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Haptic technology (also kinaesthetic communication or 3D touch) [1] [2] is technology that can create an experience of touch by applying forces, vibrations, or motions to the user. [3] These technologies can be used to create virtual objects in a computer simulation , to control virtual objects, and to enhance remote control of machines and ...
The resulting resistive technology touch screen was first shown on the World's Fair at Knoxville in 1982. [20] 1982 MULTI-TOUCH CAMERA - Multi-touch technology began in 1982, when the University of Toronto's Input Research Group developed the first human-input multi-touch system, using a frosted-glass panel with a camera placed behind the glass.
A touch switch is a type of switch that only has to be touched by an object to operate. It is used in many lamps and wall switches that have a metal exterior as well as on public computer terminals. A touchscreen includes an array of touch switches on a display. A touch switch is the simplest kind of tactile sensor.
For example, these sensors have been used in the manufacturing of automobiles (brakes, clutches, door seals, gasket), battery lamination, bolted joints, fuel cells etc. Tactile imaging , as a medical imaging modality, translating the sense of touch into a digital image is based on the tactile sensors.
The technology used in newer devices allows recognition of fingers, tag, blob, raw data, and objects that are placed on the screen, allowing vision-based interaction without the use of cameras. Sensors in the individual pixels in the display register what is touching the screen.
Resistive touchscreen technology works well with almost any stylus-like object, and can also be operated with gloved fingers and bare fingers alike. In some circumstances, this is more desirable than a capacitive touchscreen, which needs a capacitive pointer, such as a bare finger (though some capacitive sensors can detect gloves and some gloves can work with all capacitive screens).
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Optical touch technology is based on image sensor technology. It functions when a finger or an object touches the surface, causing the light to scatter, the reflection of which is caught with sensors or cameras that send the data to software that dictates response to the touch, depending on the type of reflection measured.