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 c/o Intellectual, Property Division (Toshiba Corporation 1-1, Shibaura 1-chome, Minato-k, Tokyo ., 105-8001, JP)
Application Number:
PCT/JP2005/020417
Publication Date:
May 18, 2006
Filing Date:
November 08, 2005
Export Citation:
Assignee:
KABUSHIKI KAISHA TOSHIBA (1-1 Shibaura 1-chome, Minato-ku Tokyo, 01, 10580, JP)
TOSHIBA MATERIALS CO., LTD. (8 Shinsugita-cho, Isogo-ku Yokohama-shi Kanagawa, 22, 23585, JP)
Yamakawa, Masahiko c/o Intellectual, Property Division (Toshiba Corporation 1-1, Shibaura 1-chome, Minato-k, Tokyo, 105-8001, JP)
TOSHIBA MATERIALS CO., LTD. (8 Shinsugita-cho, Isogo-ku Yokohama-shi Kanagawa, 22, 23585, JP)
Yamakawa, Masahiko c/o Intellectual, Property Division (Toshiba Corporation 1-1, Shibaura 1-chome, Minato-k, Tokyo, 105-8001, JP)
International Classes:
C09K11/08; C09K11/59; C09K11/64; C09K11/73; C09K11/78; C09K11/81; C09K11/84; H01J17/49; H01J61/42; H01L33/50
Attorney, Agent or Firm:
Suyama, Saichi (Kanda Higashiyama Bldg, 1 Kandata-cho 2-chom, Chiyoda-ku Tokyo46, 10100, JP)
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