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:
May. 05, 1981
Filed:
May. 04, 1979
Applicant:
Inventor:
Ivan Ladany, Stockton, NJ (US);
Assignee:
RCA Corporation, New York, NY (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
B44C / ; C03C / ; C03C / ;
U.S. Cl.
CPC ...
156657 ; 65 31 ; 156663 ; 252 793 ; 350 9618 ;
Abstract
A method for reducing the diameter of the end of an optical fiber while leaving the fiber end flat or slightly concave so that a lens can be formed thereon. The fiber end is etched in a solution of aqueous hydrofluoric acid to which is added ammonium fluoride, ammonium bifluoride or a combination thereof.