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:
Jan. 06, 1998
Filed:
Sep. 19, 1995
Applicant:
Inventors:
Enrico Serafini, Milan, IT;
Alberto Zucchinali, Seregno, IT;
Fabrizio Marani, Cinisello Balsamo, IT;
Massimiliano Martino, Malnate, IT;
Assignee:
Sirti S.p.A., , IT;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B / ;
U.S. Cl.
CPC ...
385 75 ; 385140 ; 385 38 ; 385 72 ;
Abstract
An optical filter comprising two ferrules containing a respective duct internally housing a respective portion of optical fibre; the two ferrules are inserted axially aligned within an alignment bush, between said two ferrules there being inserted a vitreous support on which a layer of optically active filtering material is deposited. A method for constructing said optical filter is also described.