Projector based on tunable individually-addressable Fabry-Perot filters
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United States of America Patent
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Dec 8, 2009
Grant Date -
Oct 18, 2007
app pub date -
Apr 18, 2006
filing date -
Apr 18, 2006
priority date (Note) -
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status (Latency Note)
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Abstract
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.
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