LIGHT INJECTION SYSTEM AND METHOD FOR UNIFORM LUMINOSITY OF WAVEGUIDE-BASED DISPLAYS
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United States of America Patent
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Issued Date -
Jan 20, 2011
app pub date -
Dec 3, 2008
filing date -
Dec 3, 2007
priority date (Note) -
Abandoned
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Abstract
The attenuation of light per unit length in a waveguide as a result of active pixels (i.e., open pixels) may be corrected or mitigated by injecting apodized light into the waveguide. A light injection system and method is provided to enhance the luminous uniformity of the active pixels in a waveguide-based display. Embodiments of the present invention include a slab waveguide having a first edge and a second edge that intersect at a vertex, a first light source disposed along the first edge, and a second light source disposed along the second edge. The first light source, or the second light source, or both, comprises an apodized light source.
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