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:
Feb. 05, 2008
Filed:
Mar. 31, 2006
Shandon D. Hart, Maplewood, MN (US);
Keith M. Kotchick, St. Paul, MN (US);
William J. Kopecky, Hudson, WI (US);
Patrick R. Fleming, Lake Elmo, MN (US);
Kristin L. Thunhorst, Stillwater, MN (US);
Shandon D. Hart, Maplewood, MN (US);
Keith M. Kotchick, St. Paul, MN (US);
William J. Kopecky, Hudson, WI (US);
Patrick R. Fleming, Lake Elmo, MN (US);
Kristin L. Thunhorst, Stillwater, MN (US);
3M Innovative Properties Company, St. Paul, MN (US);
Abstract
A spiral wound fiber that includes birefringent interfaces is useful in different optical devices. One type of wound fiber includes at least first and second material layers. At least one of the layers is polymeric and at least one of the layers is birefringent. The spiral wound fiber may be used alone, or in an optical device. Such an optical device can include the fiber embedded within a matrix or attached to a substrate. The spiral wound fiber can be made by rolling a stack of at least two layers, by coextruding the two layers or by coating a rotating form.