The present invention relates to photochromic double-indeno-fused naphthopyrans of the general formula and the use thereof in plastics of all kinds, particularly for ophthalmic purposes. The stool has a flat wooden platform, a cushion that is disposed upon the platform and either three or four legs which depend from the platform. Since the benzoxazole derivative represented by the general formula has an electron-injecting property, the benzoxazole derivative can be suitably used for light-emitting elements, light-emitting devices, and electronic devices. An auxiliary solid state uplighting fixture for use with a downlighting fixture is also disclosed. Such out-of-band backup and restore operations may be performed, in one embodiment, to backup andor restore hardware profile information such as firmware images and corresponding system configuration information.