Out-of-plane computer-generated multicolor waveguide holography
US11543774B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 1, 2019 |
| Grant date | Jan 3, 2023 |
| Priority date | — |
| Expiry date | May 16, 2040 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03H2225/12
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Various examples of out-of-plane multicolor waveguide holography systems, methods of manufacture, and methods of use are described herein. In some examples, a multicolor waveguide holography system includes a planar waveguide to convey optical radiation between a grating coupler and a metasurface hologram. The grating coupler may be configured to couple out-of-plane optical radiation of three different color incident at three different angles into the planar waveguide. The combined multicolor optical radiation may be conveyed by the waveguide to the metasurface hologram. The metasurface hologram may diffractively decouple the three colors of optical radiation for off-plane propagation to form a multicolor holographic image in free space.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.