Kc. Yuk et al., DETERMINATION OF THE ABSOLUTE ORDER OF SHADOW MOIRE FRINGES BY USING 2 DIFFERENTLY COLORED LIGHT-SOURCES, Applied optics, 33(1), 1994, pp. 130-132
We present a simple method of determining the absolute order of shadow
moire fringes by using two differently colored light sources. This te
chnique is based on the periodic color structures generated by superim
posing two moire patterns with different colors.