Optical based touch screen for multimedia (P-0041) (MFN 3528)

Abstract

To improve the visualization of information via a multimedia (MM) projector, a two-pronged strategy is being adopted. One, make the screen touch sensitive to eliminate the use of the pointing device. Two, use a suitable mirror to bring the MM light from the back rather than front to avoid the demonstrator’s blockade of the view. The solution could be a semitransparent screen that can allow for basic interactive functions of a touch screen, such as resizing/handling of windows, clicks etc. The touch-screen technology is user friendly and easy to operate. The MM projector is to be placed behind the screen at a minimum possible distance using a suitable spherical mirror to diverge the image on the screen. It provides easy and friendly environment clear visualization.