Title:
PRODUCTION OF MANGANESE-ACTIVATED ZINC SILICATE FLUORESCENT SUBSTANCE, VACUUM ULTRAVIOLET-EXCITED LIGHT- EMITTING DEVICE AND ITS PRODUCTION
Document Type and Number:
Japanese Patent JP2000282029
Kind Code:
A
Abstract:
To obtain the subject fluorescent substance with long service life.
This fluophor is obtained by heating treatment of a magnagese- activated zinc silicate fluorescent substance of the general formula (Zn, Mn)2SiO4 in an oxygen atmosphere; wherein the heating treatment is carried out as follows: the original fluorescent substance 2 is placed inside a tubular oven 1, and, as shown by an arrow, an oxygen gas is introduced via one end 3 of the oven 1 into the oven 1 which is heated to a specified temperature while exhausting the resultant gas via the other end 4.
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Inventors:
HARUKI SHIGERO
MASUDA MUTSUO
MASUDA MUTSUO
Application Number:
JP9260399A
Publication Date:
October 10, 2000
Filing Date:
March 31, 1999
Export Citation:
Assignee:
MATSUSHITA ELECTRIC IND CO LTD
International Classes:
C09K11/59; C09K11/08; (IPC1-7): C09K11/59; C09K11/08
Attorney, Agent or Firm:
Fumio Iwahashi (2 others)