| abstract |
An article of manufacture that comprises a structure that is a security system device (or portion thereof) or a fire system device (or portion), where a persistent phosphor and/or a persistent phosphor blend is either integrated in a coating on the structure; applied on the structure; or integrated in the structure, wherein the persistent phosphor comprises certain phosphors or phosphor blends. The present invention has been described in terms of specific embodiment(s), and it is recognized that equivalents, alternatives, and modifications, aside from those expressly stated, are possible and within the scope of the appending claims. |