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PROBLEM TO BE SOLVED : To provide an ultraviolet light emitting device capable of achieving high brightness and controllability of light emission center wavelength by using an ultraviolet light emitting phosphor based on a rare earth aluminum garnet crystal. SOLUTION : There is used an ultraviolet light emitting phosphor which contains rare earth aluminum garnet crystal (LuxY1-x)3(AlyZ1-y)5O12, where 0≤x≤1, 0
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