Title:
PHOSPHOR AND METHOD FOR PRODUCING SAME, AND LIGHT-EMITTING DEVICE USING SAME AND METHOD FOR MANUFACTURING SUCH DEVICE
Document Type and Number:
WIPO Patent Application WO/2006/051768
Kind Code:
A1
Abstract:
When a phosphor for ultraviolet excitation or visible light excitation is excited by light having a wavelength within a range from 100nm to 500 nm and the emission color of the phosphor is represented by xy coordinates, the difference between the maximum value and the minimum value of the x coordinate and the difference between the maximum value and the minimum value of the y coordinate are respectively not more than 0.020. A light-emitting device comprises a light-emitting unit which contains at least such a phosphor. The light-emitting unit emits visible light when irradiated with ultraviolet or visible light emitted from an excitation source.
Inventors:
YAMAKAWA MASAHIKO (JP)
Application Number:
PCT/JP2005/020417
Publication Date:
May 18, 2006
Filing Date:
November 08, 2005
Export Citation:
Assignee:
TOSHIBA KK (JP)
TOSHIBA MATERIALS CO LTD (JP)
YAMAKAWA MASAHIKO (JP)
TOSHIBA MATERIALS CO LTD (JP)
YAMAKAWA MASAHIKO (JP)
International Classes:
C09K11/08; C09K11/59; C09K11/64; C09K11/73; C09K11/78; C09K11/81; C09K11/84; H01J17/49; H01J61/42; H01L33/50
Foreign References:
| JP2004269870A | 2004-09-30 | |||
| JP2004175986A | 2004-06-24 | |||
| JPH10102053A | 1998-04-21 | |||
| JP2002348571A | 2002-12-04 | |||
| JP2004203980A | 2004-07-22 |
Other References:
See also references of EP 1820837A4
Attorney, Agent or Firm:
Suyama, Saichi (1 Kandata-cho 2-chom, Chiyoda-ku Tokyo46, JP)
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