Multi-coloured light sources
US9784416B2 · kind B2 · utility
1Cited by
2References
16Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 27, 2012 |
| Grant date | Oct 10, 2017 |
| Priority date | — |
| Expiry date | Dec 5, 2032 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF21Y2115/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Described herein is a light array for luminaires which comprises a plurality of coloured light-emitting diode (LED) elements that are arranged within the array to provide better uniformity of illumination. The light array may be rectangular and include equal numbers of colored LED elements of four colors. The red LED elements are grouped towards the center of the light array with the other colors dispersed throughout the array. Two or more light arrays can be placed adjacent one another to increase the illumination produced whilst maintaining the benefit of better uniformity of illumination.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.