Patent ID: 7609384
Filing Date: 2009-10-27
Classification: G01B,G03H

Abstract:
1. A device for generating a carrier in an interferogram of the real-time holographic interferometry type or of the double-exposure holographic interferometry type, comprising: a recorder that records a first wave front hologram, by recording interference of an object beam and a reference beam, the object beam diffused by an object and transmitted to a material of holographic environment, and the reference beam transmitted to the material of holographic environment, wherein a first wave front is comprised of the object beam and the reference beam; a plurality of lenses through which the first wave front and a second wave front pass, the second wave front comprised of at least an object beam diffused by the object and transmitted to the material of holographic environment at a time later than the object beam of the first wave front; a birefringent crystal through which the two wave fronts pass that orthogonally polarizes the two wave fronts; at least one common polarizer through which the two wave fronts pass; and at least one detector on which an interference between the two wave fronts is formed.