Packaged illuminating device
US10680151B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 24, 2019 |
| Grant date | Jun 9, 2020 |
| Priority date | — |
| Expiry date | Jan 24, 2039 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02B20/30
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A packaged illuminating device includes a hybrid light emitting device, a first plurality of bonding wires, a linear constant current circuit, a soldering plate, a second plurality of bonding wires and a protection layer. The hybrid light emitting device includes a plurality of illuminating elements having different or partially same luminance properties. The plurality of illuminating elements are disposed in respective proximities. The linear constant current circuit is electrically coupled to the hybrid light emitting device via the first plurality of bonding wires at a first plurality of pins of the linear constant current circuit. The linear constant current circuit powers up the plurality of illuminating elements using a constant DC voltage and controls duty cycles. The protection layer encapsulates the hybrid light emitting device, the first plurality of bonding wires, the linear constant current circuit, and the second plurality of bonding wires with the aid of the soldering plate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.