Retroreflecting optical construction
US9291752B2 · kind B2 · utility
2Cited by
134References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 19, 2013 |
| Grant date | Mar 22, 2016 |
| Priority date | — |
| Expiry date | Mar 20, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B5/0247
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Retroreflecting optical constructions are disclosed. A disclosed retroreflecting optical construction includes a retroreflecting layer that has a retroreflecting structured major surface, and an optical film that is disposed on the retroreflecting structured major surface of the retroreflecting layer. The optical film has an optical haze that is not less than about 30%. Substantial portions of each two neighboring major surfaces in the retroreflecting optical construction are in physical contact with each other.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.