Layered image display sheet
US8474874B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 2, 2007 |
| Grant date | Jul 2, 2013 |
| Priority date | — |
| Expiry date | Oct 26, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03B25/02
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A moiré pattern display sheet is defined by a surface, with the surface being configured to be curved. A first layer has a pattern printed thereon. The pattern comprises a series of visual elements in a first row that have been distorted at least in a first direction. At least some of the series of visual elements are printed to approximately follow an arc having a sweep angle associated therewith. A light steering optical layer overlays the first layer. The light steering optical layer comprises a plurality of parallel optical features which each have a width and which change the direction of the light and thereby provide a depth effect of the visual elements to a viewer looking through the light steering optical layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.