Partial coating of lenses
US10324235B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 8, 2017 |
| Grant date | Jun 18, 2019 |
| Priority date | — |
| Expiry date | Aug 5, 2037 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF21S43/26
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A coated substrate includes a substrate having a glow-discharged surface; and a coating having a submicrometric layer thickness sputter deposited onto the substrate. The coating having a submicrometric layer thickness has a predetermined absorbance. The predetermined absorbance regulates an amount of light transmitted from a light source through the substrate from a first side to a second side of the substrate. The substrate is opaque on the second side of the substrate when the light source is deactivated on the first side of the substrate. The predetermined absorbance varies as a function of one or more controlled process parameters.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.