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. 24, 2004
Filed:
Jun. 28, 2002
Applicant:
Inventors:
Michael F. Weber, Shoreview, MN (US);
Roger J. Strharsky, Woodbury, MN (US);
Timothy J. Nevitt, Red Wing, MN (US);
Andrew J. Ouderkirk, Woodbury, MN (US);
Assignee:
3M Innovative Properties Company, St. Paul, MN (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B 5/08 ; G02B 1/10 ; F21V 9/04 ;
U.S. Cl.
CPC ...
G02B 5/08 ; G02B 1/10 ; F21V 9/04 ;
Abstract
Optical filters and their manufacture, as well as the use of the optical filters in optical devices, such as polarizers and mirrors are described. The optical filters typically include a first reflective multilayer film, a second reflective multilayer film, and a lossy element disposed between the first and second reflective multilayer films.