Projection screen and projection system
US11762275B2 · kind B2 · utility
0Cited by
5References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 26, 2019 |
| Grant date | Sep 19, 2023 |
| Priority date | — |
| Expiry date | Apr 13, 2040 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B2207/123
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A projection screen and a projection system. The projection screen includes a reflection layer and a light absorption layer for absorbing light which are sequentially arranged from an incident side of projection light; the reflection layer comprises multiple microstructure units; each microstructure unit comprises a first plane and a second plane which are opposite to each other at an angle in a first direction as well as a third plane and a fourth plane which are opposite to each other at an angle in a second direction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.