Patent ID: 8764210

Claim:
A light emitting apparatus comprising: a light emitting device to emit light at a wavelength; a first phosphor to emit light with a first spectral characteristic when irradiated by the light at the wavelength; a second phosphor to emit light with a second spectral characteristic when irradiated by the light at the wavelength; and an optical coupling mechanism configured to: optically couple the light emitting device to the first phosphor and to optically decouple the light emitting device from the second phosphor in a first operating mode; and optically couple the light emitting device to the second phosphor in a second operating mode; wherein the light emitting apparatus is configured to radiate the light emitted from the first phosphor in the first operating mode, and the light emitted from the second phosphor in the second operating mode, wherein the light emitting device is fixedly situated at a first position, the first phosphor is fixedly situated at a second position, and the second phosphor is fixedly situated at a third position; and wherein the first, second, and third positions are three different positions that are fixed with respect to each other in both the first operating mode and the second operating mode.