| 摘要 |
PROBLEM TO BE SOLVED: To provide a light selective absorption film having a high solar radiation energy absorption factor α in 300-2500 nm according to ISO9050-2003, having wavelength selectivity in which an emissivity &egr; under 450°C, to be a service temperature, or less is made low, and having high productivity with a simple film structure.SOLUTION: A light selective absorption film formed on a base material has an infrared reflection layer, a sunlight absorption layer and a reflection prevention layer in this order from a base material side. The absorption layer comprises a compound containing 70 atom% of at least one kind of metal element selected from a group comprising Cr, Fe and Ni, silicon (Si) and nitrogen (N). |
