What is a TV magnifier?

TV The magnifier is a device that attempts to enlarge the smaller screen. The technology used for such devices has improved over the years, but is still not top. The term TV Magnifier can also be used for a scanner -like device that shows text from a TV page page and can help people with visual disabilities.

The idea of ​​a television enlargement reaches back to the at least fifties. At that time, the magnifier consisted simply of a large plastic screen filled with clean oil, which was placed in front of a small TV screen. The idea was that it would work just like holding a magnifying glass to a smaller object. In practice, the magnifier could distort the image and reduce brightness and contrast. It also knowledgeable also reduced the angle of observation from which you can see a television picture.

Such devices are still produced and sold to this day. However, they are not particularly strong sellers. It is largely because the availability of TVs of a variety of sizes over the yearshave changed. In the 1950s, for example, a television magnification would be used by someone who had only a 9 -inch (23 cm) screen and could not afford a 17 -inch screen (43 cm).

Today, the screen is 20 inches (50 cm), which is suitable for many users, sufficiently affordable to become a poor value. Those homeowners who want a much larger TV will usually be ready to spend enough to get a real set than to use the magnifier and cope with poor quality. Any magnifier more sophisticated than simply a magnifying glass simulation would probably be so expensive that it would be a waste of money compared to just buying larger television.

Another type of television enlargement, often known as the page enlargement, is used by some people with limited vision. It consists of a pocket device similar to a computer mouse that has built -inOukamera at the base. The device is shifted via a book or document and the image is then displayed on a much larger size on the TV screen. The data can be transmitted wirelessly or by connecting the device to the TV video input sockets. Most reviews argue that such devices work well and can increase the page approximately 20 to 25 times, although on screens larger than 32 inches (81 cm) the text may seem jagged and less easy to read.