Optical Touch Technology 1
There are many touch screens out there using many alternative styles of technology, however few people understand something concerning optical touch technology. Most touch screens tend to make contact with us by using a lot of widespread technology like projected capacitance, infrared, surface undulation and resistive technologies – however that’s to not say that normal people would understand the distinction. In fact some people could have made contact with optical touch screens while not realizing it.
How It Works
Screens that have optical touch technology use cameras to find and verify the placement of touches. 2 or a lot of cameras, typically four, are mounted on the surface of the glass or within the edge. The mountings are commonly at the four corners of the screen and adjusted toward the middle. These small cameras emit infrared that is displayed along a plane across the surface of the screen glass.
Once a finger or object touches the screen, it breaks the infrared pattern. The camera works in cycle with computer circuit boards and software to see the precise locations of touches on the screen. These are then recognized as information inputs and directions.
When using optical touch technology, the term ‘touch’ could be a touch deceptive; the screen pinpoints touch location once the infrared beam is interrupted. This implies you won’t really need to touch the screen to input directions, although the space is so little you’ll have a tough time doing it by design. (more…)
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