Solid state lighting devices with reduced melatonin suppression characteristics
US10349484B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | May 31, 2018 |
| Grant date | Jul 9, 2019 |
| Priority date | — |
| Expiry date | May 31, 2038 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61N2005/0652
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Solid state lighting devices with melatonin suppression characteristics that ameliorate or reduce symptoms of circadian rhythm disorders or other health conditions. Aspects disclosed herein additionally relate to providing one or more of the foregoing effects while maintaining color rendering index (CRI) values acceptably high for the intended use, as well as providing lighting devices with high luminous efficacy and enhanced energy efficiency. A solid state lighting device includes one or more solid state emitters and one or more lumiphoric materials that provide aggregated emissions of the solid state lighting device. The aggregated emissions have a warm correlated color temperature (CCT) with a color point that is off of the blackbody locus (BBL) by a certain distance.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.