Reflectance is a fundamental optical property of materials and a key parameter in spectral measurements. Different sample types primarily exhibit two reflection modes: specular reflection and diffuse reflection. Specular reflection occurs on perfectly smooth surfaces, while diffuse reflection dominates on rough or textured surfaces. Most real-world materials exhibit mixed reflection characteristics. Reflectance measurements serve multiple purposes, including determining the reflectivity of optical components, analyzing surface color properties, and identifying the chemical composition of samples.
EN
jp 
ko 
fr 
de 
es 
tr 
ru 
pt 
ar 
vi 
