| 摘要 |
PURPOSE: A light source device is provided to improve light emitting efficiency, a wet-proof property, and heat resistance by improving the composition of a fluorescent film. CONSTITUTION: A light source device comprises a LED(Light Emitting Diode)(131), a fluorescent film(12), and a thin film. The fluorescent film changes blue light, which is emitted from the LED, into white light. The fluorescent film is formed by spreading a mixture of a fluorescent material, a solvent, and an organic binder on at least one surface of a glass substrate. The thin film is formed by spreading a coating material which contains metal alkoxide and/or metal alkoxide oligomer on the fluorescent film. |
