Light emitting device
US11187385B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 11, 2020 |
| Grant date | Nov 30, 2021 |
| Priority date | — |
| Expiry date | Sep 11, 2040 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10H20/853
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A light emitting device includes a first metal plate, a second metal plate, and light emitting elements between the metal plates. The device further includes a wavelength conversion member excited by a first light from the light emitting elements to emit a second light having a wavelength different from the first light, a bulb including a base, a first lead connected to the first metal plate, and a second lead connected to the second metal plate. The base of the bulb includes terminals connected to respective leads. The conversion member covers the light emitting elements entirely, opposite surfaces of the first metal plate partially, and opposite surfaces of the second metal plate partially. The first lead is connected to a portion of the first metal plate exposed from the conversion member, and the second lead is connected to a portion of the second metal plate exposed from the conversion member.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.