| 摘要 |
PROBLEM TO BE SOLVED: To provide a light source device that improves the reflectivity to enhance the utilization efficiency of reflected light, and achieves cost reduction, and a projection type display apparatus employing the light source device.SOLUTION: A light source device includes: an excitation light source; and a fluorescence light-emitting plate including a fluorescence light-emitting section arranged opposite to the excitation light source and a reflection section containing titanium oxide located on the opposite side of the excitation light source and arranged so as to be joined to the fluorescence light-emitting section. Then, excitation light from the excitation light source is projected onto the fluorescence light-emitting section, so that fluorescence emission light is emitted from the fluorescence light-emitting section and reflected fluorescence light is emitted from the reflection section. |
