Relating to luminaires
US10349497B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Sep 13, 2016 |
| Grant date | Jul 9, 2019 |
| Priority date | — |
| Expiry date | Sep 13, 2036 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02B20/40
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A method of providing power for non-lighting related loads in which operate during daylight hours when a lighting dedicated switched mains network (220) is switched off is described. The method comprises charging a battery (240) at night from the mains network when the luminaire is switched on so that the energy/power stored in the battery can be used during the day. A luminaire (200) comprises a luminaire light engine (210) connected the mains network (220), an AC/DC down converter (230) also connected to the mains supply so that the battery (240) is charged during the hours of darkness. The battery (240) is connected to provide power to a DC non-lighting related load (250) which is operable both during daylight hours and hours of darkness.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.