| 摘要 |
PURPOSE: A device for measuring the shape of moire using a LCD panel is provided to make the controlling of direction and pitch easy using the characteristic of LCD. CONSTITUTION: A device for measuring the shape of moire using a LCD panel comprises a light source(1), a tunable grating, imaging lenses(5,6), a photo diode(7), am operation unit, and a drive unit(9). The light source radiates the light. The tunable grating generates the projection grating pattern by penetrating the outgoing light. The imaging lenses image the lattice pattern reflected from an object. The photo diode light receives the reflected light of the lattice pattern passing the imaging lens. The operation unit computes the shape of the object, forms the moire fringe by overlapping the lattice pattern light-received from the photo diode, and previously stores the standards lattice pattern. The drive unit adjusts the direction and the pitch to form the lattice of the tunable grating.
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