| abstract |
Provided is a sintered phosphor for LEDs having high heat resistance, high thermal conductivity, high brightness, and high conversion efficiency. In addition, a light-emitting device using the sintered phosphor, and a lighting device and a vehicle headlamp using the light-emitting device are provided. The sintered phosphor contains a nitride phosphor and a fluoride inorganic binder. The internal quantum efficiency of the sintered phosphor when excited by blue light having a wavelength of 450 nm is preferably 60% or more. Furthermore, the transmittance at a wavelength of 700 nm is preferably 20% or more. |