Lighting devices, an optical component for a lighting device, and methods

摘要: A white-light emitting lighting device comprising one or more light sources (preferably solid state semiconductor diodes) that emit off-white during operation, wherein the includes a spectral output including at least component in first region from about 360 nm to 475 nm, second 575 and deficiency other region, an optical material for converting portion of predetermined wavelengths, such emitted by comprises white light, quantum confined nanoparticles. Also disclosed is component, fixture, cover plate methods.