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PROBLEM TO BE SOLVED : To provide a near-infrared emitting phosphor with increased emission intensity. SOLUTION : A near-infrared emitting phosphor has a compositional formula represented by the general formula (I) defined by (Ln1-x-yCexCry)3M5O12. In the formula, Ln is at least one selected from rare-earth elements excluding Ce; M is at least one selected from Al, Ga and In; and the range of x satisfies 0.0002

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