Title:
ILLUMINATING FLUORESCENT SUBSTANCE, LIGHT-EMITTING DIODE USING THE SAME ILLUMINATING FLUORESCENT SUBSTANCE AND METHOD FOR COATING FLUORESCENT SUBSTANCE
Document Type and Number:
Japanese Patent JP3736357
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To obtain an illuminating fluorescent substance providing nearly the same white light as white light of a white light source for general illumination maintaining a well-balanced state of each component of the three primary colors of red, green and blue and a strong light emission with a high luminous intensity especially when a light source emitting a near ultraviolet light at 340-380 nm wavelength is used as an excitation light source.
SOLUTION: The illuminating fluorescent substance excited by the near ultraviolet light at 340-380 nm wavelength and emitting the white light comprises a red fluorescent substance at 625-750 nm peak wavelength or an orange fluorescent substance at 575-675 nm peak wavelength, a green fluorescent substance at 500-600 nm peak wavelength and a blue fluorescent substance at 400-500 nm peak wavelength.
Inventors:
Shinya Kawagoe
Yuji Omata
Yuji Omata
Application Number:
JP2001029093A
Publication Date:
January 18, 2006
Filing Date:
February 06, 2001
Export Citation:
Assignee:
Matsushita Electric Industrial Co., Ltd
International Classes:
C09K11/08; C09K11/62; C09K11/66; C09K11/73; C09K11/84; H01L33/32; H01L33/44; H01L33/50; H01L33/56; H01L33/62; (IPC1-7): C09K11/08; C09K11/62; C09K11/66; C09K11/73; C09K11/84; H01L33/00
Domestic Patent References:
| JP2002171000A | ||||
| JP2001022308A | ||||
| JP2000183408A | ||||
| JP49023827A | ||||
| JP2000509912A |
Attorney, Agent or Firm:
Fumio Iwahashi
Hiroki Naito
Daisuke Nagano
Hiroki Naito
Daisuke Nagano
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