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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
Inventor： TAKU HIRASAWA , YASUHISA INADA , AKIRA HASHIYA , NOBUAKI NAGAO , AKIRA TSUJIMOTO
CPC classification number: F21K9/64 , F21V5/04 , F21V9/30 , F21Y2115/10 , F21Y2115/30
Abstract: 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.
Abstract translation: 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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公开(公告)号：US20160359091A1
公开(公告)日：2016-12-08
申请号：US15169771
申请日：2016-06-01
Inventor： AKIRA HASHIYA , TAKU HIRASAWA , YASUHISA INADA , MIKIKO MATSUO
CPC classification number: H01L33/508 , H01L33/44
Abstract: A light-emitting apparatus comprising a photoluminescent layer that emits light in response to excitation light and has a light-emitting surface, the light from the photoluminescent layer being emitted through the light-emitting surface. The light-emitting surface includes a first region and a second region. The light from the photoluminescent layer includes first light having a wavelength λa in air. The first light emitted through the first region has a smaller directional angle than the first light emitted through the second region.
Abstract translation: 一种发光装置，包括响应于激发光发光并具有发光表面的光致发光层，来自光致发光层的光通过发光表面发射。 发光面包括第一区域和第二区域。 来自光致发光层的光包括在空气中具有波长λa的第一光。 通过第一区域发射的第一光具有比通过第二区域发射的第一光更小的方向角度。
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公开(公告)号：US20160265749A1
公开(公告)日：2016-09-15
申请号：US15060583
申请日：2016-03-03
Inventor： YASUHISA INADA
CPC classification number: F21V9/30 , F21V9/00 , F21V14/02 , G01N21/59 , G01N2201/105 , G03B21/204
Abstract: a light-emitting device including: a photoluminescent layer that contains a photoluminescent material and emits light including first light having a wavelength λa in air; and a light-transmissive layer located on or near the photoluminescent layer. At least one periodic structure is defined on at least one of the photoluminescent layer and the light-transmissive layer. The at least one periodic structure has projections or recesses or both. A distance Dint between two adjacent projections or two adjacent recesses and a refractive index nwav-a of the photoluminescent layer for the first light satisfy λa/nwav-a
Abstract translation: 发光装置，包括：含有光致发光材料并发射包括空气中波长λa的第一光的光的光致发光层; 以及位于光致发光层上或附近的透光层。 在光致发光层和透光层中的至少一个上限定至少一个周期性结构。 所述至少一个周期性结构具有突起或凹槽或两者。 在两个相邻的突起或两个相邻凹部之间的距离Dint和用于第一光的光致发光层的折射率nwav-a满足λa/ nwav-a
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公开(公告)号：US20250096516A1
公开(公告)日：2025-03-20
申请号：US18964752
申请日：2024-12-02
Inventor： TASUKU NAKAMURA , SHINYA OKAMOTO , KAZUYA HISADA , YASUHISA INADA , KATSUYA NOZAWA
Abstract: A laser device includes a first optical comb laser, a second optical comb laser having a repetition frequency different from the first optical comb laser, a detection unit that detects interfering light between light output from the first optical comb laser and light output from the second optical comb laser and a control circuit. The control circuit controls at least one of a first CEO frequency, which is a carrier-envelope offset frequency of the first optical comb laser, or a second CEO frequency, which is a carrier-envelope offset frequency of the second optical comb laser, on the basis of output of the detection unit and thus changes a difference frequency, which is a difference between the first CEO frequency and the second CEO frequency.
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公开(公告)号：US20230273501A1
公开(公告)日：2023-08-31
申请号：US18313416
申请日：2023-05-08
Inventor： MASAHIKO TSUKUDA , AKIRA HASHIYA , KAZUKI NAKAMURA , YASUHISA INADA
CPC classification number: G02F1/295 , G02F1/1326 , G02F1/0142 , G02F1/0113
Abstract: An optical device includes a plurality of optical waveguide units arranged in a first direction. Each of the optical waveguide units includes a first mirror having a first reflecting surface, a second mirror having a second reflecting surface facing the first reflecting surface, and at least one optical waveguide region located between the first mirror and the second mirror. The distance between the first reflecting surface and the second reflecting surface is different for each of the optical waveguide units.
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Patent Agency Ranking
公开(公告)号：US20230185118A1
公开(公告)日：2023-06-15
申请号：US18163277
申请日：2023-02-01
Inventor： TAKAIKI NOMURA , KAZUKI NAKAMURA , YASUHISA INADA
IPC: G02F1/03 , G02F1/01 , G02F1/1333 , G02F1/1335
CPC classification number: G02F1/0311 , G02F1/0115 , G02F1/133371 , G02F1/133555
Abstract: An optical device includes a first structure body with a first surface, a second structure body with a second surface facing the first surface, one or more optical guide regions positioned between the first surface of the first structure body and the second surface of the second structure body, the one or more optical guide regions including a liquid crystal material, and a first alignment film disposed on the first surface and aligning the liquid crystal material, the first alignment film being a rubbing alignment film, wherein the optical device further includes a second alignment film that is an optical alignment film formed by irradiation with polarized light.
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公开(公告)号：US20230003895A1
公开(公告)日：2023-01-05
申请号：US17931146
申请日：2022-09-12
Inventor： YUMIKO KATO , YASUHISA INADA , KENJI NARUMI , KAZUYA HISADA
IPC: G01S17/894 , G01S17/931 , G06T7/521 , G06T7/579
Abstract: A method for controlling a distance measurement apparatus including a light emitting device capable of changing a direction of emission of a light beam and a light receiving device that detects a reflected light beam includes acquiring data representing a plurality of images acquired at different points in time by an image sensor that acquires an image of a scene, determining, on the basis of the data representing the plurality of images, a degree of priority of distance measurement of one or more physical objects included in the plurality of images, and executing distance measurement of the one or more physical objects by causing the light emitting device to emit the light beam in a direction corresponding to the degree of priority and in an order corresponding to the degree of priority and causing the light receiving device to detect the reflected light beam.
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公开(公告)号：US20220102930A1
公开(公告)日：2022-03-31
申请号：US17546153
申请日：2021-12-09
Inventor： TASUKU NAKAMURA , YASUHISA INADA
Abstract: A dual optical frequency comb light-emitting device includes a first optical-frequency-comb laser source that includes a first laser resonator having a first optical path length, a second optical-frequency-comb laser source that includes a second laser resonator having a second optical path length different from the first optical path length, and an optical coupler that causes a first portion of first optical-frequency-comb laser light emitted from the first laser resonator to enter the second laser resonator. The first optical-frequency-comb laser source outputs a second portion of the first optical-frequency-comb laser light to an outside. The second optical-frequency-comb laser source outputs second optical-frequency-comb laser light emitted from the second laser resonator to the outside.
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公开(公告)号：US20220011404A1
公开(公告)日：2022-01-13
申请号：US17483643
申请日：2021-09-23
Inventor： TAKAIKI NOMURA , MASAHIKO TSUKUDA , YASUHISA INADA
Abstract: An optical device includes a first substrate having a first surface, a second substrate having a second surface, at least one optical waveguide, and a plurality of spacers, disposed on at least either the first surface or the second surface, that include a first portion and a second portion. The first portion of the plurality of elastic spacers is at least one elastic spacer located in a region between the first substrate and the second substrate in which the first substrate and the second substrate overlap each other as seen from an angle parallel with a direction perpendicular to the first surface. The second portion of the plurality of elastic spacers is at least one elastic spacer located in a region in which the first substrate and the second substrate do not overlap each other as seen from an angle parallel with the direction perpendicular to the first surface.
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公开(公告)号：US20210405289A1
公开(公告)日：2021-12-30
申请号：US17471687
申请日：2021-09-10
Inventor： KAZUKI NAKAMURA , YASUHISA INADA
Abstract: An optical device includes a first waveguide extending in a first direction and a second waveguide connected to the first waveguide. The second waveguide includes a first mirror, a second mirror, and an optical waveguide layer. At least either the first waveguide or the second waveguide has one or more gratings in a part of a connection region in which the first mirror, the second mirror, and the first waveguide overlap one another when seen from an angle parallel with a direction perpendicular to a first reflecting surface of the first mirror. The one or more gratings is at a distance that is longer than at least either a thickness of the first mirror or a thickness of the second mirror in the first direction from an end of the first mirror or the second mirror that is in the connection region.
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