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21.
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。
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22.
公开(公告)号:US20160327703A1
公开(公告)日:2016-11-10
申请号:US15214523
申请日:2016-07-20
Inventor: TAKU HIRASAWA , YASUHISA INADA , YOSHITAKA NAKAMURA , AKIRA HASHIYA , MITSURU NITTA , TAKEYUKI YAMAKI
CPC classification number: G02B5/1809 , G02B5/1866 , G02B6/0003 , G02B6/0036 , G02B6/0038 , H01L27/156 , H01L33/04 , H01L33/505 , H01L33/507 , H01L33/508 , H01L33/58 , H01L2933/0041 , H01L2933/0058 , H01L2933/0083 , H01L2933/0091
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 including at least two periodic structures. Light emitted from the photoluminescent layer includes first light having a wavelength λa in air and second light having a wavelength λb in air. The at least two periodic structures include a first periodic structure having a first period pa that satisfies 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包括至少两个周期性结构的亚微米结构。 从光致发光层发射的光包括在空气中具有波长λa的第一光和在空气中具有波长λb的第二光。 所述至少两个周期性结构包括具有满足λa/ nwav-a
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23.
公开(公告)号:US20160265747A1
公开(公告)日:2016-09-15
申请号:US15060574
申请日:2016-03-03
Inventor: NOBUAKI NAGAO , TAKU HIRASAWA , YASUHISA INADA , MITSURU NITTA , AKIRA HASHIYA , YASUHIKO ADACHI
CPC classification number: A61B1/00096 , A61B1/0684 , G02B6/0038 , H04N5/2256
Abstract: A light-emitting apparatus includes; a light-emitting device including a photoluminescent layer that receives excitation light and emits light including first light having a wavelength λa in air, and a light-transmissive layer located on or near the photoluminescent layer; and an optical fiber that receives the light from the photoluminescent layer at one end of the optical fiber and emits the received light from the other end thereof. A surface structure is defined on at least one of the photoluminescent layer and the light-transmissive layer, and the surface structure has projections or recesses or both and limits a directional angle of the first light having the wavelength λa in air.
Abstract translation: 发光装置包括: 包括接收激发光并发射包括空气中具有波长λa的第一光的光的光致发光器件的发光器件和位于光致发光层上或附近的透光层; 以及光纤,其在光纤的一端接收来自光致发光层的光,并从其另一端发射接收的光。 表面结构限定在光致发光层和透光层中的至少一个上,并且表面结构具有突起或凹部或两者,并且限制了空气中具有波长λa的第一光的方向角。
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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: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:US20190004393A1
公开(公告)日:2019-01-03
申请号:US16108129
申请日:2018-08-22
Inventor: AKIRA HASHIYA , YASUHISA INADA , TAKU HIRASAWA , YOSHIKAZU YAMAOKA , NOBUAKI NAGAO
Abstract: 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
Inventor: AKIRA HASHIYA , YASUHISA INADA , TAKU HIRASAWA , YOSHIKAZU YAMAOKA , NOBUAKI NAGAO
Abstract: 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:US20180217258A1
公开(公告)日:2018-08-02
申请号:US15840468
申请日:2017-12-13
Inventor: TAKU HIRASAWA , YASUHISA INADA , AKIRA HASHIYA
Abstract: An imaging system includes a light-emitting device, an image sensor, and a control circuit. The light-emitting device includes a light source, a first waveguide that propagates light from the light source by means of total reflection, a second waveguide, and a first adjustment element. The control circuit causes the light source to repeatedly emit light pulses. Further, the control circuit causes at least some of the plurality of photo-detection cells to accumulate the signal charge in synchronization with the emission of the light pulses and thereby causes the image sensor to generate every first period of time a frame based on the signal charge thus accumulated. Furthermore, the control circuit causes the first adjustment element to change the direction of the emitted light from the second waveguide every second period of time that is shorter than or equal to half the first period of time.
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29.
公开(公告)号:US20160327739A1
公开(公告)日:2016-11-10
申请号:US15214803
申请日:2016-07-20
Inventor: YOSHITAKA NAKAMURA , TAKU HIRASAWA , YASUHISA INADA , AKIRA HASHIYA , MITSURU NITTA , TAKEYUKI YAMAKI
CPC classification number: G02B6/124 , F21V9/30 , G02B5/1866 , G02B6/0003 , G02B6/0033 , G02B6/0036 , G02B6/0038 , G02B6/34 , G03B21/204 , H01L2933/0083
Abstract: A light-emitting device according to an embodiment includes a photoluminescent layer, a light-transmissive planarization layer that is in contact with the photoluminescent layer and covers a surface of the photoluminescent layer, and a light-transmissive layer that is located on the planarization layer and comprises a submicron structure. The submicron structure has projections or recesses. Light emitted from the photoluminescent layer includes first light having a wavelength λa in air. A distance Dint between adjacent projections or recesses and a refractive index nwav-a of the photoluminescent layer for the first light satisfy λa/nwav-a
Abstract translation: 根据实施例的发光器件包括光致发光层,与光致发光层接触并覆盖光致发光层的表面的光透射平坦化层和位于平坦化层上的透光层 并且包括亚微米结构。 亚微米结构具有突起或凹陷。 从光致发光层发射的光包括在空气中具有波长λa的第一光。 相邻的凸部或凹部之间的距离Dint和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:US20160327716A1
公开(公告)日:2016-11-10
申请号:US15215595
申请日:2016-07-21
Inventor: YASUHISA INADA , TAKU HIRASAWA , YOSHITAKA NAKAMURA , AKIRA HASHIYA , MITSURU NITTA , TAKEYUKI YAMAKI
IPC: F21V8/00
CPC classification number: G02B6/0003 , F21S2/00 , G02B5/18 , G02B6/00 , G02B6/0038 , G02B6/0055 , H01L27/156 , H01L33/22 , H01L33/46 , H01L33/50
Abstract: A light-emitting device includes a photoluminescent layer, a light-transmissive layer located on the photoluminescent layer, and a multilayer mirror layered together with the photoluminescent layer and the light-transmissive layer. At least one of the photoluminescent layer and the light-transmissive layer has a submicron structure. The submicron structure has at least projections or recesses arranged perpendicular to the thickness direction of the photoluminescent layer. 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,位于光致发光层上的透光层和与光致发光层和透光层一起分层的多层镜。 光致发光层和透光层中的至少一个具有亚微米结构。 亚微米结构至少具有垂直于光致发光层的厚度方向布置的凸起或凹陷。 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
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