Patent ID: 9644803
Date: 2017-05-09
CPC Classifications: F21K,F21V,G02B,G03B,H04N

Claim:
1. A light source comprising: at least one semiconductor luminescence element; a first wavelength converting unit that is disposed away from the semiconductor luminescence element; and a rotatable second wavelength converting unit disposed between the semiconductor luminescence element and the first wavelength converting unit, wherein the second wavelength converting unit includes a second wavelength converting region that absorbs output light emitted from the semiconductor luminescence element and radiates second light having a dominant wavelength different from that of the output light, and a transmission region that transmits the output light, the first wavelength converting unit absorbs the output light to radiate first light having a wavelength longer than the dominant wavelength of the second light, and the first light passes through the transmission region, and a third wavelength converting region is formed in the second wavelength converting unit, the third wavelength converting region absorbing the output light to radiate third light having a dominant wavelength different from that of the second light.