Unevenness Evaluation of Paint

Raman image of the painting of drink can is shown. 785nm excitation is used to avoid fluorescence emission from the sample. Green color shows substrate. Blue and red color shows the unevenness distribution of two coating compounds. Excitation wavelength: 785nm, Objective lens: x20(NA0.45), Grating: 600 gr/mm.

Unevenness Evaluation of Paint
▲Raman image of the painting of drink can Measurement time: 10 mins (40,000 spectra = 400(y) ×100(x) pixel)