SOLID STATE LIGHT EMITTER WITH PHOSPHORS DISPERSED IN A LIQUID OR GAS FOR PRODUCING HIGH CRI WHITE LIGHT

摘要

A solid state white light emitting device includes a semiconductor chip for producing electromagnetic energy and may additionally include a reflector forming an optical integrating cavity. Phosphors, such as semiconductor nanophosphors dispersed in a light transmissive liquid or gas material, within the chip packaging of the solid state device itself, are excitable by the energy from the chip. The device produces output light that is at least substantially white and has a color rendering index (CRI) of 75 or higher. The white light output of the device may exhibit color temperature in one of the following specific ranges along the black body curve: 2,725 ± 145° Kelvin; 3,045 ± 175° Kelvin; 3,465 ± 245° Kelvin; 3,985 ± 275° Kelvin; 4,503 ± 243° Kelvin; 5,028 ± 283° Kelvin; 5,665 ± 355° Kelvin; and 6,530 ± 510° Kelvin.