Display Data on Thin Air

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1. INTRODUCTION
In this, two new techniques represent the latest approach to display technology; doing away with the screen. While unlikely to replace the desktop computer monitor, these thin air displays could eventually be put to use in product showrooms, museums, corporate conference rooms, trade fairs, theme parks, and advertisements. We know that displaying an image using conventional projectors require a non transparent medium such as white screens, walls etc and air cannot be used since it is transparent. But this describes two display technologies that do not require a non transparent medium to project images and videos to it. The air can be used as the projecting screen. Fog screen technology and Helio display technology are the above said two technologies.


FOG SCREEN DISPLAY TECHNOLOGY
The Fog Screen is a new invention which makes objects seems to appear and move in thin air that allows you to project images and video onto a screen of "dry" fog, creating the illusion that the images are floating in midair. The Fog Screen is a suspendible device that creates a thin, smooth fog surface almost instantly when it is switched on. It can be used for image projection just like a conventional screen. This technology uses blending of fog, digital technology, interactivity and a great deal of innovation. Virtually dry fog is created using ordinary tap water with no chemicals. Viewers can stand inside the image and remain perfectly dry! It is the World's first walk through projection screen.



About Inventers
Inspired by science fiction movies such as Star Wars, two Finnish virtual reality researchers ISMO RAKKOLAINEN & Prof. KAARI PALOVUORI of
Finland's Tampere University of Technology created the Fog Screen to recreate some of the effects from these movies in real life.



Components Required
It has both hardware as well as software parts. The hardware parts consist of a prototype device, video projector, a small water tank and IR sensors.
The projecting surface is generated by using a non turbulent flow of air and fog is created by using the water droplets which is trapped between the layers so as to get the screen.
The components required are Projection surface A laminar non turbulent flow of air A thin fog screen injected into & inside the laminar flow of air A power outlet standard video source