| http://www.w3.org/ns/prov#value | - Therefore, when such peaks are defined as a, b, c and a peak intensity ratio of a, c to b is expressed by I(a/b), I(c/b), the peak intensity is changed in the range of 0.02<I(a/b), I(c/b)<1.5, by changing the mixing composition of the phosphor within a composition range.
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