Machine for coating an optical article with an anti-soiling coating composition and method for using the machine
US11098400B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Oct 6, 2016 |
| Grant date | Aug 24, 2021 |
| Priority date | — |
| Expiry date | Oct 11, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J2237/334
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A machine for coating an optical article with an anti-soiling coating composition, includes a vacuum chamber (8) configured to receive the optical article, a vacuum pump (20) connected to the vacuum chamber (8), a plasma generator (11) configured to carry out a vacuum plasma treatment of the optical article, an evaporation device (10) configured to carry out a vacuum evaporation treatment of the composition for depositing it on the optical article, a control unit (2) controlling the plasma generator for removing an initial outermost anti-soiling coating of the article, controlling the evaporation device for recoating the article with the anti-soiling coating composition, being configured to causes the vacuum pump (20) to suck gases from the chamber (8) during vacuum plasma treatment and being further configured to causes the vacuum pump (20) not to suck gases from the chamber (8) during vacuum evaporation treatment.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.