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:
Aug. 22, 2006
Filed:
Dec. 31, 2002
Andrew T. Ruff, Mendota Heights, MN (US);
James M. Jonza, Woodbury, MN (US);
Timothy J. Hebrink, Oakdale, MN (US);
Laurence R. Gilbert, Marine on St. Croix, MN (US);
Andrew T. Ruff, Mendota Heights, MN (US);
James M. Jonza, Woodbury, MN (US);
Timothy J. Hebrink, Oakdale, MN (US);
Laurence R. Gilbert, Marine on St. Croix, MN (US);
3M Innovative Properties Company, St. Paul, MN (US);
Abstract
A multilayer optical polarizing film has optical layers whose refractive indices substantially match along orthogonal in-plane x- and y-axes, and that mismatch along a z-axis by at least 0.1 and in some cases by at least 0.15. The film has substantially no reflection bands at normal incidence, and for obliquely incident light has at least one reflection band, for p-polarized light only, that monotonically increases and that shifts to shorter wavelengths as the incidence angle increases.