| 摘要 |
Apparatus for inhibiting the transmission of solar energy above a predetermined temperature range, but permitting transmission of said energy below that range, is disclosed. A layer of material is provided which undergoes a reversable, macroscopically non-mechanical change affecting the transmissivity of the material to solar energy in the desired temperature range. Because of such change, the material is at least 50% less transmissive to solar energy above the transition temperature range than below the range. This layer of material is mounted so that its physical configuration is substantially maintained.
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