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. 06, 2013
Filed:
Jul. 25, 2008
Dale L. Ehnes, Cotati, CA (US);
Mark E. Gardiner, Santa Rosa, CA (US);
Alan B. Campbell, Santa Rosa, CA (US);
Dale L. Ehnes, Cotati, CA (US);
Mark E. Gardiner, Santa Rosa, CA (US);
Alan B. Campbell, Santa Rosa, CA (US);
3M Innovative Properties Company, Saint Paul, MN (US);
Abstract
Optical films having anti-Moiré and anti-wetout features are described, along with systems and methods for making these optical films. A master used to make optical films is formed using a single axis actuator cutting along a trajectory that is out of plane with the surface of the master. Movement of the cutting tool along the trajectory cuts grooves having variable depth and variable pitch into the surface. Prisms formed from the master have variable depth, variable height prisms that provide anti-wetout and anti-Moiré features.