Metallized retroreflective sheeting with increased daytime brightness
US7922344B2 · kind B2 · utility
0Cited by
5References
25Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 2, 2008 |
| Grant date | Apr 12, 2011 |
| Priority date | — |
| Expiry date | Sep 8, 2029 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T83/0481
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A retroreflective sheeting (10) comprising a cube layer (20) having a front light-receiving surface (30) and a rear retroreflecting surface (32), and a metallic layer (22) covering the rear retroreflecting surface (32). The rear surface (32) comprises an array of retroreflective elements (34) and diffusing patches (36) within such array (without retroreflective elements (34)). The metallic layer (22) covers the retroreflective elements (34) and the diffusing patches (36), whereby diffusing patches (36) scatter incoming light increasing daytime brightness to a desired level.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.