The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Sep. 17, 2024

Filed:

Nov. 09, 2022
Applicant:

Corning Incorporated, Corning, NY (US);

Inventors:

Shandon Dee Hart, Elmira, NY (US);

Karl William Koch, III, Elmira, NY (US);

Charles Andrew Paulson, Painted Post, NY (US);

Assignee:

Corning Incorporated, Corning, NY (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B 1/11 (2015.01); C03C 17/34 (2006.01); G02B 1/115 (2015.01);
U.S. Cl.
CPC ...
G02B 1/11 (2013.01); C03C 17/3417 (2013.01); C03C 17/3435 (2013.01); G02B 1/115 (2013.01); C03C 2217/734 (2013.01);
Abstract

Embodiments of articles including a low-contrast anti-reflection coating are disclosed. The coated surface of such articles exhibits a reduced difference in reflectance between a pristine state and when a surface defect is present. In one or more embodiments, the coated surface of such articles exhibits a first average reflectance in the range from about 0.6% to about 6.0% in a pristine condition and a second average reflectance of about 8% or less after removal of a surface thickness of the anti-reflection coating. In other embodiments, the coated substrate exhibits a second average reflectance of about 10% or less, when the coated surface comprises a contaminant. In some embodiments, the coated substrate exhibits a first color coordinate (a*, b*) in a pristine condition and a second color coordinate (a*, b*) after the presence of a surface defect such that Δa*b* is about 6 or less.


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