High brightness light emitting apparatus including a wavelength converting member with improved thermal properties
Abstract:
According to various embodiments, a light emitting apparatus is disclosed. In one example, the light emitting apparatus comprises a light source arranged to emit light of a first wavelength onto a wavelength converting member. The wavelength converting member comprises a wavelength converting element arranged to convert the light of the first wavelength into light of the second wavelength, a reflective heat conducting element arranged to reflect light of the second wavelength, and a beam shaping heat conducting element arranged to transmit light of the first wavelength and of the second wavelength, wherein the beam shaping heat conducting element is arranged to direct light of the first wavelength and of the second wavelength with an angular distribution within a collection angle of the collecting lens. The wavelength converting element is in direct thermal contact with the beam shaping heat conducting element and in thermal contact with the reflective heat conducting element.
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