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公开(公告)号：US11927722B2
公开(公告)日：2024-03-12
申请号：US18120488
申请日：2023-03-13
Applicant: CORNING INCORPORATED
Inventor： Jaymin Amin , Jason Thomas Harris , Shandon Dee Hart , Chang-gyu Kim , Karl William Koch, III , Carlo Anthony Kosik Williams , Lin Lin , Dong-gun Moon , Jeonghong Oh , James Joseph Price , Charlene Marie Smith , Ananthanarayanan Subramanian , Ljerka Ukrainczyk , Tingge Xu
CPC classification number: G02B1/14 , G02B1/115 , G02B5/285 , C03C2217/734
Abstract: A transparent article is described herein that includes: a glass-ceramic substrate comprising first and second primary surfaces opposing one another and a crystallinity of at least 40% by weight; and an optical film structure disposed on the first primary surface. The optical film structure comprises a plurality of alternating high refractive index (RI) and low RI layers and a scratch-resistant layer. The article also exhibits an average photopic transmittance of greater than 80% and a maximum hardness of greater than 10 GPa, as measured by a Berkovich Hardness Test over an indentation depth range from about 100 nm to about 500 nm. The glass-ceramic substrate comprises an elastic modulus of greater than 85 GPa and a fracture toughness of greater than 0.8 MPa·√m. Further, the optical film structure exhibits a residual compressive stress of ≥700 MPa and an elastic modulus of ≥140 GPa.
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22.发明授权公开(公告)号：US11815657B2
公开(公告)日：2023-11-14
申请号：US16944408
申请日：2020-07-31
Applicant: Corning Incorporated
Inventor： Shandon Dee Hart , Karl William Koch, III , Carlo Anthony Kosik Williams , Lin Lin , James Joseph Price , Nicholas M Walker
Abstract: An article is described herein that includes: a translucent substrate having a major surface; and an anti-reflective coating disposed on the major surface and forming an anti-reflective surface. The article exhibits a single side average photopic light reflectance at the anti-reflective surface of less than 0.35%. Further, the article exhibits a single side color shift (ΔC) of less than 6 over an incident angle range from 0 degrees to 60 degrees incidence at the anti-reflective surface, wherein the anti-reflective coating comprises a physical thickness from about 50 nm to less than 500 nm. In addition, the anti-reflective coating comprises a plurality of layers that comprises at least one low refractive index layer and at least one high refractive index layer. Further, each high refractive index layer has a refractive index of greater than 2.0 and each low refractive index layer has a refractive index of less than 1.7.
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公开(公告)号：US20230034541A1
公开(公告)日：2023-02-02
申请号：US17955737
申请日：2022-09-29
Applicant: CORNING INCORPORATED
Inventor： Shandon Dee Hart , Karl William Koch, III , Carlo Anthony Kosik Williams , Lin Lin , Thien An Thi Nguyen , Charles Andrew Paulson , James Joseph Price
Abstract: A coated article is described herein with a substrate having a major surface that comprises a first portion and a second portion that is curved or faceted; and an optical coating on the major surface that forms an anti-reflective surface. A first direction is normal to the first portion and is not equal to a plurality of second directions that are normal to the second portion, and the angle between the first direction and each of the second directions is from about 10 degrees to 60 degrees. Further, the coated article exhibits at the first and second portion a hardness of about 8 GPa or greater at an indentation depth of about 100 nm or greater. Further, the coated article exhibits a single side maximum reflectance of about 3% or less as the first and second portion, wherein the reflectance is measured in a range from about 425 nm to about 950 nm.
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公开(公告)号：US11434166B2
公开(公告)日：2022-09-06
申请号：US17205699
申请日：2021-03-18
Applicant: CORNING INCORPORATED
Inventor： Heather Bossard Decker , Shandon Dee Hart , Guangli Hu , James Joseph Price , Paul Arthur Sachenik
Abstract: One or more aspects of the disclosure pertain to an article including a film disposed on a glass substrate, which may be strengthened, where the interface between the film and the glass substrate is modified, such that the article has an improved average flexural strength, and the film retains key functional properties for its application. Some key functional properties of the film include optical, electrical and/or mechanical properties. The bridging of a crack from one of the film or the glass substrate into the other of the film or the glass substrate can be suppressed by inserting a nanoporous crack mitigating layer between the glass substrate and the film.
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公开(公告)号：US20220251396A1
公开(公告)日：2022-08-11
申请号：US17680444
申请日：2022-02-25
Applicant: CORNING INCORPORATED
Inventor： Jaymin Amin , Shandon Dee Hart , Karl William Koch, III , Eric Louis Null , Xu Ouyang , Charles Andrew Paulson , James Joseph Price
Abstract: Embodiments of durable, anti-reflective articles are described. In one or more embodiments, the article includes a substrate and an anti-reflective coating disposed on the major surface. The article exhibits an average light transmittance of about 94% or greater over an optical wavelength regime and/or an average light reflectance of about 2% or less over the optical wavelength regime, as measured from an anti-reflective surface. In some embodiments, the article exhibits a maximum hardness of about 8 GPa or greater as measured by a Berkovich Indenter Hardness Test along an indentation depth of about 50 nm or greater and a b* value, in reflectance, in the range from about −5 to about 1 as measured on the anti-reflective surface only at all incidence illumination angles in the range from about 0 degrees to about 60 degrees under an International Commission on Illumination illuminant.
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Patent Agency Ranking
公开(公告)号：US11407681B2
公开(公告)日：2022-08-09
申请号：US16498908
申请日：2018-03-23
Applicant: Corning Incorporated
Inventor： Robert Alan Bellman , Shandon Dee Hart , Jenny Kim , Karl William Koch, III , James Joseph Price , Hannah Shenouda
Abstract: An article that includes: a glass-based substrate comprising opposing major surfaces; a crack mitigating composite over one of the major surfaces, the composite comprising an inorganic element and a polymeric element; and a hard film disposed on the crack mitigating composite comprising an elastic modulus greater than or equal to the elastic modulus of the glass-based substrate. The crack mitigating composite is characterized by an elastic modulus of greater than 30 GPa. Further, the hard film comprises at least one of a metal-containing oxide, a metal-containing oxynitride, a metal-containing nitride, a metal-containing carbide, a silicon-containing polymer, a carbon, a semiconductor, and combinations thereof.
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公开(公告)号：US11231526B2
公开(公告)日：2022-01-25
申请号：US16386759
申请日：2019-04-17
Applicant: CORNING INCORPORATED
Inventor： Robert Alan Bellman , Shandon Dee Hart , Karl William Koch, III , Charles Andrew Paulson , James Joseph Price
Abstract: Embodiments of this disclosure pertain to articles that exhibit scratch-resistance and improved optical properties. In some examples, the article exhibits a color shift of about 2 or less, when viewed at an incident illumination angle in the range from about 0 degrees to about 60 degrees from normal under an illuminant. In one or more embodiments, the articles include a substrate, and an optical film disposed on the substrate. The optical film includes a scratch-resistant layer and an optical interference layer. The optical interference layer may include one or more sub-layers that exhibit different refractive indices. In one example, the optical interference layer includes a first low refractive index sub-layer and a second a second high refractive index sub-layer. In some instances, the optical interference layer may include a third sub-layer.
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28.发明授权公开(公告)号：US11072558B2
公开(公告)日：2021-07-27
申请号：US16690499
申请日：2019-11-21
Inventor： Bill Baloukas , Robert Alan Bellman , Shandon Dee Hart , Karl William Koch, III , Carlo Anthony Kosik Williams , Ludvik Martinu , Charles Andrew Paulson , James Joseph Price , Jincheng Qian
IPC: B32B15/04 , B32B17/06 , C03C17/245 , H05K5/00 , H05K5/03
Abstract: An article includes: a transparent substrate having a primary surface; and a protective film disposed on the primary surface, such that each of the substrate and the protective film have an optical transmittance of 20% or more in the visible spectrum, and such that the protective film includes at least one of: (1) a hardness of greater than 13 GPa, as measured by a Berkovich nanoindenter, or (2) an effective fracture toughness (Kc) of greater than 2.5 MPa·m1/2, as measured by indentation fracture at a depth of greater than 1 μm.
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公开(公告)号：US11016680B2
公开(公告)日：2021-05-25
申请号：US16229673
申请日：2018-12-21
Applicant: CORNING INCORPORATED
Inventor： Shandon Dee Hart , Karl William Koch, III , Carlo Anthony Kosik Williams , Lin Lin , Charles Andrew Paulson , James Joseph Price
Abstract: Embodiments of durable, scratch resistant articles are described. The articles have coatings that provide specific reflectance, transmission, and/or color properties, as well as high hardness. Some embodiments have low reflectance, and high color. Some embodiments have high reflectance and neutral color. Some embodiments have high reflectance and high color. In some embodiments, the articles may be sunglasses with an optical coating, a scratch resistant mirror with an optical coating, or a consumer electronic product with an optical coating.
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公开(公告)号：US20210063609A1
公开(公告)日：2021-03-04
申请号：US16643339
申请日：2018-08-30
Applicant: Corning Incorporated
Inventor： Robert Alan Bellman , Shandon Dee Hart , Karl William Koch, III , Carlo Anthony Kosik Williams , Charles Andrew Paulson , James Joseph Price
Abstract: Durable and scratch resistant articles including low-reflectance optical coating with gradient portion. In some embodiments, an article comprises: a substrate comprising a first major surface; and an optical coating disposed over the first major surface. The optical coating comprises: a second major surface; a thickness; and a first gradient portion. A refractive index of the optical coating varies along a thickness of the optical coating. The difference between the maximum refractive index of the first gradient portion and the minimum refractive index of the first gradient portion is 0.05 or greater. The absolute value of the slope of the refractive index of the first gradient portion is 0.1/nm or less everywhere along the thickness of the first gradient portion. The article exhibits a single side photopic average light reflectance of 3% or less, and a maximum hardness from 10 GPa to 30 GPa.
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