Prismatic laminate and method for making the same
US8089697B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 5, 2010 |
| Grant date | Jan 3, 2012 |
| Priority date | — |
| Expiry date | Mar 11, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B5/0231
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A method for making a prismatic laminate includes the steps of: a) forming a back-coating roller having a roller surface with a plurality of recesses arranged in a predetermined pattern and produced by laser holography; b) preparing a prismatic structure including a plate body having a first surface and a second surface opposite to the first surface, and a plurality of prismatic strips formed on the first surface of the plate body; c) applying a coating containing a resin component and an antistatic agent on the second surface of the plate body; and d) embossing the coating with the back-coating roller to form an optical layer including a plurality of microstructures protruding in a direction away from the second surface of the plate body and having a pattern corresponding to that of the recesses in the roller surface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.