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公开(公告)号：US10222007B2
公开(公告)日：2019-03-05
申请号：US15447706
申请日：2017-03-02
Inventor： Yoko Matsubayashi , Tohru Himeno , Hiroko Koiwa
IPC: F21K9/61 , F21V3/06 , F21V3/00 , F21V19/00 , F21V23/00 , F21V8/00 , F21S8/04 , F21Y105/12 , F21Y105/18 , F21Y113/13 , F21Y115/10 , F21Y113/00
Abstract: A lighting apparatus is provided. The lighting apparatus includes a first light distributor which illuminates a predetermined region, and a second light distributor which illuminates a periphery of the predetermined region. The first light distributor includes a first light emitting element having a spectral emission characteristic defined by a correlated color temperature of light being at least 5400 K and at most 7000 K, Duv being in a range of −6 to 5 inclusive, a chroma value calculated using a calculation method specified by the CIE 1997 Interim Color Appearance Model (Simple Version) being 2.7 or less, and a general color rendering index Ra being 80 or more. The second light distributor includes a second light emitting element having a spectral emission characteristic defined by a correlated color temperature of light being lower than the correlated color temperature of the light emitted by the first light emitting element.
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公开(公告)号：US09797576B2
公开(公告)日：2017-10-24
申请号：US14848420
申请日：2015-09-09
Inventor： Yoko Matsubayashi , Tohru Himeno
IPC: F21V9/16 , H01L33/50 , F21Y113/13 , H01L25/075 , F21Y115/10
CPC classification number: F21V9/30 , F21Y2113/13 , F21Y2115/10 , H01L25/0753 , H01L33/504
Abstract: A luminaire includes a light source unit. The light source unit is configured to irradiate light having a correlated color temperature between 2600 K and 4500 K, a chromaticity deviation Duv between −1.6 and −12, and a general color rendering index Ra of 80 or more.
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公开(公告)号：US10040393B2
公开(公告)日：2018-08-07
申请号：US15657956
申请日：2017-07-24
Inventor： Junichi Hasegawa , Makoto Yamada , Yoko Matsubayashi , Ayako Tsukitani
Abstract: An illumination system includes: a seat in a mobile body; a table to be positioned in front of a passenger when the passenger is seated on the seat; a first light source which illuminates the table; and a second light source which illuminates a region closer to the passenger than to the table. When a distance from the first light source to the table is equal to a distance from the second light source to a virtual irradiated surface, an illuminance on the table irradiated by the first light source is lower than an illuminance on the virtual irradiated surface irradiated by the second light source.
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公开(公告)号：USRE47591E1
公开(公告)日：2019-09-03
申请号：US15626636
申请日：2017-06-19
Inventor： Yoko Matsubayashi , Hiroshi Yagi , Masanori Shimizu , Yoshio Manabe , Atsushi Motoya , Kazuhiro Matsuo , Toshio Mori
IPC: C09K11/77 , C03C3/00 , F21V3/04 , F21K99/00 , H01L33/50 , F21V3/12 , F21K9/232 , F21K9/64 , F21Y103/10 , F21Y115/10 , F21K9/27
Abstract: An LED lamp provides a strong red color with a natural appearance. The LED lamp is provided with an LED module and a filter. The LED module includes a blue LED with a main emission peak in the 440 nm to 460 nm wavelength band, a green/yellow phosphor that is excited by light emitted by the blue LED, and a red phosphor that is excited by light emitted by at least one of the blue LED and the green/yellow phosphor. The filter reduces the spectral radiation intensity of at least a portion of the 570 nm to 590 nm wavelength band among light emitted by the LED module.
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公开(公告)号：US09544968B2
公开(公告)日：2017-01-10
申请号：US15062432
申请日：2016-03-07
Inventor： Yoko Matsubayashi , Tohru Himeno
IPC: H05B33/08 , F21K99/00 , F21Y113/00
CPC classification number: H05B33/0857 , F21K9/00 , F21K9/278 , F21K9/60 , F21S6/002 , F21V23/005 , F21Y2105/16 , F21Y2113/10 , F21Y2115/10
Abstract: An illumination apparatus includes a first LED, a second LED, and a control unit. The first LED emits white light. The second LED emits white light having a correlated color temperature lower than that of the white light emitted from the first LED and a chromaticity deviation Duv higher than that of the white light emitted from the first LED. The control unit changes a light output ratio of the first LED and the second LED. The first LED emits the white light of the correlated color temperature ranging from 1563K to 4500K and the chromaticity deviation Duv ranging from −1.6 to −12. The second LED emits the white light of the correlated color temperature ranging from 1563K to 4500K and the chromaticity deviation Duv ranging from +10 to −1.6.
Abstract translation: 照明装置包括第一LED，第二LED和控制单元。 第一个LED发出白光。 第二LED发射具有比从第一LED发射的白光的相关色温低的白色光和比从第一LED发射的白光高的色度偏差Duv的色度偏差Duv。 控制单元改变第一LED和第二LED的光输出比。 第一个LED发出相关色温的白光，范围从1563K到4500K，色度偏差Duv在-1.6到-12之间。 第二个LED发出相关色温的白光，范围从1563K到4500K，色度偏差Duv范围从+10到-1.6。
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Patent Agency Ranking
公开(公告)号：US10400970B2
公开(公告)日：2019-09-03
申请号：US15711632
申请日：2017-09-21
Inventor： Hiroko Koiwa , Naoko Takei , Yoko Matsubayashi
IPC: F21V21/10 , F21S41/141 , B60Q1/06 , F21V15/01 , F21S41/125 , F21S41/143 , F21S41/25 , F21S41/663 , F21S41/147 , F21W102/18
Abstract: A vehicle front lamp that emits light forward includes a first light emitter that emits first emission light having a correlated color temperature of at least 3000 K and at most 7000 K, and a second light emitter that emits second emission light having a correlated color temperature of at least 3000 K and at most 7000 K. The chroma value of the first emission light is lower than the chroma value of the second emission light. The chroma value of each of the first emission light and the second emission light is derived by using the calculation method stipulated in The CIE 1997 Interim Color Appearance Model (Simple Version). The second emission light is emitted far ahead and the first emission light is emitted onto a road surface ahead, when the vehicle front lamp is mounted on a vehicle.
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公开(公告)号：US10187954B2
公开(公告)日：2019-01-22
申请号：US15806870
申请日：2017-11-08
Inventor： Yoko Matsubayashi , Kazuki Harada
IPC: F21S8/04 , H05B33/08 , F21V3/00 , F21V19/00 , F21Y103/10 , F21Y115/10 , F21Y113/13
Abstract: A lighting apparatus includes a light emitter that emits a first illumination light as a display illumination light. The optical characteristics of the first illumination light are: a correlated color temperature in a range from 3800 K to 6500 K, inclusive; chromaticity deviation Duv in a range from −9 to 0, inclusive; and an intrinsic photosensitive retinal ganglion cell (ipRGC) stimulus level of at least 0.6, the ipRGC stimulus level being a value standardized by setting an ipRGC stimulus level of light emitted from a D65 light source to 1.
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公开(公告)号：US10172203B2
公开(公告)日：2019-01-01
申请号：US15874454
申请日：2018-01-18
Inventor： Kazuki Harada , Yoko Matsubayashi , Youji Tachino , Makoto Yamada
IPC: H05B37/02 , H05B33/08 , F21V5/00 , F21Y105/18 , F21V3/02 , F21S8/04 , F21V7/22 , F21V19/00 , F21Y115/10
Abstract: A lighting apparatus includes first light emitting elements and second light emitting elements, and a control circuit. The first light emitting elements the second light emitting elements are dispersedly disposed in a predetermined region. The first light emitting elements are more densely disposed in a periphery portion than in a center portion of the predetermined region. The second light emitting elements are more densely disposed in the center portion than in the periphery portion of the predetermined region.
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公开(公告)号：US10455661B2
公开(公告)日：2019-10-22
申请号：US16039431
申请日：2018-07-19
Inventor： Kazuki Harada , Yoko Matsubayashi , Makoto Yamada
IPC: H05B33/08
Abstract: An illumination apparatus includes: a light emitter which emits first illumination light that is illumination light for illuminating a display, wherein the first illumination light has a correlated color temperature in a range from 4000 K to 5800 K, and u′v′ chromaticity coordinates in an XYZ colorimetric system in a range which satisfies 0.7125u′+0.3284
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公开(公告)号：US10364964B2
公开(公告)日：2019-07-30
申请号：US15447804
申请日：2017-03-02
Inventor： Yoko Matsubayashi , Hiroko Koiwa
IPC: F21V13/04 , F21V5/04 , F21V7/00 , F21V21/30 , F21V23/00 , F21S8/04 , F21V19/02 , F21V3/06 , F21Y113/00 , F21K9/20 , F21Y115/10 , F21K9/68
Abstract: A lighting apparatus is provided. The lighting apparatus includes a first light source module and a second light source module surrounding the first light source module. A half beam angle of the first light source module is smaller than a half beam angle of the second light source module. A correlated color temperature of light from the first light source module is higher than a correlated color temperature of light from the second light source module.
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