Coated optical substrates having first and second groups of functional dots having different functionalities and micrometer height difference
US10310151B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 2, 2015 |
| Grant date | Jun 4, 2019 |
| Priority date | — |
| Expiry date | Apr 2, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B5/208
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Optical device with an optical substrate and a multi-functional layer fixed thereon, the layer including plural multi-functional areas, each said area including a first group and a second group of functional dots and disposed within a certain rectangular area, the first group having a first composition and a first functionality, the first functionality selected from an anti-reflectance, anti-scratch, anti-fog, ultraviolet absorber, and photochromic functionality; the second group having a second composition and a second functionality, the second functionality selected from the same group as above, the second group differs with respect to the first functionality, or with respect to the first composition, or wherein within at least one multi-functional area, the first group has a height H1, the second group has a height H2, where H2>k*H1, with k being at least 1.05.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.