Provided herein are methods and systems for preparing signs and displays. The methods and systems include using a light engine for generating light of a plurality of colors to illuminate the body of a flexible conduit that receives light from the light engine. The conduit can be used as a sign, display,...http://www.google.de/patents/US20040130909?utm_source=gb-gplus-sharePatent US20040130909 - Methods and apparatus for illuminating environments
