Title:
DUAL-SIDED DAYLIGHT REDIRECTING FILM
Document Type and Number:
WIPO Patent Application WO/2013/012858
Kind Code:
A3
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.
Inventors:
PADIYATH RAGHUNATH (US)
MARTTILA CHARLES A (US)
HAO BING (US)
MARTTILA CHARLES A (US)
HAO BING (US)
Application Number:
PCT/US2012/047054
Publication Date:
March 14, 2013
Filing Date:
July 17, 2012
Export Citation:
Assignee:
3M INNOVATIVE PROPERTIES CO (US)
PADIYATH RAGHUNATH (US)
MARTTILA CHARLES A (US)
HAO BING (US)
PADIYATH RAGHUNATH (US)
MARTTILA CHARLES A (US)
HAO BING (US)
International Classes:
G02B5/04; A47H23/00; E06B9/26; G02B5/20
Domestic Patent References:
WO2011084303A2 | 2011-07-14 |
Foreign References:
US5940149A | 1999-08-17 | |||
US20110043919A1 | 2011-02-24 | |||
US20100007962A1 | 2010-01-14 |
Other References:
See also references of EP 2734872A4
Attorney, Agent or Firm:
OLOFSON, Jeffrey M., et al. (Saint Paul, Minnesota, US)
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