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:
Nov. 02, 1993
Filed:
Mar. 18, 1992
Applicant:
Inventor:
Lee M Cook, Spencer, MA (US);
Assignee:
Galileo Electro-Optics Corporation, Sturbridge, MA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02B / ;
U.S. Cl.
CPC ...
385120 ; 385115 ; 385123 ;
Abstract
An FOFP has a darkened surface layer in the cladding portion to reduce cross-talk. One embodiment has an intagliated surface with darkened cavity walls. Darkening is achieved on a finished piece without further reworking. The surface is substantially free of fluorescence and is substantially non-conductive.