PROJECTOR BASED ON TUNABLE INDIVIDUALLY-ADDRESSABLE FABRY-PEROT FILTERS

摘要

PROBLEM TO BE SOLVED: To solve the problem that the saturation of either one of colors is limited by using a color wheel in an LCD projector.

SOLUTION: 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 filter transmits radiation in a bandwidth outside the visible range of the electromagnetic spectrum. An illuminator provides light to the plurality of Fabry-Perot filters. A control system receives image data and controls the display apparatus to project an image onto an associated display surface. The control system includes a modulator which provides wavelength modulation signals to the plurality of Fabry-Perot filters to modulate a color of pixels in the image and causes selected ones of the Fabry-Perot filters to shift into the bandwidth outside the visible range to modulate the brightness of pixels in the image.

COPYRIGHT: (C)2008,JPO&INPIT