公开(公告)号：US20230167018A1

公开(公告)日：2023-06-01

申请号：US18101668

申请日：2023-01-26

Applicant: CORNING INCORPORATED

Inventor： Kaveh Adib ,  Guangli Hu ,  William Joseph Hurley ,  Dana Ianson ,  Lin Lin ,  Santona Pal ,  James Joseph Price

IPC: C03C17/245 ,  C03C3/091 ,  C03C3/097 ,  C03C17/22

CPC classification number: C03C17/245 ,  C03C3/091 ,  C03C3/097 ,  C03C17/225 ,  C03C2217/281 ,  C03C2217/29 ,  C03C2217/78 ,  C03C2217/91 ,  C03C2218/155

Abstract: An article is described herein that includes: a substrate having a glass, glass-ceramic or a ceramic composition and comprising a primary surface; and a protective film disposed on the primary surface. The protective film comprises a thickness of greater than 1.5 microns and a maximum hardness of greater than 15 GPa at a depth of 500 nanometers, as measured on the film disposed on the substrate. Further, the protective film comprises a metal oxynitride that is graded such that an oxygen concentration in the film varies by 1.3 or more atomic %. In addition, the substrate comprises an elastic modulus less than an elastic modulus of the film.

公开(公告)号：US20220317340A1

公开(公告)日：2022-10-06

申请号：US17708105

申请日：2022-03-30

Applicant: CORNING INCORPORATED ,  CORNING PRECISION MATERIALS

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 ,  Ljerka Ukrainczyk ,  Tingge Xu

IPC: G02B1/14 ,  G02B1/115 ,  G02B5/28

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.

公开(公告)号：US20210033751A1

公开(公告)日：2021-02-04

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

IPC: G02B1/11

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.

公开(公告)号：US20200057177A1

公开(公告)日：2020-02-20

申请号：US16541835

申请日：2019-08-15

Applicant: Corning Incorporated

Inventor： Shandon Dee Hart ,  Karl William Koch, III ,  Lin Lin ,  James Joseph Price

IPC: G02B1/115 ,  C03C17/34

Abstract: An article that includes: an inorganic oxide substrate having opposing major surfaces; and an optical film structure disposed on a first major surface of the substrate, the optical film structure comprising one or more of a silicon-containing oxide, a silicon-containing nitride and a silicon-containing oxynitride and a physical thickness from about 50 nm to less than 500 nm. The article exhibits a hardness of 8 GPa or greater measured at an indentation depth of about 100 nm or a maximum hardness of 9 GPa or greater measured over an indentation depth range from about 100 nm to about 500 nm, the hardness and the maximum hardness measured by a Berkovich Indenter Hardness Test. Further, the article exhibits a single-side photopic average reflectance that is less than 1%.

公开(公告)号：US20250093186A1

公开(公告)日：2025-03-20

申请号：US18829992

申请日：2024-09-10

Applicant: CORNING INCORPORATED

Inventor： Shandon Dee Hart ,  Karl William Koch, III ,  Carlo Anthony Kosik Williams ,  Lin Lin ,  Dong-gun Moon ,  Jeonghong Oh ,  Wenlei Zhang

IPC: G01D11/26 ,  G02B1/115

Abstract: A cover article for a sensor is described herein that includes: a substrate; and an outer layered film disposed on the substrate. The outer layered film comprises alternating high and low refractive index (RI) layers. Each of the high RI layers comprises a nitride or an oxynitride. The outer layered film can have a physical thickness from about 500 nm to 12,000 nm. The article has at least two non-overlapping wavelength bands, each band having a bandwidth from 5 nm to 200 nm and a central wavelength within a spectrum from 400 nm to 1200 nm. Further, the article exhibits, for each of the at least two non-overlapping wavelength bands, (a) an average two-surface transmittance of >70% within incident angles from 0° to 20° and (b) an average two-surface transmittance of

公开(公告)号：US20250085459A1

公开(公告)日：2025-03-13

申请号：US18701451

申请日：2022-10-07

Applicant: CORNING INCORPORATED

Inventor： Shandon Dee Hart ,  Karl William Koch, III ,  Carlo Anthony Kosik Williams ,  Lin Lin ,  Rui Luo ,  James Joseph Price ,  Nicholas Michael Walker

IPC: G02B1/115 ,  G01S17/931 ,  G02B1/14 ,  G02B5/28

Abstract: Disclosed is a window for a sensing system comprising a substrate, a first layered film comprising alternating layers of higher and lower index materials, and a second layered film comprising alternating layers of higher and lower index materials. The window comprises a maximum hardness, measured at the first layered film and by the Berkovich Indenter Hardness Test, of at least 8 GPa. The first and second layered films are configured so that the window has favorable antireflective and transmission attributes in an infrared wavelength range of interest, while providing relatively low reflectance and transmittance in the visible spectrum to provide a dark appearance and low signal noise.

公开(公告)号：US20240377556A1

公开(公告)日：2024-11-14

申请号：US18733266

申请日：2024-06-04

Applicant: CORNING INCORPORATED

Inventor： Casey James Gonta ,  Shandon Dee Hart ,  Carlo Anthony Kosik Williams ,  Lin Lin ,  James Joseph Price ,  Fred Douglas Woodall, II ,  Wenlei Zhang

IPC: G02B1/11

Abstract: A cover glass article is described herein comprising at least one substrate with opposing outer and inner primary surfaces, and at least one of an outer optical film structure and an inner optical disposed on the outer and inner primary surfaces, respectively. The outer and inner film structures comprise alternating high and low refractive index layers, in which at least a portion of the high refractive index layers independently is an oxide, a nitride, and/or an oxynitride, and at least a portion of the low refractive index layers independently is an oxide, a nitride, an oxynitride, and/or a metal fluoride. The cover glass article exhibits high visible light transmittance and low infrared light transmittance, being useful in applications including lenses, sensors, sensor assemblies, light sources, smartwatches, a smartphones, smart glasses, vehicle camera systems, displays, and cameras.

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

IPC: G02B1/115 ,  G02B1/14 ,  G02B5/28

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.

公开(公告)号：US20240069246A1

公开(公告)日：2024-02-29

申请号：US18237464

申请日：2023-08-24

Applicant: CORNING INCORPORATED

Inventor： Shandon Dee Hart ,  Karl William Koch, III ,  Carlo Anthony Kosik Williams ,  Lin Lin

IPC: G02B1/11

CPC classification number: G02B1/11

Abstract: An article is described herein that includes an optical coating on both a first portion and a second portion of a first major surface of a substrate. The first portion and the second portion face in different directions. The optical coating forms an anti-reflective surface, has a total thickness of less than 1000 nm, and is thicker over the first portion than over the second portion. The optical coating exhibits a first surface reflected color characterized by International Commission on Illumination (“CIE”) L*a*b* color space values of: (i) a*, from −6.0 to +4.5, and (ii) b*, from −11.0 to +6.0 at all viewing angles within a range of from 0 degrees to 10 degrees relative to a normal of the first major surface at both (i) the first portion and (ii) the second portion where the total thickness of the optical coating is 75% to 90% of the maximum value of the total thickness.

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

IPC: G02B1/11 ,  G02B1/115

CPC classification number: G02B1/11 ,  G02B1/115

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.