Invention Grant
- Patent Title: Durable and scratch-resistant anti-reflective articles
-
Application No.: US15657772Application Date: 2017-07-24
-
Publication No.: US10436945B2Publication Date: 2019-10-08
- Inventor: Shandon Dee Hart , Karl William Koch, III , Charles Andrew Paulson , James Joseph Price
- Applicant: CORNING INCORPORATED
- Applicant Address: US NY Corning
- Assignee: Corning Incorporated
- Current Assignee: Corning Incorporated
- Current Assignee Address: US NY Corning
- Main IPC: G02B1/115
- IPC: G02B1/115 ; G02B1/11 ; G02B1/14 ; G02B5/02 ; C03C17/34 ; C03C21/00 ; G02B1/18 ; G02B27/00

Abstract:
Embodiments of durable, anti-reflective articles are described. In one or more embodiments, the article includes a substrate and an optical coating disposed on the major surface. The optical coating includes an anti-reflective coating and a scratch-resistant coating forming an anti-reflective surface. The article exhibits a maximum hardness of 12 GPa or greater, as measured on the anti-reflective surface by a Berkovich Indenter Hardness Test along an indentation depth of about 100 nm or greater. The articles of some embodiments exhibit a single side average light reflectance measured at the anti-reflective surface of about 8% or less over an optical wavelength regime in the range from about 400 nm to about 800 nm and a reference point color shift in transmittance or reflectance of less than about 2. In some embodiments, the article exhibits an angular color shift of about 5 or less at all angles from normal incidence to an incident illumination angle that is 20 degrees or greater.
Public/Granted literature
- US20170336538A1 DURABLE AND SCRATCH-RESISTANT ANTI-REFLECTIVE ARTICLES Public/Granted day:2017-11-23
Information query