An Interferometric Modulator (IMod) is a microelectromechanical device for modulating light using interference. The colors of these devices may be determined in a spatial fashion, and their inherent color shift may be compensated for using several optical compensation mechanisms. Brightness, addressing,...http://www.google.de/patents/US20020126364?utm_source=gb-gplus-sharePatent US20020126364 - Interferometric modulation of radiation