Overviewoptical touch screen
Optical touch technology is a kind of different from the existing infrared, surface acoustic wave touch technology such as resistors, capacitors, new technology, optical sensors for detailed action quick response, to make your application more light, smooth, accurate!Creative multi-touch technology application is complemented to optical touch technology! 
Is simple, accurate and quick response.The bottleneck of CCD optical touch technology to break the original touch technology, from the aspects of accuracy, response speed and life

 


The principle of CCD optical touch screen
There are greatly improved.Installed in the top left and right Angle of two CCD cameras can be accurately detected more than your finger position, not only can make your click and drag, also is free to rotate and zoom pictures, these operations depend on the number of your fingers and per unit area.You can also by gently touch screen, enjoy controlling movement, and a 3 d object with virtual animals of the screen the pleasure of zero distance contact.
 
Second, the technical principle
Installed in the top left corner of the top of the CCD camera, the light that is emitted by leds around after reflection reflection, into the top right corner of the CCD camera. Similarly, in the top right corner of the CCD camera light into the left side of the CCD camera. With light to form a light in the area of the touch net, through the space between the multiple reflections of light within 1 mm.When touch point, the point of the shoot the light and receive an Angle of light, at the same time on both ends of the CCD camera and two pairs of light and composed of straight line between two cameras can form two angles, this point coordinate is the controller input accurately, realize the touch response.When using multi-touch, principle, too! 
Third, technical characteristics
(1) support multi-touch and double writing; 
(2) is suitable for liquid crystal, plasma, LED and other displays, projector (before the shoot, display), size from 15 to 250 inches can support; 
(3) have more screen interactive function, a computer can be connected at most four touch-screen;
(4) no driver, touch screen and can be used directly after the PC host connection, need not install driver, still can be normal use after replacement of different computer.