Conoscopic Holography measures distances by using the polarization properties of a converging light cone that reflects from an object. At the core of the technology stands an anisotropic crystal: the ray traversing the crystal splits into two components which share the same path but have orthogonal polarizations. The crystal’s anisotropic structure forces each of the polarized light rays to propagate at a different velocity, thus creating a phase difference between them. This phase difference enables the formation of an interference pattern which varies with the distance from the object under measurement.
How does the sensor
The sensor emits laser beam which is projected onto the measured object. All of the reflected rays that
are collected by the objective lens enter the conoscopic module. The resulting interference pattern is analyzed to determine the distance to the object.