Relative diffuse reflection measurements from the original and ground surfaces
using a He-Ne laser are reported. The intensity measurements for the metallic,
transparent dielectric, matte plastic surfaces and colored papers are presented. Our
results indicate that among metallic surfaces tested, aluminum has the highest
diffuse reflectance; while the original stainless steel surface shows the lowest. The
primary result is that for the ground metallic surfaces, there seems to be an
optimum condition and roughness that result in the maximum diffuse reflection.
For the color matte plastics, the yellow color has the highest diffuse reflectance
and the black one shows the lowest. For the colored papers the yellow paint shows
a maximum diffuse reflectance; whereas the gray one has the lowest diffuse
reflectance. Our results agree with the theoretical predictions and also with the
other experimental results.