Light bulb with controlled color and flicker
US10697591B1 · kind B1 · utility
4Cited by
0References
10Claims
0Family size
Inventor
Key dates
| Filing date | Aug 30, 2019 |
| Grant date | Jun 30, 2020 |
| Priority date | — |
| Expiry date | Aug 30, 2039 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02B20/30
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A low-luminance LED lamp that produces light designed for evening reading, relaxation and sleep. Low melanopic input balanced with high color rendering and a warm Correlated Color Temperature (CCT) produces a light with reduced circadian/melanopic input. An engineered LED phosphor produces a spectrum with relatively low blue and green content. This is balanced with a high CRI and the preference for warm (low-CCT) lighting in the evening.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.