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公开(公告)号：US20190177614A1
公开(公告)日：2019-06-13
申请号：US16169455
申请日：2018-10-24
发明人： NOBUAKI NAGAO , MITSURU NITTA
摘要： A phosphor includes a crystal phase with a chemical composition (LuxY1-x)yM3-y-zCezβpγq. M denotes one or more elements selected from the group consisting of La, Sc, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, and Yb. β contains Si, which constitutes 90% or more by mole of β. γ contains N, which constitutes 90% or more by mole of γ. The variables x, y, z, p, and q satisfy 0
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公开(公告)号：US20180216002A1
公开(公告)日：2018-08-02
申请号：US15933606
申请日：2018-03-23
发明人： NOBUAKI NAGAO , MITSURU NITTA , YASUHISA INADA
IPC分类号： C09K11/77 , C09K11/62 , C09K11/08 , A61B1/06 , A61B1/07 , H04N5/225 , H04N9/04 , F21V8/00 , H01S5/00 , H01S5/30 , H01S3/16 , H01S5/022 , H01S3/23 , H01S3/00
CPC分类号： C09K11/7774 , A61B1/0653 , A61B1/0684 , A61B1/07 , C09K11/0883 , C09K11/62 , F21V9/30 , F21W2131/105 , G02B6/0006 , G02B6/0008 , H01S3/005 , H01S3/1611 , H01S3/1643 , H01S3/23 , H01S5/005 , H01S5/02284 , H01S5/02288 , H01S5/3013 , H04N5/2256 , H04N9/045 , H04N2005/2255
摘要： A fiber light source includes a solid-state light source, a wavelength convertor, and an optical fiber. The solid-state light source is configured to emit first light, the first light including blue light with a peak wavelength in a range of 430 to 470 nm, inclusive, and green light with a peak wavelength in a range of 480 to 550 nm, inclusive. The wavelength convertor is disposed on the light output side or the light incident side of the optical fiber and contains a red phosphor. The red phosphor includes Ce as a luminescent center, and is excited by at least part of the green light to emit second light. The second light has a spectrum with a peak wavelength in a range of 600 to 700 nm, inclusive. The red phosphor contains a nitride or an oxynitride as a host material.
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公开(公告)号：US20200003873A1
公开(公告)日：2020-01-02
申请号：US16568247
申请日：2019-09-12
摘要： An optical scanning device includes: first and second mirrors; an optical waveguide layer disposed between the first and second mirrors; a pair of electrodes sandwiching the optical waveguide layer; and a driving circuit that applies a voltage to the pair of electrodes. The first mirror has a higher light transmittance than the second mirror and emits part of light propagating through the optical waveguide layer to the outside. The optical waveguide layer contains a liquid crystal material or an electrooptical material. The alignment direction of the liquid crystal material or the direction of a polarization axis of the electrooptical material is parallel or perpendicular to the direction in which the optical waveguide layer extends. The driving circuit applies the voltage to the pair of electrodes to change the refractive index of the liquid crystal material or the electrooptical material to thereby change the light emission direction.
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公开(公告)号：US20190233727A1
公开(公告)日：2019-08-01
申请号：US16190495
申请日：2018-11-14
发明人： MITSURU NITTA , NOBUAKI NAGAO , YASUHISA INADA
摘要： A phosphor comprises a crystal phase with a chemical composition (Lu1-p-q, Cep, Mq)xβyγzO. M denotes one or more elements selected from the group consisting of Y, La, Sc, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, and Yb. β contains Si, which constitutes 90% or more by mole of β. γ contains N, which constitutes 90% or more by mole of γ. The variables x, y, z, p, and q satisfy 5.5≤x≤6.5, 10.5≤y≤11.5, 19.5≤z≤20.5, 0
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公开(公告)号：US20190004393A1
公开(公告)日：2019-01-03
申请号：US16108129
申请日：2018-08-22
摘要： An optical scanning device includes: a first waveguide that propagates light by total reflection; and a second waveguide. The second waveguide includes: a first multilayer reflective film; a second multilayer reflective film that faces the first multilayer reflective film; and a first optical waveguide layer directly connected to the first waveguide and located between the first and second multilayer reflective films. The first optical waveguide layer has a variable thickness and/or a variable refractive index and propagates the light transmitted through the first waveguide. The first multilayer reflective film has a higher light transmittance than the second multilayer reflective film and allows part of the light propagating through the first optical waveguide layer to be emitted to the outside. By changing the thickness of the first optical waveguide layer and/or its refractive index, the direction of the part of the light emitted from the second waveguide is changed.
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公开(公告)号：US20180372951A1
公开(公告)日：2018-12-27
申请号：US16116499
申请日：2018-08-29
摘要： An optical scanning device includes a waveguide array including a plurality of waveguides arranged in a first direction. Each waveguide includes: an optical waveguide layer that propagates light supplied to the waveguide in a second direction intersecting the first direction; a first mirror having a first reflecting surface intersecting a third direction; and a second mirror having a second reflecting surface that faces the first reflecting surface. The optical waveguide layer is located between the first and second mirrors and has a variable thickness and/or a variable refractive index for the light. The width of the first mirror and the width of the second mirror are each larger than the width of the optical waveguide layer. The first mirror has a higher light transmittance than the second mirror and allows part of the light propagating through the optical waveguide layer to be emitted in the third direction.
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公开(公告)号：US20160300704A1
公开(公告)日：2016-10-13
申请号：US15073613
申请日：2016-03-17
发明人： TAKEHIRO ZUKAWA , YOSHIKI SASAKI , NOBUAKI NAGAO
CPC分类号： H01J61/44 , H01J9/268 , H01J9/395 , H01J9/40 , H01J61/0672 , H01J61/14 , H01J61/16 , H01J61/305 , H01J61/35 , H01J65/00
摘要： An ultraviolet light emitting device comprises: a first substrate having a main surface; a second substrate facing the main surface of the first substrate; a gas in a space between the first substrate and the second substrate; electrodes directly or indirectly on the main surface of the first substrate; a dielectric layer that is located directly or indirectly on the main surface of the first substrate and covers the electrodes; and a first light-emitting layer. The first light-emitting layer is located directly or indirectly on the dielectric layer and emits ultraviolet light in the gas due to electrical discharge between the electrodes. The first light-emitting layer is thicker in first regions on the dielectric layer than in second regions. The second regions include at least part of regions directly above the electrodes.
摘要翻译： 一种紫外线发射器件，包括：具有主表面的第一衬底; 面向第一基板的主表面的第二基板; 第一基板和第二基板之间的空间中的气体; 电极直接或间接地在第一基底的主表面上; 介电层，其直接或间接地位于第一基板的主表面上并覆盖电极; 和第一发光层。 第一发光层直接或间接地位于电介质层上，并由于电极之间的放电而在气体中发射紫外光。 第一发光层在电介质层上的第一区域比在第二区域更厚。 第二区域包括电极正上方的至少部分区域。
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公开(公告)号：US20180346808A1
公开(公告)日：2018-12-06
申请号：US15987213
申请日：2018-05-23
发明人： MITSURU NITTA , NOBUAKI NAGAO
CPC分类号： C09K11/7769
摘要： A phosphor comprises a crystal phase that has a chemical composition of (Y1-x-y,Cex,Lay)αSiβ-zAlzNγO, where the α satisfies 5.5≤α≤6.5, the β satisfies 9.5≤β≤12.5, the γ satisfies 17.5≤γ≤22.5, the x satisfies 0
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公开(公告)号：US20180038575A1
公开(公告)日：2018-02-08
申请号：US15723240
申请日：2017-10-03
发明人： NOBUAKI NAGAO , MITSURU NITTA , YASUHISA INADA
CPC分类号： F21V9/30 , C09K11/7774 , F21K9/60 , F21Y2113/17 , F21Y2115/10 , H01L33/50 , H01S5/005 , H01S5/02212
摘要： The phosphor according to an aspect of the present disclosure contains a crystal phase having a chemical composition CexYyLa3-x-ySi6N11, where x and y satisfy 0
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公开(公告)号：US20170051885A1
公开(公告)日：2017-02-23
申请号：US15206273
申请日：2016-07-10
发明人： TAKU HIRASAWA , YASUHISA INADA , AKIRA HASHIYA , NOBUAKI NAGAO , AKIRA TSUJIMOTO
CPC分类号： F21K9/64 , F21V5/04 , F21V9/30 , F21Y2115/10 , F21Y2115/30
摘要： A light-emitting apparatus includes an excitation light source that emits first light; a light-emitting device on an optical path of the first light, the light-emitting device emitting second light having a wavelength in air; and a first converging lens on an optical path of the second light. The light-emitting device comprises: a photoluminescent layer that emits the second light by being excited by the first light; and a light-transmissive layer on the photoluminescent layer. At least one of the photoluminescent layer and the light-transmissive layer has a surface structure comprising projections or recesses arranged perpendicular to a thickness direction of the photoluminescent layer. At least one of the photoluminescent layer and the light-transmissive layer has a light emitting surface perpendicular to the thickness direction, the second light emitted from the light emitting surface. The surface structure limits the directional angle of the second light emittied from the light emitting surface.
摘要翻译： 发光装置包括发射第一光的激发光源; 在所述第一光的光路上的发光装置，所述发光装置发射在空气中具有波长的第二光; 以及在第二光的光路上的第一会聚透镜。 发光装置包括：通过被第一光激发而发射第二光的光致发光层; 和光致发光层上的透光层。 光致发光层和透光层中的至少一个具有包括垂直于光致发光层的厚度方向布置的突起或凹陷的表面结构。 光致发光层和透光层中的至少一个具有垂直于厚度方向的发光表面，从发光表面发射的第二光。 表面结构限制从发光表面发射的第二光的方向角。
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