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    WHITE LIGHT EQUIPMENT
    6.
    发明公开
    WHITE LIGHT EQUIPMENT 审中-公开

    公开(公告)号：EP3848985A8

    公开(公告)日：2021-08-25

    申请号：EP21160434.3

    申请日：2011-06-23

    申请人： Toshiba Materials Co., Ltd.

    发明人： Yamakawa, Masahiko ,  Shirakawa, Yasuhiro

    IPC分类号： H01L33/50 ,  F21K99/00 ,  H05B45/00 ,  H05B45/20 ,  H01L25/075 ,  H05B33/08 ,  F21Y113/00 ,  F21K9/23 ,  F21Y113/13 ,  F21Y113/17 ,  F21Y115/10

    摘要： The present invention provides a white light source comprising a blue light emitting LED having a light emission peak of 421 to 490 nm and satisfying a relational equation of − 0.2 ≤ P λ × V λ / P λmax 1 × V λmax 1 − B λ × V λ / B λmax 2 × V λmax ≤ + 0.2 , assuming that: a light emission spectrum of the white light source is P(λ); a light emission spectrum of black-body radiation having a same color temperature as that of the white light source is B(λ); a spectrum of a spectral luminous efficiency is V(λ); a wavelength at which P(λ) × V(λ) becomes largest is λmax1; and a wavelength at which B(λ) × V(λ) becomes largest is λmax2. According to the above white light source, there can be provided a white light source capable of reproducing the same light emission spectrum as that of natural light.

    WHITE LIGHT EQUIPMENT
    9.
    发明公开
    WHITE LIGHT EQUIPMENT 审中-公开

    公开(公告)号：EP4258819A3

    公开(公告)日：2024-01-24

    申请号：EP23177418.3

    申请日：2011-06-23

    申请人： Seoul Semiconductor Co., Ltd.

    发明人： Yamakawa, Masahiko ,  Shirakawa, Yasuhiro

    IPC分类号： H01L33/50 ,  F21K99/00 ,  H05B45/00 ,  H05B45/20 ,  H01L25/075 ,  F21Y113/00 ,  F21K9/23 ,  F21Y113/13 ,  F21Y113/17 ,  F21Y115/10

    摘要： The present invention provides a white light source comprising a blue light emitting LED having a light emission peak of 421 to 490 nm and satisfying a relational equation of − 0.2 ≤ P λ × V λ / P λ max 1 × V λ max 1 − B λ × V λ / B λ max 2 × V λ max 2 ≤ + 0.2 , assuming that: a light emission spectrum of the white light source is P(λ); a light emission spectrum of black-body radiation having a same color temperature as that of the white light source is B(λ); a spectrum of a spectral luminous efficiency is V(λ); a wavelength at which P(λ) × V(λ) becomes largest is λmax1; and a wavelength at which B(λ) × V(λ) becomes largest is λmax2. According to the above white light source, there can be provided a white light source capable of reproducing the same light emission spectrum as that of natural light.