Luminaire with a sensor that varies its activation in response to the presence or absence of objects
US9220147B2 · kind B2 · utility
3Cited by
0References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 5, 2012 |
| Grant date | Dec 22, 2015 |
| Priority date | — |
| Expiry date | Dec 5, 2032 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02B20/40
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A luminaire (1a, 1b) and a method for controlling a luminaire are disclosed. The luminaire (1a, 1b) comprises a light source (2) and an ultrasonic sensor (3). The ultrasonic sensor (3) detects the presence and direction of movement of a person (4) with respect to the light source (2). A controller modifies a lighting parameter emitted from the light source (2) depending on whether a person (4) is moving towards or away from the light source (2).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.