Article having a plurality of optical structures
US9348069B2 · kind B2 · utility
4Cited by
11References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 19, 2014 |
| Grant date | May 24, 2016 |
| Priority date | — |
| Expiry date | Jul 20, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B30/27
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
An article having optical structures disposed on a base material element. Optical structures include lenticular lens structures and discrete coloring elements. Lenticular lens structure has several lens layers. The article has a different appearance when an observer views the article at various angles. The appearance may differ in terms of coloring scheme.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.