Title:
PHOSPHOR, PROCESS FOR PRODUCING THE SAME, LIGHTING FIXTURE AND IMAGE DISPLAY UNIT
Document Type and Number:
WIPO Patent Application WO/2005/087896
Kind Code:
A1
Abstract:
A green color phosphor that exhibits a green color luminance higher than that of conventional rare-earth-activated sialon phosphors, being superior in durability to conventional oxide phosphors. There is provided a phosphor comprising a crystal of oxynitride or nitride with β type Si3N4 crystal structure in which Eu is contained in the form of solid solution, which phosphor is capable of emitting fluorescence having a peak in a wavelength zone ranging from 500 to 600 nm upon irradiation of an excitation source.
Inventors:
Hirosaki, Naoto c/o National Institute for Materials Science (2-1 Sengen 1-chom, Tsukuba-shi Ibaraki 47, 30500, JP)
Application Number:
PCT/JP2005/004596
Publication Date:
September 22, 2005
Filing Date:
March 09, 2005
Export Citation:
Assignee:
NATIONAL INSTITUTE FOR MATERIALS SCIENCE (2-1 Sengen 1-chome, Tsukuba-shi, Ibaraki 47, 30500, JP)
Hirosaki, Naoto c/o National Institute for Materials Science (2-1 Sengen 1-chom, Tsukuba-shi Ibaraki 47, 30500, JP)
Hirosaki, Naoto c/o National Institute for Materials Science (2-1 Sengen 1-chom, Tsukuba-shi Ibaraki 47, 30500, JP)
International Classes:
C09K11/64; C09K11/08; C09K11/59; C09K11/77; H01J1/63; H01J11/02; H01J29/20; H01L33/50; (IPC1-7): C09K11/59; C09K11/08; C09K11/64; H01J1/63; H01J11/02; H01J29/20; H01L33/00
Attorney, Agent or Firm:
Moritake, Yoshiaki (Tokyo-Chizai Patent Office, Kita-yaesu Bldg. 3rd Floor, 2-11, Nihonbashi 3-Chom, Chuo-Ku Tokyo 27, 10300, JP)
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