The CONTACT MODULE (1/Tab.&ldquo；A&rdquo；) is connected to a binocular optical system. The fibre optics concentrator (5/Tab.&ldquo；A&rdquo；) with a particular spiral layout of the fibres to the connector (2/Tab.&ldquo；A&rdquo；), connected to a suitable light source, lightens, by means of the immersed contact glass, (7/Tab.&ldquo；A&rdquo；), the area to be examined to obtain the best light penetration and a tridimensional visualization. The light passing through the diaphragms (3 and 4/Tab.&ldquo；A&rdquo；) can be shuttered adjusting the intensity and the semi-circle of the concentrator (9/Tab.&ldquo；A&rdquo；). The particular shape of the module permits an easy positioning on the area to be examined. The module finds its specific application in dermatology, for the examination of skin lesions. All the binocular optical systems actually used work with no-contact and the diffused light beam is perpendicular to the area to be visualized, in a way that makes them unsuitable for this purpose at present, even though they are the only systems that give the best definition.
