Meta illuminator
US11353626B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 26, 2018 |
| Grant date | Jun 7, 2022 |
| Priority date | — |
| Expiry date | May 14, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S5/423
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Provided are meta illuminators. The meta illuminators according to embodiments include a first light emitter configured to emit pattern light, and a second light emitter configured to emit non-patterned light, wherein the first and second light emitters forms a single body. The first and second light emitters respectively include meta-surfaces that are different from each other, and the different meta-surfaces may be formed on a single material layer. The first light emitter includes a pattern region that transmits a portion of incident light, and the second light emitter does not include the pattern region. A mask may be arranged between the light source and the transparent substrate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.