Phosphor and LED light emitting device using the same

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United States of America Patent

PATENT NO 9660149
APP PUB NO 20160049558A1
SERIAL NO

14921013

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Abstract

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An LED light emitting device is provided that has high color rendering properties and is excellent color uniformity and, at the same time, can realize even luminescence unattainable by conventional techniques. A phosphor having a composition represented by formula: (Sr2-X-Y-Z-ωBaXMgYMnZEuω)SiO4 wherein x, y, z, and ω are respectively coefficients satisfying 0.1z, and 0.01<ω<0.2 is provided. The phosphor is used in combination with ultraviolet and blue light emitting diodes having a luminescence peak wavelength of 360 to 470 nm to form an LED light emitting device.

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Patent OwnerAddress
SEOUL SEMICONDUCTOR CO LTD97-11 SANDAN-RO 163BEON-GIL DANWON-GU ANSAN-SI GYEONGGI-DO 15429

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Funayama, Yoshitaka Yokohama, JP 11 55
Ishii, Tsutomu Yokohama, JP 161 1494
Ito, Yumi Yokohama, JP 22 199
Nakagawa, Katsutoshi Yokohama, JP 27 323
Ooya, Yasumasa Chigasaki, JP 38 449
Sakai, Ryo Yokohama, JP 102 754
Shirakawa, Yasuhiro Yokohama, JP 70 742
Takeuchi, Hajime Yokohama, JP 110 1634

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