-
公开(公告)号：US20200333588A1
公开(公告)日：2020-10-22
申请号：US16901760
申请日：2020-06-15
Inventor： YASUHISA INADA , AKIRA HASHIYA , TAKU HIRASAWA
Abstract: An optical scanning device includes: a first mirror; a second mirror opposed to the first mirror; two non-waveguide regions sandwiched between the first mirror and the second mirror; an optical waveguide region disposed between the two non-waveguide regions; and two intermediate regions. The average refractive index of the optical waveguide region is higher than the average refractive index of each intermediate region. The average refractive index of each intermediate region is higher than the average refractive index of each non-waveguide region. The first mirror allows part of light propagating through the optical waveguide region to be emitted as emission light in a third direction. By changing the refractive index and/or thickness of the optical waveguide region, the third direction, which is the emission direction of the emission light, is changed.
-
公开(公告)号：US20200266604A1
公开(公告)日：2020-08-20
申请号：US16780856
申请日：2020-02-03
Inventor： TAKAHIRO MIYAKE , YASUHISA INADA , TOSIHIKO WADA
Abstract: A mounting structure for an optical module includes a light emitting element, a submount board on which the light emitting element is mounted, a main board on which the submount board is mounted, a light guide member provided on the main board, and a diffraction grating optical coupler provided on the main board and connected to the light guide member. The submount board and the main board are bonded to each other on a surface of the submount board different from a surface on which the light emitting element is mounted.
-
公开(公告)号：US20180224709A1
公开(公告)日：2018-08-09
申请号：US15872962
申请日：2018-01-16
Inventor： YASUHISA INADA , TAKU HIRASAWA
IPC: G02F1/295
CPC classification number: G02F1/295 , G02F2201/34 , G02F2202/10
Abstract: An optical scanning device comprises a waveguide array, a first adjusting element, a plurality of phase shifters, a second adjusting element, and a control circuit. When light emitted from the waveguide array forms a light spot on a virtual plane that is spaced apart from the waveguide array, the control circuit causes the light spot to move in first and second directions such that the distance of movement of the light spot from start to finish of scanning of a target region is greater in first one of the first and second directions than in second one of the first and second directions.
-
公开(公告)号：US20180217482A1
公开(公告)日：2018-08-02
申请号：US15933624
申请日：2018-03-23
Inventor： NOBUAKI NAGAO , MITSURU NITTA , YASUHISA INADA
CPC classification number: G03B21/204 , C09K11/0883 , C09K11/62 , C09K11/7774 , G03B21/2013 , G03B21/2053 , G03B21/2066 , G03B33/00 , G03B33/08 , H01S3/1643 , H01S5/005 , H01S5/3013
Abstract: A projector includes a light source unit, a spatial light modulator configured to control light from the light source unit for each pixel to form an optical image, and a projection optical system configured to project the optical image formed by the spatial light modulator onto a target. The light source unit includes a solid-state light source and a wavelength convertor. 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 contains a red phosphor including Ce as a luminescent center that is configured to emit second light upon receiving the green light. The second light has a spectrum with a peak wavelength of 600 to 700 nm, inclusive. The red phosphor contains a nitride or an oxynitride as a host material.
-
公开(公告)号：US20180212112A1
公开(公告)日：2018-07-26
申请号：US15933455
申请日：2018-03-23
Inventor： MITSURU NITTA , NOBUAKI NAGAO , YASUHISA INADA
CPC classification number: H01L33/504 , H01L27/15 , H01L33/0045 , H01L33/62 , H01L2224/48091 , H01L2224/73265 , H01L2924/00014
Abstract: A light-emitting apparatus includes: a solid-state light source; and a wavelength convertor. The solid-state light source emits first light including green light with a peak wavelength in a range of 480 to 550 nm, inclusive. The wavelength convertor contains a red phosphor including Ce as a luminescent center. The red phosphor 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.
-
Patent Agency Ranking
公开(公告)号：US20180002188A1
公开(公告)日：2018-01-04
申请号：US15636747
申请日：2017-06-29
Inventor： MITSURU NITTA , YASUHISA INADA , NOBUAKI NAGAO
CPC classification number: C01F17/0012 , C01P2002/22 , C01P2002/70 , C01P2002/72 , C01P2002/76 , C01P2002/84 , C09K11/7774 , F21S41/16 , F21S41/176 , F21S41/285 , F21S41/321 , G01N23/20 , G01N2021/6417 , H01S5/005
Abstract: A phosphor contains a crystal phase having a chemical composition CexM3-x-yβ6γ11-z. M is one or more elements selected from the group consisting of Sc, Y, La, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, and Lu. β contains Si in an amount of 50 mol % or more of a total mol of β. γcontains N in an amount of 80 mol % or more N of a total mol of γ. x satisfies 0
-
公开(公告)号：US20170284609A1
公开(公告)日：2017-10-05
申请号：US15446453
申请日：2017-03-01
Inventor： TAKU HIRASAWA , YASUHISA INADA , AKIRA HASHIYA
CPC classification number: F21K9/64 , F21V9/14 , F21V9/30 , F21Y2115/10 , H01L33/505 , H01L33/507 , H01L33/508 , H01L33/54 , H01L33/58
Abstract: A light-emitting device comprises a layered structure between a first layer and a second layer. The first first layer has a refractive index n1 for first light having a wavelength λa in air. The second layer has a refractive index n2 for the first light. The layered structure comprises: a photoluminescent layer having a first surface facing the first layer and a second surface facing the second layer; and a surface structure disposed on at least one selected from the group consisting of the first surface and the second surface of the photoluminescent layer. The refractive index n1 and the refractive index n2 are lower than a refractive index nwav-a of the photoluminescent layer for the first light. The layered structure has an effective thickness to more strongly emit TE polarized light than TM polarized light.
-
78.发明申请LIGHT-EMITTING DEVICE HAVING SURFACE STRUCTURE FOR LIMITING DIRECTIONAL ANGLE OF LIGHT 有权具有限定方向角度的表面结构的发光装置公开(公告)号：US20170054060A1
公开(公告)日：2017-02-23
申请号：US15216669
申请日：2016-07-21
Inventor： AKIRA HASHIYA , TAKU HIRASAWA , YASUHISA INADA
CPC classification number: H01L33/505 , H01L33/44 , H01L33/508
Abstract: A light-emitting device includes; a photoluminescent layer that emits light; and a light-transmissive layer on which the emitted light is to be incident. At least one of the photoluminescent layer and the light-transmissive layer defines a surface structure. The surface structure has projections and/or recesses to limit a directional angle of the emitted light. The photoluminescent layer and the light-transmissive layer are curved.
Abstract translation: 发光装置包括： 发光的光致发光层; 以及发射光入射到其上的透光层。 光致发光层和透光层中的至少一个限定了表面结构。 表面结构具有用于限制发射光的方向角的突起和/或凹部。 光致发光层和透光层是弯曲的。
-
公开(公告)号：US20160359085A1
公开(公告)日：2016-12-08
申请号：US15166123
申请日：2016-05-26
Inventor： YASUHISA INADA , TAKU HIRASAWA
CPC classification number: H01L33/508 , H01L33/44
Abstract: A light-emitting device comprises a photoluminescent layer that emits light including first light in an infrared region; and a light-transmissive layer located on the photoluminescent layer. At least one of the photoluminescent layer and the light-transmissive layer has a periodic structure having projections or recesses or both arranged perpendicular to the 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 of the photoluminescent layer, the first light being emitted from the light emitting surface. A refractive index nwav-a of the photoluminescent layer for the first light and a period pa of the periodic structure satisfy λa/nwav-a
Abstract translation: 发光装置包括发射包括红外区域中的第一光的光的光致发光层; 以及位于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垂直于光致发光层的厚度方向布置的具有突起或凹部或两者的周期性结构。 光致发光层和透光层中的至少一个具有垂直于光致发光层的厚度方向的发光表面，第一光从发光表面发射。 第一光的光致发光层的折射率nwav-a和周期结构的周期pa满足λa/ nwav-a
-
公开(公告)号：US20160327706A1
公开(公告)日：2016-11-10
申请号：US15216686
申请日：2016-07-21
Inventor： TAKU HIRASAWA , YASUHISA INADA , YOSHITAKA NAKAMURA , AKIRA HASHIYA , MITSURU NITTA , TAKEYUKI YAMAKI
CPC classification number: G02B5/1866 , C09K11/7774 , G02B6/0003 , G02B6/0036 , G02B6/0038 , G02B6/124 , G03B21/204 , H01L33/507 , H01L33/508
Abstract: A light-emitting device includes a photoluminescent layer and a light-transmissive layer. At least one of the photoluminescent layer and the light-transmissive layer has a submicron structure having at least projections or recesses. The photoluminescent layer emits light including first light having a wavelength λa in air. The distance Dint between adjacent projections or recesses and the refractive index nwav-a of the photoluminescent layer for the first light satisfy λa/nwav-a
Abstract translation: 发光器件包括光致发光层和透光层。 光致发光层和透光层中的至少一个具有至少具有突起或凹陷的亚微米结构。 光致发光层发射包括在空气中具有波长λa的第一光的光。 相邻的凸部或凹部之间的距离Dint以及第一光的光致发光层的折射率nwav-a满足λa/ nwav-a <λa。 光致发光层的厚度，折射率nwav-a和距离Dint被设定为限制从发光表面发射的第一光的方向角度。 发光装置在光致发光层和透光层中的至少一个上包括第二突起，并且相邻的第二突起之间的距离小于Dint。
-
-
-
-
-
-
-
-
-
Search Results
82
records
(took 0.037 seconds)
