Autostereoscopic display system with one dimensional (1D) retroreflective screen
US9182524B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 29, 2011 |
| Grant date | Nov 10, 2015 |
| Priority date | — |
| Expiry date | Nov 23, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03B35/20
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An autostereoscopic apparatus for providing a 3D image to a viewer at a range of vertical eye locations. The apparatus includes a projection screen with a light receiving surface that is horizontally retroreflective and vertically diffusive. The apparatus includes a projector assembly including at least two projectors arranged side-by-side such that projection lenses of the projectors are horizontally aligned in a row. The apparatus includes a controller selectively operating the projectors to project at least two differing point-of-view images. The projection screen may take a number of useful embodiments to implement the autostereoscopic apparatus. For example, the projection screen may include a bottom layer including a retroreflective film that is retroreflective at least in the horizontal direction such as a brightness enhancement film and a top layer formed of a transparent sheet of lenticular material arranged for vertical diffusing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.