title: Determination of the absolute order of shadow moiré fringes by using two differently colored light sources.
abstract: We present a simple method of determining the absolute order of shadow moiré fringes by using two differently colored light sources. This technique is based on the periodic color structures generated by superimposing two moiré patterns with different colors.
authors.forename: K C
authors.initials: KC
authors.lastname: Yuk
authors.forename: J H
authors.initials: JH
authors.lastname: Jo
authors.forename: S
authors.initials: S
authors.lastname: Chang