MOIRE DEVICE USING DIGITAL MICROMIRROR DEVICE

摘要

A Moire device using a digital micromirror device is provided to reduce a measuring time by measuring two kinds of lattices with different colors in one frame at the same time using a color camera. An optical source(100) produces the collimated light. Two kinds of filters have different colors and make one frame. A DMD(Digital Micromirror Device)(300) generates a lattice pattern about the filter with different colors. A projection lens(400) projects the lattice pattern to one object. An imaging lens(600) receives respective lattice pattern which is projected to the object and transformed. A camera sensor(700) calculates an initial phase value by the sum of the received lattice pattern.