A heat wave shielding lamination consisting of at least two In.sub.2 O.sub.3 shield layers containing different amounts of Sn is provided on the surface of a glass substrate to provide shielding against heat waves without causing heat wave pollution in the surrounding environment. The amount of tin contained...http://www.google.ca/patents/US4583815?utm_source=gb-gplus-sharePatent US4583815 - Heat wave shielding lamination
