Film structure (IMAGE) Optica Caption The blue version of the films uses a multilayer structure designed to reflect yellow light in a very narrow range of angles while the disordered structure diffuses the blue light across a broad area. To prevent the absorption of solar radiation and the associated heating, the structure is placed on a silver total reflection layer. Credit Wanlin Wang, Shenzhen University Usage Restrictions None License Original content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.