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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：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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