| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a light source device capable of sufficiently attaining high luminance in comparison with a conventional light source device. <P>SOLUTION: In the light source device including a solid light source 5 for emitting light of a designated wavelength among a wavelength range from ultraviolet light to visible light, and a phosphor layer 2 containing at least one kind or more of phosphors which is excited with excited light from the solid light source 5 and emits fluorescence of a wavelength longer than the wavelength emitted from the solid light source 5 and not substantially containing a resin component, the solid light source 5 and the phosphor layer 2 are spatially arranged at a separated location, and the fluorescence is extracted from a face among faces of the phosphor layer 2, wherein the excited light from the solid light source 5 is incident, by using a reflection method. A base board 6 having light reflectivity and thermal conductivity is arranged on a face opposite to a side where the excited light is incident, among the faces of the phosphor layer 2, and the phosphor layer 2 is connected to the base board 6 at a connection section 7 made of a material having light reflectivity, thermal conductivity, and fluidity. <P>COPYRIGHT: (C)2013,JPO&INPIT |
