Compact near-eye hologram display
US10345589B1 · kind B1 · utility
2Cited by
7References
20Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 30, 2015 |
| Grant date | Jul 9, 2019 |
| Priority date | — |
| Expiry date | Mar 4, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B2027/0174
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An apparatus includes a holographic film having one or more reflective holograms recorded therein. One or more light sources positioned to direct light toward a corresponding one of the one or more holograms, and a dynamic mask positioned between the one or more light sources and the holographic film to spatially modulate light traveling between the one or more light sources and the one or more reflective holograms but not spatially modulate ambient light traveling through the hologram.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.