What is an Ethernet Cable
The Ethernet cable (aka Network cable) is the cable you use to connect your TV up to the internet or local computer network. It plugs into your hub or router. There’s a mass of technical information on this but really the above is all you need to know. They are cheap and readily available online at various length, so you can find one suitable for any setting just about.