Abstract: A device for optically connecting an optical element, for example an end portion of an optical fibre (2), with a spherical lens (4), comprises a retainer (6) and a connector element (14). The retainer (6) fixes the optical element in a predeterment position in relation to an outer reference surface (8) of the retainer. The connector element (14) has at least one surface (18) for determining the position of the spherical lens (4) and at least one surface (16) for determining the position of the retainer (6) in relation to the spherical lens (4) and thereby for defining the relative position between the optical element (2) and the spherical lens (4). The surface (18) for determining the position of the spherical lens (4) is constituted by a conical surface (18) tapering in the direction of the optical element (2).