HALOPHOSPHATE PHOSPHOR AND WHITE LIGHT-EMITTING DEVICE
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United States of America Patent
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app pub date -
Feb 29, 2012
filing date -
Feb 26, 2010
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Abandoned
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Abstract
The present invention provides a blue (blue-green) phosphor that has sufficient emission intensity in the wavelength region around 490 nm and that has high emission luminance at a temperature region reached during LED operation. The present invention also provides a white light-emitting device that uses a high-luminance green phosphor having an emission peak wavelength of 535 nm or greater and that has improved bright blue reproducibility.
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