Use of LEDs and light-guiding foils for improving light-use efficiency in plants.
Abstract
Growth and development of plants depend on the spectral composition and the intensity of the available light. To minimize energy costs and optimize the growth and quality of plants, the light intensity and color is essential in artificial lighting systems. As a rule, in both commercial and scientific applications, the light intensity should be homogeneous and of a controlled spectral composition. Light-emitting diodes (LEDs) offer a flexible approach to high-intensity light sources allowing for a well-regulated spectral composition, and are increasingly used in commercial crop production. The strongly focused light beam in many LED arrangements maximizes the radiation transmission to plants, but can lead to a very heterogeneous light. Although a greater distance between the light source and the plants can partially solve the problem, this also results in wasted light energy that does not benefit the plants. Therefore, it seems obvious to use optical measures such as lenses or reflecting surfaces to achieve uniform light. This project is designed to analyze the potential for the use of innovative lighting optimization solutions in the stimulation of plant growth. The aim of the project is to investigate the use of optical light-steering films to optimize the use of light by plants under artificial lighting.
keywords Plant Growth LEDs Diffuse Light Photosynthesis Leaf Anatomy
Publikationen
Project staff
Daniel Tholen
Ass.Prof. Dr. Daniel Tholen
daniel.tholen@boku.ac.at
Tel: +43 1 47654-83112
Project Leader
01.11.2016 - 31.08.2017
Peter Hietz
Univ.Prof. Mag.rer.nat. Dr.rer.nat. Peter Hietz
peter.hietz@boku.ac.at
Tel: +43 1 47654-83110
Sub Projectleader
01.11.2016 - 31.08.2017
Josef Gadermaier
Dipl.-Ing. Josef Gadermaier
josef.gadermaier@boku.ac.at
Tel: +43 1 47654-91224
Project Staff
01.11.2016 - 15.08.2017
BOKU partners
External partners
EcoCan GmbH
none
partner