Spatial dimming
US10568176B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 1, 2017 |
| Grant date | Feb 18, 2020 |
| Priority date | — |
| Expiry date | Aug 1, 2037 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02B20/40
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An illumination source comprises an array of light-emitting elements for emitting illumination to illuminate an environment. A controller is arranged to control the illumination emitted by different ones of the light-emitting elements so as to form a spatial pattern, and to vary the spatial pattern according to a spatial dimming function whereby the spatial pattern is varied so as to emit a different overall intensity level as a function of a received dimming signal. A value is determined of at least one property relating to a manner in which the illumination source is deployed (e.g. the manner in which it is installed), and the spatial dimming function is set in dependence on the value of this property.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.