Patent ID: 7543959

Claim:
An apparatus comprising: a light emitting element; an optical concentrator having an entrance surface and an exit surface, the entrance surface optically coupled to the light emitting element with no intervening optical collimating element disposed between the optical concentrator and the light emitting element, the optical concentrator concentrating the light received at the entrance surface to the exit surface which is smaller than the entrance surface; a wavelength converting material mounted on the exit surface of the optical concentrator, the wavelength converting material converting at least a portion of the light emitted by the light emitting element to a one or more wavelengths; and a dichroic filter disposed between the light emitting element and the wavelength converting element, wherein the dichroic filter reflects light emitted by the wavelength converting element having the one or more wavelengths; wherein the dichroic filter is disposed between the light emitting element and the optical concentrator so that light emitted from the light emitting element passes through the dichroic filter before reaching the entrance surface of the optical concentrator.