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Title:
酸化亜鉛蛍光体とその製造法及び発光装置
Document Type and Number:
Japanese Patent JP4635184
Kind Code:
B2
Abstract:
The present invention relates to a zinc oxide phosphor characterized by emitting visible light with a broad emission spectrum close to white, and a process for producing the same. A powder prepared by adding a plurality of additives to zinc oxide and heat-treating the resulting mixture is further hydrogenated to improve the luminous efficiency of the zinc oxide phosphor. The zinc oxide phosphor providing a broad emission spectrum covering a wavelength range over substantially the entire visible region can be applied to a white diode, a white vacuum fluorescent display, and a fluorescent paint.

Inventors:
Naoki Ohashi
Takamasa Ishigaki
Hiroyuki Taguchi
Sakaguchi Isao
Haeda Hajime
Takashi Sekiguchi
Application Number:
JP2005505959A
Publication Date:
February 16, 2011
Filing Date:
April 30, 2004
Export Citation:
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Assignee:
National Institute for Materials Science
International Classes:
C09K11/54; C09K11/08; C09K11/62; H01J29/20; H01J61/44; H01J63/04
Domestic Patent References:
JP2003231878A2003-08-19
Attorney, Agent or Firm:
Yoshiyuki Nishi