Patent ID: 7875206
Filing Date: 2011-01-25
Classification: C01B,C09K,H01L

Abstract:
1. A method for manufacturing the luminescent material comprising a light-emitting element emitting light, the light having a main light emission peak in a wavelength ranging from 310 to 420 nm; and a luminescent layer comprising a luminescent material configured to be irradiated with the light, at least part of the luminescent material being a compound having a composition represented by a following general formula (A): wherein, Re is at least one selected from a group consisting of Pr and Dy; and a1, b1, c1, v1 and w1 satisfy following relationships: heating a raw material in a reducing atmosphere constituted by N pulverizing the primary sintered product to obtain a pulverized primary sintered product; housing the pulverized primary sintered product into a container; arranging the container housing the pulverized primary sintered product to a furnace; substituting an atmosphere in the furnace with an inert gas; and heating the pulverized primary sintered product in a reducing atmosphere constituted by N