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:
Jan. 13, 2009
Filed:
Dec. 22, 2005
Jiaying MA, Maplewood, MN (US);
Michael K. Domroese, Woodbury, MN (US);
Stephen K. Eckhardt, White Bear Lake, MN (US);
Glendon D. Kappel, Eagan, MN (US);
Hamid R. Mortazavi, Woodbury, MN (US);
Michael J. Raykowski, Lake Elmo, MN (US);
Jiaying Ma, Maplewood, MN (US);
Michael K. Domroese, Woodbury, MN (US);
Stephen K. Eckhardt, White Bear Lake, MN (US);
Glendon D. Kappel, Eagan, MN (US);
Hamid R. Mortazavi, Woodbury, MN (US);
Michael J. Raykowski, Lake Elmo, MN (US);
3M Innovative Properties Company, St. Paul, MN (US);
Abstract
An optical unit that includes a polarizing beamsplitter (PBS). The PBS includes a reflective polarizer that transmits a portion of a light beam that has a first polarization and reflects a portion of the light beam that has a second polarization. A light absorbing device is operatively disposed relative to the PBS. The light absorbing device receives the light either transmitted or reflected by the PBS. The light absorbing device includes a light capture portion having a structured surface.