Bulb-type light source
US11761591B2 · kind B2 · utility
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20Claims
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Assignee
Inventors
Key dates
| Filing date | Dec 16, 2022 |
| Grant date | Sep 19, 2023 |
| Priority date | — |
| Expiry date | Dec 16, 2042 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05K2201/10106
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A lighting device includes a substrate having a plurality of flat portions and a non-flat portion disposed between the flat portions, a plurality of light emitting sources disposed on the substrate, a fluorescent substrate layer covering one or more light emitting sources and converting a wavelength of a light from the light emitting source, and a connection line disposed on the substrate and electrically connecting the light emitting sources adjacent to each other between the adjacent light emitting sources. The substrate has a first end and a second end are arranged at different distance from a central axis.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.