Finnish Technology: Computer Screen Made From Fog

Tracy Staedter in Discovery News:

Fogscreen_zoomA new interactive computer touch screen uses fog as a projection medium instead of glass or plastic.

Such an immersive projection technology could have applications that range from walk-through advertisements to hygienic touch screens in operating rooms, where handling a keyboard or mouse could undermine sanitary conditions.

“The interactive screen is quite new and has not been used anywhere,” said Ismo Rakkolainen, chief technology officer at Seinäjoki, Finland-based Fogscreen, who together with Karri Palovuori of Tampere University of Technology developed the technology.

According to Rakkolainen, other screens made from fog have been developed, but remain non-interactive because the large water vapor particles they employ would create a damp experience for the user.

But Rakkolainen’s Fogscreen is a ceiling-mounted device that sprays a fine mist of tap water particles so small they feel dry to the touch.

The fog is contained to a rectangular shape because it is sandwiched between two layers of flowing air that keep it from dispersing.

More here.