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. 05, 1995
Filed:
Nov. 27, 1991
Applicant:
Inventors:
Greg E Blonder, Summit, NJ (US);
Bertrand H Johnson, Murray Hill, NJ (US);
Assignee:
AT&T Corp., Murray Hill, NJ (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B / ;
U.S. Cl.
CPC ...
385123 ; 385 94 ;
Abstract
A mixture of buffered hydrofluoric acid (e.g., HF and NH.sub.4 F) and a treating agent (e.g., acetic acid, phosphoric acid, hydrochloric acid, sulfuric acid or formic acid) is used to produce a matte finish on the pure silica cladding of an optical fiber. The matte finish may be used to increase the adhesion of other materials to the glass (e.g., of metal coatings to silica fibers) or to reduce glare.