A projection system includes a display apparatus comprising a plurality of tunable Fabry-Perot filters, each of the filters being configured for shifting between a state in which the filter transmits radiation in a bandwidth in the visible range of the electromagnetic spectrum and a state in which the...http://www.google.de/patents/US7628493?utm_source=gb-gplus-sharePatent US7628493 - Projector based on tunable individually-addressable Fabry-Perot filters
