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:
Sep. 23, 1986
Filed:
Sep. 10, 1984
Ulrich Deserno, Munich, DE;
Gunther Schmidt, Freising, DE;
Siemens Aktiengesellschaft, Berlin & Munich, DE;
Abstract
A method for visualizing the core of a monomode fiber by means of a microscope lens is disclosed, said monomode fiber comprising a jacket of undoped silica glass and its core of silica glass being doped with Geo.sub.2 or TiO.sub.2. An invisible microscope image of the core is generated in an image plane B with the microscope lens with ultraviolet light from the wavelength range between 230 nm and 380 nm and the invisible image is converted into a visible image by means of a video system, whereby the clear contrast contained in the invisible microscope image which is based upon the employment of the ultraviolet light is preserved in the visible image.