Invention Grant
- Patent Title: Optical film
- Patent Title (中): 光学胶片
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Application No.: US12678676Application Date: 2008-07-25
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Publication No.: US08503082B2Publication Date: 2013-08-06
- Inventor: Dale L. Ehnes , Mark E. Gardiner , Alan B. Campbell
- Applicant: Dale L. Ehnes , Mark E. Gardiner , Alan B. Campbell
- Applicant Address: US MN Saint Paul
- Assignee: 3M Innovative Properties Company
- Current Assignee: 3M Innovative Properties Company
- Current Assignee Address: US MN Saint Paul
- Agent Daniel J. Iden
- International Application: PCT/US2008/071122 WO 20080725
- International Announcement: WO2009/042286 WO 20090402
- Main IPC: G02B27/10
- IPC: G02B27/10

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.
Public/Granted literature
- US20110032623A1 OPTICAL FILM Public/Granted day:2011-02-10
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