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:
Jun. 13, 2017
Filed:
Feb. 19, 2016
3m Innovative Properties Company, St. Paul, MN (US);
Edward J. Kivel, Stillwater, MN (US);
Timothy J. Nevitt, Red Wing, MN (US);
Michael F. Weber, Shoreview, MN (US);
3M INNOVATIVE PROPERTIES COMPANY, Saint Paul, MN (US);
Abstract
A broadband mirror, polarizer, or other reflector includes at least one stack of microlayers. Microlayers in the stack are arranged into optical repeat units. At a design angle of incidence such as normal incidence, the stack provides a 1order reflection band, a 2order reflection band, and optionally a 3order reflection band. The 2order reflection band overlaps, or substantially overlaps, the 1and/or 3order reflection bands to form a single wide reflection band. The wide reflection band may include the 2and 1but not a 3order reflection band, or the 2and 3but not the 1order reflection band, or it may include the 1, 2, and 3order reflection bands, as well as still higher order reflection bands. The wide reflection band may cover at least a portion of visible and infrared wavelengths.