Method of manufacturing a screen comprising transparent portions and retroreflective portions
US10585280B2 · kind B2 · utility
0Cited by
4References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 20, 2018 |
| Grant date | Mar 10, 2020 |
| Priority date | — |
| Expiry date | Apr 20, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B2027/0196
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
The invention relates to a method of manufacturing a screen comprising transparent portions and retroreflective portions distributed over all or part of the surface thereof.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.