LED structure with a dynamic spectrum and a method
US10104740B2 · kind B2 · utility
Inventor
Key dates
| Filing date | Jun 8, 2017 |
| Grant date | Oct 16, 2018 |
| Priority date | — |
| Expiry date | Jun 8, 2037 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P60/14
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
An integrated LED structure and a method of adjusting the emission spectrum of an integrated LED structure, for photobiological process. The structure comprises a substrate; a plurality of optically isolated and electrically non-independent light emission areas integrated on the substrate; a light emitting semiconductor source of a first type mounted in the emission area(s); a light emitting semiconductor source of a second type mounted in the emission area(s); an electrical circuit layer for connecting the said light emitting semiconductor sources in serial fashion for each emission area; and wavelength conversion materials. The emission areas are controlled with a common electrical drive current, and the emission output can be tuned by adjusting the common current value, to enable use of one luminaire for a large variety of biomass growing applications.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.