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Materials
New Mercedes Debuts Light-Control Film
by Michael McCoy
February 14, 2011
| A version of this story appeared in
Volume 89, Issue 7
The Mercedes-Benz SLK that rolled out last month features light-control technology developed by Research Frontiers. In the car’s roof, a Hitachi Chemical film is sandwiched between two panes of glass. Within the film are droplets of liquid that contain nanoparticles. At rest, the particles absorb light, but when a voltage is applied, the particles align and allow light to pass through. Research Frontiers claims to hold more than 500 patents and patent applications on light-control technology.
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