Patent attributes
A light emitting device includes: a first LED that emits a first primary light in a first primary wavelength range when activated; a second LED that emits a second primary light in a second primary wavelength range when activated, the second primary wavelength range differing from the first primary wavelength range; and a semiconductor photon-recycling member associated with the first LED in such a manner to convert a portion of the first primary light into a secondary light in a secondary wavelength range through photon-recycling mechanism and to permit the remainder of the first primary light to pass therethrough. The secondary wavelength range is different from the first and second primary wavelength ranges, thereby enabling the light emitting device to emit a multiple-chromatic light.