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11.发明授权Light capturing sheet, light capturing rod, light receiving device using light capturing sheet or light capturing rod, light emitting device using light capturing sheet or light capturing rod, and optical-fiber amplifier using light capturing sheet or light capturing rod 有权光捕获片，光捕获棒，使用光捕获片或光捕获杆的光接收装置，使用光捕获片或光捕获杆的发光装置，以及使用光捕获片或光捕获棒的光纤放大器公开(公告)号：US09494742B2
公开(公告)日：2016-11-15
申请号：US14630275
申请日：2015-02-24
Inventor： Seiji Nishiwaki
IPC: G02B6/124 , G02B6/34 , H01L31/054 , G02B5/18 , G01J1/04 , F21V8/00 , H01S3/094 , H02S40/20 , H01S3/067
CPC classification number: G02B6/34 , G01J1/0407 , G02B5/1809 , G02B5/1819 , G02B5/1823 , G02B5/1842 , G02B6/0006 , G02B6/0016 , H01L31/054 , H01S3/067 , H01S3/06754 , H01S3/094019 , H02S40/20 , Y02E10/52
Abstract: A light capturing sheet includes a light transmitting sheet and a plurality of optical coupling structures disposed therein. The optical coupling structures each include a first light-transmitting layer, a second light-transmitting layer, a third light-transmitting layer interposed therebetween, and a diffraction grating. Refractive indices of the first and second light-transmitting layers are lower than a refractive index of the light transmitting sheet, and a refractive index of the third light-transmitting layer is higher than the refractive indices of the first and second light-transmitting layers. The optical coupling structures are arranged in first and second directions in a plane parallel to principal surfaces of the light transmitting sheet, and in a third direction not parallel thereto.
Abstract translation: 光捕获片包括透光片和设置在其中的多个光耦合结构。 光耦合结构各自包括第一透光层，第二透光层，插入其间的第三透光层和衍射光栅。 第一和第二透光层的折射率低于透光片的折射率，并且第三透光层的折射率高于第一透光层和第二透光层的折射率。 光耦合结构在与透光片的主表面平行的平面中的第一和第二方向上布置，并且在不与其平行的第三方向上布置。
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公开(公告)号：US11067451B2
公开(公告)日：2021-07-20
申请号：US15828573
申请日：2017-12-01
Inventor： Seiji Nishiwaki , Kenji Narumi , Yasuhiko Adachi
IPC: H01L27/00 , G01J5/08 , G01B9/02 , H01L27/146 , G01J1/04 , A61B5/1455 , G01N21/27 , G01N21/17 , G01N21/45 , G01J9/00 , G01N21/47
Abstract: A photo-detection system includes: a photo-detection apparatus including a light-shielding film, an optically-coupled layer, and a photodetector including first and second photo-detection cells; and an arithmetic circuit that generates, based on first signals and second signals, third signals each representing coherence of light having entered a position of each of the first and second photo-detection cells and generates at least one selected from the group consisting of an average value of the third signals, a standard deviation of the third signals, a ratio between the standard deviation and the average value, and a ratio between an average value of a first portion of the third signals based on light having entered the positions of the first photo-detection cells and an average value of a second portion of the third signals based on light having entered the positions of the second photo-detection cells.
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公开(公告)号：US20200243597A1
公开(公告)日：2020-07-30
申请号：US16847704
申请日：2020-04-14
Inventor： Kosaku Saeki , Seiji Nishiwaki , Kenji Narumi
IPC: H01L27/146 , G01J3/10 , G01J3/28
Abstract: A structural body includes a first dielectric layer and a second dielectric layer which is in contact with the first dielectric layer and which has a refractive index different from that of the first dielectric layer. The second dielectric layer includes at least two dielectric films different in hydrogen concentration from each other. The interface between the first dielectric layer and the second dielectric layer has periodic first irregularities.
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公开(公告)号：US11450706B2
公开(公告)日：2022-09-20
申请号：US16847704
申请日：2020-04-14
Inventor： Kosaku Saeki , Seiji Nishiwaki , Kenji Narumi
IPC: H01L27/146 , G01J3/10 , G01J3/28
Abstract: A structural body includes a first dielectric layer and a second dielectric layer which is in contact with the first dielectric layer and which has a refractive index different from that of the first dielectric layer. The second dielectric layer includes at least two dielectric films different in hydrogen concentration from each other. The interface between the first dielectric layer and the second dielectric layer has periodic first irregularities.
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Patent Agency Ranking
公开(公告)号：US10605586B2
公开(公告)日：2020-03-31
申请号：US15825041
申请日：2017-11-28
Inventor： Seiji Nishiwaki , Kenji Narumi , Yasuhiko Adachi
IPC: G01B9/02 , H01L27/146 , G01J1/04
Abstract: A photo-detection apparatus includes a light-shielding film, an optically-coupled layer, a photodetector, and an optical system. In the light-shielding film, light-transmitting regions and light-shielding regions are alternately arranged in at least a first direction within a plane. The optically-coupled layer faces the light-shielding film and includes a grating that propagates light in the first direction. The photodetector includes first photo-detection cells and second photo-detection cells arranged on an imaging area. The optical system is disposed between the optically-coupled layer and the photodetector. An image of light transmitted by parts of the optically-coupled layer that face each of the light-transmitting regions and light-shielding regions is enlarged or reduced by the optical system and formed on a corresponding one of the first and second photo-detection cells.
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16.发明授权公开(公告)号：US10412319B2
公开(公告)日：2019-09-10
申请号：US15806050
申请日：2017-11-07
Inventor： Kenji Narumi , Seiji Nishiwaki
IPC: G01J9/00 , G01J9/02 , G03B5/06 , G03B5/08 , G06K9/46 , G03B11/04 , H04N5/225 , H04N5/232 , H04N5/265 , H01L27/146
Abstract: An imaging apparatus includes an image sensor, an optical system, a control circuit, and a signal processing circuit. The image sensor includes a light-shielding film in which light-transmitting regions and light-shielding regions are alternately arranged in at least a first direction within a plane, a photodetector disposed opposite the light-shielding film, and an optically-coupled layer disposed between the light-shielding film and the photodetector. The optically-coupled layer includes a grating which generates a propagating light that propagates in the first direction and a transmitting light that transmits the optically-coupled layer when light of a predetermined wavelength enters the light-transmitting regions. The signal processing circuit extracts two different frames from frames included in a moving image acquired by the image sensor.
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公开(公告)号：US10190872B2
公开(公告)日：2019-01-29
申请号：US16107872
申请日：2018-08-21
Inventor： Kenji Narumi , Teruhiro Shiono , Seiji Nishiwaki
Abstract: A photodetection device including an image sensor that includes first pixels and second pixels; an interference element that includes incident regions; and illumination that emits light in a first wavelength band and a second wavelength band. The interference element causes first interference of light in the first wavelength band incident on two incident regions, and guides resultant light of the first interference to any of the first pixels and guides another part of the light in the first wavelength band to any of the second pixels, and causes second interference of part of the light in the second wavelength band incident on the two incident regions, and guides resultant light of the second interference to any of the first pixels and guides another part of the light in the second wavelength band incident on the two incident regions to any of the second pixels.
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公开(公告)号：US10139271B2
公开(公告)日：2018-11-27
申请号：US15171817
申请日：2016-06-02
Inventor： Seiji Nishiwaki
Abstract: A light detection device according to one aspect of the present disclosure includes: a light detector having a main surface and including at least one first detector and at least one second detector disposed along the main surface; a light coupling layer disposed on or apart from the light detector and including a first low-refractive-index layer, a first high-refractive-index layer disposed on the first low-refractive-index layer and including a first grating, and a second low-refractive-index layer disposed on the first high-refractive-index layer, the first high-refractive-index layer having a higher refractive index than the first and second low-refractive-index layers; and a light shielding film disposed on the light coupling layer and including at least one light transmitting region and at least one light shielding region adjacent to the at least one light transmitting region.
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公开(公告)号：US09787972B2
公开(公告)日：2017-10-10
申请号：US14489534
申请日：2014-09-18
Inventor： Seiji Nishiwaki
CPC classification number: H04N13/307 , G02B27/225
Abstract: An image display device includes a display including a plurality of light emitting elements that are two-dimensionally arranged, the plurality of light emitting elements being divided into a plurality of division regions, each of which includes more than one of the plurality of light emitting elements; and a lens that is located near a surface of the display so as to correspond to the division regions and that forms a display image by focusing each of images displayed in the respective division regions as a real image or a virtual image so that the focused images overlap on a same image plane.
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