Optical detection method for separating surface and deepness

摘要

This invention relates to an optical detection method for non-contact measuring an object and separating the surface and deep information of a medium in an object. A light beam that irradiates on the object from an incident unit is received by a receiving unit and detected by a detector. The separation of the surface and deep information of the medium can be achieved by a measuring system, wherein the optical probes don't contact the object. In the present invention, the incident unit and receiving unit can be configured according to polarization method, optical baffle method, space imaging method and Brewster angle method etc.