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. 17, 1990
Filed:
Aug. 29, 1988
Donald V Couden, Boca Raton, FL (US);
Paul C Karr, Ormond Beach, FL (US);
Layton Balliet, Boca Raton, FL (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
A method and apparatus for tapping fiber optic devices is provided. An input optical fiber is connected to a graded index lense which will collimate light from the input fiber. A second graded index lense is provided in optical alignment with the first lense, which receives and decollimates the light collimated by the first lense. A sensor, such as a photodiode, is interposed between the lenses to intercept a minor portion of the light being transmitted to the second lense, and convert the sensed light to a signal indicative of a selected characteristic of the light.