| 摘要 |
A spectral selective coating comprising (a) a binder of transmission preferably exceeding 75% in the of 0.7-2.5 micron near infrared, (b) a first pigment which selectively absorbs light within the range 0.35-0.7 micron thermal infrared wavelength, and (c) a second pigment which scatters and/or reflects light within the 2.5-50 micron thermal infrared wavelength range is new. A spectral selective coating comprising (a) a binder of transmission exceeding 60, preferably exceeding 75% in the 0.7-2.5 micron near infrared, and transmission exceeding 40, preferably 50 % in the 2.5-50 micron and at least 5-35 micron thermal infrared range,; (b) a first pigment which selectively absorbs 40, preferably 60% of visible light within the 0.35-0.7 micron thermal infrared wavelength range, shows more than 40, preferably more than 50% scattering in the 0.7-2.5 micron near infrared range, and 40, preferably 50% transmission in the region 2.5-50 micron thermal infrared, and (c) a second pigment which scatters and/or reflects 40, preferably 50% light in the range 2.5-50 micron, or at least 5-25 micron thermal infrared wavelength range.
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