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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

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.

4. 发明授权

US10378709B2 Illumination system for reproducing the color temperature range of solar light for illuminating exhibits 有权
公开(公告)号：US10378709B2
公开(公告)日：2019-08-13
申请号：US15712732
申请日：2017-09-22
申请人： KABUSHIKI KAISHA TOSHIBA , TOSHIBA MATERIALS CO., LTD.
发明人： Yasuhiro Shirakawa , Masahiko Yamakawa
IPC分类号： F21S10/02 , F21S2/00 , H01L33/50 , F21K9/64 , F21Y113/10 , F21W131/304
摘要： According to one embodiment, an illumination system includes a plurality of white light sources that satisfies −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 where P(λ) is an emission spectrum of a white light source having a specific color temperature, B(λ) is an emission spectrum of black body radiation having a corresponding color temperature, V(λ) is a spectrum of spectral luminous efficiency, λ max 1 is a wavelength at which P(λ)×V(λ) becomes maximum, and λ max 2 is a wavelength at which B(λ)×V(λ) becomes maximum. The respective white light sources have different color temperatures, and light from the respective white light sources is irradiated from different directions to a target.

5. 发明授权

US09551467B2 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相同
公开(公告)号：US09551467B2
公开(公告)日：2017-01-24
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 , F21V9/16 , H01L33/50 , C09K11/77
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≤[（P（λ）×V（λ））/（P（λmax1）×V（λmax1）） - （Bλ）假设：白光源的发光光谱为P（λ）;×V（λ））/（B（λmax2）×V（λmax2））]≤+ 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。

6. 发明授权

US09115855B2 White light source 有权
标题翻译：白光源
公开(公告)号：US09115855B2
公开(公告)日：2015-08-25
申请号：US14026693
申请日：2013-09-13
申请人： KABUSHIKI KAISHA TOSHIBA , TOSHIBA MATERIALS CO., LTD.
发明人： Tatsunori Itoga , Masahiko Yamakawa , Yasumasa Ooya
IPC分类号： H01J1/62 , F21K99/00 , C09K11/77 , H05B33/08 , C09K11/02 , H01L33/50
CPC分类号： F21K9/56 , C09K11/02 , C09K11/7734 , F21K9/64 , H01L33/502 , H01L33/507 , H05B33/0857 , Y02B20/181
摘要： A white light source 1 of an embodiment has color temperature of 2600 [K] or more and less than 3200 [K]. The white light source of the embodiment has a ratio of a minimum emission intensity to a maximum emission intensity in a wavelength region of from 450 to 610 [nm] on an emission spectrum of 0.16 or more and less than 0.35.
摘要翻译：实施例的白光源1的色温为2600 [K]以上且小于3200 [K]。实施例的白光源在发光光谱为0.16以上且小于0.35的情况下，在450〜610 [nm]的波长范围内的最小发光强度与最大发光强度的比率。

7. 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.

8. 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.

9. 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.

10. 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.

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