-
公开(公告)号：US10088355B2
公开(公告)日：2018-10-02
申请号：US15459027
申请日：2017-03-15
Inventor： Seiji Nishiwaki , Kenji Narumi , Teruhiro Shiono
Abstract: A light detection device includes a light detector including a first detector and a second detector; a light coupling layer disposed on or above the light detector; and a polarizer array that is disposed on the light coupling layer. The light coupling layer includes a first low-refractive-index layer, a first high-refractive-index layer including a first grating and a second grating adjacent to the first grating, and a second low-refractive-index layer in this order. The polarizer array includes a first polarizer that transmits light polarized in one direction and a second polarizer that is adjacent to the first polarizer and blocks the light polarized in the one direction. The first grating and the first polarizer face the first detector, and the second grating and the second polarizer face the second detector.
-
公开(公告)号：US12248140B2
公开(公告)日：2025-03-11
申请号：US17695743
申请日：2022-03-15
Inventor： Kenji Narumi , Yasuhisa Inada
Abstract: An optical device includes an optical deflector that emits, through a light exit surface parallel to a first direction and a second direction intersecting the first direction and in a direction intersecting the light exit surface, an optical beam having a shape extending in the second direction and that is configured to cause a direction of emission of the optical beam to change along the first direction and an optical element, placed on a path of the optical beam, that expands an extent of spread of the optical beam in the second direction.
-
3.发明授权公开(公告)号：US12042260B2
公开(公告)日：2024-07-23
申请号：US17316760
申请日：2021-05-11
Inventor： Yumiko Ohno , Kenji Narumi , Tsuguhiro Korenaga , Jin Muraoka , Satoshi Arimoto , Takamasa Ando
CPC classification number: A61B5/0261 , A61B5/0082 , A61B5/4064 , H04N25/76
Abstract: A biometric apparatus includes a light source, an image sensor, a control circuit, and a signal processing circuit. The control circuit causes a light source to repeatedly emit a light pulse radiated onto a target part including a head of a target, causes an image sensor to receive a reflected light pulse which is caused as the light pulse is radiated onto the target part, causes the image sensor to output first image data indicating appearance of a face of the target, and causes the image sensor to output second image data according to distribution of an amount of light of at least one of components of the reflected light pulse. The signal processing circuit generates data indicating a state of the target based on a temporal change in the first image data and a temporal change in the second image data and outputs the data.
-
公开(公告)号：US10088293B2
公开(公告)日：2018-10-02
申请号：US15459024
申请日：2017-03-15
Inventor： Seiji Nishiwaki , Kenji Narumi , Teruhiro Shiono
Abstract: A light detection device includes a light detector including first detectors and second detectors both disposed along a main surface; a light coupling layer disposed on or above the light detector; and a light shielding film disposed on the light coupling layer. The light coupling layer includes a first low-refractive-index layer, a first high-refractive-index layer that is disposed on the first low-refractive-index layer and includes a first grating, and a second low-refractive-index layer that is disposed on the first high-refractive-index layer. The light shielding film includes a light transmitting region and a light shielding region adjacent to the light transmitting region. The light transmitting region faces two or more first detectors included in the first detectors, and the light shielding region faces two or more second detectors included in the second detectors.
-
公开(公告)号：US10082389B2
公开(公告)日：2018-09-25
申请号：US15447054
申请日：2017-03-01
Inventor： Kenji Narumi , Teruhiro Shiono , Seiji Nishiwaki
CPC classification number: G01B11/2441 , G01B9/02051 , G01J3/4532 , H01L27/14621 , H01L27/14623 , H01L27/14625
Abstract: A photodetection device comprises: an image sensor that includes first pixels, second pixels, third pixels, and fourth pixels; an interference element that includes first incident regions and second incident regions; and an optical system that causes light in a first wavelength band to be incident on the first incident regions and causes light in a second wavelength band different from the first wavelength band to be incident on the second incident regions. The interference element causes first interference of part of the light in the first wavelength band incident on two first incident regions that are included in the first incident regions. The interference element also causes second interference of part of the light in the second wavelength band incident on two second incident regions.
-
Patent Agency Ranking
公开(公告)号：US09661193B2
公开(公告)日：2017-05-23
申请号：US14804333
申请日：2015-07-21
Inventor： Kenji Narumi
CPC classification number: H04N5/211 , G02B3/0056 , G02B27/0018 , H04N5/2254
Abstract: An imaging apparatus includes a lens optical system including a lens, a stop, and first through nth divided optical elements in which first through nth optical regions are defined, respectively, along a plane perpendicular to an optical axis and positioned to be point-symmetric with respect to the optical axis, an image sensor, and a microlens array guiding light that has passed through the first through nth optical regions to the first through nth pixels of the image sensor, respectively. At least three of s1, . . . , and Sn are mutually different and a relation of si≧si+1 is satisfied, where s1, . . . , and sn represent mean luminances of images obtained from the first through nth pixels, respectively. The first optical region and the nth optical region are positioned not to be point-symmetric to each other with respect to the optical axis.
-
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.
-
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.
-
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.
-
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.
-
-
-
-
-
-
-
-
-
Search Results
14
records
(took 0.017 seconds)
