Circadian-friendly and distance-responsive lighting system
US11666728B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 31, 2017 |
| Grant date | Jun 6, 2023 |
| Priority date | — |
| Expiry date | Aug 12, 2039 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02B20/40
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A system to provide circadian-friendly lighting for nighttime hospital care comprising a lighting module and a transmitter tag that interface wirelessly wherein the lighting module comprises red-shifted light spectra, which is proven to be less disruptive to melatonin production than current blue-shifted hospital lighting; wherein the light output of the devices is modulated by the proximity of a tag to the device, with light intensity increasing with closer proximity between these two components and decreasing with increased distance, thereby providing hands-free lighting to caregivers in the specific locations where they need light to perform care tasks.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.