Single panel color video projection display using reflective banded color falling-raster illumination
First Claim
1. A projection display system, comprising:
- a light source operable to produce a white light beam;
illumination optics operable to separate the white light beam into at least two beams of light each of different colors;
a panel of individually addressable elements;
a spinning reflective element operable to reflect the at least two beams of light from the illumination optics to the panel of individually addressable elements as a scanning raster, and projection optics operable to project an image received from the panel to a display surface.
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Accused Products
Abstract
A projection display system. The projection system includes a light source, illumination optics that are capable of splitting the light from the source into individual color bands, and folding mirrors. The folding mirrors operate to direct the color bands to a reflective element that has a contoured surface. The contoured surface of the reflective element causes the light to form into scanning rasters that are recombined and sent to a spatial light modulator. The spatial light modulator is typically made up of a panel of individually addressable elements. If the spatial light modulator requires polarized light, a polarizing beam splitter and quarter-wave plate are included as part of the illumination optics.
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Citations
9 Claims
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1. A projection display system, comprising:
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a light source operable to produce a white light beam;
illumination optics operable to separate the white light beam into at least two beams of light each of different colors;
a panel of individually addressable elements;
a spinning reflective element operable to reflect the at least two beams of light from the illumination optics to the panel of individually addressable elements as a scanning raster, and projection optics operable to project an image received from the panel to a display surface. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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Specification