Electric lighting devices having multiple light sources to simulate a flame
US9756707B2 · kind B2 · utility
4Cited by
21References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 30, 2014 |
| Grant date | Sep 5, 2017 |
| Priority date | — |
| Expiry date | Jan 30, 2034 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF21Y2115/10
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Electric lighting devices are described that utilize three or more light sources to generate a flickering flame effect. The light sources can emit light at different colors to more closely simulate the look of a flame. A projection system having a matrix of LEDs could be used to project an image of a flame on to a projection surface without the need or cost associated with a traditional or pico projector.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.