Title:
白色光源システム
Document Type and Number:
Japanese Patent JP7285877
Kind Code:
B2
Abstract:
There is provided a white light source approximating sunlight and being capable of reproducing a subtle difference in sunlight which changes depending on times and locations, and provided a white light source system of a lighting system or the like. The white light source includes a light source unit. Light which is emitted from the light source unit is a chromaticity point on a CIE chromaticity diagram and has a correlated color temperature corresponding to a chromaticity point including a deviation of -0.005 or more to +0.005 or less with respect to a black body radiation locus, and satisfies a formula: -0.2 ≤ [(P (λ) × V (λ))/(P (Xmax1) × V (Xmax1)) - (B (λ) × V (λ))/(B (kmax2) × V (λmax2))] ≤ +0.2.
Inventors:
Masahiko Yamakawa
Noriaki Yagi
Kumpei Kobayashi
Noriaki Yagi
Kumpei Kobayashi
Application Number:
JP2021077560A
Publication Date:
June 02, 2023
Filing Date:
April 30, 2021
Export Citation:
Assignee:
SEOUL SEMICONDUCTOR CO., LTD.
International Classes:
H01L33/50; C09K11/08; F21S2/00; H05B45/10; H05B45/20; H05B47/155
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Attorney, Agent or Firm:
Patent Attorney Corporation Takahashi Hayashi and Partners
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