| 摘要 |
A method and apparatus for generating different spectral compositions of light is disclosed. The method comprises generating light at a wavelength, using an LED in some embodiments, and optically coupling the generated light to a first phosphor in a first operating mode and optically coupling the generated light to a second phosphor in a second operating mode. Several different embodiments of optically coupling the phosphors to the light source are disclosed. The first phosphor emits light with a first spectral characteristic when irradiated by the light at the wavelength and the second phosphor emits light with a second spectral characteristic when irradiated by the light at the wavelength. |
