Patterned roller for the micro-replication of complex lenses
US6583936B1 · kind B1 · utility
44Cited by
6References
41Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 11, 2002 |
| Grant date | Jun 24, 2003 |
| Priority date | — |
| Expiry date | Mar 11, 2022 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29C45/372
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
Disclosed is a form comprising a surface having a morphology of complex lenses wherein the surface asperities have an amplitude of between 1 and 40 micrometers, a spatial frequency of between 1 and 100 complex lenses per square millimeter, and between 1 and 40 minor lenses per major lens. Also disclosed is a method for making such a form.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.