Patent ID: 8882299

Claim:
A wavelength conversion member comprising: a light transmissive member including a light input plane into which light is inputted, and a light output plane from which light is outputted; and a semiconductor fine particle phosphor arranged inside said light transmissive member, for absorbing excitation light and emitting light after converting wavelength of the same, wherein said wavelength conversion member includes a portion where said semiconductor fine particle phosphor is regularly arrayed, as a result of self-organization, in a plane that is orthogonal to a light traveling direction which is a direction connecting said light input plane and said light output plane, a dispersion concentration of said semiconductor fine particle phosphor in a direction parallel to said light traveling direction is lower than a dispersion concentration of said semiconductor fine particle phosphor in a direction orthogonal to said light traveling direction, and said semiconductor fine particle phosphor is packed in a form of hexagonal lattice in said portion where said semiconductor fine particle phosphor is regularly arrayed.