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US 2009/0021821 A1Published application
Multi-Primary Color Projection Display
AssigneeGenoa Color Technologies Ltd.
InventorShmuel Roth
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Abstract
Embodiments of the present invention include a method, apparatus and/or system of producing a color image using four or more primary colors. The apparatus, according to some demonstrative embodiments of the invention, may include an optical arrangement to selectively split polychromatic light into at least four primary-color light beams, and to direct the at least four primary-color light beams towards at least four reflective spatial light modulators, respectively. Other embodiments are described and claimed.
Claims19
A display device of producing a color image using four or more primary colors, the device comprising:
- a first color selective rotator to selectively rotate the polarization of polychromatic light, and provide a first light beam including light of first and second spectral ranges in a first polarization state, and light of third and fourth spectral ranges in a second polarization state, said first, second, third and fourth spectral ranges corresponding to first, second third and fourth primary colors, respectively;
- a beam splitter to split said first light beam into a second light beam including light of said first and second spectral ranges in said first polarization state, and a third light beam including light of said third and fourth spectral ranges in said second polarization state;
- a second color selective rotator to selectively rotate the polarization of said second light beam to include light of said first spectral range in said second polarization state, and light of said second spectral range in said first polarization state;
- first and second reflective spatial light modulator panels including first and second arrays of pixel elements, respectively;
- a first beam divider/combiner to direct the light of said first spectral range in said second polarization state towards said first reflective panel, and the light of said second spectral range in said first polarization state towards said second reflective panel;
- a third color selective rotator to selectively rotate the polarization of said third light beam to include light of said third spectral range in said first polarization state, and light of said fourth spectral range in said second polarization state;
- third and fourth reflective spatial light modulator panels including third and fourth arrays of pixel elements, respectively;
- and
- a second beam divider/combiner to direct the light of said third spectral range in said first polarization state towards said third reflective panel, and the light of said fourth spectral range in said second polarization state towards said fourth reflective panel.
6 more elements
A method of producing a color image using four or more primary colors comprising:
- selectively rotating the polarization of polychromatic light to provide a first light beam including light of first and second spectral ranges in a first polarization state, and light of third and fourth spectral ranges in a second polarization state, said first, second, third and fourth spectral ranges corresponding to first, second third and fourth primary colors, respectively;
- splitting said first light beam into a second light beam including the light of said first and second spectral ranges in said first polarization state, and a third light beam including the light of said third and fourth spectral ranges in said second polarization state;
- selectively rotating the polarization of said second light beam to include light of said first spectral range in said second polarization state, and light of said second spectral range in said first polarization state;
- directing the light of said first spectral range in said second polarization state towards a first reflective panel, and the light of said second spectral range in said first polarization towards a second reflective panel;
- selectively rotating the polarization of said third light beam to include light of said third spectral range in said first polarization state, and light of said fourth spectral range in said second polarization state;
- and
- directing the light of said third spectral range in said first polarization state towards a third reflective panel, and the light of said fourth spectral range in said second polarization state towards a fourth reflective panel.
4 more elements
Dependencies are inferred from the claim text.