Color separation lighting devices
US11859778B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 21, 2022 |
| Grant date | Jan 2, 2024 |
| Priority date | — |
| Expiry date | Dec 21, 2042 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02B20/40
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
In embodiments, a first light engine produces a first light spectrum having a first CCT. A second light engine produces a second light spectrum having a second CCT. The first light spectrum is emitted from a first region of an enclosure; a second light spectrum is emitted from a second region; and a mixture is emitted from a third region that separates the first and second regions. The second CCT is less than the first CCT; a difference between the first and second CCTs is at least 10,000K. The first light spectrum may have a first emission peak in a range of 450 to 480 nm and a second emission peak in a range of 380 to 420 nm. The second light spectrum may have a third emission peak in a range of 480 to 500 nm and a fourth emission peak in the range of 450 to 480 nm.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.