Patent ID: 8981339
Filing Date: 2015-03-17
Classification: C09K,H01L,H05B,Y02B

Abstract:
1. A white-light emitting lighting device comprising an off-white light emitting light source, wherein the off-white light includes a spectral output including a first spectral component in the blue spectral region from about 400 nm to about 475 nm, a second spectral component in the green spectral region from about 500 nm to about 550 nm, a third spectral component in the yellow spectral region from 550 nm to 575 nm, and a first deficiency in the red spectral region, and an optical component that is positioned to receive at least a portion of the off-white light generated by light source, the optical component comprising an optical material for converting at least a portion of the off- white light to one or more predetermined wavelengths, at least one of which has a wavelength in the red spectral region, such that white light is emitted by the lighting device, wherein the optical material comprises quantum confined semiconductor nanoparticles.