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Collimated light from a waveguide for a display backlight
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DOI：10.1364/OE.17.019714.png)
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Abstract
En 中文
We report light collimation from a point source without the space normally needed for fan-out. Rays emerge uniformly from all parts of the surface of a blunt wedge light-guide when a point source of light is placed at the thin end and the source's position determines ray direction in the manner of a lens. A lenticular array between this light-guide and a liquid crystal panel guides light from color light-emitting diodes to designated sub-pixels thereby removing the need for color filters and halving power consumption but we foresee much greater power economies and wider application. (C) 2009 Optical Society of America
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