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Title:
ULTRA-HIGH COLOR RENDERING WHITE LIGHT-EMITTING ELEMENT HAVING CONTROLLED EMISSION SPECTRUM, AND LIGHTING DEVICE COMPRISING SAME
Document Type and Number:
WIPO Patent Application WO/2019/182194
Kind Code:
A1
Abstract:
The present invention relates to an ultra-high color rendering white light-emitting element having a smooth emission spectral distribution over the entire visible light spectrum and having a high color fidelity index and color gamut index at different color temperatures, and a lighting device comprising the ultra-high color rendering white light-emitting element. The present invention provides an ultra-high color rendering white light-emitting element of which Ra is greater than or equal to 98 and less than 100, comprising: a semiconductor LED chip for emitting light, of a violet wavelength region, having an emission peak at 380 nm to 430 nm, inclusive; and a fluorescent body layer which is distributed in a transparent resin layer and which is excited by an excitation wavelength of the violet LED chip so as to emit light, wherein the fluorescent body layer comprises: a first fluorescent body having an emission peak at 450 to 470 nm; a second fluorescent body having an emission peak at 510 to 550 nm; a third fluorescent body having an emission peak at 550 to 590 nm; a fourth fluorescent body having an emission peak at 630 to 660 nm; and a fifth fluorescent body having an emission peak at 660 to 730 nm.

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Inventors:
AN JONG UK (KR)
BAE JEONG BIN (KR)
SHIM JAI GON (KR)
Application Number:
PCT/KR2018/006296
Publication Date:
September 26, 2019
Filing Date:
June 01, 2018
Export Citation:
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Assignee:
ALLIX CO LTD (KR)
AN JONG UK (KR)
International Classes:
H01L33/50; F21K9/00
Foreign References:
KR20170134241A2017-12-06
KR20110085206A2011-07-27
KR20170068728A2017-06-20
JP2012056970A2012-03-22
KR20170112164A2017-10-12
Other References:
See also references of EP 3567644A4
Attorney, Agent or Firm:
DAHAI INTERNATIONAL PATENT & LAW FIRM (KR)
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