Patent ID: 8348458

Claim:
A light-emitting device having a light exit window, the device comprising a light emitting diode for emitting light in a first wavelength range; a reflective body comprising defined domains comprising wavelength converting material arranged on a reflective layer, said reflective body being arranged to receive light emitted by said light emitting diode and to reflect said light towards the light exit window; a wavelength converting layer comprising the wavelength converting material for absorbing light of said first wavelength range and to emit light of a second wavelength range, said wavelength converting layer and said light emitting diode being mutually spaced apart; and a plurality of light-scattering elements for scattering light of at least said first wavelength range; wherein at least a portion of said plurality of light-scattering elements are arranged in the path of light from said light emitting diode to said wavelength converting layer; said reflective body further comprises said wavelength converting layer, said wavelength converting layer being arranged in the path of light from said light source to said reflective layer; said reflective body further comprises a diffusing layer arranged in the path of light from said light emitting diode to said wavelength converting layer, said diffusing layer comprising at least said portion of said plurality of light-scattering elements; and said reflective layer, said wavelength converting layer, and said diffusing layer form a multi-layer film.