| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a light source device which can improve utilization efficiency of light through restraint of dust adhesion on a surface of a phosphor layer. <P>SOLUTION: The light source device 10 includes a wavelength conversion member 1 including a substrate which can rotate around a given rotating axis and a phosphor layer containing a phosphor and fitted to the substrate, a light source 11, condensing optical systems 12, 13 making excitation light emitted from the light source to be irradiated to be condensed to the phosphor layer, and a casing 16 with a sealed space 20 formed for housing the wavelength conversion member and blocking from outside. <P>COPYRIGHT: (C)2012,JPO&INPIT |
