Lighting device and manufacturing method thereof
US10634286B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 7, 2017 |
| Grant date | Apr 28, 2020 |
| Priority date | — |
| Expiry date | Dec 7, 2037 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF21Y2115/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A lighting device includes a translucent shell, a core stem, a base and a light bar module. The light bar module is composed of a plurality of light bars. The core stem extends upwardly from the base. The light bar module is composed of a plurality of light bars. The present invention also provides a method of manufacturing a lighting device including: making a light bar module, making a core stem, hanging the light bar module to the core stem, installing the bulb shell, and installing the driving piece and the lamp cap. The lighting device helps to obtain a better optical effect, and makes the light bar module get a better heat dissipation condition.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.