Transparent projection screen
US11561418B2 · kind B2 · utility
0Cited by
7References
2Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 9, 2021 |
| Grant date | Jan 24, 2023 |
| Priority date | — |
| Expiry date | Jul 16, 2041 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02C7/044
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
According to some embodiments, a transparent screen includes a first transparent substrate having a first transparent substrate index of refraction and including a surface relief pattern, a partially reflective coating formed on the surface relief pattern, and a second transparent substrate bonded over the partially reflective coating with an optical adhesive having the first transparent substrate index of refraction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.