SPHERICAL PHOSPHOR, WAVELENGTH CONVERSION FILTER, AND COLOR CONVERSION LIGHT-EMITTING DEVICE USING THE SAME

摘要

PROBLEM TO BE SOLVED: To provide a spherical phosphor that has high durability and converts the wavelength of absorbed light to emit fluorescence having high intensity, to provide a wavelength conversion filter and to provide a color conversion light-emitting device using the filter.

SOLUTION: The spherical phosphor is characterized in that a transparent material containing at least one kind of fluorescent dye is spherical. In the spherical phosphor, the fluorescent dye is an organic phosphor or a rare earth metal complex. In the spherical phosphors, the transparent material is a transparent resin. The wavelength conversion filter includes any one of these spherical phosphors. The color conversion light-emitting device has the wavelength conversion filter.

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