Meta projector and electronic apparatus including the same
US11042243B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 29, 2018 |
| Grant date | Jun 22, 2021 |
| Priority date | — |
| Expiry date | Aug 9, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S5/343
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A meta projector includes an edge emitting device configured to emit light through a side surface thereof, a meta-structure layer spaced apart from the upper surface of the edge emitting device that includes a plurality of nanostructures having a sub-wavelength shape dimension smaller than a wavelength of the light emitted from the edge emitting device, and a path changing member configured to change a path of the light emitted from the edge emitting device so as to direct the path toward the meta-structure layer. The meta projector may thus be configured to emit a light pattern of structured light, based on directing the light emitted from the edge emitting device through the meta-structure layer, while having a relatively compact device size.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.