Security device for projecting a collection of synthetic images
US9482792B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 24, 2013 |
| Grant date | Nov 1, 2016 |
| Priority date | — |
| Expiry date | Jul 3, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T11/001
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
A security device for projecting a collection of synthetic images as well as a computer-implemented method for producing such a security device are provided. The synthetic images may represent different viewpoints of a target object or image that change from one viewpoint image to another viewpoint image as the location of the observer changes relative to the device. The nature of each synthetic image can, however, be completely arbitrary, much like the images that are provided by a display device such as a television or computer monitor. In an exemplary embodiment, a special symmetry is used to generate the synthetic images, which allows the device to be manufactured without regard for registration.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.