Lighting device
US11513278B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 25, 2021 |
| Grant date | Nov 29, 2022 |
| Priority date | — |
| Expiry date | Aug 25, 2041 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P60/14
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A lighting device includes a plurality of first lighting units emitting a first output light. Each of the first lighting units includes a first light source, a first reflective layer, and a first light converting structure. The first light source is configured to provide the first output light. The first reflective layer is configured to reflect the first output light. The first light converting structure is configured to convert the first output light. The first output light has a sub peak between 400 nm and 500 nm and a main peak between 590 nm and 780 nm, and a normal intensity of the sub peak is greater than a tilt intensity of the sub peak. The normal intensity is measured along a normal direction, the tilt intensity is measured along a tilt direction, and the normal direction is different from the tilt direction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.