Light source module including transparent member with meta-surface and electronic device comprising the same
US10920957B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 28, 2019 |
| Grant date | Feb 16, 2021 |
| Priority date | — |
| Expiry date | Mar 28, 2039 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF21Y2115/30
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
In an embodiment, a light source module may include a substrate, a light emitter comprising a light source disposed on one surface of the substrate and including an array of light emitting elements configured to emit light, a support disposed on the one surface of the substrate and accommodating at least a portion of the light emitter, and a transparent member comprising transparent material disposed over the support. The transparent member may include a pattern layer disposed on a first surface of the transparent member and configured to change a pattern of the light output from the light emitting elements, and a first meta-surface disposed on a second surface of the transparent member and including a plurality of first unit structures configured to change an angle of the light that passed through the pattern layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.