Lighting system and method for controlling a light intensity and a color temperature of light in a room
US9345090B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 2, 2014 |
| Grant date | May 17, 2016 |
| Priority date | — |
| Expiry date | Jan 2, 2034 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02B20/40
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The present invention relates to a lighting system (10) arranged to control a light intensity and a color temperature of light in a room (1). The lighting system comprising: a light source (12) arranged to emit light, the light source (12) comprising a first and second light emitters (13, 14) each being adjustable between a number of light intensity levels and arranged to emit light having a first and second color temperature, respectively. The light source (12) is arranged to provide an output signal (OS) comprising information pertaining to a light intensity level of said first and second light emitters (13, 14), respectively; a light sensor (16) arranged to measure the light intensity and the color temperature of the light in the room, and to provide a sense signal (SS) comprising information pertaining to the measured light intensity and color temperature; and a controller (18) arranged to control the color temperature and the light intensity of the light in the room (1) by adjusting the light intensity level of said first and second light emitters (13, 14), based on said sense signal (SS) provided by the light sensor (16) and said output signal (OS) provided by the light sourc…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.