WAVELENGTH CONVERSION ELEMENT, LIGHT-EMITTING DEVICE HAVING WAVELENGTH CONVERSION ELEMENT, VEHICLE HAVING LIGHT-EMITTING DEVICE AND MANUFACTURING METHOD OF WAVELENGTH CONVERSION ELEMENT

摘要

PROBLEM TO BE SOLVED: To provide a wavelength conversion element having high light extraction efficiency or wavelength conversion efficiency in a wide wavelength band and light-emitting device using the same.;SOLUTION: The wavelength conversion element includes: a phosphor layer 10 including plural phosphor particles 13 which are excited by a light beam from a light source and a matrix 14 disposed among plural phosphor particles 13 and a columnar structure 20 abutted on the phosphor layer 10 in which at least two different kinds of plural columnar bodies 21 different at least either in height or thickness are periodically disposed. The columnar structure 20 in which at least two kinds of plural columnar bodies 21 are periodically disposed is a photonic crystal.;COPYRIGHT: (C)2015,JPO&INPIT