METHOD OF PROJECTING IMAGE WITH TUNABLE INDIVIDUALLY-ADDRESSABLE FABRY-PEROT FILTERS
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Accused Products
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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Citations
22 Claims
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1. (canceled)
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3-6. -6. (canceled)
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9. (canceled)
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11. (canceled)
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17. A method of projecting an image comprising:
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receiving image data for an image to be projected; illuminating 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; controlling the tunable Fabry-Perot filters to project the image onto an associated display surface including providing wavelength modulation signals to the plurality of Fabry-Perot filters to modulate a color of pixels in the image and causing 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 in accordance with the image data. - View Dependent Claims (2, 7, 8, 10, 12, 13, 14, 15, 16, 18, 19, 20, 21)
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22. A projection method comprising:
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providing an image source which supplies image data for an image to be projected; providing an array of individually tunable Fabry-Perot filters mounted on a common transparent substrate, each of the filters being configured for transmitting visible light therethrough; illuminating the plurality of Fabry-Perot filters with light; controlling projection of an image onto an associated display surface, the controlling comprising providing wavelength modulation signals to the array of Fabry-Perot filters to modulate a color of pixels in the image; and diverging the image with a lens system which includes an array of microlenses intermediate the array of filters and the associated display surface.
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Specification