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13 条记录 (耗时 0.014 秒)

    WHITE LIGHT EQUIPMENT
    1.
    发明公开
    WHITE LIGHT EQUIPMENT 审中-公开

    公开(公告)号：EP3848985A1

    公开(公告)日：2021-07-14

    申请号：EP21160434.3

    申请日：2011-06-23

    申请人： KABUSHIKI KAISHA TOSHIBA ,  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 SOURCE AND WHITE LIGHT SOURCE SYSTEM INCLUDING THE SAME
    3.
    发明公开
    WHITE LIGHT SOURCE AND WHITE LIGHT SOURCE SYSTEM INCLUDING THE SAME 审中-公开

    公开(公告)号：EP3483496A1

    公开(公告)日：2019-05-15

    申请号：EP18212955.1

    申请日：2012-10-19

    申请人： Toshiba Materials Co., Ltd. ,  Kabushiki Kaisha Toshiba

    发明人： Yamakawa, Masahiko ,  Shirakawa, Yasuhiro

    IPC分类号： F21S2/00 ,  F21V3/04 ,  H01L33/50 ,  F21K99/00 ,  H01L25/075

    摘要： The present invention provides a white light source comprising a light emitting diode having a light emission peak wavelength of 350 to 490 nm and a phosphor that emits visible light upon excitation by a light emitted from the light emitting diode; wherein, with respect to an arbitrary local maximum value of light-emission intensity between 350 and 780 nm of a light emission spectrum of the white light source, a ratio of a local minimum value of light-emission intensity that is closest on a long wavelength side to the local maximum value is such that, when the local maximum value is taken as 1, the local minimum value is 0.5 or more. It is preferable that, with respect to an arbitrary local maximum value of light-emission intensity between 350 and 780 nm of a light emission spectrum of the white light source, a ratio of a local minimum value of light-emission intensity that is closest on a long wavelength side to the local maximum value is such that, when the local maximum value is taken as 1, the local minimum value is 0.7 or more. According to the above structure, there can be provided a white light source capable of preventing a specified wavelength region from protruding in the light emission spectrum, and capable of visually perceiving the color tone of the irradiation object as the same state where the object is irradiated with sunlight.

    WHITE LIGHT EMITTING DEVICE, LIGHTING SYSTEM, AND DENTAL LIGHTING SYSTEM
    10.
    发明公开
    WHITE LIGHT EMITTING DEVICE, LIGHTING SYSTEM, AND DENTAL LIGHTING SYSTEM 审中-公开
    白色发光装置，照明系统和牙科照明系统

    公开(公告)号：EP3176836A1

    公开(公告)日：2017-06-07

    申请号：EP16204993.6

    申请日：2013-10-03

    申请人： Kabushiki Kaisha Toshiba ,  Toshiba Materials Co., Ltd.

    发明人： Yamakawa, Masahiko ,  Nakagawa, Katsutoshi ,  Shirakawa, Yasuhiro ,  Ooya, Yasumasa ,  Okamura, Masami

    IPC分类号： H01L33/50

    CPC分类号： H01L33/504 ,  A61B1/06 ,  A61B1/24 ,  A61C1/088 ,  A61C19/003

    摘要： Provided is a white light emitting device capable of preventing that a specific wavelength region protrudes at a light emission spectrum, and enabling an appearance with a color tone similar to sunlight. A white light emitting device includes a light-emitting diode emitting light having a light emission intensity peak at a wavelength region of from 350 to 490 nm and a phosphor layer emitting white light in response to excitation by the light of the light-emitting diode. The phosphor layer includes a plurality of phosphors each having a light emission intensity peak different from one another at a wavelength region of from 420 to 700 nm.

    摘要翻译： 本发明提供一种白色发光装置，其能够防止特定波长区域在发光光谱中突出，并且能够以与太阳光类似的色调进行外观。 白色发光装置包括发光二极管，该发光二极管发出在350-490nm的波长区域具有发光强度峰值的光，以及响应于由发光二极管的光激发而发出白光的荧光体层。 荧光体层包括多个荧光体，每个荧光体在420-700nm的波长区域具有彼此不同的发光强度峰值。