Invention Grant
- Patent Title: Light redirecting film laminate
- Patent Title (中): 光重新定向薄膜层压板
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Application No.: US13514429Application Date: 2010-12-14
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Publication No.: US09244206B2Publication Date: 2016-01-26
- Inventor: Raghunath Padiyath , Charles A. Marttila , Mark K. Nestegard
- Applicant: Raghunath Padiyath , Charles A. Marttila , Mark K. Nestegard
- Applicant Address: US MN St. Paul
- Assignee: 3M Innovative Properties Company
- Current Assignee: 3M Innovative Properties Company
- Current Assignee Address: US MN St. Paul
- Agent Jeffrey M. Olofson
- International Application: PCT/US2010/060165 WO 20101214
- International Announcement: WO2011/084391 WO 20110714
- Main IPC: G02B5/20
- IPC: G02B5/20 ; G02B5/04 ; E06B9/00

Abstract:
Light management film constructions contain a first optical film having a first major surface and a second major surface opposite the first major surface. The first major surface is a microstructured surface with asymmetrical structures. The asymmetrical structures form an ordered arrangement of a plurality of multi-sided refractive prisms, with the multi-sided refractive prisms having a cross section of 3 or greater sides. A second optical film contacts and is bonded to substantially all of the structures of the first major structured surface of the first optical film. The light management constructions can be incorporated into optical articles such as windows.
Public/Granted literature
- US20120327507A1 LIGHT REDIRECTING FILM LAMINATE Public/Granted day:2012-12-27
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