Patent ID: 8733957
Filing Date: 2014-05-27
Classification: F21S,F21Y

Abstract:
1. A light emitting device, comprising: an excitation light source for emitting excitation light; a light emitting section for emitting fluorescence by receiving the excitation light emitted from the excitation light source; and a light-projecting section for projecting the fluorescence emitted from the light emitting section, the light emitting section being placed so that a focal point of the light-projecting section and a periphery of the focal point are positioned on the light emitting section, the light emitting section being most strongly excited at a portion corresponding to the focal point, meanwhile, at a portion corresponding to the periphery of the focal point, the light emitting section being excited with intensity being dependent on light intensity distribution of the excitation light on an irradiation surface of the light emitting section.