Solid-state sources of light for preferential colour rendition
US9370072B2 · kind B2 · utility
1Cited by
12References
16Claims
0Family size
Assignee
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Key dates
| Filing date | Feb 28, 2013 |
| Grant date | Jun 14, 2016 |
| Priority date | — |
| Expiry date | Feb 28, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10H20/851
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Polychromatic light sources of white light, which have spectral power distributions composed of at least three different components, such as clusters of colored light-emitting diodes (LEDs) or LEDs with partial or complete conversion in phosphors. Disclosed are the peak wavelengths and relative partial radiant fluxes of the spectral components that allow rendering certain fractions of an extended color palette with high fidelity and with increased chromatic saturation, respectively, and hence meeting subjective preferences to color quality of illumination.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.