Patent ID: 7481562
Filing Date: 2009-01-27
Classification: G02B,G02F

Abstract:
1. A device for providing illuminating light, said device comprising: a light source that generates original light; a light panel optically coupled to said light source so that said light panel produces said illuminating light, said illuminating light being derived from said original light; and a wavelength-shifting region optically coupled to said light source, said wavelength-shifting region including at least one type of quantum dots to at least convert some of said original light to converted light, said converted light being a component of said illuminating light, wherein said light panel includes a microstructured lens feature located on a bottom surface of said light panel, said wavelength-shifting region being located within said microstructured lens feature, wherein said microstructured lens feature includes a plurality of protrusions having V-shaped cross-sectional profiles, said wavelength-shifting region being located within the protrusions of said microstructured lens feature.