A method and apparatus are provided for mapping the surface morphology of an object in order to detect and repair structural defects in the object or to distinguish surface features. A beam of light having a single frequency, such as a laser, is scanned across a plurality of locations on the object's...http://www.google.fr/patents/US4807991?utm_source=gb-gplus-shareBrevet US4807991 - Method of inspecting and repairing a structural defect in the surface of an object
Method of inspecting and repairing a structural defect in the surface of an ...
