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Patent Searching and Data


Title:
PHOSPHOR, AND LIGHT EMITTER USING THE SAME
Document Type and Number:
Japanese Patent JP2005008844
Kind Code:
A
Abstract:

To provide a phosphor emitting green-based lights efficiently excited with UV lights or visible lights, and a light emitter using the same.

The phosphor is expressed by the general formula: (Lu1-a-bRaMb)3(Al1-cGac)5O12 (wherein R expresses at least one species of rare earth elements including Ce as an essential element; M expresses at least one species selected from Sc, Y, La and Gd; 0.0001≤ a≤ 0.5; 0≤ b ≤0.5; 0.0001≤ a+b<1; 0≤ c≤ 0.8), and has high emission intensity excited by 300-550 nm UV lights or visible lights. The light emitter excellent in emission characteristics is provided by using the phosphor to an emitter such as an emission diode, a high pressure mercury lamp and the like.


Inventors:
Murazaki, Yoshinori
Yagi, Tetsuya
Application Number:
JP2003000281640
Publication Date:
January 13, 2005
Filing Date:
July 29, 2003
Export Citation:
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Assignee:
NICHIA CHEM IND LTD
International Classes:
C09K11/80; C09K11/08; C09K11/62; C09K11/64; H01L33/06; H01L33/32; H01L33/50; H01L33/56; H01L33/62; (IPC1-7): C09K11/80; C09K11/08; C09K11/62; C09K11/64; H01L33/00