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公开(公告)号：US20210382214A1
公开(公告)日：2021-12-09
申请号：US17286884
申请日：2019-10-23
Applicant: Dexerials Corporation
Inventor： Shunichi KAJIYA , Hiroshi TAZAWA , Kazuhiko NODA , Kyoko SAKURAI
IPC: G02B5/22
Abstract: Provided is an optical filter having different color correction effects for specific wavelength regions depending on the angle of incident light. The optical filter includes a transmission portion transmitting light and an absorption portion absorbing light between a plane of incidence and a plane of emission, and the volume of the transmission portion is larger than the volume of the absorption portion. For the optical filter, when the transmission spectrum S0 of light incident at 0° and the transmission spectrum S60 of light incident at 60° are superimposed, the transmittance (%) at 60° is lower than the transmittance (%) at 0° by 15% or more for a first wavelength band, and the difference between the transmittance (%) at 60° and the transmittance (%) at 0° is lower by 10% or more less for a second wavelength band.
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公开(公告)号：US20210197504A1
公开(公告)日：2021-07-01
申请号：US17057317
申请日：2019-05-16
Applicant: DEXERIALS CORPORATION
Inventor： Hiroshi TAZAWA , Mitsuo ARIMA , Koji SASAKI
Abstract: Provided are a resin laminated optical body, a light source unit, an optical unit, a light irradiation device, an image display device, and a method for manufacturing a resin laminated optical body that are novel and improved, by which an optical apparatus can be reduced in size, and the light emission quality can be improved. To achieve the above object, according to an aspect of the present invention, a resin laminated optical body is provided including an optical base material having a curved surface, and a resin layer provided on the curved surface of the optical base material, in which a light diffusing structure is formed in a surface of the resin layer.
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公开(公告)号：US20210053273A1
公开(公告)日：2021-02-25
申请号：US16955628
申请日：2018-12-18
Applicant: DEXERIALS CORPORATION
Inventor： Masanao KIKUCHI , Hiroshi TAZAWA , Asahiko NOGAMI , Kazuya HAYASHIBE
Abstract: Provided are a master in which a more complicated microstructure is formed, a transferred object obtained by using the master, and a method of producing the master. A plurality of concave-convex groups each including a plurality of concavities or convexities are provided on a base material apart from each other. Average widths of areas occupied by the concavities or convexities at a surface of the base material are smaller than or equal to a wavelength belonging to a visible light band. Formed lengths of the concavities or convexities from the surface of the base material in each of the concave-convex groups each belong to any of at least two or more groups having different central values.
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Patent Agency Ranking
公开(公告)号：US20230124524A1
公开(公告)日：2023-04-20
申请号：US17907406
申请日：2021-03-17
Applicant: Dexerials Corporation
Inventor： Hiroshi TAZAWA
Abstract: It would be helpful to provide an optical body having excellent antireflection performance over a wide wavelength range from the visible light region to the near-infrared region. The present disclosure discloses an optical body 1 including a transparent substrate 10 and a fine uneven layer 20 with a fine uneven structure in at least one surface of the substrate 10. A maximum value (Ra) of reflectance for light in a wavelength region of 400 nm to 950 nm is 1 % or less, and a wavelength at which the reflectance is at a local minimum value (Rb) is 650 nm or more.
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公开(公告)号：US20210094220A1
公开(公告)日：2021-04-01
申请号：US17041184
申请日：2019-02-27
Applicant: DEXERIALS CORPORATION
Inventor： Hiroshi TAZAWA
Abstract: There is provided a novel and improved resin laminated optical body and a method for manufacturing the same that can easily adjust an optical property other than an optical property derived from a micro concave-convex structure, and eventually can reduce manufacturing costs of an optical device. The resin laminated optical body includes: an optical base material having a curved surface; and a resin layer provided on the curved surface of the optical base material. A micro concave-convex structure is formed in a surface of the resin layer, and the resin laminated optical body has a first optical property derived from the micro concave-convex structure and a second optical property derived from a property of the resin layer other than the micro concave-convex structure, the second optical property being different from an optical property of the optical base material.
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公开(公告)号：US20200319377A1
公开(公告)日：2020-10-08
申请号：US16955496
申请日：2018-12-18
Applicant: DEXERIALS CORPORATION
Inventor： Masanao KIKUCHI , Hiroshi TAZAWA , Kazuya HAYASHIBE
Abstract: Provided are a concave-convex structure including more complicated concave-convex structure, an optical member, and an electronic apparatus. The concave-convex structure includes a plurality of group portions each including a plurality of concavities or convexities provided in a surface of a base material, in which average widths of areas occupied by the concavities or convexities at the surface of the base material are smaller than or equal to a wavelength belonging to a visible light band.
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公开(公告)号：US20220291422A1
公开(公告)日：2022-09-15
申请号：US17754144
申请日：2020-09-23
Applicant: Dexerials Corporation
Inventor： Hiroshi SUGATA , Hiroshi TAZAWA , Shunichi KAJIYA
IPC: G02B1/118
Abstract: Provided is an anti-reflection structure with excellent anti-reflection performance and transparency, and with reduced generation of wrinkles on the surface. The present disclosure is an anti-reflection structure 10 including at least an adhesion layer 20 and an anti-reflection layer 30 formed on the adhesion layer 20 and having fine uneven structures on both sides thereof. The storage elastic modulus E′ of the adhesion layer 20 is equal to or greater than 25 MPa, and fine uneven structures formed on both sides of the anti-reflection layer 30 each have an uneven period P equal to or less than the wavelength of visible light.
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公开(公告)号：US20210382205A1
公开(公告)日：2021-12-09
申请号：US17288124
申请日：2019-10-30
Applicant: Dexerials Corporation
Inventor： Hiroshi SUGATA , Hiroshi TAZAWA , Shunichi KAJIYA
Abstract: A laminate includes a thin film structural body and retention films. A first retention film is stacked on one face of the thin film structural body and a second retention film is stacked on another face of the thin film structural body. The thin film structural body has a first fine irregularity structure at a face that is in contact with the first retention film and has a second fine irregularity structure at a face that is in contact with the second retention film. The first retention film has a third fine irregularity structure at a face that is in contact with the thin film structural body. The second retention film has a fourth fine irregularity structure at a face that is in contact with the thin film structural body. The laminate includes a half cut section. The second retention film contains a UV-curable resin.
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