Patent ID: 8120050

Claim:
A light-emitting element, comprising: a semiconductor substrate; a light emitting layer portion comprising an active layer on the semiconductor substrate; a first reflective layer between the semiconductor substrate and the active layer for reflecting light emitted from the active layer; and a second reflective layer between the semiconductor substrate and the first reflective layer for reflecting light with a wavelength different from that of the light reflected by the first reflective layer, wherein the first reflective layer comprises a plurality of first pair layers, each of the first pair layers comprising two first semiconductor layers having refractive indexes different from each other, wherein the two first semiconductor layers have a bandgap energy greater than an energy of the light emitted from the active layer, wherein the second reflective layer comprises a plurality of second pair layers, each of the second pair layers comprising two second semiconductor layers having refractive indexes different from each other, and wherein the two second semiconductor layers have a bandgap energy equivalent to or smaller than the energy of the light emitted from the active layer.