Development of a Reconfigurable LED Plant-growth Lighting System for Equivalent System Mass Reduction in an ALS
When overhead electric lights are used for plant growth, inefficiency occurs due to inability to accurately target light. Light falls between young plants, but as they grow, shading occurs, requiring more light to achieve acceptable productivity. We have developed an intracanopy light-emitting diode (LED)-based system that can deliver light throughout the foliar canopy of crop stands and keep pace with crop growth. LEDs having narrow red and blue emission wavebands were selected. An array of 16 ""Lightsicles"" was constructed, each consisting of 20, 2.5 cm\u2 LED ""light engines"" containing 80 LEDs mounted along a strip. Measurements of light level and power usage have been taken and plant growth testing is underway.
Date of this Version
SAE Document Number: 2005-01-2955
ALS NSCORT Project Number
Project 11 - Crop Lighting Project
Cary A. Mitchell
ALS NSCORT Series
Dave Kotterman, email@example.com
Copyright 2005 SAE International. For additional information please visit the intellectual property section of the publisher's website: http://www.sae.org/about/intelproperty/ or the publisher's home page at: http://www.sae.org
This article is not available through e-pubs. To purchase a copy of this article visit: http://www.sae.org/technical/papers/2005-01-2955. This article is available on CD-ROM at Purdue University's Engineering Library.
This document is currently not available here.