Intelligent light retrofit
US8508149B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 3, 2010 |
| Grant date | Aug 13, 2013 |
| Priority date | — |
| Expiry date | Oct 17, 2031 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49716
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An apparatus and method of retrofitting a light fixture are disclosed. One method includes interfacing a retrofit controller with a dimming ballast of the light fixture, connecting the retrofit controller to at least one sensor, and connecting the retrofit controller to a power supply and a network. Another embodiment includes a light fixture retrofit controller and a separate sensor unit. The combination of the retrofit controller and a separate sensor unit are operative to provide power and dimming control of a dimming ballast of an existing light fixture. The dimming control is base on at least one of a signal sensed by the separate sensor unit and control information received from a network.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.