DETERMINATION OF LIGHT TRANSMITTANCE IN FRENCH LOCAL TREE SPECIES

Abstract

Wood is a multi-structural material with properties depending on its growing conditions. This variability is considered in industry through different non-destructive testing methods. Among them, the use of lasers to detect fibers orientation with different wavelengths. Our objective in this paper is to realize transmission light scattering maps for wood samples from several wood species, and then identify the most suitable wavelength to study light diffusion in wood. It was found that near-infrared light better scatters in the wood species we studied than lower wavelength. However, the wavelength that gives the best contrast between earlywood and latewood depends on the sample studied and is not necessarily in the near infrared rays.