Device for locating a surface with the help of a light plane

摘要

A probe light beam 6 converges on a focusing line 8 and forms a luminous mark on the surface to be located 10 which is, for example, a face of a cutting tool 18 which has undergone wear during use. This mark is examined by a sight member 14 which forms an image of the said mark on a photosensitive matrix 16 and thus supplies a processing member 28 with information on the displacement which this face has undergone. According to the invention the probe beam is formed by a spherical mirror. Application to machining. <IMAGE>