Multiple sequenced daylight redirecting layers
Assignee3M Innovative Properties Company
InventorsRaghunath Padiyath, Charles A. Marttila, Bing Hao
Life of this patent
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Abstract
Some solar light redirecting glazing constructions include a glazing substrate and two solar light redirecting layers present on the two major surfaces of the glazing substrate. Other solar light redirecting glazing constructions include two glazing substrates, each glazing substrate having a light redirecting layer present on one of the major surfaces of the glazing 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.
Claims19
A solar light redirecting glazing construction comprising:
- a first glazing substrate having a first major surface and a second major surface;
- a first solar light redirecting layer disposed on the first major surface of the first glazing substrate, the first solar light redirecting layer comprising a microstructured surface forming a plurality of prism structures;
- and
- a second solar light redirecting layer disposed on the second major surface of the first glazing substrate, the second solar light redirecting layer comprising a microstructured surface forming a plurality of prism structures, 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.
A solar light redirecting glazing construction comprising:
- a first glazing substrate having a first major surface and a second major surface;
- a first solar light redirecting layer disposed on either the first major surface or the second major surface of the first glazing substrate, the first solar light redirecting layer comprising a major surface forming a plurality of prism structures;
- a second glazing substrate having a first major surface and a second major surface;
- and
- a second solar light redirecting layer disposed on the first major surface or the second major surface of the second glazing substrate, the second solar light redirecting layer comprising a major surface forming a plurality of prism structures, wherein at least one of the first or the second micro structured 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.
Dependencies are inferred from the claim text.