| abstract |
Manufacturing method of an optical wavelength conversion member capable of suppressing blackening of an optical wavelength conversion member, an optical wavelength conversion member in which blackening is suppressed, an optical wavelength conversion component provided with an optical wavelength conversion member, and an optical wavelength conversion member or optical wavelength conversion To provide a light emitting device having a component. Al 2 O 3 and A 3 B 5 O 12: a method of manufacturing an optical wavelength conversion member 9 is configured of a sintered body containing as a main component a component represented by Ce. In this manufacturing method, a pressure is 10 4 Pa or more, and oxygen concentration includes baking in the baking atmosphere whose oxygen concentration is 0.8 volume% or more and less than 25 volume%. Therefore, blackening of the sintered compact by furnace atmosphere is suppressed, and high fluorescence characteristic is acquired. As for the optical wavelength conversion member 9 manufactured by such a manufacturing method, high fluorescence intensity is obtained and it is also possible to improve the homogeneity of a color. Therefore, under a high-output LED or laser light source, the optical wavelength conversion member 9 which can exhibit a high fluorescence characteristic can be manufactured. |