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1. 发明申请

US20180351050A1 LIGHT SOURCE FOR MYOPIA PREVENTION ARTICLE AND METHOD OF USING LIGHT SOURCE FOR MYOPIA PREVENTION ARTICLE 审中-公开
公开(公告)号：US20180351050A1
公开(公告)日：2018-12-06
申请号：US16044909
申请日：2018-07-25
申请人： TOSHIBA MATERIALS CO., LTD. , TSUBOTA LABORATORY, INC.
发明人： Masahiko Yamakawa , Hidemasa Torii , Toshihide Kurihara , Kazuo Tsubota
IPC分类号： H01L33/50 , H01L25/075 , C09K11/77
CPC分类号： A61F9/00 , A61N5/06 , F21S2/00 , F21V9/30 , H01L33/50
摘要： A light source for myopia prevention article includes a light emitter to emit light having an emission spectrum continuing from a first wavelength of not less than 360 nm nor more than 400 nm to a second wavelength of more than 400 nm.

2. 发明授权

US11007375B2 Light source for myopia prevention article and method of using light source for myopia prevention article 有权
公开(公告)号：US11007375B2
公开(公告)日：2021-05-18
申请号：US16044909
申请日：2018-07-25
申请人： TOSHIBA MATERIALS CO., LTD. , TSUBOTA LABORATORY, INC.
发明人： Masahiko Yamakawa , Hidemasa Torii , Toshihide Kurihara , Kazuo Tsubota
IPC分类号： A61N5/00 , A61N5/06 , A61F9/00 , F21S2/00 , H01L33/50 , F21V9/38 , C09K11/77 , H01L25/075
摘要： A light source for myopia prevention article includes a light emitter to emit light having an emission spectrum continuing from a first wavelength of not less than 360 nm nor more than 400 nm to a second wavelength of more than 400 nm.

3. 发明授权

US12023513B2 Light source for myopia prevention article and method of using light source for myopia prevention article 有权
公开(公告)号：US12023513B2
公开(公告)日：2024-07-02
申请号：US17301859
申请日：2021-04-16
申请人： TOSHIBA MATERIALS CO., LTD. , TSUBOTA LABORATORY, INC.
发明人： Masahiko Yamakawa , Hidemasa Torii , Toshihide Kurihara , Kazuo Tsubota
IPC分类号： A61N5/06 , A61F9/00 , C09K11/77 , F21S2/00 , F21V9/38 , H01L25/075 , H01L33/50
CPC分类号： A61N5/0613 , A61F9/00 , A61N5/06 , C09K11/77342 , C09K11/77348 , C09K11/7738 , F21S2/00 , F21V9/38 , H01L25/0753 , H01L33/50 , H01L33/504 , A61N2005/0651 , A61N2005/0654 , A61N2005/0663 , A61N2005/0667
摘要： A light source for myopia prevention article includes a light emitter to emit light having an emission spectrum continuing from a first wavelength of not less than 360 nm nor more than 400 nm to a second wavelength of more than 400 nm.

4. 发明授权

US11084979B2 Europium-activated alkaline-earth chloroapatite phosphor and light-emitting device thereof 有权
公开(公告)号：US11084979B2
公开(公告)日：2021-08-10
申请号：US16375050
申请日：2019-04-04
申请人： KABUSHIKI KAISHA TOSHIBA , TOSHIBA MATERIALS CO., LTD.
发明人： Naotoshi Matsuda , Tatsunori Itoga , Masahiko Yamakawa , Hirofumi Takemura , Yasuhiro Shirakawa
IPC分类号： C09K11/77 , H01L33/50 , C09K11/73
摘要： A phosphor according to an embodiment is a europium-activated alkaline-earth chloroapatite phosphor having a composition expressed by a composition formula: (M1-xEux)5(PO4)3Cl, where M is an alkaline-earth element containing at least Sr and Ba, x is an atomic ratio satisfying 0.04≤x≤0.2. In the phosphor of this embodiment, absorptance of light at a wavelength of 400 nm is 90% or more, and absorptance of light at a wavelength of 650 nm is 2% or less.

5. 发明授权

US10674577B2 White light source system 审中-公开
公开(公告)号：US10674577B2
公开(公告)日：2020-06-02
申请号：US16444243
申请日：2019-06-18
申请人： KABUSHIKI KAISHA TOSHIBA , TOSHIBA MATERIALS CO., LTD.
发明人： Masahiko Yamakawa , Noriaki Yagi , Kumpei Kobayashi
IPC分类号： H01J7/24 , H01J19/74 , H05B45/10 , H05B45/20 , H05B47/10 , H05B47/16 , F21S2/00 , H01L33/00 , H01L33/50 , H01L25/075 , H01L33/54 , H01L33/56 , F21W131/405 , F21Y115/10 , F21Y113/13
摘要： According to one embodiment, there is provided a white light source system. P(λ), B(λ) and V(λ) satisfy an equation (1) below in a wavelength range of 380 nm to 780 nm. The white light source system satisfies an expression (2) below in a wavelength range of 400 nm to 495 nm: ∫380780P(λ)V(λ)dλ=∫380780B(λ)V(λ)dλ (1) P(λ)/B(λ)≤1.8. (2) where P(λ) is a light emission spectrum of white light, B(λ) is a light emission spectrum of blackbody radiation of a color temperature correspond to a color temperature of the white light, and V(λ) is a spectrum of a spectral luminous efficiency.

6. 发明授权

US10420183B2 White light source and white light source system 有权
公开(公告)号：US10420183B2
公开(公告)日：2019-09-17
申请号：US15493556
申请日：2017-04-21
申请人： KABUSHIKI KAISHA TOSHIBA , TOSHIBA MATERIALS CO., LTD.
发明人： Masahiko Yamakawa , Noriaki Yagi , Kumpei Kobayashi
IPC分类号： H05B33/08 , H05B37/02 , F21K9/64 , F21S8/00 , F21S2/00 , H01L33/50 , F21Y115/10 , F21W131/405
摘要： 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 (λmax1)×V (λmax1))−(B (λ)×V (λ))/(B (λmax2)×V (λmax2))]≤+0.2.

7. 发明授权

US10231305B2 White light source system 有权
公开(公告)号：US10231305B2
公开(公告)日：2019-03-12
申请号：US15850399
申请日：2017-12-21
申请人： KABUSHIKI KAISHA TOSHIBA , TOSHIBA MATERIALS CO., LTD.
发明人： Masahiko Yamakawa , Noriaki Yagi , Kumpei Kobayashi
IPC分类号： F21V9/00 , H05B33/08 , F21S2/00 , H01L33/00 , H01L33/50 , H05B37/02 , H01L25/075 , H01L33/54 , H01L33/56
摘要： According to one embodiment, there is provided a white light source system. P(λ), B(λ) and V(λ) satisfy an equation (1) below in a wavelength range of 380 nm to 780 nm. The white light source system satisfies an expression (2) below in a wavelength range of 400 nm to 495 nm: ∫ 380 780 ⁢ P ⁡ ( λ ) ⁢ V ⁡ ( λ ) ⁢ d ⁢ ⁢ λ = ∫ 380 780 ⁢ B ⁡ ( λ ) ⁢ V ⁡ ( λ ) ⁢ d ⁢ ⁢ λ ( 1 ) P ⁡ ( λ ) / B ⁡ ( λ ) ≦ 1.8 . ( 2 ) where P(λ) is a light emission spectrum of white light, B(λ) is a light emission spectrum of blackbody radiation of a color temperature correspond to a color temperature of the white light, and V(λ) is a spectrum of a spectral luminous efficiency.

8. 发明授权

US09605815B2 White light source and white light source system including the same 有权
公开(公告)号：US09605815B2
公开(公告)日：2017-03-28
申请号：US14356275
申请日：2012-10-19
申请人： KABUSHIKI KAISHA TOSHIBA , TOSHIBA MATERIALS CO., LTD.
发明人： Masahiko Yamakawa , Yasuhiro Shirakawa
IPC分类号： F21V3/04 , H01L33/50 , F21V9/16 , F21K99/00 , F21K9/232 , F21K9/64 , H01L25/075 , F21Y101/00
CPC分类号： F21V9/30 , F21K9/232 , F21K9/64 , F21V3/04 , F21Y2101/00 , F21Y2115/10 , H01L25/0753 , H01L33/504 , H01L2924/0002 , H01L2924/00
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.

9. 发明申请

US20140293577A1 WHITE LIGHT SOURCE AND WHITE LIGHT SOURCE SYSTEM INCLUDING THE SAME 有权
标题翻译：白光源和白光源系统，包括它们
公开(公告)号：US20140293577A1
公开(公告)日：2014-10-02
申请号：US14353579
申请日：2012-10-23
申请人： KABUSHIKI KAISHA TOSHIBA , TOSHIBA MATERIALS CO., LTD.
发明人： Masahiko Yamakawa , Yasuhiro Shirakawa
IPC分类号： F21K99/00
CPC分类号： F21K9/60 , C09K11/7734 , F21V9/30 , F21Y2113/13 , F21Y2115/10 , H01L33/504 , Y02B20/181
摘要： The present invention provides a white light source comprising: a blue light emitting diode (blue LED) having a light emission peak wavelength in a range of 421 to 490 nm; and a phosphor layer including phosphor and resin, wherein the white light source satisfies a relational equation of −0.2≦[(P(λ)×V(λ))/(P(λmax1)×V(λmax1))−(Bλ)×V(λ))/(B(λmax2)×V(λmax2))]≦+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, and wherein an amount of chromaticity change on CIE chromaticity diagram from a time of initial lighting up of the white light source to a time after the white light source is continuously lighted up for 6000 hours is less than 0.010. 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.
摘要翻译：本发明提供一种白光源，包括：发光峰值波长在421〜490nm的蓝色发光二极管（蓝色LED）; 以及包含荧光体和树脂的荧光体层，其中白色光源满足关系式-0.2＆nlE; [（P（λ）×V（λ））/（P（λmax1）×V（λmax1）） - （Bλ ）×V（λ））/（B（λmax2）×V（λmax2））]＆nlE; +0.2，假设：白光源的发光光谱为P（λ）具有与白光源相同的色温的黑体辐射的发光光谱为B（λ）; 光谱发光效率的谱是V（λ）; P（λ）×V（λ）最大的波长为λmax1; 并且B（λ）×V（λ）变得最大的波长为λmax2，并且其中从白光源的初始点亮时间到白光源之后的时间的CIE色度图上的色度变化量连续点亮6000小时，小于0.010。根据上述白光源，可以提供能够再现与自然光相同的发光光谱的白光源。

10. 发明授权

US10473274B2 White light source system 有权
公开(公告)号：US10473274B2
公开(公告)日：2019-11-12
申请号：US15849346
申请日：2017-12-20
申请人： KABUSHIKI KAISHA TOSHIBA , TOSHIBA MATERIALS CO., LTD.
发明人： Masahiko Yamakawa , Ryoji Tsuda , Yasumasa Ooya , Tatsunori Itoga , Yasuhiro Shirakawa , Junji Taniguchi
IPC分类号： F21K9/60 , C09K11/59 , C09K11/64 , C09K11/71 , H05B37/02 , H01L33/50 , H05B33/08 , H01L33/00 , C09K11/77 , H05B33/10 , F21Y113/13 , F21Y115/10
摘要： According to one embodiment, there is provided a white light source system including white light sources. An absolute value of a difference between (P(λ)×V(λ))/(P(λmax1)×V(λmax1)) and (B(λ)×V(λ))/(B(λmax2)×V(λmax2)) for each of the white light sources satisfies a relational expression represented by |((P(λ)×V(λ))/(P(λmax1)×V(λmax1))−(B(λ)×V(λ))/(B(λmax2)×V(λmax2))|≤0.15 The white light source system has a light emission characteristic of white light emitted by the system is continuously changed along with an elapse of time by changing a mixing ratio of light beams from the white light sources.

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