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NAPAT WATJANATEPIN1,*
The goal of this study is to design and analyse the PAR spectrum, R/B photon flux ratio of the LED light. Six types of LED were used as light sources. The R/B ratio was controlled by the tunable resistor technique with LabVIEW. LED photon flux was measured by the spectroradiometer. The result confirmed that supplying the specific high quality of PAR spectrum is possible. This idea could be applied to plant experiments that involve the effect of red and blue LED light with more advantages than the previous LED light sources that mixed the R/B ratio by varying number of LED..
R/B photon flux ratio, Tunable R/B ratio, LED for plantation, PAR spectrum.
NAPAT WATJANATEPIN, Design and analysis of the PAR spectrum of the tunable red: blue actual photon flux ratio of the LED lighting system, Optoelectronics and Advanced Materials - Rapid Communications, 12, 11-12, November-December 2018, pp.652-659 (2018).
Submitted at: April 11, 2018
Accepted at: Nov. 29, 2018
Optoelectronics and Advanced Materials - Rapid Communications
(2022): 0.5 - 2022 Journal Citation Reports (Clarivate Analytics, 2023)
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