Design of highly efficient phosphor-converted white light-emitting diodes with color rendering indices (R - R) ≥ 95 for artificial lighting.

Phosphor-converted white light-emitting diodes (pc-WLEDs) are excellent energy-efficient light sources for artificial lighting applications. One goal of artificial lighting is to make objects/images look natural - as they look under the sunlight. The ability of a light source to accurately render the natural color of an object is gauged by the parameter - color rendering index (CRI).