LIGHT ADJUSTING FILM
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United States of America Patent
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Issued Date -
Jun 4, 2015
app pub date -
Nov 6, 2014
filing date -
Nov 29, 2013
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Abstract
The invention is related to a light adjusting film. The light adjusting film includes a transparent substrate, a plurality of micro lens structures on a light incident surface of the transparent substrate and a plurality of micro triangular prism structures on a light emitting surface of the transparent substrate. The curvature of the micro lens structures is in a range of 50 μm−1 to 500 μm−1, and the position of each of micro lens structures is corresponding to that of one or more of the micro triangular prism structures. By designing of the micro lens structures together with the triangular prism structures, sunlight can be used effectively so as to achieve energy saving performance.
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