Solar heat collector tube
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United States of America Patent
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May 18, 2021
Grant Date -
Feb 7, 2019
app pub date -
Nov 18, 2016
filing date -
Jan 29, 2016
priority date (Note) -
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Abstract
A solar heat collector tube in which at least an infrared reflective layer, a sunlight-heat conversion layer and an anti-reflection layer are provided on the outer surface of a tube, through the interior of which a heat medium can flow, wherein the infrared reflective layer in the solar heat collector tube has a multilayer structure in which an Ag layer, having dispersed therein at least one metal selected from the group consisting of Mo, W, Ta, Nb and Al, is sandwiched between two metal protective layers.
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