Phosphor element and lighting device

A phosphor element comprising:

• a phosphor part including an incident face onto which an excitation light is made incident from outside said phosphor element, an opposing face opposing said incident face, and a side face, said phosphor part converting a part of said excitation light incident onto said incident face to a fluorescence and emitting said excitation light and said fluorescence from said incident face to the outside of said phosphor element,
• an integral low refractive index layer, composed of a single material without a break, on said side face and said opposing face of said phosphor part, said low refractive index layer having a refractive index lower than a refractive index of said phosphor part,
• an integral reflection film composed of a single material without a break and covering a surface of said low refractive index layer, and
• a dispersing material dispersed in said phosphor part,
• wherein an area of said incident face of said phosphor part is larger than an area of said opposing face,
• a distance between said incident face of said phosphor part and said opposing face of said phosphor part is from 290 μm-1.0 mm, and
• an inclination angle of said side face with respect to said incident face is from 25° to 49°.