| 摘要 |
A method for producing a phosphor which has a step of heating and sintering a raw material for a phosphor containing the elements constituting the phosphor itself and an activating agent or compounds containing said elements, characterized in that in the above sintering step, the raw material for a phosphor is continuously passed through a tubular rotating heating furnace which is installed being inclined to a horizontal surface, to thereby heat and sinter the raw material in the heating furnace, and the sintered product discharged continuously from the heating furnace is rapidly cooled. The method allows the production of spherical phosphor particles which are uniform in the particle diameter and shape thereof and exhibit good dispersibility, at a low cost in good yield.
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