Document capable of generating a color image
US11007811B2 · kind B2 · utility
Inventors
Key dates
| Filing date | Mar 14, 2019 |
| Grant date | May 18, 2021 |
| Priority date | — |
| Expiry date | Mar 14, 2039 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB42D25/45
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
The invention proposes a document configured to generate a color image, comprising: a set of pixels printed on or in a substrate, each pixel forming a pattern including an arrangement of sub-pixels of at least two different colors; and an array of lenses disposed opposite the set of pixels so as to generate the color image by focusing or diverging an incident light through the lenses on at least part of the sub-pixels, each lens being positioned, relative to a facing associated pixel, to focus or diverge the incident light on at least one of the sub-pixels of said associated pixel so as to modify the contribution of the respective colors of the sub-pixels of the associated pixel, in a region of the color image generated through said lens, with respect to the pattern intrinsically formed by the associated pixel independently of said lens.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.