WELLENLÄNGENWANDLER UND HERSTELLUNGSVERFAHREN DAFÜR SOWIE LICHTEMITTIERENDE VORRICHTUNG MIT DEM WELLENLÄNGENWANDLER

摘要

A wavelength converter 100 includes: a first phosphor 1 composed of an inorganic phosphor activated by Ce³⁺; and a second phosphor 2 composed of an inorganic phosphor activated by Ce³⁺and different from the first phosphor. At least one of the first phosphor and the second phosphor is particulate. The first phosphor and the second phosphor are bonded to each other by at least one of a chemical reaction in a contact portion between the compound that constitutes the first phosphor and a compound that constitutes the second phosphor and of adhesion between the compound that constitutes the first phosphor and the compound that constitutes the second phosphor.