Display system comprising a screen comprising an array of three-dimensional scattering patterns
US9411161B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 11, 2014 |
| Grant date | Aug 9, 2016 |
| Priority date | — |
| Expiry date | Dec 11, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B2027/013
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
The general field of the invention is that of display systems comprising an image projector and an associated display screen, the said display system being designed to be used by an observer situated at a given location, the said display screen comprising two transparent and substantially parallel faces, the said display screen comprising, on at least one of its transparent faces, a plurality of regularly distributed light-scattering patterns. The image projector according to the invention illuminating the screen under a plurality of angles of incidence determined by the position and the size of the display screen, the said angles of incidence being centered on a mean angle of incidence, the scattering patterns comprise at least one scattering surface oriented in such a manner as to diffuse the light rays having at least the mean angle of incidence in one or more directions corresponding to the said given location of the observer. Several embodiments are described.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.