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公开(公告)号:US20180153018A1
公开(公告)日:2018-05-31
申请号:US15806870
申请日:2017-11-08
Inventor: Yoko MATSUBAYASHI , Kazuki HARADA
CPC classification number: H05B33/0872 , F21S8/04 , F21V3/00 , F21V19/0015 , F21V19/003 , F21Y2103/10 , F21Y2113/13 , F21Y2115/10 , H05B33/0854
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:US20170257922A1
公开(公告)日:2017-09-07
申请号:US15447760
申请日:2017-03-02
Inventor: Yoko MATSUBAYASHI , Tohru HIMENO , Hiroko KOIWA , Naoko TAKEI , Makoto YAMADA
CPC classification number: H05B33/0857 , F21S8/04 , F21V3/00 , F21V3/02 , F21V21/03 , F21V23/003 , F21V23/02 , F21Y2105/18 , F21Y2113/13 , F21Y2115/10 , H05B33/0821
Abstract: A lighting apparatus includes first light emitting elements and second light emitting elements having chromaticity values in a same chromaticity range. A ratio of a greatest value of a spectral distribution of combined light in a range of 500 nm to 560 nm inclusive to a smallest value of the spectral distribution of the combined light in a range of 500 nm to 650 nm inclusive is 0.85 or less. The combined light is a combination of light emitted by the first light emitting elements and light emitted by the second light emitting elements.
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公开(公告)号:US20170254487A1
公开(公告)日:2017-09-07
申请号:US15447706
申请日:2017-03-02
Inventor: Yoko MATSUBAYASHI , Tohru HIMENO , Hiroko KOIWA
CPC classification number: F21K9/61 , F21S8/04 , F21V3/00 , F21V3/0625 , F21V19/001 , F21V23/003 , F21Y2105/12 , F21Y2105/18 , F21Y2113/00 , F21Y2113/13 , F21Y2115/10 , G02B6/0031 , G02B6/0046
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:US20180087731A1
公开(公告)日:2018-03-29
申请号:US15711632
申请日:2017-09-21
Inventor: Hiroko KOIWA , Naoko TAKEI , Yoko MATSUBAYASHI
CPC classification number: F21S41/141 , B60Q1/06 , F21S41/125 , F21S41/143 , F21S41/147 , F21S41/25 , F21S41/663 , F21V15/01 , F21W2102/18
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:US20160270180A1
公开(公告)日:2016-09-15
申请号:US15062432
申请日:2016-03-07
Inventor: Yoko MATSUBAYASHI , Tohru HIMENO
IPC: H05B33/08
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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公开(公告)号:US20150342696A1
公开(公告)日:2015-12-03
申请号:US14718716
申请日:2015-05-21
Inventor: Tohru HIMENO , Kenji MUKAI , Yoko MATSUBAYASHI , Naoko TAKEI
CPC classification number: A61B90/30
Abstract: An illumination apparatus includes a light emitting unit configured to emit illumination light including a first light having a first peak wavelength of a first peak in a first wavelength range of 495 nm to 510 nm and a second light having a second peak wavelength of a second peak in a second wavelength range of 610 nm to 680 nm. In the illumination apparatus, an intensity of the second light at the second peak wavelength is higher than an intensity of the first light at the first peak wavelength.
Abstract translation: 一种照明装置,包括:发光单元,被配置为发射包括第一光的第一光的照明光,所述第一光具有在495nm至510nm的第一波长范围中的第一峰值的第一峰值波长和具有第二峰值的第二峰值波长的第二光 在610nm至680nm的第二波长范围内。 在照明装置中,第二峰值波长处的第二光的强度高于第一峰值波长的第一光的强度。
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公开(公告)号:US20190037654A1
公开(公告)日:2019-01-31
申请号:US16039431
申请日:2018-07-19
Inventor: Kazuki HARADA , Yoko MATSUBAYASHI , Makoto YAMADA
IPC: H05B33/08
CPC classification number: H05B33/086 , H05B33/0872
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:US20180213624A1
公开(公告)日:2018-07-26
申请号:US15873398
申请日:2018-01-17
Inventor: Yoko MATSUBAYASHI , Kazuki HARADA , Youji TACHINO , Makoto YAMADA
IPC: H05B33/08
CPC classification number: H05B33/0863 , F21K9/66 , F21S8/04 , F21V3/02 , F21V3/0625 , F21V15/01 , F21Y2105/18 , F21Y2113/13 , F21Y2115/10
Abstract: A lighting apparatus includes: first light emitting elements; second light emitting elements having chromaticity values in a same chromaticity range as the first light emitting elements; and a control circuit including a mode switch for controlling the first light emitting elements and the second light emitting elements separately. The control circuit selectively executes a first mode which causes the first light emitting elements to emit light and a second mode which causes the first light emitting elements and the second light emitting elements to emit light. The mode switch switches between the first mode and the second mode.
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公开(公告)号:US20180029532A1
公开(公告)日:2018-02-01
申请号:US15657956
申请日:2017-07-24
Inventor: Junichi HASEGAWA , Makoto YAMADA , Yoko MATSUBAYASHI , Ayako TSUKITANI
CPC classification number: B60Q3/47 , B60Q3/44 , B64D11/00 , B64D2011/0053 , B64D2203/00 , F21S8/033
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:US20170254511A1
公开(公告)日:2017-09-07
申请号:US15447804
申请日:2017-03-02
Inventor: Yoko MATSUBAYASHI , Hiroko KOIWA
CPC classification number: F21V13/04 , F21K9/20 , F21K9/68 , F21S8/04 , F21V3/062 , F21V5/04 , F21V7/00 , F21V19/02 , F21V21/30 , F21V23/003 , F21Y2113/00 , F21Y2115/10
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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