The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 07, 1987
Filed:
Oct. 22, 1984
Vera Russo, Florence, IT;
Stefano Sottini, Florence, IT;
Giancarlo Righini, Florence, IT;
Silvana Trigari, Florence, IT;
Consiglio Nazionale Delle Ricerche Roma, Rome, IT;
Abstract
The method for constructing microlens ends for optical fibres, particularly for biomedical and/or surgical use, is characterised by propagating in the optical fibre a radiation of the type used during the application of the fibre itself, and to which said fibre is transparent, and converting the wavelength of the radiation, outside to the fibre and in proximity to its output end, which has been previously cut along a plane orthogonal to its axis, into a band of wavelengths which can be absorbed by the fibre, for a time sufficient to cause localized fusion of the end. In order to implement this method, the invention also provides for the use of a device comprising a block of material which converts radiation and is provided with a flat surface, a support which keeps the fibre orthogonal to said flat surface and with its previously cut end facing said flat surface, and means for varying in a controlled manner, preferably by micrometric regulation, the distance between the fibre end and the said flat surface of the block of material.