DUAL-SIDED DAYLIGHT REDIRECTING FILM

摘要

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.

主权项

1. A light management construction comprising:
an optical substrate having a first major surface and a second major surface opposite the first major surface; a first solar light redirecting layer disposed on the first major surface of the optical substrate, wherein the first solar light redirecting layer comprises a first microstructured surface comprising a plurality of multi-sided refractive prisms; and a second solar light redirecting layer disposed on the second major surface of the optical substrate, wherein the second solar light redirecting layer comprises a second microstructured surface comprising a plurality of multi-sided refractive prisms, wherein at least one of the first or the second microstructured surface comprises an ordered arrangement of a plurality of asymmetric refractive prisms, such that the first solar light redirecting layer and the second solar light redirecting layer are not identical or mirror images.