Optical filter with selective transmittance and reflectance
US-2017102489-A1 · Apr 13, 2017 · US
Crazing resistant coating and method thereof
US10317701B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-10317701-B2 |
| Application number | US-201615074149-A |
| Country | US |
| Kind code | B2 |
| Filing date | Mar 18, 2016 |
| Priority date | Mar 18, 2015 |
| Publication date | Jun 11, 2019 |
| Grant date | Jun 11, 2019 |
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Abstract
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An anti-reflective coating system configured to resist crazing resulting from applied compressive forces, and an optical article employing the anti-reflective coating system; and methods of forming the same.
First claim
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What is claimed is: 1. An optical article having anti-reflective properties comprising: a bulk material having a first and a second optical surface; a first anti-reflective coating formed of a plurality of layers of a high, mid, and/or low refractive index material applied over the first optical surface; a second anti-reflective coating formed of a plurality of layers of a high, mid, and/or low refractive index material applied over the second optical surface, a total number of layers of the plurality of layers of the high, mid, and/or low refractive index material of the second anti-reflective coating greater than a total number of layers of the plurality of layers of the high, mid, and/or low refractive index material of the first anti-reflective coating; and a reflection spectrum of the second anti-reflective coating substantially the same as a reflection spectrum of the first anti-reflective coating and a mechanical property of the second anti-reflective coating distinct from a mechanical property of the first anti-reflective coating. 2. The optical article of claim 1 wherein the bulk material is a cast lens or an injection molded lens. 3. The optical article of claim 1 wherein the bulk material comprises an optically functional laminate. 4. The optical article of claim 1 wherein the first optical surface is convex. 5. The optical article of claim 1 wherein the second optical surface is concave. 6. The optical article of claim 1 wherein the plurality of layers of the first anti-reflective coating comprises a total of four layers. 7. The optical article of claim 1 wherein the plurality of layers of the first anti-reflective coating comprises at least one layer formed of a high refractive index material having a thickness greater than approximately 100 nanometers. 8. The optical article of claim 1 wherein the plurality of layers of the second anti-reflective coating comprises a total of six layers. 9. The optical article of claim 1 further comprising a hard-coating applied directly on the first and the second optical surface. 10. The optical article of claim 1 wherein the second anti-reflective coating substantially resists crazing when the second optical surface is exposed to a change in diopter of greater than 5 diopter due to a compressive force applied to the optical surface. 11. The optical article of claim 1 further comprising a UV cured hard-coating applied directly on the second optical surface. 12. The optical article of claim 1 wherein the first anti-reflective coating comprises a Bayer abrasion resistance greater than 1.5.
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- What does patent US10317701B2 cover?
- An anti-reflective coating system configured to resist crazing resulting from applied compressive forces, and an optical article employing the anti-reflective coating system; and methods of forming the same.
- Who is the assignee on this patent?
- Vision Ease Lp
- What technology area does this patent fall under?
- Primary CPC classification G02C7/02. Mapped technology areas include Physics.
- When was this patent published?
- Publication date Tue Jun 11 2019 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 3 related publications on this page (citations in our corpus or others sharing the same primary CPC).