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公开(公告)号:US20150249183A1
公开(公告)日:2015-09-03
申请号:US14618254
申请日:2015-02-10
Inventor: TAKU HIRASAWA , YASUHISA INADA , YOSHITAKA NAKAMURA , AKIRA HASHIYA , MITSURU NITTA , TAKEYUKI YAMAKI
CPC classification number: C09K11/00 , C09K11/7721 , H01L33/508 , H05B33/14
Abstract: A light-emitting device includes a photoluminescent layer that emits light containing first light, a light-transmissive layer located on or near the photoluminescent layer, and one or more reflectors. A submicron structure is defined on at least one of the photoluminescent layer and the light-transmissive layer. The one or more reflector are located outside the submicron structure. The submicron structure includes at least projections or recesses and satisfies the following relationship: λa/nwav-a
Abstract translation: 发光装置包括发射含有第一光的光的光致发光层,位于光致发光层上或附近的透光层,以及一个或多个反射器。 亚微米结构限定在光致发光层和透光层中的至少一个上。 一个或多个反射器位于亚微米结构之外。 亚微米结构至少包括凸起或凹槽,并且满足以下关系:λa/ nwav-a
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公开(公告)号:US20150179977A1
公开(公告)日:2015-06-25
申请号:US14570015
申请日:2014-12-15
Inventor: YASUHISA INADA , TAKU HIRASAWA , MANABU NAKATA
IPC: H01L51/52
CPC classification number: H01L51/5262 , H01L51/5203 , H01L51/5218 , H01L51/5231 , H01L51/5271
Abstract: A light-emitting device includes: a light-emitting element including a transparent electrode, a reflecting electrode, and an organic layer that includes a light-emitting layer; a transparent multilayer body including a low-refractive-index layer and a high-refractive-index layer, the high-refractive-index layer being provided in contact with the transparent electrode; a first uneven structure at an interface between the low-refractive-index layer and the high-refractive-index layer, the first uneven structure including depressions and projections, a height of each of the projections relative to the depressions being 400 nm or more; and a second uneven structure at an interface between the reflecting electrode and the organic layer, the second uneven structure including depressions and projections, a height of each of the projections relative to the depressions in the second uneven structure being 20 nm or more and 100 nm or less.
Abstract translation: 发光装置包括:发光元件,其包括透明电极,反射电极和包括发光层的有机层; 包括低折射率层和高折射率层的透明多层体,所述高折射率层设置成与所述透明电极接触; 在低折射率层和高折射率层之间的界面处的第一不平坦结构,包括凹陷和突起的第一不平坦结构,每个凸起相对于凹陷的高度为400nm以上; 以及在反射电极和有机层之间的界面处的第二不平坦结构,所述第二凹凸结构包括凹陷和突起,每个凸起相对于第二凹凸结构中的凹陷的高度为20nm以上且100nm 或更少。
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公开(公告)号:US20150171373A1
公开(公告)日:2015-06-18
申请号:US14560702
申请日:2014-12-04
Inventor: TAKU HIRASAWA , YASUHISA INADA , AKIRA HASHIYA , YOSHITAKA NAKAMURA
CPC classification number: H01L51/5268 , G02B5/0252 , G02B5/1809 , G02B5/1866 , G02F1/133606 , H01L51/5275
Abstract: An optical sheet includes a light scattering layer that scatters at least a part of light incident thereon by diffraction and that includes first and second areas. Each first area is a projection. Each second area is a recess. Each of at least the projections or the recesses has a tapered shape. When a center wavelength of the light incident on the light scattering layer is λ and a refractive index of a layer that is in contact with the light scattering layer at a light emission side is n, spatial frequency components of a pattern formed by the first and second areas have a maximum peak at a spatial frequency in a range of 0.068/(λ×n) or more and 2.8/(λ×n) or less.
Abstract translation: 光学片包括光散射层,其散射通过衍射入射到其上的光的至少一部分,并且包括第一和第二区域。 每个第一个区域都是一个投影。 每个第二个区域都是一个凹槽。 至少突起或凹部中的每一个具有锥形形状。 当入射到光散射层上的光的中心波长为λ,并且在光出射侧与光散射层接触的层的折射率为n时,由第一和第 第二区域在0.068 /(λ×n)以上且2.8 /(λ×n)以下的范围内的空间频率具有最大峰值。
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公开(公告)号:US20250080825A1
公开(公告)日:2025-03-06
申请号:US18597998
申请日:2024-03-07
Inventor: KENJI NARUMI , YASUHISA INADA , YUMIKO KATO
Abstract: An imaging system includes a sensor that measures a velocity of a moving object, a camera that is different from the sensor and images the object, and a processing circuit that controls the operations of the sensor and the camera, wherein the processing circuit causes the sensor to generate velocity information on the object and measurement timing information on the velocity by causing the sensor to measure the velocity of the object, generates control data, including imaging timing information on the camera, in accordance with (a) position information on the object or distance information on the object at a time of velocity measurement, (b) the velocity information, and (c) the measurement timing information, and causes the camera to output, in response to the control data, image data including image information on the object.
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公开(公告)号:US20240345221A1
公开(公告)日:2024-10-17
申请号:US18755623
申请日:2024-06-26
Inventor: HIROYUKI TAKAGI , YASUHISA INADA , KAZUYA HISADA , YUMIKO KATO , KENJI NARUMI , KOHEI KIKUCHI
CPC classification number: G01S7/4812 , G01S17/58
Abstract: A measurement device includes: a light source; an interference optical system that separates light into reference light and irradiation light and causes reflected light and the reference light to interfere with each other to generate interference light; an optical element that emits the irradiation light and receives the reflected light; and a photodetector that detects the interference light. The interference optical system includes a beam splitter. The measurement device satisfies d1≤d2+d3 and d2+d3−d1|≥|d4−d1| where d1 is an optical path length from the beam splitter to the photodetector, d2 is an optical path length from the beam splitter to the optical element, d3 is an optical path length from the optical element to the photodetector, and d4 is an optical path length from the beam splitter to the photodetector via a noise light path inside the interference optical system.
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公开(公告)号:US20240004044A1
公开(公告)日:2024-01-04
申请号:US18468718
申请日:2023-09-17
Inventor: AKIRA HASHIYA , YUMIKO KATO , KAZUYA HISADA , YASUHISA INADA
IPC: G01S7/4912 , G01S17/58 , G01S17/34
CPC classification number: G01S7/4917 , G01S17/58 , G01S17/34
Abstract: A measurement apparatus includes a light source, a calibrating optical system, an interference optical system, a photosensitive device, a storage device, and a processing circuit. The interference optical system separates the light into reference light and output light and generates first interfering light and second interfering light. The photosensitive device outputs a first detection signal corresponding to an intensity of the first interfering light and a second detection signal corresponding to an intensity of the second interfering light. The processing circuit sends out, to the light source, a control signal that sweeps a frequency of the light that is emitted from the light source, updates, on the basis of the second detection signal, the correcting data stored in the storage device, and generates measurement data on the basis of the correcting data thus updated and the first detection signal.
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公开(公告)号:US20230087964A1
公开(公告)日:2023-03-23
申请号:US18058911
申请日:2022-11-28
Inventor: TASUKU NAKAMURA , YASUHISA INADA
Abstract: A dual optical frequency comb generator incudes a semiconductor substrate, a first optical frequency comb laser light source including a first resonator, a second optical frequency comb laser light source including a second resonator and differing in repetition frequency of optical pulses from the first optical frequency comb laser light source, two or more outputters including first and second outputters, a first optical waveguide connecting the first optical frequency comb laser light source with the first outputter, a second optical waveguide connecting the second optical frequency comb laser light source with the second outputter, and a third optical waveguide that branches off from the first optical waveguide and joins the second optical waveguide. The first optical frequency comb laser light source, the second optical frequency comb laser light source, the two or more outputters, and the optical waveguides are integrated on the semiconductor substrate.
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公开(公告)号:US20220206155A1
公开(公告)日:2022-06-30
申请号:US17695736
申请日:2022-03-15
Inventor: YASUHISA INADA , TOKUZOU KIYOHARA , YUMIKO KATO
IPC: G01S17/89 , G01S17/42 , G01S7/4861 , G01S7/484 , G01S7/486
Abstract: A ranging apparatus includes a light emitting apparatus, a light receiving apparatus, and a processing circuit that controls the light emitting apparatus and the light receiving apparatus. The processing circuit causes the light emitting apparatus to emit first light that illuminates a first range in a scene, causes the light receiving apparatus to detect first reflected light produced by illumination with the first light and output first detection data, determines, on the basis of the first detection data, one or more second ranges that are narrower than the first range, causes the light emitting apparatus to emit second light that illuminates the second ranges, causes the light receiving apparatus to detect second reflected light produced by illumination with the second light and output second detection data, and generates and outputs distance data on the second regions on the basis of the second detection data.
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公开(公告)号:US20220019022A1
公开(公告)日:2022-01-20
申请号:US17488391
申请日:2021-09-29
Inventor: AKIRA HASHIYA , YASUHISA INADA , MASANORI ERA
Abstract: An optical device includes a first mirror having a first reflecting surface and extending along a first direction, a second mirror having a second reflecting surface that faces the first reflecting surface and extending along the first direction, and an optical waveguide layer, located between the first mirror and the second mirror, that causes light to propagate along the first direction. A transmittance of the first mirror is higher than a transmittance of the second mirror. A reflection spectrum of at least either the first mirror or the second mirror with respect to light arriving from a direction normal to the reflecting surface includes, in a wavelength region in which a reflectance is higher than or equal to 90%, a local maximum point and first and second points of inflection located closer to a long-wavelength side than the local maximum point.
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公开(公告)号:US20210399148A1
公开(公告)日:2021-12-23
申请号:US17463637
申请日:2021-09-01
Inventor: SHINYA OKAMOTO , ATSUSHI ISHIKAWA , YASUHISA INADA
IPC: H01L31/0232 , H01L31/0352 , H01L31/0224
Abstract: An optical device includes a nanostructure body which induces surface plasmon resonance when irradiated with light, an alloy layer which is in contact with the nanostructure body and which has a lower work function than the nanostructure body, and an n-type semiconductor which is in Schottky contact with the alloy layer. The nanostructure body is composed of one selected from the group consisting of elemental metals, alloys, metal nitrides, and conductive oxides. The alloy layer is composed of at least two metals.
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