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公开(公告)号:US20250004171A1
公开(公告)日:2025-01-02
申请号:US18884095
申请日:2024-09-12
Inventor: KEIGO MASUDA , EIJI TAKEDA , KAZUHIRO MINAMI
Abstract: An optical lens is used for light in a predetermined target wavelength region. The optical lens includes a substrate and a plurality of microstructures arranged on a surface of the substrate at intervals shorter than the shortest wavelength in the target wavelength region. The structure and/or the interval of each of the plurality of microstructures is determined in such a way as to compensate for a variation in phase and/or transmittance depending on the incident angle of the incident light at each position in the region where the plurality of microstructures is provided.
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公开(公告)号:US20250004172A1
公开(公告)日:2025-01-02
申请号:US18884176
申请日:2024-09-13
Inventor: EIJI TAKEDA , KEIGO MASUDA
Abstract: An optical lens is used for light in a predetermined target wavelength region. The optical lens includes a substrate and a plurality of microstructures provided on a surface of the substrate. The plurality of microstructures is arranged at intervals shorter than a shortest wavelength in the target wavelength region. The intervals vary depending on a position on the surface in accordance with a magnitude of a variation in phase profile of the optical lens.
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公开(公告)号:US20220065784A1
公开(公告)日:2022-03-03
申请号:US17523583
申请日:2021-11-10
Inventor: EIJI TAKEDA
IPC: G01N21/64
Abstract: There is provided a detection device for detecting a detection target substance by using a metal material modified with a first substance having a property of specifically binding to the detection target substance and a fluorescent material modified with a second substance having a property of specifically binding to the detection target substance, the detection device including: a light source that emits light for exciting the fluorescent material; a photodetector that detects fluorescence emitted by the fluorescent material over time for a specific period from when emission of the light by the light source is stopped; and a processor that detects the detection target substance in a complex formed of the metal material, the detection target substance, and the fluorescent material binding to each other, on the basis of an attenuation characteristic of the fluorescence during the specific period.
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公开(公告)号:US20250004170A1
公开(公告)日:2025-01-02
申请号:US18882814
申请日:2024-09-12
Inventor: KEIGO MASUDA , EIJI TAKEDA
IPC: G02B1/00
Abstract: An optical lens is used for light in a predetermined target wavelength region. The optical lens includes a substrate, and a plurality of microstructures arranged on a surface of the substrate at an interval shorter than a shortest wavelength λ in the target wavelength region. In a case where a refractive index of a medium around the optical lens is defined as n, a numerical aperture of the optical lens is defined as NA=nsinθi, and a maximum angle of view of the optical lens is defined as ±θi, an interval P of the microstructures satisfies P
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公开(公告)号:US20220310868A1
公开(公告)日:2022-09-29
申请号:US17805471
申请日:2022-06-06
Inventor: EIJI TAKEDA , SHINYA OKAMOTO
IPC: H01L31/108 , H01L31/0256 , H01L31/0224
Abstract: An optical device includes: a silicon substrate in which a plane direction of a crystal plane of a principal surface is a (111) plane, the principal surface having an uneven structure; and a conductor that is joined to the silicon substrate by Schottky junction, in which the conductor is directly joined to a (111) plane of at least one of a protruding portion or a depressed portion in the uneven structure.
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