Lighting device LED module with effects for color temperature tuning and color tuning
US10470270B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 15, 2018 |
| Grant date | Nov 5, 2019 |
| Priority date | — |
| Expiry date | Nov 15, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10H20/856
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A lighting system includes a lighting device that further includes a housing, and light emitting diode (LED) modules positioned in an opening of the housing to emit light away from the housing. Each LED module includes a substrate, a plurality of module-level conductors, and a plurality of LED sets, each of which comprises a first section including a first group of LEDs, one or more additional sections (each including an additional group of LEDs), a first conductive element that electrically connects the first section to a first one of the module-level conductors, and one or more additional conductive elements. The lighting system also includes control circuitry configured to generate commands to control drive currents delivered to a first group of LEDs in each LED set and each additional group of LEDs in each LED set so that the lighting device emits light of a specified color temperature.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.