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Title:
湿気保護蛍光体およびLED照明デバイス
Document Type and Number:
Japanese Patent JP2009526089
Kind Code:
A
Abstract:
The present invention provides-a photoluminescent phosphor coated with a coating of oxide, the phosphor comprising (1) an inorganic phosphor chosen from (a) a metal thiogallate phosphor and (b) a metal sulfide phosphor and (2) a coating that comprises at least one layer having at least one oxides. The coated photoluminescent phosphor of the present invention is more resistant to water-induced degradation than when it is uncoated.

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Inventors:
Chan, Yonchi
Yocom, Perry, Neil
Yang, Ryou
Frederickson, Gerald
Robert Sims
Application Number:
JP2008543285A
Publication Date:
July 16, 2009
Filing Date:
October 12, 2006
Export Citation:
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Assignee:
Sarnoff Corporation
International Classes:
C09K11/56; C09K11/08; C09K11/59; C09K11/64; H01L33/50
Attorney, Agent or Firm:
Masao Okabe
Nobuaki Kato
Okabe
Shinichi Usui
Takao Ochi
Asahi Shinmitsu
Katsumi Miyama



 
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