This content is not included in your SAE MOBILUS subscription, or you are not logged in.
Plant Research Unit Lighting System Development
ISSN: 0148-7191, e-ISSN: 2688-3627
Published July 19, 2004 by SAE International in United States
Annotation ability available
As part of the PRU project a new plant lighting system has been developed. System design focused on light source development, chamber optical performance improvements and electronics optimization. Central to the lighting system performance is a high density LED Light Engine, enabling increased spectral diversity, higher irradiance levels, enhanced uniformity and improved efficiency. Chamber wall surface materials were tested to minimize the vertical irradiance gradient and improve planar uniformity. Total lighting system efficiency was improved through the use of switching converter LED drive circuitry. As an alternative to the LED light source, an advanced planar fluorescent lighting source has also been developed.