LED lighting system and operating method for irradiation of plants
US9857068B2 · kind B2 · utility
Inventors
Key dates
| Filing date | Feb 19, 2016 |
| Grant date | Jan 2, 2018 |
| Priority date | — |
| Expiry date | Jun 25, 2036 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P60/14
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An LED illumination system is operable to irradiate plant materials with photosynthetically active radiation. A lighting assembly includes a plurality of different LED types. Each LED lamp has a different spectral power matched to an absorption peak of the plant materials. All of the LED lamps of each different lamp type are driven by a different dedicated power source. Each power source can be independently modulated to vary the collective spectral power output of the LED illumination system. The lighting assembly includes fluid conduits disposed proximate to the LED lamps and a cooling fluid is flowed through the fluid conduits to removed thermal energy from the LED lamps.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.