Hospital lighting with solid state emitters
US8405324B2 · kind B2 · utility
1Cited by
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20Claims
0Family size
Assignee
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Key dates
| Filing date | Jun 18, 2010 |
| Grant date | Mar 26, 2013 |
| Priority date | — |
| Expiry date | May 26, 2031 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF21Y2113/13
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A solid state light emitting-based illumination system which, when energized, exhibits a correlated color temperature (CCT) in the range of between about 3300° K and about 5300° K, and exhibits a COI of less than 3.3 is provided. The system comprises two or more solid state elements, and is configured to provide a total light that appears white when energized, the combined light having preselected spectral fraction values such that when combined the emission meets the specified CCT and COI standards. A method for combining individual solid-state light emitters is also provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.