PROJECTION SYSTEM COMPRISING A SOLID STATE LIGHT SOURCE AND A LUMINSECENT MATERIAL
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United States of America Patent
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Issued Date -
May 2, 2013
app pub date -
Jun 27, 2011
filing date -
Jul 8, 2010
priority date (Note) -
Abandoned
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Abstract
The invention provides a projection system (100) comprising a projection light source (110) and a color wheel (120), wherein the projection light source (110) comprises a solid state light source (115), configured to generate a solid state light source beam (111) having a solid state light source beam cross-section. Upstream of the color wheel (120) beam shaping optics (161) are arranged, configured to shape the solid state light source beam cross-section into a rectangular cross-section. The color wheel (120) comprises regions (125) of different luminescent material (170), excitable by the solid state light source beam (111) and configured to generate, upon excitation by the solid state light source beam (111), visible light (116) for projection on an image panel (290). The regions (125) are arranged at different distances from an axis of rotation (122) of the color wheel (120).
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