abstract |
A phosphor film includes phosphor particles, a thermally-conductive filler, and a hinder bonding the phosphor particles and the thermally-conductive filler together. The thermally-conductive filler includes glass particles and/or alumina particles. A weight ratio of a weight of the binder to a total weight of the phosphor particles and the thermally-conductive filler is in a range of 0.1 wt % to 5.0 wt %. |