Title:
波長変換のためのルミネセンス変換ベースの発光ダイオード及び蛍光体
Document Type and Number:
Japanese Patent JP2004505172
Kind Code:
A
Abstract:
A device for the generation of specific colored light including white light by luminescent down conversion and additive color mixing based on a light-emitting diode (LED) comprising a semiconductor light-emitting layer emitting near UV light about 370-420 nm or blue light about 420-480 nm and phosphors which absorb completely or partly the light emitted by the light-emitting component and emit light of wavelengths longer than that of the absorbed primary light, wherein the light emitting layer of the light emitting component is preferably a Ga(In)N-based semiconductor; and at least one of the phosphors contains a metal sulfide fluorescent material activated with europium containing at least one element selected from the group consisting of Ba, Sr, Ca, Mg and Zn; and/or at least another phosphor which contains a complex thiometalate fluorescent material activated with either europium, cerium or both europium and cerium containing 1) at least one element selected from the group consisting of Ba, Sr, Ca, Mg and Zn and 2) at least one element selected from the group consisting of Al, Ga, In, Y, La and Gd.
Inventors:
Danielson, Earl
Ellens, Andreese
Frank Yellman
Rosner, Wolfgang
Martin, Devney
Daniel Jacintah
Kobush, Manfred
Ellens, Andreese
Frank Yellman
Rosner, Wolfgang
Martin, Devney
Daniel Jacintah
Kobush, Manfred
Application Number:
JP2002516806A
Publication Date:
February 19, 2004
Filing Date:
July 27, 2001
Export Citation:
Assignee:
Osram Opto Semikonductors GmbH
Symyx Technologies,Inc.
Symyx Technologies,Inc.
International Classes:
C09K11/56; C09K11/08; C09K11/62; C09K11/64; C09K11/77; C09K11/84; H01J33/00; H01J63/04; H01L33/50; (IPC1-7): C09K11/56; C09K11/08; C09K11/62; C09K11/64; C09K11/84; H01L33/00
Attorney, Agent or Firm:
Hajime Tsukuni
Fumio Shinoda
Koshiro Tsukuda
Fumio Shinoda
Koshiro Tsukuda