Optical member and its production method
US-2015378058-A1 · Dec 31, 2015 · US
Low-color scratch-resistant articles with a multilayer optical film
US9079802B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9079802-B2 |
| Application number | US-201414331656-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jul 15, 2014 |
| Priority date | May 7, 2013 |
| Publication date | Jul 14, 2015 |
| Grant date | Jul 14, 2015 |
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Abstract
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Embodiments of this disclosure pertain to articles exhibiting 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 from about 0 degrees to about 60 degrees from normal under an illuminant, and hardness of at least 14 GPa at an indentation depth of at least 100 nm from the surface of the article. 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.
First claim
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What is claimed is: 1. An article comprising: a substrate having a surface and comprising a glass, a glass-ceramic, or single-crystal sapphire; and an optical film disposed on the substrate surface forming a coated surface, the optical film comprising a scratch-resistant layer and an optical interference layer disposed between the scratch-resistant layer and the substrate; wherein the article comprises a hardness of about 14 GPa or greater, as measured by indenting the coated…
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Physics · mapped topic
Physics · mapped topic
Cross-Sectional Technologies · mapped topic
Cross-Sectional Technologies · mapped topic
Chemistry & Metallurgy · mapped topic
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Frequently asked questions
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- What does patent US9079802B2 cover?
- Embodiments of this disclosure pertain to articles exhibiting 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 from about 0 degrees to about 60 degrees from normal under an illuminant, and hardness of at least 14 GPa at an indentation depth of at least 100 nm from the surfac…
- Who is the assignee on this patent?
- Corning Inc
- What technology area does this patent fall under?
- Primary CPC classification G02B1/113. Mapped technology areas include Physics.
- When was this patent published?
- Publication date Tue Jul 14 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).