Invention Grant
- Patent Title: Dual-sided daylight redirecting film
- Patent Title (中): 双面日光重定向胶片
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Application No.: US14232695Application Date: 2012-07-17
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Publication No.: US09250368B2Publication Date: 2016-02-02
- Inventor: Raghunath Padiyath , Charles A. Marttila , Bing Hao
- Applicant: Raghunath Padiyath , Charles A. Marttila , Bing Hao
- 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/US2012/047054 WO 20120717
- International Announcement: WO2013/012858 WO 20130124
- Main IPC: G02B5/04
- IPC: G02B5/04 ; E06B9/24 ; F21S11/00

Abstract:
Dual-sided daylight redirecting films include an optical substrate with two solar light redirecting layers disposed on the major surfaces of the optical substrate. The light redirecting layers are microstructured surfaces forming a plurality of prism structures. At least one of the microstructured surfaces is an ordered arrangement of a plurality of asymmetric refractive prisms, and the two solar light redirecting layers are not identical or mirror images. Articles may be prepared that include the dual-sided daylight redirecting film and one or more glazing substrates.
Public/Granted literature
- US20140198390A1 DUAL-SIDED DAYLIGHT REDIRECTING FILM Public/Granted day:2014-07-17
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